{ "data": { "a": { "slug": "earendil-pi", "name": "Pi", "vendor": "Earendil", "vendorUrl": "https://pi.dev", "kind": "harness", "category": "agent-harnesses", "summary": "Pi is an open-source terminal coding agent from Earendil, run on the owner's machine with any of 15 or more model providers. It has interactive, print, JSON and RPC modes, a TypeScript SDK and a built-in MCP client.", "url": "https://www.anchorterminal.com/tools/earendil-pi", "markdownUrl": "https://www.anchorterminal.com/tools/earendil-pi.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/earendil-pi.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/earendil-pi.json", "repo": "https://github.com/earendil-works/pi", "license": "MIT", "transports": [], "packages": [ { "registry": "npm", "name": "@earendil-works/pi-coding-agent" } ], "auth": "none", "authNotes": "No Pi account needed. Model providers are connected with `/login` (a subscription or an API key, stored in `~/.pi/agent/auth.json`) or with environment variables such as `ANTHROPIC_API_KEY`. MCP servers take headers, bearer tokens from the environment or OAuth, with tokens kept in `~/.pi/agent/mcp-auth.json`. Radius, the optional hosted gateway, needs its own sign-in or `RADIUS_API_KEY`.", "pricing": "free", "pricingNotes": "Free and MIT, with no paid edition of the harness. The owner pays the model provider. Radius, Earendil's optional hosted gateway, is an early alpha sold by prepaid credits, and no public price list was found (checked 2026-10-08).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the repository or the docs (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 113417, "npmWeekly": 5201697, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://pi.dev/docs/latest", "capabilities": [ "agent.harness", "agent.mcp-client" ], "tags": [ "open-source", "local", "free", "no-card", "typescript", "mcp", "json-output", "rpc", "no-sandbox" ], "lastRelease": "2026-10-07", "graded": true, "anchor": { "graded": true, "score": 68.4, "grade": "B", "agentReady": false, "rank": 180, "ranked": true, "rankOf": 722, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 76, "maintenance": 87, "payments": 60, "reliability": 75, "schema": 84, "security": 61, "transparency": 64 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": -4, "negativeNotes": [ "2026-06-08. GHSA-jfgx-wxx8-mp94 (CVE-2026-54328, high). Temporary extension installs used predictable paths under the system temp directory, so another local user on a shared Linux host could plant extension code that Pi then loaded. Fixed in 0.78.1. Fixed, published and four months old, -2. https://github.com/earendil-works/pi/security/advisories/GHSA-jfgx-wxx8-mp94", "2026-06-08. GHSA-mqxh-6gq7-558m (CVE-2026-54325, medium). Before 0.79.0 Pi loaded a repository's `.pi` settings and extensions without asking, so starting it in a cloned repository could run that repository's code. Fixed in 0.79.0 with project trust. Fixed and published, -2. https://github.com/earendil-works/pi/security/advisories/GHSA-mqxh-6gq7-558m", "2026-06-08. GHSA-7v5m-pr3q-6453 (CVE-2026-54326, low, XSS in HTML session exports) and GHSA-r95r-rj6r-c39x (CVE-2026-54327, low, a race in `auth.json` permissions). Both fixed in 0.78.1. Recorded without a deduction. https://github.com/earendil-works/pi/security/advisories" ], "verdict": "Four default tools, a JSONL event stream, an RPC mode and MCP tools kept out of the model's declarations by default keep context small and scripting simple. Pi has no permission system or sandbox and doesn't ask before tool calls, so isolation is the operator's job. Version 1.0.0 is dated 1 October 2026.", "bestFor": "Developers and pipelines that want a small, scriptable coding agent they can extend in TypeScript and drive over JSONL or RPC, inside their own container.", "strengths": [ "Four default tools (read, bash, edit, write), with MCP tools reachable through codemode scripts and not declared to the model by default", "`--mode json` streams JSONL events and `--mode rpc` takes JSONL commands, both documented record by record, with a Python client example", "Built-in MCP client for stdio and streamable HTTP servers with OAuth, per-tool exposure settings and a conformance job in CI", "Project trust stops a repository's `.pi` settings, extensions and MCP servers loading until approved, and non-interactive modes skip them by default", "npm releases carry SLSA provenance from GitHub Actions trusted publishing, and the installer pins transitive dependencies" ], "weaknesses": [ "No permission system or sandbox. Tool calls run with the user's rights and without an approval prompt", "An anonymous install and update ping to pi.dev and a latest-version request are on by default", "Four advisories published on 8 June 2026, one rated high and one medium, all fixed by 0.79.0", "No privacy policy for pi.dev or the CLI found, and pi.dev has no security.txt", "Eight of the last 15 CI runs on main failed on 7 and 8 October 2026, and a breaking provider rename shipped in patch release 1.0.3" ], "agentNotes": [ "Run Pi inside a container or VM for unattended work. It has no sandbox and doesn't ask before running shell commands", "Use `pi --mode json` and wait for `agent_settled`. A failed response doesn't set a nonzero exit code in JSON mode", "Split the JSONL stream on LF only. Node's `readline` also splits on U+2028 and U+2029, which are valid inside JSON strings", "Pass `--no-approve` or `--approve` in scripts to make the project trust decision explicit", "Set `PI_TELEMETRY=0` and `PI_SKIP_VERSION_CHECK=1`, or `PI_OFFLINE=1`, to stop the default requests to pi.dev" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 68.4 } ], "editorialScores": { "ergonomics": 76, "maintenance": 87, "payments": 60, "reliability": 75, "schema": 84, "security": 61, "transparency": 64 }, "provenanceScore": 63 }, "connect": { "install": "curl -fsSL https://pi.dev/install.sh | sh # or: npm install -g --ignore-scripts @earendil-works/pi-coding-agent", "headless": { "command": "pi --mode json --no-session --no-approve \"$TASK\"", "env": { "PI_SKIP_VERSION_CHECK": "1", "PI_TELEMETRY": "0" } } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/earendil-pi" }, "area": "frameworks", "provenance": { "legalEntity": "Earendil Inc.", "domain": "pi.dev", "domainRegistered": "2024-01-30", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://pi.dev/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The pi.dev and earendil.com footers read Earendil Inc. The Radius alpha terms of 1 September 2026 name Earendil Works Co., and the README calls the company Earendil Works.", "We found no terms or privacy page for pi.dev or the CLI. pi.dev/terms, pi.dev/privacy and earendil.com/privacy return 404. Terms exist only for Radius, at radius.earendil.com/terms.", "pi.dev/.well-known/security.txt and earendil.com/.well-known/security.txt return 404. SECURITY.md gives security@earendil.com and GitHub private reporting.", "RDAP for pi.dev gives a registration date of 2024-01-30 with Cloudflare as registrar. The README says the domain was donated by exe.dev.", "The repository moved from badlogic/pi-mono to earendil-works/pi, and the npm package from @mariozechner/pi-coding-agent to @earendil-works/pi-coding-agent at 0.74.0, per the advisories." ], "score": 63 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/earendil-pi.json", "live": { "slug": "earendil-pi", "versions": [ { "registry": "github", "name": "earendil-works/pi", "version": "v1.1.0", "released": "2026-10-07", "seenAt": "2026-10-08T16:09:44.573412777Z" }, { "registry": "npm", "name": "@earendil-works/pi-coding-agent", "version": "1.1.0", "seenAt": "2026-10-08T16:09:41.369786574Z" } ], "githubStars": 113482, "npmWeekly": 5201697, "securityTxt": { "url": "https://pi.dev/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:42.51766104Z" }, "pages": [ { "url": "https://pi.dev/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:22:53.741589246Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "82f9cb8bddf7" } ], "updatedAt": "2026-10-08T18:22:53.741589246Z" } }, "answer": "goose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories.", "b": { "slug": "goose", "name": "goose", "vendor": "Agentic AI Foundation (originally Block)", "vendorUrl": "https://goose-docs.ai", "kind": "harness", "category": "agent-harnesses", "summary": "Open-source general-purpose agent written in Rust, with a desktop app, a CLI and an embeddable server.", "url": "https://www.anchorterminal.com/tools/goose", "markdownUrl": "https://www.anchorterminal.com/tools/goose.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/goose.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/goose.json", "repo": "https://github.com/aaif-goose/goose", "license": "Apache-2.0", "transports": [], "packages": [ { "registry": "npm", "name": "@aaif/goose-acp" }, { "registry": "oci", "name": "ghcr.io/aaif-goose/goose" } ], "auth": "none", "authNotes": "No account of its own. Model keys go in the system keyring through `goose configure`, in provider environment variables, or come from an existing Claude, ChatGPT or Gemini subscription through ACP providers.", "pricing": "free", "pricingNotes": "Free and Apache-2.0, with nothing to buy. You pay your model provider, or nothing with a local model.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs or the source (checked 2026-10-01).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 54800, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-01" }, "docsUrl": "https://goose-docs.ai/docs/quickstart", "llmsTxt": "https://goose-docs.ai/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "open-source", "local", "free", "no-card", "foundation", "llms-txt", "docker" ], "lastRelease": "2026-09-23", "graded": true, "anchor": { "graded": true, "score": 73.9, "grade": "BB", "agentReady": true, "rank": 72, "ranked": true, "rankOf": 722, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 82, "maintenance": 86, "payments": 60, "reliability": 77, "schema": 81, "security": 77, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -2, "negativeNotes": [ "2026-07-24. GHSA-r5pp-p5r8-466r (CVE-2026-72718, 7.0 at NVD), a repository's git `core.fsmonitor` setting ran arbitrary commands during `goose review` without approval or a sandbox. Fixed in 1.44.0 and published, inside six months, -2. https://github.com/aaif-goose/goose/security/advisories/GHSA-r5pp-p5r8-466r" ], "verdict": "Telemetry off until the user opts in, with the collected fields listed. Autonomous mode, which approves every tool call, is the default.", "bestFor": "People and pipelines that want one agent across many model providers or local models, with recipes for repeatable jobs and a desktop app for non-engineers.", "strengths": [ "Telemetry off until the user opts in, with the collected fields listed", "Four permission modes, per-tool always, ask or never rules, and an extension allowlist an administrator can host", "Headless `goose run` with `--output-format json` or `stream-json`, `--max-turns` and recipes with typed parameters, retries and success checks", "15+ providers, built-in local inference, and existing Claude, ChatGPT or Gemini subscriptions through ACP", "Weekly releases with dated notes, 12 in the 90 days to 1 October 2026" ], "weaknesses": [ "Autonomous mode, which approves every tool call, is the default", "No sandbox, and prompt-injection detection and adversary mode are off by default", "No privacy policy for goose, and the usage-data page doesn't say where data goes or how long it's kept", "No breaking-change section in any of the last ten release notes", "About 270 open issues, many recent ones unanswered" ], "agentNotes": [ "Set `GOOSE_MODE=smart_approve` or `approve` before a run. The default approves everything", "Pass `--max-turns` with a real limit. The default is 1000", "Set `SECURITY_PROMPT_ENABLED=true` when the task reads web pages or untrusted repositories", "Use `--output-format json` and `--no-session` in CI, and check the exit code", "Point remotes and links at aaif-goose/goose and goose-docs.ai. The block/goose paths redirect" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 73.9 } ], "editorialScores": { "ergonomics": 82, "maintenance": 86, "payments": 60, "reliability": 77, "schema": 81, "security": 77, "transparency": 73 }, "provenanceScore": 53 }, "connect": { "install": "curl -fsSL https://github.com/aaif-goose/goose/releases/download/stable/download_cli.sh | bash # or: brew install block-goose-cli", "headless": { "command": "goose run --no-session --max-turns 30 --output-format json -t \"$TASK\"", "env": { "GOOSE_MODE": "smart_approve", "GOOSE_MODEL": "\u003cmodel\u003e", "GOOSE_PROVIDER": "\u003cprovider\u003e", "SECURITY_PROMPT_ENABLED": "true" } } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/goose" }, "area": "frameworks", "provenance": { "legalEntity": "Agentic AI Foundation (Linux Foundation)", "domain": "goose-docs.ai", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/aaif-goose/goose/releases", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The docs footer reads Copyright AAIF (Agentic AI Foundation). Block donated goose, and the escalation contact in SECURITY.md is still a block.xyz address.", "We found no terms or privacy page on goose-docs.ai and no security.txt among the docs site's static files.", "The repository moved from block/goose to aaif-goose/goose, announced on the goose blog on 7 April 2026." ], "score": 53 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/goose.json", "live": { "slug": "goose", "versions": [ { "registry": "github", "name": "aaif-goose/goose", "version": "v1.53.0", "released": "2026-10-02", "seenAt": "2026-10-08T16:14:43.209663919Z" }, { "registry": "npm", "name": "@aaif/goose-acp", "version": "1.53.0", "seenAt": "2026-10-08T16:14:38.805711869Z" } ], "githubStars": 55074, "npmWeekly": 234, "securityTxt": { "url": "https://goose-docs.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:48.115594094Z" }, "llmsTxt": { "url": "https://goose-docs.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:29.397370303Z" }, "domain": { "domain": "goose-docs.ai", "registered": "2026-03-30", "source": "https://rdap.identitydigital.services/rdap/domain/goose-docs.ai", "checkedAt": "2026-10-04T13:06:07.115541766Z" }, "updatedAt": "2026-10-08T16:14:43.209663919Z" } }, "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "Earendil", "b": "Agentic AI Foundation (originally Block)", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "", "name": "Transports" }, { "a": "None", "b": "None", "name": "Auth" }, { "a": "Free", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "Apache-2.0", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-07", "b": "2026-09-23", "name": "Last release" }, { "a": "no document linked", "b": "no document linked", "name": "Terms last updated" }, { "a": "no document linked", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "113k stars, 5.2M npm/wk", "b": "55k stars", "name": "Popularity" }, { "a": "none", "b": "2.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "goose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories.", "question": "Which is better for AI agents, Pi or goose?" }, { "answer": "Yes. Pi is open source (MIT). goose is open source (Apache-2.0).", "question": "Are Pi and goose open source?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "Developers and pipelines that want a small, scriptable coding agent they can extend in TypeScript and drive over JSONL or RPC, inside their own container.", "slug": "earendil-pi", "watchFor": "No permission system or sandbox. Tool calls run with the user's rights and without an approval prompt" }, { "aheadOn": [ "Agent ergonomics, 82 against 76", "Security \u0026 auth, 77 against 61" ], "also": [ "Agent-ready, a grade of BB or better" ], "goodFor": "People and pipelines that want one agent across many model providers or local models, with recipes for repeatable jobs and a desktop app for non-engineers.", "slug": "goose", "watchFor": "Autonomous mode, which approves every tool call, is the default" } ], "job": { "capability": "agent.harness", "name": "Agent harness" }, "others": [ { "json": "https://www.anchorterminal.com/compare/aider-vs-earendil-pi.json", "title": "Aider vs Pi", "url": "https://www.anchorterminal.com/compare/aider-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-goose.json", "title": "Aider vs goose", "url": "https://www.anchorterminal.com/compare/aider-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-earendil-pi.json", "title": "Amp vs Pi", "url": "https://www.anchorterminal.com/compare/amp-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-goose.json", "title": "Amp vs goose", "url": "https://www.anchorterminal.com/compare/amp-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-earendil-pi.json", "title": "Claude Code vs Pi", "url": "https://www.anchorterminal.com/compare/claude-code-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-goose.json", "title": "Claude Code vs goose", "url": "https://www.anchorterminal.com/compare/claude-code-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-earendil-pi.json", "title": "Cline vs Pi", "url": "https://www.anchorterminal.com/compare/cline-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-goose.json", "title": "Cline vs goose", "url": "https://www.anchorterminal.com/compare/cline-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-earendil-pi.json", "title": "Cursor CLI vs Pi", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-goose.json", "title": "Cursor CLI vs goose", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-earendil-pi.json", "title": "Devin vs Pi", "url": "https://www.anchorterminal.com/compare/devin-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-goose.json", "title": "Devin vs goose", "url": "https://www.anchorterminal.com/compare/devin-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-gemini-cli.json", "title": "Pi vs Gemini CLI", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-gemini-cli" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli.json", "title": "Pi vs GitHub Copilot CLI", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-kiro-cli.json", "title": "Pi vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-openai-codex.json", "title": "Pi vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-opencode.json", "title": "Pi vs OpenCode", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-openhands.json", "title": "Pi vs OpenHands", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent.json", "title": "Pi vs Prime Agent", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-qwen-code.json", "title": "Pi vs Qwen Code", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-goose.json", "title": "Gemini CLI vs goose", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose.json", "title": "GitHub Copilot CLI vs goose", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-kiro-cli.json", "title": "goose vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/goose-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-openai-codex.json", "title": "goose vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/goose-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-opencode.json", "title": "goose vs OpenCode", "url": "https://www.anchorterminal.com/compare/goose-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-openhands.json", "title": "goose vs OpenHands", "url": "https://www.anchorterminal.com/compare/goose-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-prime-agent.json", "title": "goose vs Prime Agent", "url": "https://www.anchorterminal.com/compare/goose-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-qwen-code.json", "title": "goose vs Qwen Code", "url": "https://www.anchorterminal.com/compare/goose-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-paperclip.json", "title": "goose vs Paperclip", "url": "https://www.anchorterminal.com/compare/goose-vs-paperclip" } ], "scores": [ { "by": 2, "earendil-pi": 75, "edge": "goose", "goose": 77, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 3, "earendil-pi": 84, "edge": "earendil-pi", "goose": 81, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 6, "earendil-pi": 76, "edge": "goose", "goose": 82, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 16, "earendil-pi": 61, "edge": "goose", "goose": 77, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 0, "earendil-pi": 60, "edge": "", "goose": 60, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 1, "earendil-pi": 87, "edge": "earendil-pi", "goose": 86, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 1, "earendil-pi": 64, "edge": "earendil-pi", "goose": 63, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "goose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories. Both do agent harness.", "verdicts": { "earendil-pi": "Four default tools, a JSONL event stream, an RPC mode and MCP tools kept out of the model's declarations by default keep context small and scripting simple. Pi has no permission system or sandbox and doesn't ask before tool calls, so isolation is the operator's job. Version 1.0.0 is dated 1 October 2026.", "goose": "Telemetry off until the user opts in, with the collected fields listed. Autonomous mode, which approves every tool call, is the default." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/earendil-pi-vs-goose", "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-goose.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/earendil-pi-vs-goose.md", "slim": "https://www.anchorterminal.com/compare/earendil-pi-vs-goose.min.md" }, "markdown": "goose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories. Both do agent harness.\n\n- Pi: grade B, 68.4/100, rank #180 of 722. Markdown https://www.anchorterminal.com/tools/earendil-pi.md · JSON https://www.anchorterminal.com/api/v1/tools/earendil-pi.json\n- goose: grade BB, 73.9/100, rank #72 of 722. Markdown https://www.anchorterminal.com/tools/goose.md · JSON https://www.anchorterminal.com/api/v1/tools/goose.json\n\n## Which one, for what\n\n### Pi (B)\n\nGood for: Developers and pipelines that want a small, scriptable coding agent they can extend in TypeScript and drive over JSONL or RPC, inside their own container.\n\nWatch for: No permission system or sandbox. Tool calls run with the user's rights and without an approval prompt\n\n### goose (BB)\n\nGood for: People and pipelines that want one agent across many model providers or local models, with recipes for repeatable jobs and a desktop app for non-engineers.\n\nAhead on:\n- Agent ergonomics, 82 against 76\n- Security \u0026 auth, 77 against 61\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: Autonomous mode, which approves every tool call, is the default\n\n\n## Score by category\n\n| Category | Weight | Pi | goose | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 75 | 77 | goose +2 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 81 | Pi +3 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 82 | goose +6 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 77 | goose +16 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 60 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 87 | 86 | Pi +1 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 64 | 63 | Pi +1 |\n| Negative events | ≤15 | -4 | -2 | |\n| **Total** | | **68.4 · B** | **73.9 · BB** | |\n\n## Facts side by side\n\n| Fact | Pi | goose |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Earendil | Agentic AI Foundation (originally Block) |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | |\n| Auth | None | None |\n| Pricing | Free | Free |\n| x402 | no | no |\n| Licence | MIT | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-10-07 | 2026-09-23 |\n| Terms last updated | no document linked | no document linked |\n| Privacy policy last updated | no document linked | no document linked |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | 113k stars, 5.2M npm/wk | 55k stars |\n| Agent reviews | none | 2.5/5 (2) |\n\n## Verdicts\n\n**Pi.** Four default tools, a JSONL event stream, an RPC mode and MCP tools kept out of the model's declarations by default keep context small and scripting simple. Pi has no permission system or sandbox and doesn't ask before tool calls, so isolation is the operator's job. Version 1.0.0 is dated 1 October 2026.\n\n**goose.** Telemetry off until the user opts in, with the collected fields listed. Autonomous mode, which approves every tool call, is the default.\n\n## Before you call either\n\n### Pi\n\n1. Run Pi inside a container or VM for unattended work. It has no sandbox and doesn't ask before running shell commands\n2. Use `pi --mode json` and wait for `agent_settled`. A failed response doesn't set a nonzero exit code in JSON mode\n3. Split the JSONL stream on LF only. Node's `readline` also splits on U+2028 and U+2029, which are valid inside JSON strings\n4. Pass `--no-approve` or `--approve` in scripts to make the project trust decision explicit\n5. Set `PI_TELEMETRY=0` and `PI_SKIP_VERSION_CHECK=1`, or `PI_OFFLINE=1`, to stop the default requests to pi.dev\n\n### goose\n\n1. Set `GOOSE_MODE=smart_approve` or `approve` before a run. The default approves everything\n2. Pass `--max-turns` with a real limit. The default is 1000\n3. Set `SECURITY_PROMPT_ENABLED=true` when the task reads web pages or untrusted repositories\n4. Use `--output-format json` and `--no-session` in CI, and check the exit code\n5. Point remotes and links at aaif-goose/goose and goose-docs.ai. The block/goose paths redirect\n\n## Questions\n\n### Which is better for AI agents, Pi or goose?\n\ngoose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories.\n\n### Are Pi and goose open source?\n\nYes. Pi is open source (MIT). goose is open source (Apache-2.0).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/earendil-pi-vs-goose.json, and with the fewest tokens: https://www.anchorterminal.com/compare/earendil-pi-vs-goose.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"earendil-pi\", \"b\": \"goose\"}`. From a terminal: `anchor compare earendil-pi goose`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/earendil-pi.json and https://www.anchorterminal.com/api/v1/tools/goose.json\n\n## Other comparisons with Pi or goose\n\n- [Aider vs Pi](https://www.anchorterminal.com/compare/aider-vs-earendil-pi.md)\n- [Aider vs goose](https://www.anchorterminal.com/compare/aider-vs-goose.md)\n- [Amp vs Pi](https://www.anchorterminal.com/compare/amp-vs-earendil-pi.md)\n- [Amp vs goose](https://www.anchorterminal.com/compare/amp-vs-goose.md)\n- [Claude Code vs Pi](https://www.anchorterminal.com/compare/claude-code-vs-earendil-pi.md)\n- [Claude Code vs goose](https://www.anchorterminal.com/compare/claude-code-vs-goose.md)\n- [Cline vs Pi](https://www.anchorterminal.com/compare/cline-vs-earendil-pi.md)\n- [Cline vs goose](https://www.anchorterminal.com/compare/cline-vs-goose.md)\n- [Cursor CLI vs Pi](https://www.anchorterminal.com/compare/cursor-cli-vs-earendil-pi.md)\n- [Cursor CLI vs goose](https://www.anchorterminal.com/compare/cursor-cli-vs-goose.md)\n- [Devin vs Pi](https://www.anchorterminal.com/compare/devin-vs-earendil-pi.md)\n- [Devin vs goose](https://www.anchorterminal.com/compare/devin-vs-goose.md)\n- [Pi vs Gemini CLI](https://www.anchorterminal.com/compare/earendil-pi-vs-gemini-cli.md)\n- [Pi vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli.md)\n- [Pi vs Kiro CLI](https://www.anchorterminal.com/compare/earendil-pi-vs-kiro-cli.md)\n- [Pi vs OpenAI Codex](https://www.anchorterminal.com/compare/earendil-pi-vs-openai-codex.md)\n- [Pi vs OpenCode](https://www.anchorterminal.com/compare/earendil-pi-vs-opencode.md)\n- [Pi vs OpenHands](https://www.anchorterminal.com/compare/earendil-pi-vs-openhands.md)\n- [Pi vs Prime Agent](https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent.md)\n- [Pi vs Qwen Code](https://www.anchorterminal.com/compare/earendil-pi-vs-qwen-code.md)\n- [Gemini CLI vs goose](https://www.anchorterminal.com/compare/gemini-cli-vs-goose.md)\n- [GitHub Copilot CLI vs goose](https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose.md)\n- [goose vs Kiro CLI](https://www.anchorterminal.com/compare/goose-vs-kiro-cli.md)\n- [goose vs OpenAI Codex](https://www.anchorterminal.com/compare/goose-vs-openai-codex.md)\n- [goose vs OpenCode](https://www.anchorterminal.com/compare/goose-vs-opencode.md)\n- [goose vs OpenHands](https://www.anchorterminal.com/compare/goose-vs-openhands.md)\n- [goose vs Prime Agent](https://www.anchorterminal.com/compare/goose-vs-prime-agent.md)\n- [goose vs Qwen Code](https://www.anchorterminal.com/compare/goose-vs-qwen-code.md)\n- [goose vs Paperclip](https://www.anchorterminal.com/compare/goose-vs-paperclip.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Pi vs goose", "url": "" } ], "description": "goose scores 73.9 (BB) on agent readiness against Pi's 68.4 (B), and leads in 3 of 7 scored categories. Both do agent harness. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Pi B 68.4", "goose BB 73.9", "scores" ], "h1": "Pi vs goose", "image": "https://www.anchorterminal.com/assets/og/compare-earendil-pi-vs-goose.png", "path": "/compare/earendil-pi-vs-goose", "published": "2026-10-01", "section": "tools", "title": "Pi vs goose for AI agents, B 68.4 vs BB 73.9 | Anchor Terminal", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-goose" }, "tokens": { "markdown": 2100, "slim": 480 }, "version": 1 }