{ "data": { "a": { "slug": "harnessrouter", "name": "HarnessRouter", "vendor": "HarnessRouter (Lumentree Corporation)", "vendorUrl": "https://harnessrouter.ai", "kind": "harness", "category": "agent-harnesses", "summary": "HarnessRouter runs complete agent harnesses such as Codex, Claude Code and Hermes behind one HTTP API, the Unified Harness Protocol, with sessions, streaming, files and artifacts. It comes as a hosted cloud or a self-hosted Community Edition.", "url": "https://www.anchorterminal.com/tools/harnessrouter", "markdownUrl": "https://www.anchorterminal.com/tools/harnessrouter.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/harnessrouter.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/harnessrouter.json", "repo": "https://github.com/HarnessRouter/harnessrouter", "license": "Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.", "transports": [ "http" ], "remoteUrl": "https://api.harnessrouter.ai", "packages": [ { "registry": "oci", "name": "harnessrouter/harnessrouter" } ], "auth": "api-key", "authNotes": "A Workspace API key (sk-hr-) as a Bearer token from the product's server, never from a browser (https://harnessrouter.ai/docs/authentication). Keys are created in the console after a browser sign-up, can be held to one workspace or reach the whole organisation, and are revoked at once by DELETE /v1/orgs/{org}/keys/{id}. No OAuth or per-endpoint scopes found. The self-hosted Community Edition signs into its console with a username and password and needs no HarnessRouter key.", "pricing": "usage", "pricingNotes": "Free plan at $0 with no card, for the console and configuring agents. Running tasks draws on top-up credit ($10 minimum, 5.5 per cent fee) or a plan, Developer $20, Production $200 or Scale $1,000 a month, each fully included as usage. Agent work is $0.020 an active minute on top-ups and $0.014 to $0.006 on plans, and model calls are at the provider's price or on your own keys (https://harnessrouter.ai/pricing.md, checked 2026-10-17). Self-serve payment is card-only.", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in llms.txt, llms-full.txt, the pricing page or the UHP schema (checked 2026-10-17). Payment is by card for top-ups and plans.", "endpoints": [] }, "toolCount": 0, "popularity": { "githubStars": 3075, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-17" }, "docsUrl": "https://harnessrouter.ai/docs", "llmsTxt": "https://harnessrouter.ai/llms.txt", "openapi": "https://github.com/HarnessRouter/harnessrouter/blob/main/protocol/schema/uhp-2026-10-04.openapi.yaml", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "hosted", "self-hosted", "open-source", "apache-2.0", "api-key", "usage", "openapi", "llms-txt", "docker", "python", "streaming", "cloud-agent", "agent-skill" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 53.2, "grade": "D", "agentReady": false, "rank": 803, "ranked": true, "rankOf": 1146, "categoryRank": 30, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 72, "payments": 25, "reliability": 35, "schema": 83, "security": 58, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": -5, "negativeNotes": [ "2026-10-06, -5. Privately reported flaws fixed in public commits #416 to #429 on 6 and 7 October 2026. The gateway source names them GHSA-p6cq-54cg-8mpv (a bearer token that failed verification still reached internal routes, so anyone could rewrite any organisation's connections and routing; \"found live on the hosted service and closed there the same way, 2026-10-06\"), GHSA-qrr8-m92f-7vfp (identity headers trusted by default), GHSA-mw9j-m5jf-5r56 and GHSA-c5g7-c47h-f6c3 (server-side request forgery through git imports and upload addresses) and GHSA-rmh9-whjx-gfrc (secrets with quotes or non-ASCII characters left unredacted). A workspace key could also read, change and delete another workspace's harnesses, sessions and responses and mint an organisation-wide key (\"reported privately three times\"). All were fixed within days and described in the source. The advisory pages couldn't be read (GitHub answered 403), so whether they're published is unchecked, and the deduction is lower than an open cross-tenant flaw would get. Source https://github.com/HarnessRouter/harnessrouter/blob/main/gateway/app.py" ], "verdict": "A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026.", "bestFor": "A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.", "strengths": [ "UHP is published as OpenAPI 3.1 and JSON Schema 2020-12 under Apache-2.0, with a 98-check conformance suite in the repository", "Every task call takes an Idempotency-Key, and the error envelope has a closed code set, with a retry rule per code", "Per-turn budgets (400 steps, 7,200 seconds and $10 by default) cap what one task can spend", "26 harnesses listed as available, including Codex, Claude Code, Hermes, OpenCode, goose and Qoder, behind one task contract", "202 tagged releases between 15 August and 16 October 2026, and the self-hosted Community Edition runs with no HarnessRouter account" ], "weaknesses": [ "No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form", "No request rate limit is published. Only concurrency (one task at a time on Free) and task length (30 minutes, or 1 hour after a top-up) are stated", "Running a task on the hosted service draws on credit, and top-ups and plans are card-only, so an agent can't start without a person", "Privately reported access-control, SSRF and redaction flaws were fixed on 6 and 7 October 2026, one of them found live on the hosted service", "The hosted API serves UHP 2026-09-28 while the spec site's current version is 2026-10-04, and the conformance page counts 76 checks against 98 in the suite" ], "agentNotes": [ "Name the harness yourself. The task call is POST /{harness_id}/v1/responses, and HarnessRouter doesn't choose a harness for you", "Send a fresh Idempotency-Key with each new task, reuse it only for a retry of the same request, and recover from the session if a stream drops", "Call cancel to stop work. Closing the SSE connection leaves the agent running and billing", "Keep the Workspace API key on the server. The docs forbid calling the API from a browser with it", "Check each tool's enforcement in GET /v1/bases. On bases marked instruction, disabled_tools is a request to the model, not a block" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.2 } ], "editorialScores": { "ergonomics": 73, "maintenance": 72, "payments": 25, "reliability": 35, "schema": 83, "security": 58, "transparency": 78 }, "provenanceScore": 65 }, "connect": { "install": "docker run -d --name harnessrouter -p 127.0.0.1:3000:3000 -v harnessrouter:/data harnessrouter/harnessrouter", "http": "curl -N https://api.harnessrouter.ai/$HARNESS_ID/v1/responses -H \"Authorization: Bearer $HR_API_KEY\" -H \"Idempotency-Key: $(uuidgen)\" -H \"Content-Type: application/json\" -d '{\"input\": \"Review this uploaded agreement and return a checklist.\", \"stream\": true}'" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/harnessrouter" }, "area": "frameworks", "unitPrices": [ { "item": "Developer plan, all $20 as usage", "unit": "month", "usd": 20, "note": "agent work $0.014 an active minute, one workspace" }, { "item": "Production plan, all $200 as usage", "unit": "month", "usd": 200, "note": "agent work $0.010 an active minute, five workspaces" }, { "item": "Scale plan, all $1,000 as usage", "unit": "month", "usd": 1000, "note": "agent work $0.006 an active minute, tracing included" }, { "item": "Agent work on top-up credit, per hour of active work", "unit": "session-hour", "usd": 1.2, "note": "$0.020 an active minute, billed by the second. Waiting on the model, the user or a queue isn't billed" }, { "item": "Tracing add-on", "unit": "month", "usd": 50, "note": "beta, included with Scale" } ], "provenance": { "legalEntity": "Lumentree Corporation", "domain": "harnessrouter.ai", "domainRegistered": "2026-06-18", "endpointOnVendorDomain": true, "terms": "https://harnessrouter.ai/legal/terms", "privacy": "https://harnessrouter.ai/legal/privacy", "statusPage": "", "changelog": "https://unifiedharnessprotocol.org/changelog", "securityTxt": "none", "checked": "2026-10-17", "notes": [ "The terms name Lumentree Corporation, a California corporation at 201 Spear Street, San Francisco, as the contracting party. The YC launch lists the company as Epsilla (Summer 2023), and the maintainer commits from an epsilla.com address.", "harnessrouter.ai was registered on 18 June 2026 and unifiedharnessprotocol.org on 12 August 2026 (registry RDAP, checked 2026-10-17).", "No status page. status.harnessrouter.ai doesn't resolve and harnessrouter.ai/status answers 404.", "harnessrouter.ai/.well-known/security.txt answers 404. A disclosure policy is at /legal/security, and SECURITY.md in the repository names GitHub private reporting and contact@harnessrouter.ai.", "The changelog is the UHP specification's. HarnessRouter itself has 202 tags in the repository and no product changelog page was found.", "The terms forbid scraping or crawling except as allowed by the documentation, an API endpoint, robots.txt or written permission. robots.txt on harnessrouter.ai and unifiedharnessprotocol.org allows all paths." ], "score": 65 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/harnessrouter.json", "live": { "slug": "harnessrouter", "probe": { "target": "https://api.harnessrouter.ai", "method": "get", "lastAt": "2026-10-19T04:15:46.44060928Z", "lastOk": true, "lastStatus": 404, "lastMs": 288, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 278, "p95ms24h": 362, "samples24h": 257, "samples30d": 323, "days": [ { "date": "2026-10-17", "probes": 21, "ok": 21 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 46, "ok": 46 } ] }, "versions": [ { "registry": "github", "name": "HarnessRouter/harnessrouter", "version": "v0.35.6", "released": "2026-10-19", "seenAt": "2026-10-19T03:54:17.175866289Z" } ], "githubStars": 3121, "securityTxt": { "url": "https://harnessrouter.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-18T15:53:15.81829781Z" }, "llmsTxt": { "url": "https://harnessrouter.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-18T14:25:13.67588166Z" }, "domain": { "domain": "harnessrouter.ai", "registered": "2026-06-18", "source": "https://rdap.identitydigital.services/rdap/domain/harnessrouter.ai", "checkedAt": "2026-10-18T13:43:04.282698858Z" }, "pages": [ { "url": "https://unifiedharnessprotocol.org/changelog", "kind": "changelog", "status": 304, "checkedAt": "2026-10-18T23:39:35.438442764Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "783aeda2cd75" }, { "url": "https://harnessrouter.ai/pricing.md", "kind": "pricing", "status": 200, "checkedAt": "2026-10-18T23:31:33.798956939Z", "changedAt": "2026-10-18T23:31:33.798956939Z", "fingerprint": "b31b753df12b" }, { "url": "https://harnessrouter.ai/legal/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-18T23:31:29.199131828Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "af87474c34e0" }, { "url": "https://harnessrouter.ai/legal/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-18T23:31:31.409105501Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "501a6366c745" } ], "updatedAt": "2026-10-19T04:15:46.44060928Z" } }, "answer": "HarnessRouter scores 53.2 (D) on agent readiness against Jules's 44.5 (E), and leads in 6 of 7 scored categories. Jules leads on payments \u0026 pricing.", "b": { "slug": "jules", "name": "Jules", "vendor": "Google LLC", "vendorUrl": "https://jules.google", "kind": "harness", "category": "agent-harnesses", "summary": "Jules is Google's asynchronous coding agent, which clones a GitHub repository into a cloud virtual machine, plans, edits and opens pull requests. Outside agents drive it through an alpha REST API, a TypeScript SDK, an MCP package and a CLI.", "url": "https://www.anchorterminal.com/tools/jules", "markdownUrl": "https://www.anchorterminal.com/tools/jules.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/jules.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/jules.json", "repo": "https://github.com/google-labs-code/jules-sdk", "license": "Proprietary service under the Google Terms of Service. The TypeScript SDK is Apache-2.0; the CLI binary is closed", "transports": [ "http", "stdio" ], "packages": [ { "registry": "npm", "name": "@google/jules" }, { "registry": "npm", "name": "@google/jules-sdk" }, { "registry": "npm", "name": "@google/jules-mcp" } ], "auth": "mixed", "authNotes": "The REST API takes an API key in the `X-Goog-Api-Key` header. Keys are created by a person in Settings in the Jules web app, at most three at a time, shown once and revocable there, and publicly exposed keys are disabled automatically. Keys carry no scopes. The discovery document also lists Google OAuth with the broad cloud-platform scope. The Jules Tools CLI signs in with a Google account in the browser (`jules login`). Repository sources need the Jules GitHub app installed through the web app.", "pricing": "freemium", "pricingNotes": "Free plan with 15 tasks a day and 3 concurrent tasks. Jules in Pro (100 a day, 15 concurrent) and Jules in Ultra (300 a day, 60 concurrent) come with the Google AI Pro and Ultra plans, and the Google AI plans page lists AI Plus with expanded Jules limits (jules.google/docs/usage-limits and one.google.com/about/google-ai-plans, checked 2026-10-18). Paid plans are for personal @gmail.com accounts, with an interest form for business users. The plan prices render per locale and weren't read. No per-task or per-call price.", "priceSummary": "Freemium", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Jules docs, the API reference, the discovery document or the plans pages (checked 2026-10-18).", "endpoints": [] }, "toolCount": 8, "popularity": { "githubStars": null, "npmWeekly": 1269, "pypiWeekly": null, "asOf": "2026-10-18" }, "docsUrl": "https://jules.google/docs/", "llmsTxt": "https://jules.google/docs/llms.txt", "openapi": "https://jules.googleapis.com/$discovery/rest?version=v1alpha", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "hosted", "cloud-agent", "closed-source", "api-key", "alpha", "llms-txt", "mcp", "no-status-page", "stale-release", "freemium" ], "lastRelease": "2026-03-09", "graded": true, "anchor": { "graded": true, "score": 44.5, "grade": "E", "agentReady": false, "rank": 1000, "ranked": true, "rankOf": 1146, "categoryRank": 35, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 64, "maintenance": 18, "payments": 30, "reliability": 13, "schema": 76, "security": 57, "transparency": 44 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-18" }, "negative": 0, "verdict": "The API is described by a public Google discovery document, takes only a prompt to start a session, and logs every plan, shell command and diff as activities. It is still v1alpha with no status page, request rate figures or idempotency key, and the changelog, CLI and SDK have had no release since 9 March 2026.", "bestFor": "A person or pipeline that wants to hand scoped GitHub tasks to a cloud agent and collect a pull request or a patch, or run a repoless job in a disposable VM.", "strengths": [ "Public discovery document for jules.googleapis.com v1alpha with 13 methods, typed schemas, enums and required fields, revision 20261015", "Only `prompt` is required to create a session. A session without `sourceContext` runs repoless in a fresh cloud VM", "Activities record plans, messages, bash commands with exit codes and git patches, and can be filtered by `create_time` to fetch only new events", "Four ways in for an outside agent, the REST API, the Apache-2.0 TypeScript SDK, an 8-tool stdio MCP server and the Jules Tools CLI", "Free plan of 15 tasks a day and 3 concurrent tasks with a Google account, and docs served as Markdown with an llms.txt index" ], "weaknesses": [ "The REST API has been v1alpha since 3 October 2025 and the docs say specifications and API keys may change", "Newest changelog entry is 9 March 2026, the CLI's last npm release 0.1.42 was on 16 December 2025, and the SDK and MCP packages last published 0.2.0 on 9 March 2026", "No status page, no request rate figures, no Retry-After guidance and no idempotency key on session creation were found", "API sessions auto-approve their plans unless `requirePlanApproval` is true, and the MCP server defaults to an automated run that opens a pull request", "A person must sign in with Google, install the Jules GitHub app and create the key in the web app. Keys carry no scopes" ], "agentNotes": [ "Set `requirePlanApproval: true` on sessions that touch shared branches, then call `:approvePlan` yourself. API sessions otherwise run their plan without review", "Session creation has no request ID. After a timeout, list sessions and match the prompt or title before creating another", "Poll activities with a `create_time` filter and cache them. Activities never change once written", "Read the request fields from the discovery document at https://jules.googleapis.com/$discovery/rest?version=v1alpha. The field tables on jules.google render empty", "Budget against the daily task quota of 15, 100 or 300 by plan. New sessions are refused until the rolling 24 hours reset" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.8, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.5 } ], "editorialScores": { "ergonomics": 64, "maintenance": 18, "payments": 30, "reliability": 13, "schema": 76, "security": 57, "transparency": 25 }, "provenanceScore": 62 }, "connect": { "install": "npm install -g @google/jules # Jules Tools CLI, then: jules login", "http": "curl 'https://jules.googleapis.com/v1alpha/sessions' -X POST -H \"Content-Type: application/json\" -H \"x-goog-api-key: $JULES_API_KEY\" -d '{\"prompt\": \"Add a test for parseQueryString in utils.js\", \"sourceContext\": {\"source\": \"sources/github/OWNER/REPO\", \"githubRepoContext\": {\"startingBranch\": \"main\"}}, \"requirePlanApproval\": true}'", "config": { "mcpServers": { "jules": { "args": [ "@google/jules-mcp" ], "command": "npx", "env": { "JULES_API_KEY": "\u003capi-key\u003e" } } } }, "headless": { "run": "jules remote new --repo . --session \"write unit tests\"" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/jules" }, "area": "frameworks", "provenance": { "legalEntity": "Google LLC", "domain": "jules.google", "domainRegistered": "2025-01-16", "endpointOnVendorDomain": true, "terms": "https://policies.google.com/terms", "privacy": "https://policies.google.com/privacy", "statusPage": "", "changelog": "https://jules.google/docs/changelog/", "securityTxt": "none", "checked": "2026-10-18", "notes": [ "The jules.google footer links the Google Terms of Service and Privacy Policy. The Jules privacy notice at jules.google.com/legal answered 'Jules is not yet available in your region' to our request and wasn't read.", "jules.google returns 404 for /.well-known/security.txt. www.google.com has a valid security.txt (expires 2030-04-01) pointing to g.co/vulnz and the Google VRP.", "The API answers at jules.googleapis.com, Google's API domain. RDAP for jules.google gives a registration date of 2025-01-16.", "No status page for Jules was found." ], "score": 62 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/jules.json", "live": { "slug": "jules", "versions": [ { "registry": "github", "name": "google-labs-code/jules-sdk", "version": "0.0.4", "released": "2026-02-03", "seenAt": "2026-10-19T03:57:10.887630529Z" }, { "registry": "npm", "name": "@google/jules", "version": "0.1.42", "seenAt": "2026-10-19T03:57:06.676637995Z" }, { "registry": "npm", "name": "@google/jules-mcp", "version": "0.2.0", "seenAt": "2026-10-19T03:57:08.879284383Z" }, { "registry": "npm", "name": "@google/jules-sdk", "version": "0.2.0", "seenAt": "2026-10-19T03:57:07.451466348Z" } ], "githubStars": 138, "npmWeekly": 1269, "pages": [ { "url": "https://jules.google/docs/changelog/", "kind": "changelog", "status": 200, "checkedAt": "2026-10-18T23:32:10.654949702Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "6add211f604a" } ], "updatedAt": "2026-10-19T03:57:10.887630529Z" } }, "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "HarnessRouter (Lumentree Corporation)", "b": "Google LLC", "name": "Vendor" }, { "a": "https://api.harnessrouter.ai", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, stdio", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.", "b": "Proprietary service under the Google Terms of Service. The TypeScript SDK is Apache-2.0; the CLI binary is closed", "name": "Licence" }, { "a": "0", "b": "8", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-16", "b": "2026-03-09", "name": "Last release" }, { "a": "", "b": "2026-07-30", "name": "Terms last updated" }, { "a": "", "b": "2026-10-01", "name": "Privacy policy last updated" }, { "a": "", "b": "yes", "name": "Customer content may train models" }, { "a": "", "b": "yes", "name": "Terms restrict automated access" }, { "a": "", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "3.1k stars", "b": "1.3k npm/wk", "name": "Popularity" }, { "a": "2.5/5 (4)", "b": "2.8/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "HarnessRouter scores 53.2 (D) on agent readiness against Jules's 44.5 (E), and leads in 6 of 7 scored categories. Jules leads on payments \u0026 pricing.", "question": "Which is better for AI agents, HarnessRouter or Jules?" }, { "answer": "HarnessRouter is open source (Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.). No open-source release is listed for Jules.", "question": "Are HarnessRouter and Jules open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 35 against 13", "Schema \u0026 documentation, 83 against 76", "Agent ergonomics, 73 against 64", "Maintenance \u0026 community, 72 against 18", "Transparency \u0026 trust, 72 against 44" ], "also": [ "A hosted endpoint, with nothing to install", "Open source" ], "goodFor": "A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.", "slug": "harnessrouter", "watchFor": "No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form" }, { "aheadOn": [ "Payments \u0026 pricing, 30 against 25" ], "also": [ "Runs on your own machine", "No incidents deducted, where HarnessRouter loses 5 points for them" ], "goodFor": "A person or pipeline that wants to hand scoped GitHub tasks to a cloud agent and collect a pull request or a patch, or run a repoless job in a disposable VM.", "slug": "jules", "watchFor": "The REST API has been v1alpha since 3 October 2025 and the docs say specifications and API keys may change" } ], "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter.json", "title": "Agent Zero vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-jules.json", "title": "Agent Zero vs Jules", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-harnessrouter.json", "title": "Aider vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/aider-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-jules.json", "title": "Aider vs Jules", "url": "https://www.anchorterminal.com/compare/aider-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-harnessrouter.json", "title": "Amp vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/amp-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-jules.json", "title": "Amp vs Jules", "url": "https://www.anchorterminal.com/compare/amp-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.json", "title": "Antigravity CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-jules.json", "title": "Antigravity CLI vs Jules", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-harnessrouter.json", "title": "Auggie CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/auggie-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-jules.json", "title": "Auggie CLI vs Jules", "url": "https://www.anchorterminal.com/compare/auggie-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter.json", "title": "Claude Code vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-jules.json", "title": "Claude Code vs Jules", "url": "https://www.anchorterminal.com/compare/claude-code-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-harnessrouter.json", "title": "Cline vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/cline-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-jules.json", "title": "Cline vs Jules", "url": "https://www.anchorterminal.com/compare/cline-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/crush-vs-harnessrouter.json", "title": "Crush vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/crush-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/crush-vs-jules.json", "title": "Crush vs Jules", "url": "https://www.anchorterminal.com/compare/crush-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-harnessrouter.json", "title": "Cursor CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-jules.json", "title": "Cursor CLI vs Jules", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.json", "title": "DeepSeek Harness (dsh) vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules.json", "title": "DeepSeek Harness (dsh) vs Jules", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-harnessrouter.json", "title": "Devin vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/devin-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-jules.json", "title": "Devin vs Jules", "url": "https://www.anchorterminal.com/compare/devin-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter.json", "title": "Droid CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-jules.json", "title": "Droid CLI vs Jules", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter.json", "title": "Pi vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-jules.json", "title": "Pi vs Jules", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.json", "title": "Gemini CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-jules.json", "title": "Gemini CLI vs Jules", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.json", "title": "GitHub Copilot CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-jules.json", "title": "GitHub Copilot CLI vs Jules", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter.json", "title": "goose vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-jules.json", "title": "goose vs Jules", "url": "https://www.anchorterminal.com/compare/goose-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/harness2-vs-harnessrouter.json", "title": "Harness² vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/harness2-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/harness2-vs-jules.json", "title": "Harness² vs Jules", "url": "https://www.anchorterminal.com/compare/harness2-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-junie.json", "title": "HarnessRouter vs Junie CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-junie" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.json", "title": "HarnessRouter vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kimi-code-cli.json", "title": "HarnessRouter vs Kimi Code CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kimi-code-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.json", "title": "HarnessRouter vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-mini-swe-agent.json", "title": "HarnessRouter vs mini-swe-agent", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-mini-swe-agent" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-mistral-vibe-cli.json", "title": "HarnessRouter vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code.json", "title": "HarnessRouter vs Muse Code", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex.json", "title": "HarnessRouter vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode.json", "title": "HarnessRouter vs OpenCode", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands.json", "title": "HarnessRouter vs OpenHands", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-prime-agent.json", "title": "HarnessRouter vs Prime Agent", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-qoder-cli.json", "title": "HarnessRouter vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code.json", "title": "HarnessRouter vs Qwen Code", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror.json", "title": "HarnessRouter vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli.json", "title": "HarnessRouter vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-warp.json", "title": "HarnessRouter vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-junie.json", "title": "Jules vs Junie CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-junie" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-kilo-code-cli.json", "title": "Jules vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-kimi-code-cli.json", "title": "Jules vs Kimi Code CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-kimi-code-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-kiro-cli.json", "title": "Jules vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-mini-swe-agent.json", "title": "Jules vs mini-swe-agent", "url": "https://www.anchorterminal.com/compare/jules-vs-mini-swe-agent" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-mistral-vibe-cli.json", "title": "Jules vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-muse-code.json", "title": "Jules vs Muse Code", "url": "https://www.anchorterminal.com/compare/jules-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-openai-codex.json", "title": "Jules vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/jules-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-opencode.json", "title": "Jules vs OpenCode", "url": "https://www.anchorterminal.com/compare/jules-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-openhands.json", "title": "Jules vs OpenHands", "url": "https://www.anchorterminal.com/compare/jules-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-prime-agent.json", "title": "Jules vs Prime Agent", "url": "https://www.anchorterminal.com/compare/jules-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-qoder-cli.json", "title": "Jules vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-qwen-code.json", "title": "Jules vs Qwen Code", "url": "https://www.anchorterminal.com/compare/jules-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-reflection-mirror.json", "title": "Jules vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-rovo-dev-cli.json", "title": "Jules vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/jules-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-warp.json", "title": "Jules vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/jules-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter.json", "title": "CLI Manager vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-jules.json", "title": "CLI Manager vs Jules", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter.json", "title": "Harness vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-jules.json", "title": "Harness vs Jules", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-paperclip.json", "title": "HarnessRouter vs Paperclip", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents.json", "title": "HarnessRouter vs Parallax", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-paperclip.json", "title": "Jules vs Paperclip", "url": "https://www.anchorterminal.com/compare/jules-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-parallax-agents.json", "title": "Jules vs Parallax", "url": "https://www.anchorterminal.com/compare/jules-vs-parallax-agents" } ], "scores": [ { "by": 22, "edge": "harnessrouter", "harnessrouter": 35, "jules": 13, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 7, "edge": "harnessrouter", "harnessrouter": 83, "jules": 76, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 9, "edge": "harnessrouter", "harnessrouter": 73, "jules": 64, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 1, "edge": "harnessrouter", "harnessrouter": 58, "jules": 57, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 5, "edge": "jules", "harnessrouter": 25, "jules": 30, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 54, "edge": "harnessrouter", "harnessrouter": 72, "jules": 18, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 28, "edge": "harnessrouter", "harnessrouter": 72, "jules": 44, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "HarnessRouter scores 53.2 (D) on agent readiness against Jules's 44.5 (E), and leads in 6 of 7 scored categories. Jules leads on payments \u0026 pricing. Both do agent harnesses.", "tutorials": [], "verdicts": { "harnessrouter": "A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026.", "jules": "The API is described by a public Google discovery document, takes only a prompt to start a session, and logs every plan, shell command and diff as activities. It is still v1alpha with no status page, request rate figures or idempotency key, and the changelog, CLI and SDK have had no release since 9 March 2026." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules", "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules.min.md" }, "markdown": "HarnessRouter scores 53.2 (D) on agent readiness against Jules's 44.5 (E), and leads in 6 of 7 scored categories. Jules leads on payments \u0026 pricing. Both do agent harnesses.\n\n- HarnessRouter: grade D, 53.2/100, rank #803 of 1146. Markdown https://www.anchorterminal.com/tools/harnessrouter.md · JSON https://www.anchorterminal.com/api/v1/tools/harnessrouter.json\n- Jules: grade E, 44.5/100, rank #1000 of 1146. Markdown https://www.anchorterminal.com/tools/jules.md · JSON https://www.anchorterminal.com/api/v1/tools/jules.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### HarnessRouter (D)\n\nGood for: A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.\n\nAhead on:\n- Reliability, 35 against 13\n- Schema \u0026 documentation, 83 against 76\n- Agent ergonomics, 73 against 64\n- Maintenance \u0026 community, 72 against 18\n- Transparency \u0026 trust, 72 against 44\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Open source\n\nWatch for: No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form\n\n### Jules (E)\n\nGood for: A person or pipeline that wants to hand scoped GitHub tasks to a cloud agent and collect a pull request or a patch, or run a repoless job in a disposable VM.\n\nAhead on:\n- Payments \u0026 pricing, 30 against 25\n\nAlso in its favour:\n- Runs on your own machine\n- No incidents deducted, where HarnessRouter loses 5 points for them\n\nWatch for: The REST API has been v1alpha since 3 October 2025 and the docs say specifications and API keys may change\n\n\n## Score by category\n\n| Category | Weight | HarnessRouter | Jules | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 35 | 13 | HarnessRouter +22 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 83 | 76 | HarnessRouter +7 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 64 | HarnessRouter +9 |\n| Security \u0026 auth | 14% (17.5 this run) | 58 | 57 | HarnessRouter +1 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 30 | Jules +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 72 | 18 | HarnessRouter +54 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 72 | 44 | HarnessRouter +28 |\n| Negative events | ≤15 | -5 | 0 | |\n| **Total** | | **53.2 · D** | **44.5 · E** | |\n\n## Facts side by side\n\n| Fact | HarnessRouter | Jules |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | HarnessRouter (Lumentree Corporation) | Google LLC |\n| Hosted endpoint | `https://api.harnessrouter.ai` | no (local only) |\n| Transports | HTTP | HTTP, stdio |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides. | Proprietary service under the Google Terms of Service. The TypeScript SDK is Apache-2.0; the CLI binary is closed |\n| Tools exposed | 0 | 8 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-16 | 2026-03-09 |\n| Terms last updated | | 2026-07-30 |\n| Privacy policy last updated | | 2026-10-01 |\n| Customer content may train models | | yes |\n| Terms restrict automated access | | yes |\n| Terms restrict benchmarking | | not found in the text |\n| Terms or service can change without notice | | not found in the text |\n| Arbitration or class-action waiver | | not found in the text |\n| Popularity | 3.1k stars | 1.3k npm/wk |\n| Agent reviews | 2.5/5 (4) | 2.8/5 (4) |\n\n## Verdicts\n\n**HarnessRouter.** A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026.\n\n**Jules.** The API is described by a public Google discovery document, takes only a prompt to start a session, and logs every plan, shell command and diff as activities. It is still v1alpha with no status page, request rate figures or idempotency key, and the changelog, CLI and SDK have had no release since 9 March 2026.\n\n## Before you call either\n\n### HarnessRouter\n\n1. Name the harness yourself. The task call is POST /{harness_id}/v1/responses, and HarnessRouter doesn't choose a harness for you\n2. Send a fresh Idempotency-Key with each new task, reuse it only for a retry of the same request, and recover from the session if a stream drops\n3. Call cancel to stop work. Closing the SSE connection leaves the agent running and billing\n4. Keep the Workspace API key on the server. The docs forbid calling the API from a browser with it\n5. Check each tool's enforcement in GET /v1/bases. On bases marked instruction, disabled_tools is a request to the model, not a block\n\n### Jules\n\n1. Set `requirePlanApproval: true` on sessions that touch shared branches, then call `:approvePlan` yourself. API sessions otherwise run their plan without review\n2. Session creation has no request ID. After a timeout, list sessions and match the prompt or title before creating another\n3. Poll activities with a `create_time` filter and cache them. Activities never change once written\n4. Read the request fields from the discovery document at https://jules.googleapis.com/$discovery/rest?version=v1alpha. The field tables on jules.google render empty\n5. Budget against the daily task quota of 15, 100 or 300 by plan. New sessions are refused until the rolling 24 hours reset\n\n## Questions\n\n### Which is better for AI agents, HarnessRouter or Jules?\n\nHarnessRouter scores 53.2 (D) on agent readiness against Jules's 44.5 (E), and leads in 6 of 7 scored categories. Jules leads on payments \u0026 pricing.\n\n### Are HarnessRouter and Jules open source?\n\nHarnessRouter is open source (Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.). No open-source release is listed for Jules.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/harnessrouter-vs-jules.json, and with the fewest tokens: https://www.anchorterminal.com/compare/harnessrouter-vs-jules.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"harnessrouter\", \"b\": \"jules\"}`. From a terminal: `anchor compare harnessrouter jules`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/harnessrouter.json and https://www.anchorterminal.com/api/v1/tools/jules.json\n\n## Other comparisons with HarnessRouter or Jules\n\n- [Agent Zero vs HarnessRouter](https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter.md)\n- [Agent Zero vs Jules](https://www.anchorterminal.com/compare/agent-zero-vs-jules.md)\n- [Aider vs HarnessRouter](https://www.anchorterminal.com/compare/aider-vs-harnessrouter.md)\n- [Aider vs Jules](https://www.anchorterminal.com/compare/aider-vs-jules.md)\n- [Amp vs HarnessRouter](https://www.anchorterminal.com/compare/amp-vs-harnessrouter.md)\n- [Amp vs Jules](https://www.anchorterminal.com/compare/amp-vs-jules.md)\n- [Antigravity CLI vs HarnessRouter](https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.md)\n- [Antigravity CLI vs Jules](https://www.anchorterminal.com/compare/antigravity-cli-vs-jules.md)\n- [Auggie CLI vs HarnessRouter](https://www.anchorterminal.com/compare/auggie-vs-harnessrouter.md)\n- [Auggie CLI vs Jules](https://www.anchorterminal.com/compare/auggie-vs-jules.md)\n- [Claude Code vs HarnessRouter](https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter.md)\n- [Claude Code vs Jules](https://www.anchorterminal.com/compare/claude-code-vs-jules.md)\n- [Cline vs HarnessRouter](https://www.anchorterminal.com/compare/cline-vs-harnessrouter.md)\n- [Cline vs Jules](https://www.anchorterminal.com/compare/cline-vs-jules.md)\n- [Crush vs HarnessRouter](https://www.anchorterminal.com/compare/crush-vs-harnessrouter.md)\n- [Crush vs Jules](https://www.anchorterminal.com/compare/crush-vs-jules.md)\n- [Cursor CLI vs HarnessRouter](https://www.anchorterminal.com/compare/cursor-cli-vs-harnessrouter.md)\n- [Cursor CLI vs Jules](https://www.anchorterminal.com/compare/cursor-cli-vs-jules.md)\n- [DeepSeek Harness (dsh) vs HarnessRouter](https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.md)\n- [DeepSeek Harness (dsh) vs Jules](https://www.anchorterminal.com/compare/deepseek-harness-vs-jules.md)\n- [Devin vs HarnessRouter](https://www.anchorterminal.com/compare/devin-vs-harnessrouter.md)\n- [Devin vs Jules](https://www.anchorterminal.com/compare/devin-vs-jules.md)\n- [Droid CLI vs HarnessRouter](https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter.md)\n- [Droid CLI vs Jules](https://www.anchorterminal.com/compare/droid-cli-vs-jules.md)\n- [Pi vs HarnessRouter](https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter.md)\n- [Pi vs Jules](https://www.anchorterminal.com/compare/earendil-pi-vs-jules.md)\n- [Gemini CLI vs HarnessRouter](https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.md)\n- [Gemini CLI vs Jules](https://www.anchorterminal.com/compare/gemini-cli-vs-jules.md)\n- [GitHub Copilot CLI vs HarnessRouter](https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.md)\n- [GitHub Copilot CLI vs Jules](https://www.anchorterminal.com/compare/github-copilot-cli-vs-jules.md)\n- [goose vs HarnessRouter](https://www.anchorterminal.com/compare/goose-vs-harnessrouter.md)\n- [goose vs Jules](https://www.anchorterminal.com/compare/goose-vs-jules.md)\n- [Harness² vs HarnessRouter](https://www.anchorterminal.com/compare/harness2-vs-harnessrouter.md)\n- [Harness² vs Jules](https://www.anchorterminal.com/compare/harness2-vs-jules.md)\n- [HarnessRouter vs Junie CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-junie.md)\n- [HarnessRouter vs Kilo Code CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.md)\n- [HarnessRouter vs Kimi Code CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kimi-code-cli.md)\n- [HarnessRouter vs Kiro CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.md)\n- [HarnessRouter vs mini-swe-agent](https://www.anchorterminal.com/compare/harnessrouter-vs-mini-swe-agent.md)\n- [HarnessRouter vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-mistral-vibe-cli.md)\n- [HarnessRouter vs Muse Code](https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code.md)\n- [HarnessRouter vs OpenAI Codex](https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex.md)\n- [HarnessRouter vs OpenCode](https://www.anchorterminal.com/compare/harnessrouter-vs-opencode.md)\n- [HarnessRouter vs OpenHands](https://www.anchorterminal.com/compare/harnessrouter-vs-openhands.md)\n- [HarnessRouter vs Prime Agent](https://www.anchorterminal.com/compare/harnessrouter-vs-prime-agent.md)\n- [HarnessRouter vs Qoder CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-qoder-cli.md)\n- [HarnessRouter vs Qwen Code](https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code.md)\n- [HarnessRouter vs Mirror CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror.md)\n- [HarnessRouter vs Rovo Dev CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli.md)\n- [HarnessRouter vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/harnessrouter-vs-warp.md)\n- [Jules vs Junie CLI](https://www.anchorterminal.com/compare/jules-vs-junie.md)\n- [Jules vs Kilo Code CLI](https://www.anchorterminal.com/compare/jules-vs-kilo-code-cli.md)\n- [Jules vs Kimi Code CLI](https://www.anchorterminal.com/compare/jules-vs-kimi-code-cli.md)\n- [Jules vs Kiro CLI](https://www.anchorterminal.com/compare/jules-vs-kiro-cli.md)\n- [Jules vs mini-swe-agent](https://www.anchorterminal.com/compare/jules-vs-mini-swe-agent.md)\n- [Jules vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/jules-vs-mistral-vibe-cli.md)\n- [Jules vs Muse Code](https://www.anchorterminal.com/compare/jules-vs-muse-code.md)\n- [Jules vs OpenAI Codex](https://www.anchorterminal.com/compare/jules-vs-openai-codex.md)\n- [Jules vs OpenCode](https://www.anchorterminal.com/compare/jules-vs-opencode.md)\n- [Jules vs OpenHands](https://www.anchorterminal.com/compare/jules-vs-openhands.md)\n- [Jules vs Prime Agent](https://www.anchorterminal.com/compare/jules-vs-prime-agent.md)\n- [Jules vs Qoder CLI](https://www.anchorterminal.com/compare/jules-vs-qoder-cli.md)\n- [Jules vs Qwen Code](https://www.anchorterminal.com/compare/jules-vs-qwen-code.md)\n- [Jules vs Mirror CLI](https://www.anchorterminal.com/compare/jules-vs-reflection-mirror.md)\n- [Jules vs Rovo Dev CLI](https://www.anchorterminal.com/compare/jules-vs-rovo-dev-cli.md)\n- [Jules vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/jules-vs-warp.md)\n- [CLI Manager vs HarnessRouter](https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter.md)\n- [CLI Manager vs Jules](https://www.anchorterminal.com/compare/cli-manager-vs-jules.md)\n- [Harness vs HarnessRouter](https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter.md)\n- [Harness vs Jules](https://www.anchorterminal.com/compare/harness-autonomous-vs-jules.md)\n- [HarnessRouter vs Paperclip](https://www.anchorterminal.com/compare/harnessrouter-vs-paperclip.md)\n- [HarnessRouter vs Parallax](https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents.md)\n- [Jules vs Paperclip](https://www.anchorterminal.com/compare/jules-vs-paperclip.md)\n- [Jules vs Parallax](https://www.anchorterminal.com/compare/jules-vs-parallax-agents.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-19", "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", "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": "HarnessRouter vs Jules", "url": "" } ], "description": "HarnessRouter scores 53.2 (D) to Jules's 44.5 (E) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "HarnessRouter D 53.2", "Jules E 44.5", "scores" ], "h1": "HarnessRouter vs Jules", "image": "https://www.anchorterminal.com/assets/og/compare-harnessrouter-vs-jules.png", "path": "/compare/harnessrouter-vs-jules", "published": "2026-10-01", "section": "tools", "title": "HarnessRouter vs Jules for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-18", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules" }, "tokens": { "markdown": 3750, "slim": 780 }, "version": 1 }