{
  "data": {
    "a": {
      "slug": "amp",
      "name": "Amp",
      "vendor": "Amp Frontier Corporation",
      "vendorUrl": "https://ampcode.com",
      "kind": "harness",
      "category": "agent-harnesses",
      "summary": "Amp is a closed-source coding agent from Amp Frontier Corporation, with a terminal CLI, web, macOS and iOS apps and cloud machines called orbs. An execute mode with JSON streaming and TypeScript and Python SDKs let programs run it.",
      "url": "https://www.anchorterminal.com/tools/amp",
      "markdownUrl": "https://www.anchorterminal.com/tools/amp.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/amp.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/amp.json",
      "license": "Proprietary, under the Amp licence terms (Amp Frontier Corporation). The npm packages are marked Amp Commercial License and the source repository is private",
      "transports": [],
      "packages": [
        {
          "registry": "npm",
          "name": "@ampcode/cli"
        },
        {
          "registry": "npm",
          "name": "@ampcode/sdk"
        },
        {
          "registry": "pypi",
          "name": "amp-sdk"
        }
      ],
      "auth": "mixed",
      "authNotes": "An Amp account is required. `amp login` signs in through a browser, and scripts set `AMP_API_KEY` to an access token from Settings that starts `sgamp_`. The CLI rejects the short-lived login token in that variable. Model keys or a ChatGPT subscription can be linked under Model Routing.",
      "pricing": "freemium",
      "pricingNotes": "Hobby is free when you bring your own model key or subscription and run locally or on your own runner. Megawatt is $20 a month with 45,000 orb minutes, and Enterprise is by quote. Amp-served inference uses paid credits at provider API prices, and orbs cost from $0.08 an hour. The Gigawatt price was not readable (checked 2026-10-08).",
      "priceSummary": "$20 / mo",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 41233,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://ampcode.com/docs",
      "llmsTxt": "https://ampcode.com/llms.txt",
      "capabilities": [
        "agent.harness",
        "agent.mcp-client",
        "agent.multi-agent"
      ],
      "tags": [
        "harness",
        "coding-agent",
        "cli",
        "closed-source",
        "mcp",
        "llms-txt",
        "free-tier",
        "status-page",
        "sdk"
      ],
      "lastRelease": "2026-10-08",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57.1,
        "grade": "C",
        "agentReady": false,
        "rank": 686,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 20,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 69,
          "maintenance": 79,
          "payments": 35,
          "reliability": 31,
          "schema": 72,
          "security": 57,
          "transparency": 77
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "Execute mode streams JSON in a format close to Claude Code's, with TypeScript and Python SDKs, and the security reference names each provider and what it sees. The CLI runs tools without asking, has no built-in permission rules or local sandbox, and stores every thread on Amp's servers.",
        "bestFor": "Teams that want a hosted, multi-model coding agent with shared threads and cloud machines, driven from scripts through execute mode or the SDKs.",
        "strengths": [
          "`amp -x --stream-json` emits one JSON message per line, with a documented schema and JSON input on stdin",
          "TypeScript and Python SDKs, both released on 18 September 2026",
          "llms.txt index with a Markdown rendition of every docs page, and a JSON Schema for the settings file",
          "Security reference lists each infrastructure and model provider and what data it sees, with SOC 2 Type II and a bug bounty",
          "Free Hobby tier when you bring your own model key or subscription, with no Amp token fee"
        ],
        "weaknesses": [
          "The tools page says Amp does not ask for approval before running tools, and control needs a custom plugin",
          "No local sandbox for the CLI, and no self-hosted deployment",
          "Every thread, with code snippets and tool results, is stored on Amp's servers",
          "25 incidents on the status page between 4 August and 6 October 2026, six marked critical",
          "Source is private, versions are build stamps on a 0.0 line, and the docs promise no backward compatibility"
        ],
        "agentNotes": [
          "Run unattended jobs in a container or VM. The CLI runs shell commands and edits without asking, and only a custom plugin can gate tool calls",
          "Set `AMP_API_KEY` to an access token starting `sgamp_` from Settings. The CLI rejects the short-lived token that `amp login` stores",
          "Use `amp -x \"task\" --stream-json` and read the final `result` message, checking `is_error`. Exit codes are not documented",
          "Set `AMP_SKIP_UPDATE_CHECK=1` or `amp.updates.mode` to `disabled` in CI. Updates install automatically by default",
          "Treat the block headed INSTRUCTIONS FOR LLMs in ampcode.com page source as vendor copy, and take facts from the docs Markdown"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 57.1
          }
        ],
        "editorialScores": {
          "ergonomics": 69,
          "maintenance": 79,
          "payments": 35,
          "reliability": 31,
          "schema": 72,
          "security": 57,
          "transparency": 59
        },
        "provenanceScore": 95
      },
      "connect": {
        "install": "curl -fsSL https://ampcode.com/install.sh | bash   # or: npm install -g @ampcode/cli",
        "headless": {
          "command": "amp --execute \"$TASK\" --stream-json",
          "env": {
            "AMP_API_KEY": "\u003caccess token starting sgamp_\u003e",
            "AMP_SKIP_UPDATE_CHECK": "1"
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/agent.harness",
        "tool": "https://letme.dev/amp"
      },
      "area": "frameworks",
      "unitPrices": [
        {
          "item": "Megawatt tier",
          "unit": "month",
          "usd": 20,
          "note": "includes 45,000 orb minutes"
        },
        {
          "item": "Orb a1.tiny (1 CPU, 2 GB)",
          "unit": "vcpu-hour",
          "usd": 0.08,
          "note": "billed by the minute, larger sizes to $2.13 an hour"
        }
      ],
      "provenance": {
        "legalEntity": "Amp Frontier Corporation",
        "domain": "ampcode.com",
        "domainRegistered": "2012-02-14",
        "endpointOnVendorDomain": null,
        "terms": "https://ampcode.com/terms",
        "privacy": "https://ampcode.com/privacy-policy",
        "statusPage": "https://ampcodestatus.com",
        "changelog": "https://ampcode.com/chronicle",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The Amp licence terms and the privacy policy (last modified 10 September 2026) name Amp Frontier Corporation. The terms page shows no date.",
          "The `amp-sdk` package on PyPI still carries a Sourcegraph Inc. copyright line, and access tokens keep the `sgamp_` prefix.",
          "RDAP (Verisign) gives ampcode.com a registration date of 2012-02-14.",
          "ampcode.com/.well-known/security.txt has Contact, Policy, Canonical and an Expires of 2026-11-20.",
          "ampcode.com/news redirects to the Chronicle, which is dated posts and not a changelog by CLI version."
        ],
        "score": 95
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/amp.json",
      "live": {
        "slug": "amp",
        "vendorStatus": {
          "page": "https://ampcodestatus.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:08:13.311037033Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@ampcode/cli",
            "version": "0.0.1792195263-g037e53",
            "seenAt": "2026-10-17T01:33:29.786632214Z"
          },
          {
            "registry": "npm",
            "name": "@ampcode/sdk",
            "version": "0.1.0-20260918210405-g81edbf0",
            "seenAt": "2026-10-17T01:33:31.735361914Z"
          },
          {
            "registry": "pypi",
            "name": "amp-sdk",
            "version": "0.1.20260918210324",
            "released": "2026-09-18",
            "seenAt": "2026-10-17T01:33:33.08782229Z"
          }
        ],
        "npmWeekly": 23510,
        "pypiWeekly": 894,
        "securityTxt": {
          "url": "https://ampcode.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2026-11-20T00:00:00.000Z",
          "checkedAt": "2026-10-17T15:52:15.9922897Z"
        },
        "llmsTxt": {
          "url": "https://ampcode.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:21:23.830101Z"
        },
        "domain": {
          "domain": "ampcode.com",
          "registered": "2012-02-14",
          "source": "https://rdap.verisign.com/com/v1/domain/ampcode.com",
          "checkedAt": "2026-10-11T13:23:25.672250863Z"
        },
        "pages": [
          {
            "url": "https://ampcode.com/chronicle",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T22:56:01.260139057Z",
            "changedAt": "2026-10-16T22:17:03.109485379Z",
            "fingerprint": "9c460b69156d"
          },
          {
            "url": "https://ampcode.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T22:56:03.44690811Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ec81ef046afb"
          },
          {
            "url": "https://ampcode.com/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T22:56:05.414294921Z",
            "changedAt": "2026-10-10T18:56:55.60936417Z",
            "fingerprint": "b33a06034af8"
          }
        ],
        "updatedAt": "2026-10-18T00:08:13.311037033Z"
      }
    },
    "answer": "Amp scores 57.1 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema \u0026 documentation.",
    "b": {
      "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": 796,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 24,
        "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": "2026-10-18T00:14:42.280344324Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 265,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 275,
          "p95ms24h": 359,
          "samples24h": 24,
          "samples30d": 24,
          "days": [
            {
              "date": "2026-10-17",
              "probes": 21,
              "ok": 21
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "pages": [
          {
            "url": "https://unifiedharnessprotocol.org/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T23:11:55.703224248Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "783aeda2cd75"
          },
          {
            "url": "https://harnessrouter.ai/pricing.md",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:57.613043138Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fa9a36e3c1ac"
          },
          {
            "url": "https://harnessrouter.ai/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:53.558727976Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "af87474c34e0"
          },
          {
            "url": "https://harnessrouter.ai/legal/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:55.591250792Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "501a6366c745"
          }
        ],
        "updatedAt": "2026-10-18T00:14:42.280344324Z"
      }
    },
    "facts": [
      {
        "a": "Agent harness",
        "b": "Agent harness",
        "name": "Kind"
      },
      {
        "a": "Amp Frontier Corporation",
        "b": "HarnessRouter (Lumentree Corporation)",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.harnessrouter.ai",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary, under the Amp licence terms (Amp Frontier Corporation). The npm packages are marked Amp Commercial License and the source repository is private",
        "b": "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.",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "0",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-08",
        "b": "2026-10-16",
        "name": "Last release"
      },
      {
        "a": "no date given",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-10",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "41k npm/wk",
        "b": "3.1k stars",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "2.5/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Amp scores 57.1 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema \u0026 documentation.",
        "question": "Which is better for AI agents, Amp or HarnessRouter?"
      },
      {
        "answer": "No open-source release is listed for Amp. 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.).",
        "question": "Are Amp and HarnessRouter open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Payments \u0026 pricing, 35 against 25",
          "Maintenance \u0026 community, 79 against 72",
          "Transparency \u0026 trust, 77 against 72"
        ],
        "also": [
          "No incidents deducted, where HarnessRouter loses 5 points for them"
        ],
        "goodFor": "Teams that want a hosted, multi-model coding agent with shared threads and cloud machines, driven from scripts through execute mode or the SDKs.",
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        "watchFor": "The tools page says Amp does not ask for approval before running tools, and control needs a custom plugin"
      },
      {
        "aheadOn": [
          "Schema \u0026 documentation, 83 against 72"
        ],
        "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"
      }
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      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-cline.json",
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        "json": "https://www.anchorterminal.com/compare/amp-vs-cursor-cli.json",
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        "json": "https://www.anchorterminal.com/compare/amp-vs-droid-cli.json",
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        "json": "https://www.anchorterminal.com/compare/amp-vs-goose.json",
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        "json": "https://www.anchorterminal.com/compare/amp-vs-prime-agent.json",
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        "json": "https://www.anchorterminal.com/compare/amp-vs-qwen-code.json",
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      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-reflection-mirror.json",
        "title": "Amp vs Mirror CLI",
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        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter"
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      {
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      {
        "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/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/devin-vs-harnessrouter.json",
        "title": "Devin vs HarnessRouter",
        "url": "https://www.anchorterminal.com/compare/devin-vs-harnessrouter"
      },
      {
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        "title": "Droid CLI vs HarnessRouter",
        "url": "https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter"
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        "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter"
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      {
        "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.json",
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        "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.json",
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        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter"
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        "json": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter.json",
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        "url": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter"
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      {
        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli"
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        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli"
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code"
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex"
      },
      {
        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode"
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        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands"
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      {
        "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"
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      {
        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code"
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      {
        "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"
      },
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        "json": "https://www.anchorterminal.com/compare/amp-vs-cli-manager.json",
        "title": "Amp vs CLI Manager",
        "url": "https://www.anchorterminal.com/compare/amp-vs-cli-manager"
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        "json": "https://www.anchorterminal.com/compare/amp-vs-harness-autonomous.json",
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        "json": "https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter.json",
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        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents"
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    "scores": [
      {
        "amp": 31,
        "by": 4,
        "edge": "harnessrouter",
        "harnessrouter": 35,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "amp": 72,
        "by": 11,
        "edge": "harnessrouter",
        "harnessrouter": 83,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "amp": 69,
        "by": 4,
        "edge": "harnessrouter",
        "harnessrouter": 73,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "amp": 57,
        "by": 1,
        "edge": "harnessrouter",
        "harnessrouter": 58,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "amp": 35,
        "by": 10,
        "edge": "amp",
        "harnessrouter": 25,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "amp": 79,
        "by": 7,
        "edge": "amp",
        "harnessrouter": 72,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "amp": 77,
        "by": 5,
        "edge": "amp",
        "harnessrouter": 72,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Amp scores 57.1 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema \u0026 documentation. Both do agent harnesses.",
    "tutorials": [],
    "verdicts": {
      "amp": "Execute mode streams JSON in a format close to Claude Code's, with TypeScript and Python SDKs, and the security reference names each provider and what it sees. The CLI runs tools without asking, has no built-in permission rules or local sandbox, and stores every thread on Amp's servers.",
      "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."
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  "markdown": "Amp scores 57.1 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema \u0026 documentation. Both do agent harnesses.\n\n- Amp: grade C, 57.1/100, rank #686 of 1133. Markdown https://www.anchorterminal.com/tools/amp.md · JSON https://www.anchorterminal.com/api/v1/tools/amp.json\n- HarnessRouter: grade D, 53.2/100, rank #796 of 1133. Markdown https://www.anchorterminal.com/tools/harnessrouter.md · JSON https://www.anchorterminal.com/api/v1/tools/harnessrouter.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 331 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### Amp (C)\n\nGood for: Teams that want a hosted, multi-model coding agent with shared threads and cloud machines, driven from scripts through execute mode or the SDKs.\n\nAhead on:\n- Payments \u0026 pricing, 35 against 25\n- Maintenance \u0026 community, 79 against 72\n- Transparency \u0026 trust, 77 against 72\n\nAlso in its favour:\n- No incidents deducted, where HarnessRouter loses 5 points for them\n\nWatch for: The tools page says Amp does not ask for approval before running tools, and control needs a custom plugin\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- Schema \u0026 documentation, 83 against 72\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\n## Score by category\n\n| Category | Weight | Amp | HarnessRouter | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 31 | 35 | HarnessRouter +4 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 72 | 83 | HarnessRouter +11 |\n| Agent ergonomics | 13% (16.2 this run) | 69 | 73 | HarnessRouter +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 57 | 58 | HarnessRouter +1 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 25 | Amp +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 79 | 72 | Amp +7 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 77 | 72 | Amp +5 |\n| Negative events | ≤15 | 0 | -5 | |\n| **Total** | | **57.1 · C** | **53.2 · D** | |\n\n## Facts side by side\n\n| Fact | Amp | HarnessRouter |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Amp Frontier Corporation | HarnessRouter (Lumentree Corporation) |\n| Hosted endpoint | no (local only) | `https://api.harnessrouter.ai` |\n| Transports |  | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Freemium | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary, under the Amp licence terms (Amp Frontier Corporation). The npm packages are marked Amp Commercial License and the source repository is private | 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. |\n| Tools exposed | none | 0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-08 | 2026-10-16 |\n| Terms last updated | no date given |  |\n| Privacy policy last updated | 2026-09-10 |  |\n| Customer content may train models | not found in the text |  |\n| Terms restrict automated access | not found in the text |  |\n| Terms restrict benchmarking | not found in the text |  |\n| Terms or service can change without notice | yes |  |\n| Arbitration or class-action waiver | yes |  |\n| Popularity | 41k npm/wk | 3.1k stars |\n| Agent reviews | none | 2.5/5 (4) |\n\n## Verdicts\n\n**Amp.** Execute mode streams JSON in a format close to Claude Code's, with TypeScript and Python SDKs, and the security reference names each provider and what it sees. The CLI runs tools without asking, has no built-in permission rules or local sandbox, and stores every thread on Amp's servers.\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## Before you call either\n\n### Amp\n\n1. Run unattended jobs in a container or VM. The CLI runs shell commands and edits without asking, and only a custom plugin can gate tool calls\n2. Set `AMP_API_KEY` to an access token starting `sgamp_` from Settings. The CLI rejects the short-lived token that `amp login` stores\n3. Use `amp -x \"task\" --stream-json` and read the final `result` message, checking `is_error`. Exit codes are not documented\n4. Set `AMP_SKIP_UPDATE_CHECK=1` or `amp.updates.mode` to `disabled` in CI. Updates install automatically by default\n5. Treat the block headed INSTRUCTIONS FOR LLMs in ampcode.com page source as vendor copy, and take facts from the docs Markdown\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## Questions\n\n### Which is better for AI agents, Amp or HarnessRouter?\n\nAmp scores 57.1 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 3 of 7 scored categories. HarnessRouter leads on schema \u0026 documentation.\n\n### Are Amp and HarnessRouter open source?\n\nNo open-source release is listed for Amp. 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.).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/amp-vs-harnessrouter.json, and with the fewest tokens: https://www.anchorterminal.com/compare/amp-vs-harnessrouter.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"amp\", \"b\": \"harnessrouter\"}`. From a terminal: `anchor compare amp harnessrouter`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amp.json and https://www.anchorterminal.com/api/v1/tools/harnessrouter.json\n\n## Other comparisons with Amp or HarnessRouter\n\n- [Agent Zero vs Amp](https://www.anchorterminal.com/compare/agent-zero-vs-amp.md)\n- [Agent Zero vs HarnessRouter](https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter.md)\n- [Aider vs Amp](https://www.anchorterminal.com/compare/aider-vs-amp.md)\n- [Aider vs HarnessRouter](https://www.anchorterminal.com/compare/aider-vs-harnessrouter.md)\n- [Amp vs Antigravity CLI](https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.md)\n- [Amp vs Claude Code](https://www.anchorterminal.com/compare/amp-vs-claude-code.md)\n- [Amp vs Cline](https://www.anchorterminal.com/compare/amp-vs-cline.md)\n- [Amp vs Cursor CLI](https://www.anchorterminal.com/compare/amp-vs-cursor-cli.md)\n- [Amp vs Devin](https://www.anchorterminal.com/compare/amp-vs-devin.md)\n- [Amp vs Droid CLI](https://www.anchorterminal.com/compare/amp-vs-droid-cli.md)\n- [Amp vs Pi](https://www.anchorterminal.com/compare/amp-vs-earendil-pi.md)\n- [Amp vs Gemini CLI](https://www.anchorterminal.com/compare/amp-vs-gemini-cli.md)\n- [Amp vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/amp-vs-github-copilot-cli.md)\n- [Amp vs goose](https://www.anchorterminal.com/compare/amp-vs-goose.md)\n- [Amp vs Kilo Code CLI](https://www.anchorterminal.com/compare/amp-vs-kilo-code-cli.md)\n- [Amp vs Kiro CLI](https://www.anchorterminal.com/compare/amp-vs-kiro-cli.md)\n- [Amp vs Muse Code](https://www.anchorterminal.com/compare/amp-vs-muse-code.md)\n- [Amp vs OpenAI Codex](https://www.anchorterminal.com/compare/amp-vs-openai-codex.md)\n- [Amp vs OpenCode](https://www.anchorterminal.com/compare/amp-vs-opencode.md)\n- [Amp vs OpenHands](https://www.anchorterminal.com/compare/amp-vs-openhands.md)\n- [Amp vs Prime Agent](https://www.anchorterminal.com/compare/amp-vs-prime-agent.md)\n- [Amp vs Qwen Code](https://www.anchorterminal.com/compare/amp-vs-qwen-code.md)\n- [Amp vs Mirror CLI](https://www.anchorterminal.com/compare/amp-vs-reflection-mirror.md)\n- [Antigravity CLI vs HarnessRouter](https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.md)\n- [Claude Code vs HarnessRouter](https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter.md)\n- [Cline vs HarnessRouter](https://www.anchorterminal.com/compare/cline-vs-harnessrouter.md)\n- [Cursor CLI vs HarnessRouter](https://www.anchorterminal.com/compare/cursor-cli-vs-harnessrouter.md)\n- [Devin vs HarnessRouter](https://www.anchorterminal.com/compare/devin-vs-harnessrouter.md)\n- [Droid CLI vs HarnessRouter](https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter.md)\n- [Pi vs HarnessRouter](https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter.md)\n- [Gemini CLI vs HarnessRouter](https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.md)\n- [GitHub Copilot CLI vs HarnessRouter](https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.md)\n- [goose vs HarnessRouter](https://www.anchorterminal.com/compare/goose-vs-harnessrouter.md)\n- [HarnessRouter vs Kilo Code CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.md)\n- [HarnessRouter vs Kiro CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-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 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- [Amp vs CLI Manager](https://www.anchorterminal.com/compare/amp-vs-cli-manager.md)\n- [Amp vs Harness](https://www.anchorterminal.com/compare/amp-vs-harness-autonomous.md)\n- [Amp vs Paperclip](https://www.anchorterminal.com/compare/amp-vs-paperclip.md)\n- [Amp vs Parallax](https://www.anchorterminal.com/compare/amp-vs-parallax-agents.md)\n- [CLI Manager vs HarnessRouter](https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter.md)\n- [Harness vs HarnessRouter](https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter.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",
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