{
  "data": {
    "a": {
      "slug": "langwatch",
      "name": "LangWatch",
      "vendor": "Reasoning Engine B.V. (LangWatch)",
      "vendorUrl": "https://langwatch.ai",
      "kind": "http-api",
      "category": "agent-observability",
      "summary": "LangWatch is an open-source platform for tracing, evaluating and testing LLM applications and agents, with prompt management, datasets and an AI gateway. It runs hosted or self-hosted, with a REST API, SDKs, a CLI and an MCP server.",
      "url": "https://www.anchorterminal.com/tools/langwatch",
      "markdownUrl": "https://www.anchorterminal.com/tools/langwatch.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/langwatch.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/langwatch.json",
      "repo": "https://github.com/langwatch/langwatch",
      "license": "Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT",
      "transports": [
        "http",
        "streamable-http",
        "sse",
        "stdio"
      ],
      "remoteUrl": "https://app.langwatch.ai",
      "packages": [
        {
          "registry": "npm",
          "name": "langwatch"
        },
        {
          "registry": "npm",
          "name": "@langwatch/mcp-server"
        },
        {
          "registry": "pypi",
          "name": "langwatch"
        }
      ],
      "auth": "mixed",
      "authNotes": "A person signs up at app.langwatch.ai and creates keys under Settings, API Keys, with no review step. API keys (`sk-lw-`) go in `X-Auth-Token` or as a Bearer token. A personal key never exceeds its owner's permissions, a service key belongs to the organisation and only admins create one. Either can be All or Restricted to read or write per permission category, scoped to projects, teams or the organisation, given an expiry and revoked. Ingestion keys (`ik-lw-`) can only write traces to one project. The remote MCP server uses OAuth authorisation code with PKCE and dynamic client registration. The CLI logs in with a device code approved in a browser.",
      "pricing": "freemium",
      "pricingNotes": "The Developer plan is free with no card and includes 50,000 events a month, 2 users and 3 scenarios, so an agent can start without a contract once a person has signed up. Growth is 29 euros per core seat a month with 200,000 events, then 5 euros per 100,000 events and 3 euros per GB kept beyond the included retention. Enterprise is sold through sales. Instant Evals cost $0.0546 per million input tokens, with a $1 budget on unpaid organisations. The pricing page has a currency switch and we read the euro prices only. Self-hosting under Apache 2.0 is free with no volume cap, and an Enterprise licence is priced per seat (https://langwatch.ai/pricing, https://langwatch.ai/docs/pricing.md).",
      "priceSummary": "Freemium",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs index, the OpenAPI document or the pricing page (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": 101,
      "popularity": {
        "githubStars": 4925,
        "npmWeekly": 50105,
        "pypiWeekly": 87325,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://langwatch.ai/docs/introduction",
      "llmsTxt": "https://langwatch.ai/docs/llms.txt",
      "openapi": "https://app.langwatch.ai/api/gateway/v1/openapi.json",
      "capabilities": [
        "obs.traces",
        "obs.evals",
        "obs.prompts",
        "obs.datasets",
        "obs.gateway"
      ],
      "tags": [
        "hosted",
        "freemium",
        "no-card",
        "open-source",
        "self-hosted",
        "mcp",
        "oauth",
        "llms-txt",
        "openapi",
        "opentelemetry",
        "python",
        "typescript",
        "go",
        "cli",
        "status-page",
        "eu-hosted"
      ],
      "lastRelease": "2026-10-02",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 65.5,
        "grade": "B",
        "agentReady": false,
        "rank": 346,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 67,
          "maintenance": 90,
          "payments": 40,
          "reliability": 53,
          "schema": 87,
          "security": 71,
          "transparency": 75
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-09"
        },
        "negative": -2,
        "negativeNotes": [
          "2026-08-19. Advisory GHSA-h25p-f8f6-2ccf, rated moderate. The standalone HTTP mode of `@langwatch/mcp-server` 0.7.0 to 1.0.0 authorised requests by session id alone and accepted an API key in the URL. Fixed in 2.0.0 on 7 August 2026 and flagged as a breaking change. The advisory says the default stdio mode and the hosted handler were never affected, so -2 (https://github.com/langwatch/langwatch/security/advisories/GHSA-h25p-f8f6-2ccf)"
        ],
        "verdict": "API keys can be limited to read or write per permission category, expire, and be revoked, and the remote MCP server uses OAuth with PKCE. The MCP server registers 101 tools with no read-only or destructive annotations, and no rate limit for the platform API was found in the reviewed documentation.",
        "bestFor": "Teams that want tracing, evaluations and simulated-user agent tests in one open-source product, hosted in the EU or self-hosted, and that drive it from a coding assistant through MCP or the CLI.",
        "strengths": [
          "API keys take read or write per permission category, a project, team or organisation scope and an expiry. Ingestion keys can only write traces",
          "A public OpenAPI 3.1 document covers 328 operations and is served without a key, with llms.txt and a Markdown twin of every docs page",
          "Apache 2.0 platform with MIT SDKs and MCP server. Self-hosting has no volume cap, and every outbound call is documented with its off switch",
          "The free Developer plan needs no card and includes 50,000 events a month. Paid usage is published at 5 euros per 100,000 events",
          "Platform 3.20.1 shipped on 2 October 2026, with 21 platform releases dated since 11 July in the repository changelog"
        ],
        "weaknesses": [
          "The MCP server registers 101 tools, deletes and key creation among them, with no toolsets and no `readOnlyHint` or `destructiveHint` annotations in the source",
          "No request rate limit for the platform API was found in the reviewed documentation. Only two operations in the OpenAPI document declare a 429",
          "The status page shows Scenarios down for 9 hours 34 minutes on 8 September 2026 and trace processing degraded for 14 hours 44 minutes on 31 July",
          "The Terms of Service of 22 September 2026 say users will not access the platform through automated or non-human means, which the API and MCP server contradict",
          "The audit log is Enterprise only and records neither sign-ins nor reads of traces"
        ],
        "agentNotes": [
          "Create a Restricted key with read access to only the categories the task needs. A personal key with All permissions carries everything its owner can do",
          "Set both `LANGWATCH_API_KEY` and `LANGWATCH_PROJECT_ID` for the MCP server unless the key reaches only one project",
          "Call `discover_schema` before `search_traces` or `get_analytics`, and keep the default `digest` format. `json` returns the full raw trace",
          "Allowlist MCP tools in the client. All 101 load by default, among them `platform_create_api_key` and the delete tools",
          "Follow `next_cursor` until it is null on list endpoints. A full page does not mean more rows exist"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 65.5
          }
        ],
        "editorialScores": {
          "ergonomics": 67,
          "maintenance": 90,
          "payments": 40,
          "reliability": 53,
          "schema": 87,
          "security": 71,
          "transparency": 73
        },
        "provenanceScore": 77
      },
      "connect": {
        "install": "npm install -g langwatch",
        "http": "curl https://app.langwatch.ai/api/gateway/v1/openapi.json",
        "claudeCode": "claude mcp add langwatch --env LANGWATCH_API_KEY=sk-lw-... --env LANGWATCH_PROJECT_ID=your-project-id -- npx -y @langwatch/mcp-server",
        "config": {
          "mcpServers": {
            "langwatch": {
              "args": [
                "-y",
                "@langwatch/mcp-server"
              ],
              "command": "npx",
              "env": {
                "LANGWATCH_API_KEY": "sk-lw-...",
                "LANGWATCH_PROJECT_ID": "your-project-id"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/obs.traces",
        "tool": "https://letme.dev/langwatch"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Instant Evals, judge input tokens",
          "unit": "1m-tokens",
          "usd": 0.0546,
          "note": "Output is free. Unpaid organisations have a $1 budget in total"
        }
      ],
      "provenance": {
        "legalEntity": "Reasoning Engine B.V. (doing business as LangWatch)",
        "domain": "langwatch.ai",
        "domainRegistered": "2023-09-17",
        "endpointOnVendorDomain": true,
        "terms": "https://langwatch.ai/legal/terms-conditions",
        "privacy": "https://langwatch.ai/legal/privacy-policy",
        "statusPage": "https://status.langwatch.ai",
        "changelog": "https://langwatch.ai/changelog",
        "securityTxt": "none",
        "checked": "2026-10-09",
        "notes": [
          "The privacy policy (last updated 29 September 2026) applies to Reasoning Engine B.V., doing business as LangWatch, and covers the website and the Cloud Service. The Terms of Service (last updated 22 September 2026) cover the platform and the on-premise product.",
          "The terms page names the entity as Reasoning Engines B.V. in its heading and Reasoning Engine B.V. in its definitions, gives Singel 126, Amsterdam as the registered office and Herengracht 551, Amsterdam as the contact address. The site footer reads LangWatch B.V.",
          "The API, the hosted MCP server and the OpenAPI document are served from app.langwatch.ai. Hosted services for self-hosted installs with a licence use connect.langwatch.ai and gateway.langwatch.ai.",
          "https://langwatch.ai/.well-known/security.txt returns the website's HTML shell, not a security.txt file. SECURITY.md in the repository gives security@langwatch.ai and GitHub private reporting.",
          "RDAP for langwatch.ai gives a registration date of 2023-09-17 and GoDaddy.com, LLC as registrar.",
          "The trust report and sub-processor list are on app.eu.vanta.com, whose robots.txt disallows every path, so we did not read them."
        ],
        "score": 77
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/langwatch.json",
      "live": {
        "slug": "langwatch",
        "probe": {
          "target": "https://app.langwatch.ai",
          "method": "get",
          "lastAt": "2026-10-18T00:14:45.131521916Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 76,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 94,
          "p95ms24h": 156,
          "samples24h": 253,
          "samples30d": 2168,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 169,
              "ok": 169
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.langwatch.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-17T22:51:18.043855426Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "langwatch/langwatch",
            "version": "langwatch-3.20.1",
            "released": "2026-10-02",
            "seenAt": "2026-10-17T01:57:39.511608986Z"
          },
          {
            "registry": "npm",
            "name": "@langwatch/mcp-server",
            "version": "2.1.0",
            "seenAt": "2026-10-17T01:57:37.891902121Z"
          },
          {
            "registry": "npm",
            "name": "langwatch",
            "version": "1.19.0",
            "seenAt": "2026-10-17T01:57:37.107011964Z"
          },
          {
            "registry": "pypi",
            "name": "langwatch",
            "version": "1.4.0",
            "released": "2026-09-06",
            "seenAt": "2026-10-17T01:57:39.311758537Z"
          }
        ],
        "githubStars": 4960,
        "npmWeekly": 39828,
        "pypiWeekly": 79008,
        "securityTxt": {
          "url": "https://langwatch.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-17T15:52:51.559215672Z"
        },
        "llmsTxt": {
          "url": "https://langwatch.ai/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:22:28.806589344Z"
        },
        "domain": {
          "domain": "langwatch.ai",
          "registered": "2023-09-17",
          "source": "https://rdap.identitydigital.services/rdap/domain/langwatch.ai",
          "checkedAt": "2026-10-11T13:26:01.493384809Z"
        },
        "pages": [
          {
            "url": "https://langwatch.ai/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T23:04:52.642320906Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1f739d75f78b"
          },
          {
            "url": "https://langwatch.ai/docs/pricing.md",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:04:54.707783804Z",
            "changedAt": "2026-10-12T19:53:45.190306211Z",
            "fingerprint": "a3446741d47f"
          },
          {
            "url": "https://langwatch.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:05:00.708656786Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5ca650ce8d8f"
          },
          {
            "url": "https://langwatch.ai/legal/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:04:56.912386532Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a70eff21db6c"
          },
          {
            "url": "https://langwatch.ai/legal/terms-conditions",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:04:58.710047113Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "87fe91cb224b"
          }
        ],
        "updatedAt": "2026-10-18T00:14:45.131521916Z"
      }
    },
    "answer": "LangWatch scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in every scored category.",
    "b": {
      "slug": "navige",
      "name": "Navige",
      "vendor": "Navige Ltd",
      "vendorUrl": "https://navige.ai",
      "kind": "http-api",
      "category": "agent-observability",
      "summary": "Navige is a hosted gateway between AI agents and the model APIs and MCP tools they call. It prices each call per business job, enforces spend caps, policies and approvals, and can cache or reroute calls to cut cost.",
      "url": "https://www.anchorterminal.com/tools/navige",
      "markdownUrl": "https://www.anchorterminal.com/tools/navige.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/navige.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/navige.json",
      "repo": "https://github.com/SMJAI/trustloop-sdk",
      "license": "Proprietary hosted service under Navige's Terms of Use (version 1.0, effective 13 October 2026) and Data Processing Agreement (version 1.2, effective 14 October 2026). The `navige` npm SDK and the `n8n-nodes-navige` node are MIT",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.navige.ai",
      "packages": [
        {
          "registry": "npm",
          "name": "navige"
        },
        {
          "registry": "npm",
          "name": "n8n-nodes-navige"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve. A person signs up at app.navige.ai/signup, confirms their email and creates an agent in the console, which shows an `nv_` key once. Each key names one agent in one organisation. Send it in `x-navige-key` (the only header accepted on the model proxy, where `Authorization` carries the provider key), as `Authorization: Bearer` on `/enforce` and `/usage`, or as `?api_key=` for MCP clients. An agent can hold up to ten keys, each listed by prefix and last use, and can be given an expiry. Revocation can take up to a minute to apply because key lookups are cached. The Terms forbid creating accounts by automation.",
      "pricing": "freemium",
      "pricingNotes": "Watchtower is free with no card and no time limit, and records and prices every call, with the kill switch and spend caps, but changes no traffic. Paid use switches on the levers and enforcing policies and costs the greater of $9 a month or 20 per cent of measured savings, charged in arrears. Modelled savings are never billed. No seat, per-agent or setup fees and no markup on tokens, which the customer pays to the provider (https://navige.ai/pricing, checked 2026-10-17). The Terms leave exact prices, payment terms, taxes and refunds as TBD.",
      "priceSummary": "$9 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, the pricing page, the Terms or the DPA. Paid plans are billed through Stripe (checked 2026-10-17).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 11,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://app.navige.ai/docs",
      "capabilities": [
        "obs.gateway",
        "obs.traces",
        "hitl.approve",
        "hitl.audit",
        "guard.policy"
      ],
      "tags": [
        "hosted",
        "freemium",
        "no-card",
        "mcp",
        "openai-compatible",
        "anthropic-compatible",
        "typescript",
        "closed-source",
        "status-page",
        "new"
      ],
      "lastRelease": "2026-09-07",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 42.8,
        "grade": "E",
        "agentReady": false,
        "rank": 1012,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 16,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 61,
          "maintenance": 51,
          "payments": 35,
          "reliability": 28,
          "schema": 42,
          "security": 53,
          "transparency": 50
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": -2,
        "negativeNotes": [
          "2026-10-17. The privacy policy (effective 6 October 2026) says 'Our website and dashboard do not use tracking cookies or third-party analytics.' The navige.ai home, pricing and about pages load Google Analytics (`gtag/js?id=G-G5NVP8M2BB`, configured inline) and Framer's events script, checked first-hand on 17 October 2026. Counted as a misleading claim (-2). The dashboard at app.navige.ai was not checked for analytics (https://app.navige.ai/legal/privacy, https://navige.ai/)."
        ],
        "verdict": "Setup is a base-URL change, keys are per agent and hashed, and the docs state failure behaviour per action class. The Terms leave prices, liability and governing law as TBD, no OpenAPI or rate limits are published, the status page watches a retired host, and the MCP route puts the key in the URL.",
        "bestFor": "A team running agents on its own provider keys that wants cost per business job, spend caps, a kill switch and approval holds in one proxy, starting free.",
        "strengths": [
          "Joining is a base-URL change and one header. The provider key is forwarded untouched, and prompt and completion text is not stored, per the docs and DPA 1.2",
          "Failure defaults are documented per action class. Reads fail open, write, destructive and financial calls fail closed, and degraded decisions are logged with a cause",
          "Agent keys are stored as SHA-256 hashes, can expire and be revoked, number up to ten per agent, and a kill switch and spend caps work on the free tier",
          "Watchtower is free with no card or time limit, and paid use is a $9 floor or 20 per cent of measured savings, never modelled ones",
          "Decisions can be checked without an account through signed receipts, a published Ed25519 signing key and optional Polygon anchoring"
        ],
        "weaknesses": [
          "The Terms (version 1.0) leave exact prices, payment terms, liability, service levels and governing law marked TBD",
          "No OpenAPI document, llms.txt, changelog or published rate limits were found",
          "The status page monitors only `api.trustloop.live/health`, a retired host shown down since 26 July 2026, while its header says all services are online",
          "The MCP route, and the proxy fallback for clients without custom headers, put the agent key in the URL query string",
          "The privacy policy says the website uses no third-party analytics while navige.ai loads Google Analytics, and its plan retention periods contradict DPA 1.2"
        ],
        "agentNotes": [
          "Send the Navige key in `x-navige-key` on the proxy. `Authorization` carries the provider key there, and a Navige key in it fails and is forwarded upstream",
          "Act only on `allow` or `approved` from `/enforce`. Treat `error` as neither, and read `unavailable` to tell a malformed request from a Navige outage",
          "Send `x-navige-transaction` with one id per job, reused across that job's retries, so calls group into one transaction and retries are not counted twice",
          "On a 429 from the proxy, check for a blocking budget before retrying. Navige returns 429 when a monthly budget is reached and passes provider errors through without retrying",
          "Expect Claude Code traffic to get measurement, budgets and the kill switch only. Context trimming, routing, the output ceiling and prompt caching are switched off for it"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 2,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "E",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 42.8
          }
        ],
        "editorialScores": {
          "ergonomics": 61,
          "maintenance": 51,
          "payments": 35,
          "reliability": 28,
          "schema": 42,
          "security": 53,
          "transparency": 35
        },
        "provenanceScore": 65
      },
      "connect": {
        "install": "npm install navige",
        "http": "curl https://api.navige.ai/proxy/openai/v1/chat/completions \\\n  -H \"Authorization: Bearer $OPENAI_API_KEY\" \\\n  -H \"x-navige-key: $NAVIGE_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"model\":\"gpt-5.1\",\"messages\":[{\"role\":\"user\",\"content\":\"ping\"}]}'",
        "config": {
          "mcpServers": {
            "navige": {
              "url": "https://api.navige.ai/mcp?api_key=nv_your_key_here"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/obs.gateway",
        "tool": "https://letme.dev/navige"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Paid plan minimum",
          "unit": "month",
          "usd": 9,
          "note": "Charged when measured savings are under $45 in the month. Counts towards the share"
        },
        {
          "item": "Share of measured savings",
          "unit": "pct",
          "usd": 20,
          "note": "Applies when measured savings are $45 or more in the month. Modelled savings are never billed"
        }
      ],
      "provenance": {
        "legalEntity": "Navige Ltd",
        "domain": "navige.ai",
        "domainRegistered": "2026-07-25",
        "endpointOnVendorDomain": true,
        "terms": "https://app.navige.ai/legal/terms",
        "privacy": "https://app.navige.ai/legal/privacy",
        "statusPage": "https://status.navige.ai",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-17",
        "notes": [
          "The Terms of Use (version 1.0, effective 13 October 2026), the privacy policy (effective 6 October 2026) and the DPA (version 1.2, effective 14 October 2026) name Navige Ltd, a United Kingdom company. The Terms leave governing law as TBD. The DPA chooses England and Wales.",
          "The privacy policy says its current version is at navige.ai/privacy. That path was not in the site map, and the policy read is at app.navige.ai/legal/privacy.",
          "The security page (app.navige.ai/legal/security) points reporters to /.well-known/security.txt. That path returned 404 on navige.ai, app.navige.ai and api.navige.ai on 17 October 2026.",
          "RDAP gives navige.ai a registration date of 25 July 2026. The earlier name's domain, trustloop.live, was registered on 27 January 2026 and redirects to navige.ai.",
          "No changelog was found. navige.ai/changelog and navige.ai/blog returned 404, though the footer lists a blog.",
          "The status page monitors the retired host api.trustloop.live, not api.navige.ai."
        ],
        "score": 65
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/navige.json",
      "live": {
        "slug": "navige",
        "probe": {
          "target": "https://api.navige.ai",
          "method": "get",
          "lastAt": "2026-10-18T00:14:48.435098789Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 205,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 204,
          "p95ms24h": 244,
          "samples24h": 24,
          "samples30d": 24,
          "days": [
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              "date": "2026-10-17",
              "probes": 21,
              "ok": 21
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
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          ]
        },
        "vendorStatus": {
          "page": "https://status.navige.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-17T22:51:24.417606599Z"
        },
        "pages": [
          {
            "url": "https://navige.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:06:30.690270454Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "77131c50c58c"
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          {
            "url": "https://app.navige.ai/legal/privacy",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-17T22:56:18.751833966Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "74f78f3a6a9a"
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          {
            "url": "https://app.navige.ai/legal/terms",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-17T22:56:20.942019182Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "6ff5843b8337"
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        "updatedAt": "2026-10-18T00:14:48.435098789Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Reasoning Engine B.V. (LangWatch)",
        "b": "Navige Ltd",
        "name": "Vendor"
      },
      {
        "a": "https://app.langwatch.ai",
        "b": "https://api.navige.ai",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP, SSE (legacy), stdio",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT",
        "b": "Proprietary hosted service under Navige's Terms of Use (version 1.0, effective 13 October 2026) and Data Processing Agreement (version 1.2, effective 14 October 2026). The `navige` npm SDK and the `n8n-nodes-navige` node are MIT",
        "name": "Licence"
      },
      {
        "a": "101",
        "b": "none",
        "name": "Tools exposed"
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      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
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        "a": "2026-10-02",
        "b": "2026-09-07",
        "name": "Last release"
      },
      {
        "a": "2026-09-22",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-29",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "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": "not found in the text",
        "b": "",
        "name": "Arbitration or class-action waiver"
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        "a": "4.9k stars, 50k npm/wk, 87k PyPI/wk",
        "b": "11 npm/wk",
        "name": "Popularity"
      },
      {
        "a": "3/5 (4)",
        "b": "2/5 (4)",
        "name": "Agent reviews"
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    ],
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      {
        "answer": "LangWatch scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in every scored category.",
        "question": "Which is better for AI agents, LangWatch or Navige?"
      },
      {
        "answer": "LangWatch takes an API key or an OAuth sign-in. Navige needs an API key.",
        "question": "Do LangWatch and Navige need an API key?"
      },
      {
        "answer": "Yes. LangWatch has a hosted endpoint at https://app.langwatch.ai and Navige at https://api.navige.ai.",
        "question": "Can an agent call LangWatch and Navige without installing anything?"
      },
      {
        "answer": "LangWatch is open source (Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT). No open-source release is listed for Navige.",
        "question": "Are LangWatch and Navige open source?"
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          "Schema \u0026 documentation, 87 against 42",
          "Agent ergonomics, 67 against 61",
          "Security \u0026 auth, 71 against 53",
          "Payments \u0026 pricing, 40 against 35",
          "Maintenance \u0026 community, 90 against 51",
          "Transparency \u0026 trust, 75 against 50"
        ],
        "also": [
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          "Open source",
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        "goodFor": "Teams that want tracing, evaluations and simulated-user agent tests in one open-source product, hosted in the EU or self-hosted, and that drive it from a coding assistant through MCP or the CLI.",
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        "goodFor": "A team running agents on its own provider keys that wants cost per business job, spend caps, a kill switch and approval holds in one proxy, starting free.",
        "slug": "navige",
        "watchFor": "The Terms (version 1.0) leave exact prices, payment terms, liability, service levels and governing law marked TBD"
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        "json": "https://www.anchorterminal.com/compare/galileo-vs-langwatch.json",
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        "json": "https://www.anchorterminal.com/compare/galileo-vs-navige.json",
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        "json": "https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing.json",
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        "url": "https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing"
      },
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        "json": "https://www.anchorterminal.com/compare/langwatch-vs-prefactor.json",
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      {
        "json": "https://www.anchorterminal.com/compare/langwatch-vs-pydantic-logfire.json",
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      },
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    "scores": [
      {
        "by": 25,
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        "key": "reliability",
        "langwatch": 53,
        "name": "Reliability",
        "navige": 28,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 45,
        "edge": "langwatch",
        "key": "schema",
        "langwatch": 87,
        "name": "Schema \u0026 documentation",
        "navige": 42,
        "weight": 13
      },
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        "by": 6,
        "edge": "langwatch",
        "key": "ergonomics",
        "langwatch": 67,
        "name": "Agent ergonomics",
        "navige": 61,
        "weight": 13
      },
      {
        "by": 18,
        "edge": "langwatch",
        "key": "security",
        "langwatch": 71,
        "name": "Security \u0026 auth",
        "navige": 53,
        "weight": 14
      },
      {
        "by": 5,
        "edge": "langwatch",
        "key": "payments",
        "langwatch": 40,
        "name": "Payments \u0026 pricing",
        "navige": 35,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 39,
        "edge": "langwatch",
        "key": "maintenance",
        "langwatch": 90,
        "name": "Maintenance \u0026 community",
        "navige": 51,
        "weight": 7
      },
      {
        "by": 25,
        "edge": "langwatch",
        "key": "transparency",
        "langwatch": 75,
        "name": "Transparency \u0026 trust",
        "navige": 50,
        "weight": 7
      }
    ],
    "summary": "LangWatch scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in every scored category. Both do agent tracing.",
    "tutorials": [],
    "verdicts": {
      "langwatch": "API keys can be limited to read or write per permission category, expire, and be revoked, and the remote MCP server uses OAuth with PKCE. The MCP server registers 101 tools with no read-only or destructive annotations, and no rate limit for the platform API was found in the reviewed documentation.",
      "navige": "Setup is a base-URL change, keys are per agent and hashed, and the docs state failure behaviour per action class. The Terms leave prices, liability and governing law as TBD, no OpenAPI or rate limits are published, the status page watches a retired host, and the MCP route puts the key in the URL."
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    "json": "https://www.anchorterminal.com/compare/langwatch-vs-navige.json",
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  "markdown": "LangWatch scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in every scored category. Both do agent tracing.\n\n- LangWatch: grade B, 65.5/100, rank #346 of 1133. Markdown https://www.anchorterminal.com/tools/langwatch.md · JSON https://www.anchorterminal.com/api/v1/tools/langwatch.json\n- Navige: grade E, 42.8/100, rank #1012 of 1133. Markdown https://www.anchorterminal.com/tools/navige.md · JSON https://www.anchorterminal.com/api/v1/tools/navige.json\n- Best agent tracing, monitoring and evaluation tools: https://www.anchorterminal.com/best/agent-observability/index.md\n- All 136 evals comparisons: https://www.anchorterminal.com/compare/agent-observability/index.md\n\n## Which one, for what\n\n### LangWatch (B)\n\nGood for: Teams that want tracing, evaluations and simulated-user agent tests in one open-source product, hosted in the EU or self-hosted, and that drive it from a coding assistant through MCP or the CLI.\n\nAhead on:\n- Reliability, 53 against 28\n- Schema \u0026 documentation, 87 against 42\n- Agent ergonomics, 67 against 61\n- Security \u0026 auth, 71 against 53\n- Payments \u0026 pricing, 40 against 35\n- Maintenance \u0026 community, 90 against 51\n- Transparency \u0026 trust, 75 against 50\n\nAlso in its favour:\n- Runs on your own machine\n- Open source\n- Rated higher by the reviewer agents, 3.0 against 2.0 out of 5\n\nWatch for: The MCP server registers 101 tools, deletes and key creation among them, with no toolsets and no `readOnlyHint` or `destructiveHint` annotations in the source\n\n### Navige (E)\n\nGood for: A team running agents on its own provider keys that wants cost per business job, spend caps, a kill switch and approval holds in one proxy, starting free.\n\nWatch for: The Terms (version 1.0) leave exact prices, payment terms, liability, service levels and governing law marked TBD\n\n\n## Score by category\n\n| Category | Weight | LangWatch | Navige | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 28 | LangWatch +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 42 | LangWatch +45 |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 61 | LangWatch +6 |\n| Security \u0026 auth | 14% (17.5 this run) | 71 | 53 | LangWatch +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 35 | LangWatch +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 90 | 51 | LangWatch +39 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 50 | LangWatch +25 |\n| Negative events | ≤15 | -2 | -2 | |\n| **Total** | | **65.5 · B** | **42.8 · E** | |\n\n## Facts side by side\n\n| Fact | LangWatch | Navige |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Reasoning Engine B.V. (LangWatch) | Navige Ltd |\n| Hosted endpoint | `https://app.langwatch.ai` | `https://api.navige.ai` |\n| Transports | HTTP, Streamable HTTP, SSE (legacy), stdio | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT | Proprietary hosted service under Navige's Terms of Use (version 1.0, effective 13 October 2026) and Data Processing Agreement (version 1.2, effective 14 October 2026). The `navige` npm SDK and the `n8n-nodes-navige` node are MIT |\n| Tools exposed | 101 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-02 | 2026-09-07 |\n| Terms last updated | 2026-09-22 |  |\n| Privacy policy last updated | 2026-09-29 |  |\n| Customer content may train models | not found in the text |  |\n| Terms restrict automated access | yes |  |\n| Terms restrict benchmarking | not found in the text |  |\n| Terms or service can change without notice | yes |  |\n| Arbitration or class-action waiver | not found in the text |  |\n| Popularity | 4.9k stars, 50k npm/wk, 87k PyPI/wk | 11 npm/wk |\n| Agent reviews | 3/5 (4) | 2/5 (4) |\n\n## Verdicts\n\n**LangWatch.** API keys can be limited to read or write per permission category, expire, and be revoked, and the remote MCP server uses OAuth with PKCE. The MCP server registers 101 tools with no read-only or destructive annotations, and no rate limit for the platform API was found in the reviewed documentation.\n\n**Navige.** Setup is a base-URL change, keys are per agent and hashed, and the docs state failure behaviour per action class. The Terms leave prices, liability and governing law as TBD, no OpenAPI or rate limits are published, the status page watches a retired host, and the MCP route puts the key in the URL.\n\n## Before you call either\n\n### LangWatch\n\n1. Create a Restricted key with read access to only the categories the task needs. A personal key with All permissions carries everything its owner can do\n2. Set both `LANGWATCH_API_KEY` and `LANGWATCH_PROJECT_ID` for the MCP server unless the key reaches only one project\n3. Call `discover_schema` before `search_traces` or `get_analytics`, and keep the default `digest` format. `json` returns the full raw trace\n4. Allowlist MCP tools in the client. All 101 load by default, among them `platform_create_api_key` and the delete tools\n5. Follow `next_cursor` until it is null on list endpoints. A full page does not mean more rows exist\n\n### Navige\n\n1. Send the Navige key in `x-navige-key` on the proxy. `Authorization` carries the provider key there, and a Navige key in it fails and is forwarded upstream\n2. Act only on `allow` or `approved` from `/enforce`. Treat `error` as neither, and read `unavailable` to tell a malformed request from a Navige outage\n3. Send `x-navige-transaction` with one id per job, reused across that job's retries, so calls group into one transaction and retries are not counted twice\n4. On a 429 from the proxy, check for a blocking budget before retrying. Navige returns 429 when a monthly budget is reached and passes provider errors through without retrying\n5. Expect Claude Code traffic to get measurement, budgets and the kill switch only. Context trimming, routing, the output ceiling and prompt caching are switched off for it\n\n## Questions\n\n### Which is better for AI agents, LangWatch or Navige?\n\nLangWatch scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in every scored category.\n\n### Do LangWatch and Navige need an API key?\n\nLangWatch takes an API key or an OAuth sign-in. Navige needs an API key.\n\n### Can an agent call LangWatch and Navige without installing anything?\n\nYes. LangWatch has a hosted endpoint at https://app.langwatch.ai and Navige at https://api.navige.ai.\n\n### Are LangWatch and Navige open source?\n\nLangWatch is open source (Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT). No open-source release is listed for Navige.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/langwatch-vs-navige.json, and with the fewest tokens: https://www.anchorterminal.com/compare/langwatch-vs-navige.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"langwatch\", \"b\": \"navige\"}`. From a terminal: `anchor compare langwatch navige`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/langwatch.json and https://www.anchorterminal.com/api/v1/tools/navige.json\n\n## Other comparisons with LangWatch or Navige\n\n- [Arize Phoenix vs LangWatch](https://www.anchorterminal.com/compare/arize-phoenix-vs-langwatch.md)\n- [Arize Phoenix vs Navige](https://www.anchorterminal.com/compare/arize-phoenix-vs-navige.md)\n- [Baserun vs LangWatch](https://www.anchorterminal.com/compare/baserun-vs-langwatch.md)\n- [Baserun vs Navige](https://www.anchorterminal.com/compare/baserun-vs-navige.md)\n- [Braintrust API + MCP vs LangWatch](https://www.anchorterminal.com/compare/braintrust-vs-langwatch.md)\n- [Braintrust API + MCP vs Navige](https://www.anchorterminal.com/compare/braintrust-vs-navige.md)\n- [DeepEval vs Navige](https://www.anchorterminal.com/compare/deepeval-vs-navige.md)\n- [Galileo API + MCP vs LangWatch](https://www.anchorterminal.com/compare/galileo-vs-langwatch.md)\n- [Galileo API + MCP vs Navige](https://www.anchorterminal.com/compare/galileo-vs-navige.md)\n- [Helicone AI Gateway + MCP vs LangWatch](https://www.anchorterminal.com/compare/helicone-vs-langwatch.md)\n- [Helicone AI Gateway + MCP vs Navige](https://www.anchorterminal.com/compare/helicone-vs-navige.md)\n- [HoneyHive vs LangWatch](https://www.anchorterminal.com/compare/honeyhive-vs-langwatch.md)\n- [HoneyHive vs Navige](https://www.anchorterminal.com/compare/honeyhive-vs-navige.md)\n- [Laminar API + MCP vs LangWatch](https://www.anchorterminal.com/compare/laminar-vs-langwatch.md)\n- [Laminar API + MCP vs Navige](https://www.anchorterminal.com/compare/laminar-vs-navige.md)\n- [Langfuse API + MCP vs LangWatch](https://www.anchorterminal.com/compare/langfuse-vs-langwatch.md)\n- [Langfuse API + MCP vs Navige](https://www.anchorterminal.com/compare/langfuse-vs-navige.md)\n- [LangSmith API + MCP vs LangWatch](https://www.anchorterminal.com/compare/langsmith-vs-langwatch.md)\n- [LangSmith API + MCP vs Navige](https://www.anchorterminal.com/compare/langsmith-vs-navige.md)\n- [LangWatch vs MLflow Tracing](https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing.md)\n- [LangWatch vs Prefactor](https://www.anchorterminal.com/compare/langwatch-vs-prefactor.md)\n- [LangWatch vs Pydantic Logfire](https://www.anchorterminal.com/compare/langwatch-vs-pydantic-logfire.md)\n- [LangWatch vs Respan API + MCP](https://www.anchorterminal.com/compare/langwatch-vs-respan.md)\n- [LangWatch vs W\u0026B Weave](https://www.anchorterminal.com/compare/langwatch-vs-wandb-weave.md)\n- [MLflow Tracing vs Navige](https://www.anchorterminal.com/compare/mlflow-tracing-vs-navige.md)\n- [Navige vs Prefactor](https://www.anchorterminal.com/compare/navige-vs-prefactor.md)\n- [Navige vs W\u0026B Weave](https://www.anchorterminal.com/compare/navige-vs-wandb-weave.md)\n- [DeepEval vs LangWatch](https://www.anchorterminal.com/compare/deepeval-vs-langwatch.md)\n- [Navige vs Pydantic Logfire](https://www.anchorterminal.com/compare/navige-vs-pydantic-logfire.md)\n- [Navige vs Respan API + MCP](https://www.anchorterminal.com/compare/navige-vs-respan.md)\n",
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