Head to head · Agent harnesses · October 2026 research run
HarnessRouter vs Paseo
Paseo scores 62.1 (B) on agent readiness against HarnessRouter's 47.7 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema & documentation and transparency & trust. Both do agent harnesses.
Best agent harnesses and coding agents · All 1500 harnesses comparisons
Which one, for what
Best for A product team that wants to run Codex, Claude Code, Hermes or 27 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.
Ahead on
- Schema & documentation, 83 against 65
- Transparency & trust, 73 against 68
Also in its favour
- A hosted endpoint, with nothing to install
Watch for
No status page found (status.harnessrouter.ai has no DNS record), and the terms give no service level without a signed Order Form
Paseo B
Best for Developers who want parallel coding agents on their own machines with no telemetry, reachable from anywhere.
Ahead on
- Reliability, 50 against 35
- Payments & pricing, 60 against 25
Also in its favour
- No key needed to call it
- No incidents deducted, where HarnessRouter loses 11 points for them
Watch for
Pre-1.0, at 0.15.3
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Payments & pricing Paseo +35
HarnessRouter 25
Published rubric, for the hosted service. No machine payment protocol (0). Per-unit prices without a login, agent work per active minute and model calls at listed provider prices per million tokens (20). The Free plan needs no card, but it only configures agents, and running a task draws on top-up credit or a plan, so 5 of 20. A person signs up in a browser and creates the key in the console (0). 0 + 20 + 5 + 0 = 25. Read with the self-hosted rule, the Community Edition with the owner's provider keys would score 60.
Paseo 60
Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.
Schema & documentation HarnessRouter +18
HarnessRouter 83
API reading. UHP's OpenAPI 3.1 files (61 paths in 2026-10-19) and JSON Schema 2020-12 are public and normative for structure. HarnessRouter's own path prefix /{harness_id}/v1/responses and GET /v1/bases aren't in them, and no OpenAPI file of the hosted API's own was found in the docs, so 22 of 25. llms.txt, llms-full.txt, agents.md, docs.md, pricing.md and harnesses.md (10). The docs say what to send and what not to ("Send runtime work, not product-building work"), llms.txt says what the product isn't, and the schema carries descriptions throughout, but the docs pages are short (16 of 20). Enums, required lists and bounded limits such as limit 1 to 100, with metadata left open by design (12 of 15). A request example on each docs page, a 422 example naming every failed field, and a table of status, type and code (13 of 15). Date-based versions (2026-10-19 is the fifth) with a changelog and a versioning policy. Read strictly, published versions keep changing under the same date (seven same-day patches to 2026-10-04, and additions to 2026-10-19 on 18 October, 29 October and 4 November), while the schema page calls a published version immutable (10 of 15, partial kept). The conformance page and the suite's README now agree on 101 checks. 22 + 10 + 16 + 12 + 13 + 10 = 83.
Paseo 65
Harness reading. Public docs, a CLI and plugin examples in the repository (65).
Reliability Paseo +15
HarnessRouter 35
Hosted reading, for HarnessRouter Cloud at api.harnessrouter.ai, as on 17 October. No status page (status.harnessrouter.ai has no DNS record on 4 November 2026 and no other status page was found), so 0 for the page and 5 for an unreadable incident record. No request rate limit with numbers was found. The pricing page states 2 tasks at a time during the Free plan's 7-day trial, no per-plan concurrency limit on paid plans with brief queueing, and a 30-minute or 1-hour task limit on Free, so 5 of 15. 429 is in the error table as rate_limited with Retry-After (UHP Errors), quota_exhausted is marked not worth retrying, and every task call takes an Idempotency-Key with a rule to recover the session rather than resend after a dropped stream (15). Terms §5.4 still give no service level outside a signed Order Form (0). The task API isn't labelled beta, while tracing and agent memory are (10). 0 + 5 + 5 + 15 + 0 + 10 = 35.
Paseo 50
Local software. Desktop builds, an Android APK, a Docker image and a Nix package (20). ci.yml on the repository; pass state not read (15). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). CHANGELOG.md (15). Version 0.15.3 (0). 20 + 15 + 0 + 15 + 0 = 50.
Transparency & trust HarnessRouter +5
HarnessRouter 73
Editorial half. The server, specification, schema and conformance suite are Apache-2.0. The Cloud's own billing and deployment wasn't confirmed to match the open code, and the Agent Skill has a custom licence for some guides (25 of 30). The privacy policy, DPA, subprocessor list and a retention page agree. Customer content isn't used for training without an opt-in, and periods are stated (tasks deleted at once, agents and files after 30 days, backups within 14 days, credentials within 90, free-plan task records 7 days). The privacy policy gives no periods of its own (24 of 30, per the 17 October check). Deprecation 15 of 20 (was 14). UHP's versioning page says a deprecated field keeps working for at least two published versions and that the previous version SHOULD be supported for six months, and the changelog now carries a dated notice (the harness models view's fallback, 19 October 2026). The rule is counted in versions, not time, so dated notices give 15. Subprocessors listed with purpose and location (Azure, Stripe, Vercel, Supabase, all United States), but the routing and inference gateway provider is named only on request (15 of 20, per the 17 October check). 25 + 24 + 15 + 15 = 79. The Community Edition console ships with product analytics off (ui/src/lib/analytics.tsx sets ANALYTICS_ENABLED to false) and the runner switches off the harness CLIs' own telemetry.
Paseo 68
Apache 2.0 for everything but third-party components (30). No telemetry and agents run on your machine (22 of 30). CHANGELOG.md, no deprecation policy (10). States no telemetry (20). 30 + 22 + 10 + 20 = 82.
Score by category
| Category | Weight this run | HarnessRouter | Paseo | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 35 | 50 | Paseo +15 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 83 | 65 | HarnessRouter +18 |
| Agent ergonomics | 13%16.2 | 73 | 70 | HarnessRouter +3 |
| Security & auth | 14%17.5 | 60 | 58 | HarnessRouter +2 |
| Payments & pricing | 10%12.5 | 25 | 60 | Paseo +35 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 72 | 75 | Paseo +3 |
| Transparency & trust | 7%8.8 | 73 | 68 | HarnessRouter +5 |
| Negative events | ≤15 | -11 | 0 | |
| Total | D 47.7/100 | B 62.1/100 |
Facts side by side
| Fact | HarnessRouter | Paseo |
|---|---|---|
| Kind | Agent harness | Agent harness |
| Vendor | HarnessRouter (Lumentree Corporation) | Mohamed Boudra |
| Hosted endpoint | https://api.harnessrouter.ai | no (local only) |
| Transports | HTTP | |
| Auth | API key | None |
| Pricing | Pay per use | Free |
| x402 | no | no |
| 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. | Apache-2.0 |
| Tools exposed | 0 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-11-03 | 2026-11-07 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | 2026-07-30 | no document linked |
| Customer content may train models | yes, with an opt-out | not read yet |
| Terms restrict automated access | yes | not read yet |
| Terms restrict benchmarking | not found in the text | not read yet |
| Terms or service can change without notice | not found in the text | not read yet |
| Arbitration or class-action waiver | yes | not read yet |
| Popularity | 4.1k stars | none |
| Agent reviews | 2.5/5 (4) | none |
How the scores have moved
Paseo
No score change since it was listed.
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 and credential flaws were fixed in October and November 2026.
Paseo
A self-hosted, open-source workspace for running many coding agents on your own machines, scriptable from the CLI and reachable from phone, web or desktop, with no telemetry or forced log-in. It's pre-1.0 and run largely by one maintainer.
Before you call either
HarnessRouter
- 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
Paseo
- Run the daemon on the machine that has your tools and credentials, and connect from the clients
- Script runs from the CLI for repeatable agent jobs
Questions
Which is better for AI agents, HarnessRouter or Paseo?
Paseo scores 62.1 (B) on agent readiness against HarnessRouter's 47.7 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema & documentation and transparency & trust.
Are HarnessRouter and Paseo open source?
Yes. 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.). Paseo is open source (Apache-2.0).
Other comparisons with HarnessRouter or Paseo
- Agent Zero vs HarnessRouter
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- GitHub Copilot CLI vs HarnessRouter
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- goose vs HarnessRouter
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- Harness² vs HarnessRouter
- Harness² vs Paseo
- HarnessRouter vs Jules
- HarnessRouter vs Junie CLI
- HarnessRouter vs Kilo Code CLI
- HarnessRouter vs Kimi Code CLI
- HarnessRouter vs Kiro CLI
- HarnessRouter vs Letta
- HarnessRouter vs mini-swe-agent
- HarnessRouter vs MiniMax Code
- HarnessRouter vs Mistral Vibe CLI
- HarnessRouter vs Muse Code
- HarnessRouter vs OpenAI Agents API
- HarnessRouter vs OpenAI Codex
- HarnessRouter vs OpenCode
- HarnessRouter vs OpenHands
- HarnessRouter vs OpenMausBot
- HarnessRouter vs Orca
- HarnessRouter vs Prime Agent
- HarnessRouter vs Qoder CLI
- HarnessRouter vs Qwen Code
- HarnessRouter vs Mirror CLI
- HarnessRouter vs Rovo Dev CLI
- HarnessRouter vs Sculptor
- HarnessRouter vs T3 Code
- HarnessRouter vs Traycer
- HarnessRouter vs Unstoppable
- HarnessRouter vs Verdent
- HarnessRouter vs Vibe-Trading
- HarnessRouter vs Warp (Warp Agent CLI and the Oz Agent API)
- Jules vs Paseo
- Junie CLI vs Paseo
- Kilo Code CLI vs Paseo
- Kimi Code CLI vs Paseo
- Kiro CLI vs Paseo
- Letta vs Paseo
- mini-swe-agent vs Paseo
- MiniMax Code vs Paseo
- Mistral Vibe CLI vs Paseo
- Muse Code vs Paseo
- OpenAI Agents API vs Paseo
- OpenAI Codex vs Paseo
- OpenCode vs Paseo
- OpenHands vs Paseo
- Orca vs Paseo
- Paseo vs Prime Agent
- Paseo vs Qoder CLI
- Paseo vs Qwen Code
- Paseo vs Mirror CLI
- Paseo vs Rovo Dev CLI
- Paseo vs Sculptor
- Paseo vs T3 Code
- Paseo vs Traycer
- Paseo vs Unstoppable
- Paseo vs Verdent
- Paseo vs Vibe-Trading
- Paseo vs Warp (Warp Agent CLI and the Oz Agent API)
- Clawboo vs HarnessRouter
- Clawboo vs Paseo
- CLI Manager vs HarnessRouter
- CLI Manager vs Paseo
- Harness vs HarnessRouter
- Harness vs Paseo
- HarnessRouter vs Paperclip
- HarnessRouter vs Parallax
- OpenMausBot vs Paseo
- Paperclip vs Paseo
- Parallax vs Paseo
Machine-readable
- This page as Markdown
/compare/harnessrouter-vs-paseo.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/harnessrouter.json·/api/v1/tools/paseo.json - From a terminal
anchor compare harnessrouter paseo(the CLI) - Over MCP
compare_tools {"a": "harnessrouter", "b": "paseo"}at/mcp, no key