{ "data": { "a": { "slug": "letta", "name": "Letta", "vendor": "Letta", "vendorUrl": "https://www.letta.com", "kind": "harness", "category": "agent-harnesses", "summary": "Letta, from the MemGPT team, is an open-source agent harness (formerly Letta Code) for stateful agents that keep memory blocks, skills and conversations across sessions, used from a CLI, chat.letta.com, messaging channels or the Agent SDK, with Letta Cloud.", "url": "https://www.anchorterminal.com/tools/letta", "markdownUrl": "https://www.anchorterminal.com/tools/letta.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/letta.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/letta.json", "dns": "letta.grade.anchorterminal.com", "repo": "https://github.com/letta-ai/letta-code", "license": "Apache-2.0", "transports": [ "stdio" ], "packages": [ { "registry": "npm", "name": "@letta-ai/letta-code" }, { "registry": "pypi", "name": "letta" } ], "auth": "mixed", "authNotes": "Local use needs only the user's own model keys or coding-plan logins through `/connect`. Signing in with Letta (`/login`, OAuth in the browser) stores agents in Letta Cloud and enables remote computers and secrets. Developer plans use Letta API keys.", "pricing": "freemium", "pricingNotes": "Free plan at $0 with bring-your-own keys and limited agents and storage. Pro $20 a month with Letta Auto quotas and up to 20 agents. API plan $20 a month plus $0.10 per active agent a month and $0.00015 a second of tool execution, with LLM usage at token cost.", "priceSummary": "$20 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the letta-code source, docs.letta.com's llms.txt or the pricing page (checked 2026-11-06).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 3793, "npmWeekly": 85863, "pypiWeekly": 2225, "asOf": "2026-11-06" }, "docsUrl": "https://docs.letta.com", "llmsTxt": "https://docs.letta.com/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent", "memory.store", "memory.search" ], "tags": [ "open-source", "local", "hosted", "freemium", "apache-2.0", "typescript", "cli", "headless", "telemetry", "llms-txt", "memory" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 59.7, "grade": "C", "agentReady": false, "rank": 684, "ranked": true, "rankOf": 1486, "categoryRank": 18, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 67, "maintenance": 85, "payments": 60, "reliability": 58, "schema": 70, "security": 35, "transparency": 55 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-06" }, "negative": 0, "verdict": "Letta's open-source harness gives agents git-tracked memory blocks, skills, subagents and headless JSON runs, with a $0 plan and public per-agent API prices. It starts in the unrestricted permission mode, defaults to Letta Cloud, sends usage telemetry unless LETTA_CODE_TELEM=0 is set, and the V1 API server the comparisons describe is retired.", "bestFor": "Long-lived coding agents and assistants that keep memory and identity across sessions and machines.", "strengths": [ "Apache-2.0 harness on npm and PyPI with 0.34.42 released on 6 November 2026, and releases most days", "Memory blocks and MemFS keep an agent's context in git, with optional sync to the user's own repository", "Headless runs with `-p` and `--output-format json`, plus a TypeScript Agent SDK and a self-hosted App Server", "Public prices, a $0 plan with bring-your-own keys, and an API plan at $20 a month plus $0.10 per active agent", "Runs locally without signing in, with `letta backend local` or `--backend local`" ], "weaknesses": [ "The default permission mode is `unrestricted`, the renamed `bypassPermissions`, so tool calls aren't confirmed unless the user picks another mode", "Letta Cloud is the default backend, so agent memory and conversations go to Letta's servers unless the user chooses local", "Usage telemetry is on by default, with the LETTA_CODE_TELEM=0 opt-out found only in the source", "The Letta V1 Python API server is retired and unsupported, and the letta-ai/letta repository is now a landing page", "The privacy policy names no legal entity or date and says hosted message data may train future models" ], "agentNotes": [ "Start headless runs with an explicit permission mode such as `standard` or `strict`; the default auto-approves tools", "Pass `--backend local` for work that must stay on the machine, since Letta Cloud is the default", "Set LETTA_CODE_TELEM=0 in unattended runs if usage events must not be sent", "Use `letta -p --output-format json` for scripted runs and parse the JSON, not the terminal output", "Don't plan on the retired V1 REST server or `.af` AgentFile import; both are gone" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 59.7 } ], "editorialScores": { "ergonomics": 67, "maintenance": 85, "payments": 60, "reliability": 58, "schema": 70, "security": 35, "transparency": 55 }, "provenanceScore": 54, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npm install -g @letta-ai/letta-code", "headless": { "local": "letta --backend local", "run": "letta -p --output-format json \"\u003ctask\u003e\"", "server": "letta server" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/letta" }, "alsoIn": [ "agent-memory" ], "area": "frameworks", "unitPrices": [ { "item": "Pro plan", "unit": "month", "usd": 20, "note": "Letta Auto quotas, up to 20 agents" }, { "item": "API plan active agent", "unit": "month", "usd": 0.1, "note": "Plus $20 a month base and $0.00015 a second of tool execution" } ], "provenance": { "legalEntity": "", "domain": "letta.com", "domainRegistered": "1997-10-01", "endpointOnVendorDomain": null, "terms": "https://www.letta.com/terms-of-service", "privacy": "https://www.letta.com/privacy-policy", "statusPage": "", "changelog": "https://github.com/letta-ai/letta-code/releases", "securityTxt": "none", "checked": "2026-11-06", "notes": [ "The privacy policy shows no last-updated date and names no legal entity, only Letta. It says hosted message data may be used to train new models and that basic telemetry can be turned off in settings when supported.", "www.letta.com and docs.letta.com robots.txt allow all crawlers.", "RDAP gives letta.com a registration date of 1 October 1997, which predates the company, so the domain was bought later.", "/.well-known/security.txt returns 404. SECURITY.md in letta-ai/letta asks for reports to support@letta.com.", "The terms URL is the conventional path and was not read; the policy reader checks it at landing." ], "score": 54 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/letta.json", "live": { "slug": "letta", "versions": [ { "registry": "github", "name": "letta-ai/letta-code", "version": "v0.34.43", "released": "2026-11-06", "seenAt": "2026-11-06T23:39:39.434291816Z" }, { "registry": "npm", "name": "@letta-ai/letta-code", "version": "0.34.43", "seenAt": "2026-11-06T23:39:38.413416142Z" }, { "registry": "pypi", "name": "letta", "version": "0.34.12", "released": "2026-10-12", "seenAt": "2026-11-06T23:39:39.241816797Z" } ], "githubStars": 3794, "npmWeekly": 85863, "pypiWeekly": 2225, "securityTxt": { "url": "https://letta.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:02.768002207Z" }, "llmsTxt": { "url": "https://docs.letta.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:52.28674296Z" }, "pages": [ { "url": "https://www.letta.com/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:30:46.549817082Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "947a68f3e3a0" }, { "url": "https://www.letta.com/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:30:48.740250784Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "63f31d6ebfb8" } ], "updatedAt": "2026-11-07T16:01:02.768002207Z" } }, "answer": "Letta scores 59.7 (C) on agent readiness against Rovo Dev CLI's 44.1 (E), and leads in 5 of 7 scored categories. Rovo Dev CLI leads on security \u0026 auth and transparency \u0026 trust.", "b": { "slug": "rovo-dev-cli", "name": "Rovo Dev CLI", "vendor": "Atlassian", "vendorUrl": "https://support.atlassian.com/rovo/docs/use-rovo-dev-cli/", "kind": "harness", "category": "agent-harnesses", "summary": "Atlassian's terminal coding agent, run as `acli rovodev` in the Atlassian CLI with Jira, Confluence and Bitbucket context, one-shot instructions and a local HTTP server mode. Atlassian has announced it will become the Atlassian Rovo CLI.", "url": "https://www.anchorterminal.com/tools/rovo-dev-cli", "markdownUrl": "https://www.anchorterminal.com/tools/rovo-dev-cli.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/rovo-dev-cli.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/rovo-dev-cli.json", "dns": "rovo-dev-cli.grade.anchorterminal.com", "license": "Proprietary, under the Atlassian Customer Agreement (effective 1 October 2026) and the Atlassian AI Terms (effective 17 August 2026). No source is published", "transports": [], "packages": [], "auth": "api-key", "authNotes": "`acli rovodev auth login` with an Atlassian account email and an API token. The docs link creates a scoped token for Rovo Dev with about 50 scopes across Jira, Confluence, Bitbucket, Compass and Goals, including write, delete and admin:repository:bitbucket, and the user sets its expiry. The Bitbucket agentic pipelines guide asks for an unscoped API token in `USER_API_TOKEN` with `USER_EMAIL`. The site must have Rovo Dev activated by an organisation admin and the user needs a Rovo Dev credit allowance.", "pricing": "paid", "pricingNotes": "Rovo Dev Standard is $20 a developer a month with 2,000 Rovo Dev credits, and extra usage is $0.01 a credit if the organisation turns it on. Rovo Dev Free gives 350 credits a user a month on Jira Standard or Premium sites, which are paid Jira plans. The 30-day Standard trial excludes the CLI. Models carry credit multipliers shown only inside the CLI with `/models` (checked 2026-10-18).", "priceSummary": "$20 / seat-mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Rovo Dev docs, the pricing page or the licensing FAQ (checked 2026-10-18).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-18" }, "docsUrl": "https://support.atlassian.com/rovo/docs/use-rovo-dev-cli/", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "harness", "coding-agent", "cli", "closed-source", "mcp", "paid", "no-status-page" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 44.1, "grade": "E", "agentReady": false, "rank": 1217, "ranked": true, "rankOf": 1486, "categoryRank": 49, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 53, "maintenance": 61, "payments": 15, "reliability": 35, "schema": 45, "security": 48, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-18" }, "negative": 0, "verdict": "Tool permissions default to ask for writes and shell commands, with regex rules and compound commands split before matching. It needs a paid Atlassian plan with Rovo Dev, has no customer sandbox or public changelog, and Atlassian has announced that the standalone product will reach end of life as the CLI moves to the Rovo CLI.", "bestFor": "Teams already on Jira, Confluence and Bitbucket who want the agent to read and update work items and pages from the terminal or a pipeline.", "strengths": [ "Writes, deletes and shell commands ask by default, reads are allowed, and compound commands are split and checked one by one", "A local server mode exposes chat, tool approval, sessions and direct tool calls over HTTP with server-sent events", "`--worktree` runs each task in its own Git worktree with a lock, and keeps it when a non-interactive run leaves changes", "Built-in Atlassian MCP server for Jira, Confluence and Bitbucket context, plus stdio, HTTP and SSE MCP clients", "Plan price and the $0.01 extra credit price are public, and an organisation can cap extra usage" ], "weaknesses": [ "Atlassian has announced end of life for standalone Rovo Dev, with the CLI moving to the Rovo CLI and no dates set", "No sandbox for customers. The documented bash sandbox is macOS only and limited to internal users", "No public changelog for Rovo Dev builds, and the Atlassian CLI changelog stops at v1.3.15 while its package repository serves 1.3.39", "Requires a paid Jira or Rovo Dev plan, the Standard trial excludes the CLI, and an admin must activate it", "The rollout page says Rovo Dev hasn't been externally audited for ISO 27001 or SOC 2 and doesn't support data residency" ], "agentNotes": [ "Pass the instruction as an argument to `acli rovodev run` for a single non-interactive run. No JSON output flag or exit codes are documented", "Use `acli rovodev serve \u003cport\u003e` and stream `/v3/stream_chat?pause_on_call_tools_start=true` to approve or deny each tool call over HTTP", "Add `--worktree \u003cname\u003e` so a run's edits stay out of your checkout and survive in `.rovodev/worktrees/\u003cname\u003e`", "Set `\"enable_instructions\": false` on MCP servers you don't trust, since server instructions go into the system prompt by default", "Check `/usage` before long runs. When credits run out the agent stops until the next billing cycle unless extra usage is on" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 4, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.1 } ], "editorialScores": { "ergonomics": 53, "maintenance": 61, "payments": 15, "reliability": 35, "schema": 45, "security": 48, "transparency": 41 }, "provenanceScore": 84, "checked": { "categories": { "ergonomics": "2026-10-18", "maintenance": "2026-10-18", "payments": "2026-10-18", "reliability": "2026-10-18", "schema": "2026-10-18", "security": "2026-10-18", "transparency": "2026-10-18" }, "last": "2026-10-18", "lastMoved": "2026-10-27", "oldest": "2026-10-18", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "brew tap atlassian/homebrew-acli \u0026\u0026 brew install acli \u0026\u0026 acli rovodev auth login", "headless": { "curl": "curl -X POST http://localhost:8123/v3/set_chat_message -H \"Content-Type: application/json\" -d '{\"message\": \"Run the tests and show me any failures\"}'", "run": "acli rovodev run --worktree fix-tests \"Fix the failing test in tests/test_api.py\"", "server": "acli rovodev serve 8123" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/rovo-dev-cli" }, "sameCompany": [ "atlassian-rovo-mcp" ], "area": "frameworks", "unitPrices": [ { "item": "Rovo Dev Standard", "unit": "seat-month", "usd": 20, "note": "per developer, with 2,000 Rovo Dev credits" }, { "item": "Extra Rovo Dev credit", "unit": "credit", "usd": 0.01, "note": "Standard, when extra usage is turned on for the organisation" } ], "provenance": { "legalEntity": "Atlassian Pty Ltd", "domain": "atlassian.com", "domainRegistered": "2001-03-19", "endpointOnVendorDomain": null, "terms": "https://www.atlassian.com/legal/atlassian-customer-agreement", "privacy": "https://www.atlassian.com/legal/privacy-policy", "statusPage": "", "changelog": "https://developer.atlassian.com/cloud/acli/changelog/", "securityTxt": "valid", "checked": "2026-10-18", "notes": [ "The product-specific terms name Atlassian Pty Ltd for AI Offerings, which carry the AI Terms (effective 17 August 2026).", "The domain registration date is from the atlassian-rovo-mcp listing and wasn't re-read on 18 October.", "rovo.status.atlassian.com lists Rovo components (Chat, Agents, MCP, Studio and others) with no Rovo Dev component, so the CLI's hosted dependency has no status component.", "The Atlassian CLI changelog's newest release entry is v1.3.15-stable of 25 March 2026, while the apt repository served 1.3.39-stable on 23 September 2026. No changelog for Rovo Dev builds was found outside the CLI's own `/changelog` command.", "www.atlassian.com/.well-known/security.txt is PGP-signed with Expires 2027-02-04." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/rovo-dev-cli.json", "live": { "slug": "rovo-dev-cli", "securityTxt": { "url": "https://atlassian.com/.well-known/security.txt", "state": "valid", "expires": "2027-02-04T00:00:00.000Z", "checkedAt": "2026-11-07T16:00:05.264223293Z" }, "domain": { "domain": "atlassian.com", "registered": "2001-03-19", "source": "https://rdap.verisign.com/com/v1/domain/atlassian.com", "checkedAt": "2026-11-01T14:11:11.424415394Z" }, "pages": [ { "url": "https://developer.atlassian.com/cloud/acli/changelog/", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:02:52.455010303Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3f576acf37cb" }, { "url": "https://www.atlassian.com/licensing/rovo-dev", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:25:06.194504971Z", "changedAt": "2026-11-06T13:46:20.975925576Z", "fingerprint": "3d42ff98b18e" }, { "url": "https://www.atlassian.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:25:04.16666345Z", "changedAt": "2026-11-03T08:03:10.921862458Z", "fingerprint": "caa9a812c573" }, { "url": "https://www.atlassian.com/legal/atlassian-customer-agreement", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:25:01.042991876Z", "changedAt": "2026-11-04T08:37:16.952761534Z", "fingerprint": "e926b026c3ca" } ], "updatedAt": "2026-11-07T16:00:05.264223293Z" } }, "edges": [ { "by": 45, "category": "payments", "leads": "letta", "name": "Payments \u0026 pricing", "reasons": { "a": "No x402, MPP or L402 (0 of 40). Per-unit API prices are public, $0.10 per active agent a month and $0.00015 a second of tool execution, plus plan prices (20). A $0 plan with bring-your-own keys; no card is mentioned (20). The CLI runs locally without signing in (20). Total 60.", "b": "Harness reading of the published rubric, scored on the Rovo Dev subscription the CLI needs. No payment protocol (0). Rovo Dev Standard is $20 a developer a month with 2,000 credits and extra credits are $0.01, both public. The credit multiplier for each model is shown only inside the CLI, and a task is given only as a range (5 to 50 tasks per 2,000 credits), so a run's cost can't be worked out before signing up. Judgement call between the 10 for plan-only pricing and the full 20 (15). Rovo Dev Free gives 350 credits a month, but only on Jira Standard or Premium sites, which are paid plans, and the 30-day Standard trial excludes the CLI (0). An organisation admin activates Rovo Dev and the user creates an API token in a browser (0). 0+15+0+0 = 15." }, "scores": { "a": 60, "b": 15 } }, { "by": 25, "category": "schema", "leads": "letta", "name": "Schema \u0026 documentation", "reasons": { "a": "Harness reading. docs.letta.com serves llms.txt and a Markdown version of every page, with an `applies_to` block saying which backend and interface each page covers (10). TypeScript types for the Agent SDK and a documented App Server WebSocket protocol, but no JSON Schema or OpenAPI for the harness (15 of 25). Pages say when to use local or cloud backends, subagents and channels (14 of 20). Permission modes and options are typed in the SDK (12 of 15). Example applications and a remote client reference (11 of 15). Releases most days but no changelog file (8 of 15). Total 70.", "b": "Framework reading. Server mode lists its /v3 endpoints with request bodies, and an Atlassian engineering post of 27 October 2025 says Swagger docs are served at localhost:\u003cport\u003e/docs. That contract is only visible on a running server, and no schema for the SSE events or the config file was published (12). No llms.txt on support.atlassian.com or developer.atlassian.com, and no Markdown twins found (0). The tools page says what allow, ask and deny do, what YOLO mode skips and that MCP tools keep their permissions, and the settings page gives each default. Little says when not to use a mode (12). Permission levels, console output formats and tool names are enumerated in the settings reference with defaults (10). Server mode has curl, Python and JavaScript examples. No exit codes or error responses are documented beyond the post's note that a failed entitlement check disables every endpoint except healthcheck and shutdown (7). The API path is versioned (/v3), but there is no public changelog for Rovo Dev builds (4). 12+0+12+10+7+4 = 45." }, "scores": { "a": 70, "b": 45 } }, { "by": 24, "category": "maintenance", "leads": "letta", "name": "Maintenance \u0026 community", "reasons": { "a": "v0.34.42 on 6 November 2026 (30). Dozens of releases in 90 days (20). Pull requests are merged daily; recent issues from users have few replies (15 of 25). npm and PyPI packages and the Agent SDK track the releases (12 of 15). Lock files, CI and nightly smoke tests (8 of 10). Total 85.", "b": "Atlassian's AtlasCode extension, which downloads the same Rovo Dev binary for the IDE, pinned build 202610.16.1b1 in its pre-release of 16 October 2026, and the Atlassian CLI repository served 1.3.39-stable on 23 September 2026. We didn't run the CLI to read the version it installs. Judgement call (30). AtlasCode pinned eight Rovo Dev builds between 23 July and 16 October 2026 (20). No public changelog for the builds. Support is through Atlassian Support and the community, where the Rovo Dev board was last active on 16 January 2026 (5). No SDK and no registry entry. The server-mode API is kept current for the IDE extension (3). The Homebrew formula carries checksums and the Linux repositories are signed. There's no public CI (3). 30+20+5+3+3 = 61." }, "scores": { "a": 85, "b": 61 } }, { "by": 23, "category": "reliability", "leads": "letta", "name": "Reliability", "reasons": { "a": "Local-software lines, read for the harness. `@letta-ai/letta-code` on npm with Node.js 22.19 or newer, and PyPI wheels for glibc Linux, macOS 14 and Windows x64 with Python 3.9 or newer stated (20). ci.yml, nightly update smoke tests and Telegram live smoke tests exist, but GitHub's API answered with a rate limit, so run results were unread (15 of 25, unchecked). 332 open issues and pull requests, mostly pull requests; recent bug reports such as recall reading the wrong conversation have no reply yet (15 of 25). 398 tags at 0.34.x with release notes on GitHub, no changelog file, and breaking removals such as AgentFile announced in the README (8 of 15). Pre-1.0 (0). Total 58.", "b": "Local-package reading, the same as the other closed-source harnesses. Rovo Dev ships inside the Atlassian CLI, which installs from a Homebrew tap with SHA-256 checksums, signed apt and yum repositories and curl downloads for macOS, Linux and Windows on amd64 and arm64, and Rovo Dev downloads itself on first use (20). No public CI or test suite, since the source isn't published (0). No public issue tracker. The Rovo Dev community board was last active on 16 January 2026, and bugs otherwise go to `/feedback` and Atlassian Support, so open crash reports can't be counted (8). Rovo Dev builds moved from 0.13.x to date-based versions such as 202604.30.2 and 202610.16.1b1, per AtlasCode's changelog and manifest, and have no public changelog, and the Atlassian CLI changelog stops at v1.3.15 while its repository serves 1.3.39 (2). Rovo Dev has been rolling out as a product since October 2025, but the version number carries no stability signal and Atlassian has announced that the standalone product will reach end of life. Judgement call (5). The CLI runs against Atlassian's hosted service, and the Rovo status page has no Rovo Dev component. 20+0+8+2+5 = 35." }, "scores": { "a": 58, "b": 35 } }, { "by": 14, "category": "ergonomics", "leads": "letta", "name": "Agent ergonomics", "reasons": { "a": "Harness reading. Toolsets switch with `/model`, skills load per agent, and subagents run in the background (18 of 25). Context is managed through memory blocks, reflection and dreaming (12 of 20). `letta -p --output-format json` for scripted runs and an App Server for programmatic control (12 of 20). Conversations resume by agent and conversation id, and memory is git-tracked so changes can be reverted (15 of 20). Runs with no account on the local backend, with one SDK language, TypeScript (10 of 15). Total 67.", "b": "Framework reading, adapted to a harness driven by a pipeline. Per-tool allow, ask and deny, `allowedMcpServers` and `disabledMcpServers`, tool lists on subagents and skills, and `/prune` to drop tool results from context (15). The console output format is markdown, simple or raw. No JSON output for `acli rovodev run` is documented, server mode streams JSON events, and no turn or spend cap exists beyond the credit allowance and `/efficiency` (10). No exit codes are documented. Server mode reports entitlement and credit failures, per the engineering post (6). Sessions persist with `--restore`, fork and rename. `--worktree` isolates a run with a lock and keeps the worktree when a non-interactive run leaves changes, and server mode has cancel and reset (15). Sensible defaults, but no SDK, and a run needs an API token, a Rovo Dev licence and an activated site (7). 15+10+6+15+7 = 53." }, "scores": { "a": 67, "b": 53 } }, { "by": 13, "category": "security", "leads": "rovo-dev-cli", "name": "Security \u0026 auth", "reasons": { "a": "Harness reading of the framework checklist, as for the other harnesses. 30 for what leaves the machine by default, 20 for approvals and sandboxing, 15 for injection posture, 15 for audit and 20 for the security programme. Letta Cloud is the default backend, so agent state and conversations go to Letta's servers, and telemetry is on by default (10 of 30). The default permission mode is `unrestricted`; `standard`, `acceptEdits` and `strict` are opt-in, and cloud sandboxes exist for remote work (4 of 20). No prompt-injection guidance found for fetched pages or channel messages (5 of 15). Conversation search and git history of memory give an operator a record of what the agent saw and changed (10 of 15). SECURITY.md routes reports to support@letta.com and scopes out the retired server; no security.txt, bounty or certification found (6 of 20). Total 35.", "b": "Harness reading of the framework checklist, as for the other harnesses. 30 for credentials and what leaves the machine, 20 for approvals and sandboxing, 15 for prompt-injection posture, 15 for audit and 20 for the security programme. The CLI processes data on the device and sends prompts to Atlassian's models, whose providers don't retain or train on them, per the Rovo privacy page and the AI Terms. The scoped token the docs create carries about 50 scopes including write, delete and admin:repository:bitbucket, the pipelines guide asks for an unscoped token, and no telemetry description for the CLI was found (12). Writes and shell commands ask by default, reads are allowed, bash rules are regex, compound commands are split and file access stays in the workspace. There is no sandbox for customers (`runInSandbox` is macOS only and for internal users), `--yolo` skips file and shell prompts, and project-level skills in a cloned repository can list pre-approved tools. We found no workspace trust step (10). MCP server instructions go into the system prompt by default, with a per-server `enable_instructions` switch, and the MCP page says data isn't sent to third-party tools without the user's approval (7). Administrators can turn Rovo Dev on and off per organisation and site and see credit use. Logs stay local in ~/.rovodev/logs, and no audit log of CLI actions was found (5). security.txt is valid (Expires 2027-02-04), Atlassian runs a public Bugcrowd bug bounty and publishes its fix objectives. The rollout page says Rovo Dev hasn't been externally audited for ISO 27001 or SOC 2, and we didn't check whether the bounty scope names Rovo Dev (14). 12+10+7+5+14 = 48." }, "scores": { "a": 35, "b": 48 } } ], "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "Letta", "b": "Atlassian", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "stdio", "b": "", "name": "Transports" }, { "a": "OAuth or key", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary, under the Atlassian Customer Agreement (effective 1 October 2026) and the Atlassian AI Terms (effective 17 August 2026). No source is published", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-11-06", "b": "2026-10-16", "name": "Last release" }, { "a": "no date given", "b": "no date given", "name": "Terms last updated" }, { "a": "no date given", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "3.8k stars, 86k npm/wk, 2.2k PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "none", "b": "2/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Letta scores 59.7 (C) on agent readiness against Rovo Dev CLI's 44.1 (E), and leads in 5 of 7 scored categories. Rovo Dev CLI leads on security \u0026 auth and transparency \u0026 trust.", "question": "Which is better for AI agents, Letta or Rovo Dev CLI?" }, { "answer": "Letta is open source (Apache-2.0). No open-source release is listed for Rovo Dev CLI.", "question": "Are Letta and Rovo Dev CLI open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 58 against 35", "Schema \u0026 documentation, 70 against 45", "Agent ergonomics, 67 against 53", "Payments \u0026 pricing, 60 against 15", "Maintenance \u0026 community, 85 against 61" ], "also": [ "Runs on your own machine", "Open source" ], "goodFor": "Long-lived coding agents and assistants that keep memory and identity across sessions and machines.", "slug": "letta", "watchFor": "The default permission mode is `unrestricted`, the renamed `bypassPermissions`, so tool calls aren't confirmed unless the user picks another mode" }, { "aheadOn": [ "Security \u0026 auth, 48 against 35", "Transparency \u0026 trust, 63 against 55" ], "also": null, "goodFor": "Teams already on Jira, Confluence and Bitbucket who want the agent to read and update work items and pages from the terminal or a pipeline.", "slug": "rovo-dev-cli", "watchFor": "Atlassian has announced end of life for standalone Rovo Dev, with the CLI moving to the Rovo CLI and no dates set" } ], "history": { "letta": null, "rovo-dev-cli": [ { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.2, "from": 43.9, "fromGrade": "E", "to": 44.1, "toGrade": "E" } ] }, "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-letta.json", "title": "Agent Zero vs Letta", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-rovo-dev-cli.json", "title": "Agent Zero vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-letta.json", "title": "Aider vs Letta", "url": "https://www.anchorterminal.com/compare/aider-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-rovo-dev-cli.json", 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"mini-swe-agent vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/mini-swe-agent-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/minimax-code-vs-rovo-dev-cli.json", "title": "MiniMax Code vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/minimax-code-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-rovo-dev-cli.json", "title": "Mistral Vibe CLI vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-rovo-dev-cli.json", "title": "Muse Code vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/muse-code-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-rovo-dev-cli.json", "title": "OpenAI Agents API vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/openai-codex-vs-rovo-dev-cli.json", "title": "OpenAI Codex vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/openai-codex-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/opencode-vs-rovo-dev-cli.json", "title": "OpenCode vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/opencode-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/openhands-vs-rovo-dev-cli.json", "title": "OpenHands vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/openhands-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/orca-vs-rovo-dev-cli.json", "title": "Orca vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/orca-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/paseo-vs-rovo-dev-cli.json", "title": "Paseo vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/paseo-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/prime-agent-vs-rovo-dev-cli.json", "title": "Prime Agent vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/prime-agent-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/qoder-cli-vs-rovo-dev-cli.json", "title": "Qoder CLI vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/qoder-cli-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/qwen-code-vs-rovo-dev-cli.json", "title": "Qwen Code vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/qwen-code-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/reflection-mirror-vs-rovo-dev-cli.json", "title": "Mirror CLI vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/reflection-mirror-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-sculptor.json", "title": "Rovo Dev CLI vs Sculptor", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-sculptor" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-t3-code.json", "title": "Rovo Dev CLI vs T3 Code", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-traycer.json", "title": "Rovo Dev CLI vs Traycer", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-traycer" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-unstoppable.json", "title": "Rovo Dev CLI vs Unstoppable", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-unstoppable" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-verdent.json", "title": "Rovo Dev CLI vs Verdent", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-verdent" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-vibe-trading.json", "title": "Rovo Dev CLI vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-warp.json", "title": "Rovo Dev CLI vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/rovo-dev-cli-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-letta.json", "title": "Clawboo vs Letta", "url": "https://www.anchorterminal.com/compare/clawboo-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-rovo-dev-cli.json", "title": "Clawboo vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/clawboo-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-letta.json", "title": "CLI Manager vs Letta", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-rovo-dev-cli.json", "title": "CLI Manager vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-letta.json", "title": "Harness vs Letta", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-rovo-dev-cli.json", "title": "Harness vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/letta-vs-paperclip.json", "title": "Letta vs Paperclip", "url": "https://www.anchorterminal.com/compare/letta-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/letta-vs-parallax-agents.json", "title": "Letta vs Parallax", "url": "https://www.anchorterminal.com/compare/letta-vs-parallax-agents" }, { "json": "https://www.anchorterminal.com/compare/openmausbot-vs-rovo-dev-cli.json", "title": "OpenMausBot vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/openmausbot-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/paperclip-vs-rovo-dev-cli.json", "title": "Paperclip vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/paperclip-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/parallax-agents-vs-rovo-dev-cli.json", "title": "Parallax vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/parallax-agents-vs-rovo-dev-cli" } ], "panel": null, "scores": [ { "by": 23, "edge": "letta", "key": "reliability", "letta": 58, "name": "Reliability", "rovo-dev-cli": 35, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 25, "edge": "letta", "key": "schema", "letta": 70, "name": "Schema \u0026 documentation", "rovo-dev-cli": 45, "weight": 13 }, { "by": 14, "edge": "letta", "key": "ergonomics", "letta": 67, "name": "Agent ergonomics", "rovo-dev-cli": 53, "weight": 13 }, { "by": 13, "edge": "rovo-dev-cli", "key": "security", "letta": 35, "name": "Security \u0026 auth", "rovo-dev-cli": 48, "weight": 14 }, { "by": 45, "edge": "letta", "key": "payments", "letta": 60, "name": "Payments \u0026 pricing", "rovo-dev-cli": 15, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 24, "edge": "letta", "key": "maintenance", "letta": 85, "name": "Maintenance \u0026 community", "rovo-dev-cli": 61, "weight": 7 }, { "by": 8, "edge": "rovo-dev-cli", "key": "transparency", "letta": 55, "name": "Transparency \u0026 trust", "rovo-dev-cli": 63, "weight": 7 } ], "summary": "Letta scores 59.7 (C) on agent readiness against Rovo Dev CLI's 44.1 (E), and leads in 5 of 7 scored categories. Rovo Dev CLI leads on security \u0026 auth and transparency \u0026 trust. Both do agent harnesses.", "tasks": null, "tutorials": [], "verdicts": { "letta": "Letta's open-source harness gives agents git-tracked memory blocks, skills, subagents and headless JSON runs, with a $0 plan and public per-agent API prices. It starts in the unrestricted permission mode, defaults to Letta Cloud, sends usage telemetry unless LETTA_CODE_TELEM=0 is set, and the V1 API server the comparisons describe is retired.", "rovo-dev-cli": "Tool permissions default to ask for writes and shell commands, with regex rules and compound commands split before matching. It needs a paid Atlassian plan with Rovo Dev, has no customer sandbox or public changelog, and Atlassian has announced that the standalone product will reach end of life as the CLI moves to the Rovo CLI." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli", "json": "https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli.min.md" }, "markdown": "Letta scores 59.7 (C) on agent readiness against Rovo Dev CLI's 44.1 (E), and leads in 5 of 7 scored categories. Rovo Dev CLI leads on security \u0026 auth and transparency \u0026 trust. Both do agent harnesses.\n\n- Letta: grade C, 59.7/100, rank #684 of 1486. Markdown https://www.anchorterminal.com/tools/letta.md · JSON https://www.anchorterminal.com/api/v1/tools/letta.json\n- Rovo Dev CLI: grade E, 44.1/100, rank #1217 of 1486. Markdown https://www.anchorterminal.com/tools/rovo-dev-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/rovo-dev-cli.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 1500 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n- Best memory layers for AI agents: https://www.anchorterminal.com/best/agent-memory/index.md\n- All 353 memory comparisons: https://www.anchorterminal.com/compare/agent-memory/index.md\n\n## Which one, for what\n\n### Letta (C)\n\nGood for: Long-lived coding agents and assistants that keep memory and identity across sessions and machines.\n\nAhead on:\n- Reliability, 58 against 35\n- Schema \u0026 documentation, 70 against 45\n- Agent ergonomics, 67 against 53\n- Payments \u0026 pricing, 60 against 15\n- Maintenance \u0026 community, 85 against 61\n\nAlso in its favour:\n- Runs on your own machine\n- Open source\n\nWatch for: The default permission mode is `unrestricted`, the renamed `bypassPermissions`, so tool calls aren't confirmed unless the user picks another mode\n\n### Rovo Dev CLI (E)\n\nGood for: Teams already on Jira, Confluence and Bitbucket who want the agent to read and update work items and pages from the terminal or a pipeline.\n\nAhead on:\n- Security \u0026 auth, 48 against 35\n- Transparency \u0026 trust, 63 against 55\n\nWatch for: Atlassian has announced end of life for standalone Rovo Dev, with the CLI moving to the Rovo CLI and no dates set\n\n\n## Why the edge\n\n### Payments \u0026 pricing: Letta +45\n\n- Letta (60): No x402, MPP or L402 (0 of 40). Per-unit API prices are public, $0.10 per active agent a month and $0.00015 a second of tool execution, plus plan prices (20). A $0 plan with bring-your-own keys; no card is mentioned (20). The CLI runs locally without signing in (20). Total 60.\n- Rovo Dev CLI (15): Harness reading of the published rubric, scored on the Rovo Dev subscription the CLI needs. No payment protocol (0). Rovo Dev Standard is $20 a developer a month with 2,000 credits and extra credits are $0.01, both public. The credit multiplier for each model is shown only inside the CLI, and a task is given only as a range (5 to 50 tasks per 2,000 credits), so a run's cost can't be worked out before signing up. Judgement call between the 10 for plan-only pricing and the full 20 (15). Rovo Dev Free gives 350 credits a month, but only on Jira Standard or Premium sites, which are paid plans, and the 30-day Standard trial excludes the CLI (0). An organisation admin activates Rovo Dev and the user creates an API token in a browser (0). 0+15+0+0 = 15.\n\n### Schema \u0026 documentation: Letta +25\n\n- Letta (70): Harness reading. docs.letta.com serves llms.txt and a Markdown version of every page, with an `applies_to` block saying which backend and interface each page covers (10). TypeScript types for the Agent SDK and a documented App Server WebSocket protocol, but no JSON Schema or OpenAPI for the harness (15 of 25). Pages say when to use local or cloud backends, subagents and channels (14 of 20). Permission modes and options are typed in the SDK (12 of 15). Example applications and a remote client reference (11 of 15). Releases most days but no changelog file (8 of 15). Total 70.\n- Rovo Dev CLI (45): Framework reading. Server mode lists its /v3 endpoints with request bodies, and an Atlassian engineering post of 27 October 2025 says Swagger docs are served at localhost:\u003cport\u003e/docs. That contract is only visible on a running server, and no schema for the SSE events or the config file was published (12). No llms.txt on support.atlassian.com or developer.atlassian.com, and no Markdown twins found (0). The tools page says what allow, ask and deny do, what YOLO mode skips and that MCP tools keep their permissions, and the settings page gives each default. Little says when not to use a mode (12). Permission levels, console output formats and tool names are enumerated in the settings reference with defaults (10). Server mode has curl, Python and JavaScript examples. No exit codes or error responses are documented beyond the post's note that a failed entitlement check disables every endpoint except healthcheck and shutdown (7). The API path is versioned (/v3), but there is no public changelog for Rovo Dev builds (4). 12+0+12+10+7+4 = 45.\n\n### Maintenance \u0026 community: Letta +24\n\n- Letta (85): v0.34.42 on 6 November 2026 (30). Dozens of releases in 90 days (20). Pull requests are merged daily; recent issues from users have few replies (15 of 25). npm and PyPI packages and the Agent SDK track the releases (12 of 15). Lock files, CI and nightly smoke tests (8 of 10). Total 85.\n- Rovo Dev CLI (61): Atlassian's AtlasCode extension, which downloads the same Rovo Dev binary for the IDE, pinned build 202610.16.1b1 in its pre-release of 16 October 2026, and the Atlassian CLI repository served 1.3.39-stable on 23 September 2026. We didn't run the CLI to read the version it installs. Judgement call (30). AtlasCode pinned eight Rovo Dev builds between 23 July and 16 October 2026 (20). No public changelog for the builds. Support is through Atlassian Support and the community, where the Rovo Dev board was last active on 16 January 2026 (5). No SDK and no registry entry. The server-mode API is kept current for the IDE extension (3). The Homebrew formula carries checksums and the Linux repositories are signed. There's no public CI (3). 30+20+5+3+3 = 61.\n\n### Reliability: Letta +23\n\n- Letta (58): Local-software lines, read for the harness. `@letta-ai/letta-code` on npm with Node.js 22.19 or newer, and PyPI wheels for glibc Linux, macOS 14 and Windows x64 with Python 3.9 or newer stated (20). ci.yml, nightly update smoke tests and Telegram live smoke tests exist, but GitHub's API answered with a rate limit, so run results were unread (15 of 25, unchecked). 332 open issues and pull requests, mostly pull requests; recent bug reports such as recall reading the wrong conversation have no reply yet (15 of 25). 398 tags at 0.34.x with release notes on GitHub, no changelog file, and breaking removals such as AgentFile announced in the README (8 of 15). Pre-1.0 (0). Total 58.\n- Rovo Dev CLI (35): Local-package reading, the same as the other closed-source harnesses. Rovo Dev ships inside the Atlassian CLI, which installs from a Homebrew tap with SHA-256 checksums, signed apt and yum repositories and curl downloads for macOS, Linux and Windows on amd64 and arm64, and Rovo Dev downloads itself on first use (20). No public CI or test suite, since the source isn't published (0). No public issue tracker. The Rovo Dev community board was last active on 16 January 2026, and bugs otherwise go to `/feedback` and Atlassian Support, so open crash reports can't be counted (8). Rovo Dev builds moved from 0.13.x to date-based versions such as 202604.30.2 and 202610.16.1b1, per AtlasCode's changelog and manifest, and have no public changelog, and the Atlassian CLI changelog stops at v1.3.15 while its repository serves 1.3.39 (2). Rovo Dev has been rolling out as a product since October 2025, but the version number carries no stability signal and Atlassian has announced that the standalone product will reach end of life. Judgement call (5). The CLI runs against Atlassian's hosted service, and the Rovo status page has no Rovo Dev component. 20+0+8+2+5 = 35.\n\n### Agent ergonomics: Letta +14\n\n- Letta (67): Harness reading. Toolsets switch with `/model`, skills load per agent, and subagents run in the background (18 of 25). Context is managed through memory blocks, reflection and dreaming (12 of 20). `letta -p --output-format json` for scripted runs and an App Server for programmatic control (12 of 20). Conversations resume by agent and conversation id, and memory is git-tracked so changes can be reverted (15 of 20). Runs with no account on the local backend, with one SDK language, TypeScript (10 of 15). Total 67.\n- Rovo Dev CLI (53): Framework reading, adapted to a harness driven by a pipeline. Per-tool allow, ask and deny, `allowedMcpServers` and `disabledMcpServers`, tool lists on subagents and skills, and `/prune` to drop tool results from context (15). The console output format is markdown, simple or raw. No JSON output for `acli rovodev run` is documented, server mode streams JSON events, and no turn or spend cap exists beyond the credit allowance and `/efficiency` (10). No exit codes are documented. Server mode reports entitlement and credit failures, per the engineering post (6). Sessions persist with `--restore`, fork and rename. `--worktree` isolates a run with a lock and keeps the worktree when a non-interactive run leaves changes, and server mode has cancel and reset (15). Sensible defaults, but no SDK, and a run needs an API token, a Rovo Dev licence and an activated site (7). 15+10+6+15+7 = 53.\n\n### Security \u0026 auth: Rovo Dev CLI +13\n\n- Letta (35): Harness reading of the framework checklist, as for the other harnesses. 30 for what leaves the machine by default, 20 for approvals and sandboxing, 15 for injection posture, 15 for audit and 20 for the security programme. Letta Cloud is the default backend, so agent state and conversations go to Letta's servers, and telemetry is on by default (10 of 30). The default permission mode is `unrestricted`; `standard`, `acceptEdits` and `strict` are opt-in, and cloud sandboxes exist for remote work (4 of 20). No prompt-injection guidance found for fetched pages or channel messages (5 of 15). Conversation search and git history of memory give an operator a record of what the agent saw and changed (10 of 15). SECURITY.md routes reports to support@letta.com and scopes out the retired server; no security.txt, bounty or certification found (6 of 20). Total 35.\n- Rovo Dev CLI (48): Harness reading of the framework checklist, as for the other harnesses. 30 for credentials and what leaves the machine, 20 for approvals and sandboxing, 15 for prompt-injection posture, 15 for audit and 20 for the security programme. The CLI processes data on the device and sends prompts to Atlassian's models, whose providers don't retain or train on them, per the Rovo privacy page and the AI Terms. The scoped token the docs create carries about 50 scopes including write, delete and admin:repository:bitbucket, the pipelines guide asks for an unscoped token, and no telemetry description for the CLI was found (12). Writes and shell commands ask by default, reads are allowed, bash rules are regex, compound commands are split and file access stays in the workspace. There is no sandbox for customers (`runInSandbox` is macOS only and for internal users), `--yolo` skips file and shell prompts, and project-level skills in a cloned repository can list pre-approved tools. We found no workspace trust step (10). MCP server instructions go into the system prompt by default, with a per-server `enable_instructions` switch, and the MCP page says data isn't sent to third-party tools without the user's approval (7). Administrators can turn Rovo Dev on and off per organisation and site and see credit use. Logs stay local in ~/.rovodev/logs, and no audit log of CLI actions was found (5). security.txt is valid (Expires 2027-02-04), Atlassian runs a public Bugcrowd bug bounty and publishes its fix objectives. The rollout page says Rovo Dev hasn't been externally audited for ISO 27001 or SOC 2, and we didn't check whether the bounty scope names Rovo Dev (14). 12+10+7+5+14 = 48.\n\n## Score by category\n\n| Category | Weight | Letta | Rovo Dev CLI | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 58 | 35 | Letta +23 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 70 | 45 | Letta +25 |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 53 | Letta +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 35 | 48 | Rovo Dev CLI +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 15 | Letta +45 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 61 | Letta +24 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 55 | 63 | Rovo Dev CLI +8 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **59.7 · C** | **44.1 · E** | |\n\n## Facts side by side\n\n| Fact | Letta | Rovo Dev CLI |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Letta | Atlassian |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | stdio | |\n| Auth | OAuth or key | API key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary, under the Atlassian Customer Agreement (effective 1 October 2026) and the Atlassian AI Terms (effective 17 August 2026). No source is published |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-11-06 | 2026-10-16 |\n| Terms last updated | no date given | no date given |\n| Privacy policy last updated | no date given | couldn't be read |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | yes | not found in the text |\n| Popularity | 3.8k stars, 86k npm/wk, 2.2k PyPI/wk | none |\n| Agent reviews | none | 2/5 (4) |\n\n## How the scores have moved\n\n### Letta\n\nNo score change since it was listed.\n\n### Rovo Dev CLI\n\n- +0.2 on 27 October 2026: checklist\n\n## Verdicts\n\n**Letta.** Letta's open-source harness gives agents git-tracked memory blocks, skills, subagents and headless JSON runs, with a $0 plan and public per-agent API prices. It starts in the unrestricted permission mode, defaults to Letta Cloud, sends usage telemetry unless LETTA_CODE_TELEM=0 is set, and the V1 API server the comparisons describe is retired.\n\n**Rovo Dev CLI.** Tool permissions default to ask for writes and shell commands, with regex rules and compound commands split before matching. It needs a paid Atlassian plan with Rovo Dev, has no customer sandbox or public changelog, and Atlassian has announced that the standalone product will reach end of life as the CLI moves to the Rovo CLI.\n\n## Before you call either\n\n### Letta\n\n1. Start headless runs with an explicit permission mode such as `standard` or `strict`; the default auto-approves tools\n2. Pass `--backend local` for work that must stay on the machine, since Letta Cloud is the default\n3. Set LETTA_CODE_TELEM=0 in unattended runs if usage events must not be sent\n4. Use `letta -p --output-format json` for scripted runs and parse the JSON, not the terminal output\n5. Don't plan on the retired V1 REST server or `.af` AgentFile import; both are gone\n\n### Rovo Dev CLI\n\n1. Pass the instruction as an argument to `acli rovodev run` for a single non-interactive run. No JSON output flag or exit codes are documented\n2. Use `acli rovodev serve \u003cport\u003e` and stream `/v3/stream_chat?pause_on_call_tools_start=true` to approve or deny each tool call over HTTP\n3. Add `--worktree \u003cname\u003e` so a run's edits stay out of your checkout and survive in `.rovodev/worktrees/\u003cname\u003e`\n4. Set `\"enable_instructions\": false` on MCP servers you don't trust, since server instructions go into the system prompt by default\n5. Check `/usage` before long runs. When credits run out the agent stops until the next billing cycle unless extra usage is on\n\n## Questions\n\n### Which is better for AI agents, Letta or Rovo Dev CLI?\n\nLetta scores 59.7 (C) on agent readiness against Rovo Dev CLI's 44.1 (E), and leads in 5 of 7 scored categories. Rovo Dev CLI leads on security \u0026 auth and transparency \u0026 trust.\n\n### Are Letta and Rovo Dev CLI open source?\n\nLetta is open source (Apache-2.0). No open-source release is listed for Rovo Dev CLI.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli.json, and with the fewest tokens: https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"letta\", \"b\": \"rovo-dev-cli\"}`. From a terminal: `anchor compare letta rovo-dev-cli`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/letta.json and https://www.anchorterminal.com/api/v1/tools/rovo-dev-cli.json\n\n## Other comparisons with Letta or Rovo Dev CLI\n\n- [Agent Zero vs Letta](https://www.anchorterminal.com/compare/agent-zero-vs-letta.md)\n- [Agent Zero vs Rovo Dev CLI](https://www.anchorterminal.com/compare/agent-zero-vs-rovo-dev-cli.md)\n- [Aider vs Letta](https://www.anchorterminal.com/compare/aider-vs-letta.md)\n- [Aider vs Rovo Dev CLI](https://www.anchorterminal.com/compare/aider-vs-rovo-dev-cli.md)\n- [Amp vs Letta](https://www.anchorterminal.com/compare/amp-vs-letta.md)\n- [Amp vs Rovo Dev CLI](https://www.anchorterminal.com/compare/amp-vs-rovo-dev-cli.md)\n- [Antigravity CLI vs Letta](https://www.anchorterminal.com/compare/antigravity-cli-vs-letta.md)\n- [Antigravity CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-rovo-dev-cli.md)\n- [Auggie CLI vs Letta](https://www.anchorterminal.com/compare/auggie-vs-letta.md)\n- [Auggie CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/auggie-vs-rovo-dev-cli.md)\n- [AXLR vs Letta](https://www.anchorterminal.com/compare/axlr-vs-letta.md)\n- [AXLR vs Rovo Dev CLI](https://www.anchorterminal.com/compare/axlr-vs-rovo-dev-cli.md)\n- [Claude Code vs Letta](https://www.anchorterminal.com/compare/claude-code-vs-letta.md)\n- [Claude Code vs Rovo Dev CLI](https://www.anchorterminal.com/compare/claude-code-vs-rovo-dev-cli.md)\n- [Cline vs Letta](https://www.anchorterminal.com/compare/cline-vs-letta.md)\n- [Cline vs Rovo Dev CLI](https://www.anchorterminal.com/compare/cline-vs-rovo-dev-cli.md)\n- [Conductor vs Letta](https://www.anchorterminal.com/compare/conductor-vs-letta.md)\n- [Conductor vs Rovo Dev CLI](https://www.anchorterminal.com/compare/conductor-vs-rovo-dev-cli.md)\n- [Crush vs Letta](https://www.anchorterminal.com/compare/crush-vs-letta.md)\n- [Crush vs Rovo Dev CLI](https://www.anchorterminal.com/compare/crush-vs-rovo-dev-cli.md)\n- [Cursor CLI vs Letta](https://www.anchorterminal.com/compare/cursor-cli-vs-letta.md)\n- [Cursor CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/cursor-cli-vs-rovo-dev-cli.md)\n- [DeepSeek Harness (dsh) vs Letta](https://www.anchorterminal.com/compare/deepseek-harness-vs-letta.md)\n- [DeepSeek Harness (dsh) vs Rovo Dev CLI](https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli.md)\n- [dsh-superagent (DeepSeek) vs Letta](https://www.anchorterminal.com/compare/deepseek-superagent-vs-letta.md)\n- [dsh-superagent (DeepSeek) vs Rovo Dev CLI](https://www.anchorterminal.com/compare/deepseek-superagent-vs-rovo-dev-cli.md)\n- [Devin vs Letta](https://www.anchorterminal.com/compare/devin-vs-letta.md)\n- [Devin vs Rovo Dev CLI](https://www.anchorterminal.com/compare/devin-vs-rovo-dev-cli.md)\n- [Droid CLI vs Letta](https://www.anchorterminal.com/compare/droid-cli-vs-letta.md)\n- [Droid CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/droid-cli-vs-rovo-dev-cli.md)\n- [Pi vs Letta](https://www.anchorterminal.com/compare/earendil-pi-vs-letta.md)\n- [Pi vs Rovo Dev CLI](https://www.anchorterminal.com/compare/earendil-pi-vs-rovo-dev-cli.md)\n- [Emdash vs Letta](https://www.anchorterminal.com/compare/emdash-vs-letta.md)\n- [Emdash vs Rovo Dev CLI](https://www.anchorterminal.com/compare/emdash-vs-rovo-dev-cli.md)\n- [Gemini CLI vs Letta](https://www.anchorterminal.com/compare/gemini-cli-vs-letta.md)\n- [Gemini CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/gemini-cli-vs-rovo-dev-cli.md)\n- [GitHub Copilot CLI vs Letta](https://www.anchorterminal.com/compare/github-copilot-cli-vs-letta.md)\n- [GitHub Copilot CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/github-copilot-cli-vs-rovo-dev-cli.md)\n- [goose vs Letta](https://www.anchorterminal.com/compare/goose-vs-letta.md)\n- [goose vs Rovo Dev CLI](https://www.anchorterminal.com/compare/goose-vs-rovo-dev-cli.md)\n- [Harness² vs Letta](https://www.anchorterminal.com/compare/harness2-vs-letta.md)\n- [Harness² vs Rovo Dev CLI](https://www.anchorterminal.com/compare/harness2-vs-rovo-dev-cli.md)\n- [HarnessRouter vs Letta](https://www.anchorterminal.com/compare/harnessrouter-vs-letta.md)\n- [HarnessRouter vs Rovo Dev CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli.md)\n- [Jules vs Letta](https://www.anchorterminal.com/compare/jules-vs-letta.md)\n- [Jules vs Rovo Dev CLI](https://www.anchorterminal.com/compare/jules-vs-rovo-dev-cli.md)\n- [Junie CLI vs Letta](https://www.anchorterminal.com/compare/junie-vs-letta.md)\n- [Junie CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/junie-vs-rovo-dev-cli.md)\n- [Kilo Code CLI vs Letta](https://www.anchorterminal.com/compare/kilo-code-cli-vs-letta.md)\n- [Kilo Code CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/kilo-code-cli-vs-rovo-dev-cli.md)\n- [Kimi Code CLI vs Letta](https://www.anchorterminal.com/compare/kimi-code-cli-vs-letta.md)\n- [Kimi Code CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/kimi-code-cli-vs-rovo-dev-cli.md)\n- [Kiro CLI vs Letta](https://www.anchorterminal.com/compare/kiro-cli-vs-letta.md)\n- [Kiro CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/kiro-cli-vs-rovo-dev-cli.md)\n- [Letta vs mini-swe-agent](https://www.anchorterminal.com/compare/letta-vs-mini-swe-agent.md)\n- [Letta vs MiniMax Code](https://www.anchorterminal.com/compare/letta-vs-minimax-code.md)\n- [Letta vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/letta-vs-mistral-vibe-cli.md)\n- [Letta vs Muse Code](https://www.anchorterminal.com/compare/letta-vs-muse-code.md)\n- [Letta vs OpenAI Agents API](https://www.anchorterminal.com/compare/letta-vs-openai-agents-api.md)\n- [Letta vs OpenAI Codex](https://www.anchorterminal.com/compare/letta-vs-openai-codex.md)\n- [Letta vs OpenCode](https://www.anchorterminal.com/compare/letta-vs-opencode.md)\n- [Letta vs OpenHands](https://www.anchorterminal.com/compare/letta-vs-openhands.md)\n- [Letta vs OpenMausBot](https://www.anchorterminal.com/compare/letta-vs-openmausbot.md)\n- [Letta vs Orca](https://www.anchorterminal.com/compare/letta-vs-orca.md)\n- [Letta vs Paseo](https://www.anchorterminal.com/compare/letta-vs-paseo.md)\n- [Letta vs Prime Agent](https://www.anchorterminal.com/compare/letta-vs-prime-agent.md)\n- [Letta vs Qoder CLI](https://www.anchorterminal.com/compare/letta-vs-qoder-cli.md)\n- [Letta vs Qwen Code](https://www.anchorterminal.com/compare/letta-vs-qwen-code.md)\n- [Letta vs Mirror CLI](https://www.anchorterminal.com/compare/letta-vs-reflection-mirror.md)\n- [Letta vs Sculptor](https://www.anchorterminal.com/compare/letta-vs-sculptor.md)\n- [Letta vs T3 Code](https://www.anchorterminal.com/compare/letta-vs-t3-code.md)\n- [Letta vs Traycer](https://www.anchorterminal.com/compare/letta-vs-traycer.md)\n- [Letta vs Unstoppable](https://www.anchorterminal.com/compare/letta-vs-unstoppable.md)\n- [Letta vs Verdent](https://www.anchorterminal.com/compare/letta-vs-verdent.md)\n- [Letta vs Vibe-Trading](https://www.anchorterminal.com/compare/letta-vs-vibe-trading.md)\n- [Letta vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/letta-vs-warp.md)\n- [mini-swe-agent vs Rovo Dev CLI](https://www.anchorterminal.com/compare/mini-swe-agent-vs-rovo-dev-cli.md)\n- [MiniMax Code vs Rovo Dev CLI](https://www.anchorterminal.com/compare/minimax-code-vs-rovo-dev-cli.md)\n- [Mistral Vibe CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-rovo-dev-cli.md)\n- [Muse Code vs Rovo Dev CLI](https://www.anchorterminal.com/compare/muse-code-vs-rovo-dev-cli.md)\n- [OpenAI Agents API vs Rovo Dev CLI](https://www.anchorterminal.com/compare/openai-agents-api-vs-rovo-dev-cli.md)\n- [OpenAI Codex vs Rovo Dev CLI](https://www.anchorterminal.com/compare/openai-codex-vs-rovo-dev-cli.md)\n- [OpenCode vs Rovo Dev CLI](https://www.anchorterminal.com/compare/opencode-vs-rovo-dev-cli.md)\n- [OpenHands vs Rovo Dev CLI](https://www.anchorterminal.com/compare/openhands-vs-rovo-dev-cli.md)\n- [Orca vs Rovo Dev CLI](https://www.anchorterminal.com/compare/orca-vs-rovo-dev-cli.md)\n- [Paseo vs Rovo Dev CLI](https://www.anchorterminal.com/compare/paseo-vs-rovo-dev-cli.md)\n- [Prime Agent vs Rovo Dev CLI](https://www.anchorterminal.com/compare/prime-agent-vs-rovo-dev-cli.md)\n- [Qoder CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/qoder-cli-vs-rovo-dev-cli.md)\n- [Qwen Code vs Rovo Dev CLI](https://www.anchorterminal.com/compare/qwen-code-vs-rovo-dev-cli.md)\n- [Mirror CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/reflection-mirror-vs-rovo-dev-cli.md)\n- [Rovo Dev CLI vs Sculptor](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-sculptor.md)\n- [Rovo Dev CLI vs T3 Code](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-t3-code.md)\n- [Rovo Dev CLI vs Traycer](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-traycer.md)\n- [Rovo Dev CLI vs Unstoppable](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-unstoppable.md)\n- [Rovo Dev CLI vs Verdent](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-verdent.md)\n- [Rovo Dev CLI vs Vibe-Trading](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-vibe-trading.md)\n- [Rovo Dev CLI vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/rovo-dev-cli-vs-warp.md)\n- [Clawboo vs Letta](https://www.anchorterminal.com/compare/clawboo-vs-letta.md)\n- [Clawboo vs Rovo Dev CLI](https://www.anchorterminal.com/compare/clawboo-vs-rovo-dev-cli.md)\n- [CLI Manager vs Letta](https://www.anchorterminal.com/compare/cli-manager-vs-letta.md)\n- [CLI Manager vs Rovo Dev CLI](https://www.anchorterminal.com/compare/cli-manager-vs-rovo-dev-cli.md)\n- [Harness vs Letta](https://www.anchorterminal.com/compare/harness-autonomous-vs-letta.md)\n- [Harness vs Rovo Dev CLI](https://www.anchorterminal.com/compare/harness-autonomous-vs-rovo-dev-cli.md)\n- [Letta vs Paperclip](https://www.anchorterminal.com/compare/letta-vs-paperclip.md)\n- [Letta vs Parallax](https://www.anchorterminal.com/compare/letta-vs-parallax-agents.md)\n- [OpenMausBot vs Rovo Dev CLI](https://www.anchorterminal.com/compare/openmausbot-vs-rovo-dev-cli.md)\n- [Paperclip vs Rovo Dev CLI](https://www.anchorterminal.com/compare/paperclip-vs-rovo-dev-cli.md)\n- [Parallax vs Rovo Dev CLI](https://www.anchorterminal.com/compare/parallax-agents-vs-rovo-dev-cli.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Letta vs Rovo Dev CLI", "url": "" } ], "description": "Letta scores 59.7 (C) to Rovo Dev CLI's 44.1 (E) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Letta C 59.7", "Rovo Dev CLI E 44.1", "scores" ], "h1": "Letta vs Rovo Dev CLI", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/letta-vs-rovo-dev-cli", "published": "2026-10-01", "section": "tools", "title": "Letta vs Rovo Dev CLI for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/letta-vs-rovo-dev-cli" }, "tokens": { "markdown": 6950, "slim": 3130 }, "version": 1 }