{ "data": { "a": { "slug": "honeyhive", "name": "HoneyHive", "vendor": "HoneyHive", "vendorUrl": "https://www.honeyhive.ai", "kind": "http-api", "category": "agent-observability", "summary": "Hosted tracing, evaluation, datasets and prompt management for agents, built on OpenTelemetry.", "url": "https://www.anchorterminal.com/tools/honeyhive", "markdownUrl": "https://www.anchorterminal.com/tools/honeyhive.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/honeyhive.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/honeyhive.json", "repo": "https://github.com/honeyhiveai/python-sdk", "license": "MIT (SDK, CLI and OpenAPI specs only, platform closed source)", "transports": [ "http" ], "remoteUrl": "https://api.dp1.us.honeyhive.ai", "packages": [ { "registry": "pypi", "name": "honeyhive" }, { "registry": "npm", "name": "honeyhive" } ], "auth": "api-key", "authNotes": "Bearer API keys in four types. Project keys (`hh_`) and read-only project keys (`hh_ro_`) for the data plane, ingestion keys (`hh_ingst_`) that can only send traces and events to one project, and fine-grained keys (`hh_fgcp_`) for the control plane, scoped to an organisation or workspace with chosen permissions and a required expiry of at most 365 days. Data plane at api.dp1.us.honeyhive.ai, control plane at api.cp.us.honeyhive.ai. Since 24 September 2026 invalid keys and permission failures return 404. Self-hosted deployments can use an OIDC identity provider.", "pricing": "freemium", "pricingNotes": "Free Developer plan with 10,000 events a month, up to 5 users and 30-day retention. An event is one trace span or one metric label. Enterprise is custom with unlimited users and workspaces, custom retention and self-hosting. No self-serve paid tier is published (https://www.honeyhive.ai/pricing).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 support in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 60, "pypiWeekly": 2105, "asOf": "2026-09-30" }, "docsUrl": "https://docs.honeyhive.ai", "llmsTxt": "https://docs.honeyhive.ai/llms.txt", "openapi": "https://raw.githubusercontent.com/honeyhiveai/honeyhive-openapi/main/data_plane_openapi.yaml", "capabilities": [ "obs.traces", "obs.evals", "obs.prompts", "obs.datasets" ], "tags": [ "hosted", "freemium", "llms-txt", "openapi", "python", "typescript", "closed-source", "enterprise", "self-hosted" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 55.9, "grade": "C", "agentReady": false, "rank": 310, "ranked": true, "rankOf": 452, "categoryRank": 7, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 63, "maintenance": 77, "payments": 20, "reliability": 44, "schema": 86, "security": 61, "transparency": 68 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -3, "negativeNotes": [ "2026-09-22 to 2026-09-24. The API stopped returning 401 for invalid, revoked or expired keys and 403 for permission failures, and now answers 404 for all of them, on every client version. It was announced in the CLI 1.7.0 changelog on 22 September and the product changelog on 24 September, with no deprecation window. -3 (https://github.com/honeyhiveai/honeyhive-cli/blob/main/CHANGELOG.md)" ], "verdict": "Read-only (`hh_ro_`), ingestion-only (`hh_ingst_`) and expiring fine-grained (`hh_fgcp_`) API keys. Status page showed 80.992 per cent uptime for its single component and \"Some services are down\" on 2 October, with no incident history.", "strengths": [ "Read-only (`hh_ro_`), ingestion-only (`hh_ingst_`) and expiring fine-grained (`hh_fgcp_`) API keys", "Public OpenAPI 3.1 specs for data plane and control plane under MIT, with an oasdiff-generated changelog", "CLI generated one to one from the specs, plus agent skills and Markdown docs", "Python SDK 1.6.1 and CLI 1.7.0 released in the last two weeks of September 2026", "Free plan with 30-day retention, 1,000 requests a minute and no card" ], "weaknesses": [ "Status page showed 80.992 per cent uptime for its single component and \"Some services are down\" on 2 October, with no incident history", "No MCP server for trace data, only a docs search MCP", "No self-serve paid tier, only Free and a sales-led Enterprise plan", "Since 24 September 2026 invalid keys and permission failures return 404, with no deprecation window", "Event search returns up to 1,000 rows by default with no field selection" ], "agentNotes": [ "Give the agent a read-only `hh_ro_` key for analysis and a separate `hh_ingst_` key for sending traces", "Treat a 404 as possibly a bad, revoked or expired key before assuming the record is missing", "Set `limit` on `POST /v1/events/search`. The default is 1,000 rows", "Use the CLI (`brew tap honeyhiveai/tap \u0026\u0026 brew install honeyhive`) from a coding agent. It maps one command to each API endpoint", "Control plane commands need an `hh_fgcp_` key and the control plane host api.cp.us.honeyhive.ai" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 55.9 } ], "editorialScores": { "ergonomics": 63, "maintenance": 77, "payments": 20, "reliability": 44, "schema": 86, "security": 61, "transparency": 54 }, "provenanceScore": 82 }, "connect": { "http": "curl https://api.dp1.us.honeyhive.ai/v1/datasets -H \"Authorization: Bearer $HH_API_KEY\"" }, "letme": { "capability": "https://letme.dev/obs.traces", "tool": "https://letme.dev/honeyhive" }, "area": "developer", "provenance": { "legalEntity": "HoneyHive Inc.", "domain": "honeyhive.ai", "domainRegistered": "2022-07-28", "endpointOnVendorDomain": true, "terms": "https://www.honeyhive.ai/legal/terms-of-service", "privacy": "https://www.honeyhive.ai/legal/privacy-policy", "statusPage": "https://status.honeyhive.ai", "changelog": "https://docs.honeyhive.ai/v2/changelog/product", "securityTxt": "none", "checked": "2026-09-30", "score": 82 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/honeyhive.json", "live": { "slug": "honeyhive", "probe": { "target": "https://api.dp1.us.honeyhive.ai", "method": "get", "lastAt": "2026-10-05T00:15:24.569344851Z", "lastOk": true, "lastStatus": 404, "lastMs": 449, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 447, "p95ms24h": 481, "samples24h": 272, "samples30d": 1105, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 3, "ok": 3 } ] }, "vendorStatus": { "page": "https://status.honeyhive.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:40:07.679425636Z" }, "versions": [ { "registry": "github", "name": "honeyhiveai/python-sdk", "version": "v1.6.1", "released": "2026-09-29", "seenAt": "2026-10-04T16:29:47.051274003Z" }, { "registry": "npm", "name": "honeyhive", "version": "1.0.45", "seenAt": "2026-10-04T16:29:46.131902271Z" }, { "registry": "pypi", "name": "honeyhive", "version": "1.6.1", "released": "2026-09-29", "seenAt": "2026-10-04T16:29:45.944378114Z" } ], "githubStars": 3, "npmWeekly": 115, "pypiWeekly": 2157, "securityTxt": { "url": "https://honeyhive.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:43.408713013Z" }, "llmsTxt": { "url": "https://docs.honeyhive.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:52.608156452Z" }, "domain": { "domain": "honeyhive.ai", "registered": "2022-07-28", "source": "https://rdap.identitydigital.services/rdap/domain/honeyhive.ai", "checkedAt": "2026-10-04T13:04:07.481546397Z" }, "pages": [ { "url": "https://docs.honeyhive.ai/v2/changelog/product", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:43:41.843601235Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "d1e93acad1c0" }, { "url": "https://www.honeyhive.ai/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:50:44.12758554Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "5861207b5e2f" }, { "url": "https://www.honeyhive.ai/legal/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:50:40.106324522Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "728d616153ce" }, { "url": "https://www.honeyhive.ai/legal/terms-of-service", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:50:42.132533735Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "68e3e45c1001" } ], "updatedAt": "2026-10-05T00:15:24.569344851Z" } }, "b": { "slug": "langfuse", "name": "Langfuse API + MCP", "vendor": "Langfuse (ClickHouse)", "vendorUrl": "https://langfuse.com", "kind": "http-api", "category": "agent-observability", "summary": "Open-source tracing, evaluation, prompt management and datasets for LLM apps and agents, built on OpenTelemetry.", "url": "https://www.anchorterminal.com/tools/langfuse", "markdownUrl": "https://www.anchorterminal.com/tools/langfuse.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/langfuse.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/langfuse.json", "repo": "https://github.com/langfuse/langfuse", "license": "MIT (core), commercial licence for the ee directories", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://cloud.langfuse.com/api/public", "packages": [ { "registry": "pypi", "name": "langfuse" }, { "registry": "npm", "name": "@langfuse/tracing" }, { "registry": "npm", "name": "@langfuse/client" } ], "auth": "api-key", "authNotes": "Project-scoped key pair (public `pk-lf-...`, secret `sk-lf-...`) sent as HTTP Basic auth, for both the REST API and the MCP server at `/api/public/mcp`. Organisation-level keys exist for SCIM and admin APIs on Enterprise.", "pricing": "freemium", "pricingNotes": "Cloud Hobby is free with 50,000 units a month, 30 days of data and 2 users, no card. Core $29 a month with 100,000 units and 90 days, Pro $199 a month with 3 years of data, Enterprise $2,499 a month. Extra units cost $8 per 100,000 on paid plans, lower with volume. A unit is one trace, observation or score. Teams add-on $300 a month for SSO and fine-grained RBAC. Self-hosted open source is free with unlimited usage, you pay for your own Postgres, ClickHouse, Redis and blob storage. Self-hosted Enterprise is custom and sold on top of a ClickHouse plan (https://langfuse.com/pricing).", "priceSummary": "$29 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 support in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 89, "popularity": { "githubStars": 35235, "npmWeekly": 3039593, "pypiWeekly": 5865664, "asOf": "2026-09-30" }, "docsUrl": "https://langfuse.com/docs", "llmsTxt": "https://langfuse.com/llms.txt", "openapi": "https://cloud.langfuse.com/generated/api/openapi.yml", "capabilities": [ "obs.traces", "obs.evals", "obs.prompts", "obs.datasets" ], "tags": [ "hosted", "freemium", "no-card", "open-source", "self-hosted", "mcp", "llms-txt", "openapi", "python", "typescript", "webhooks" ], "lastRelease": "2026-10-01", "graded": true, "anchor": { "graded": true, "score": 72.8, "grade": "BB", "agentReady": true, "rank": 66, "ranked": true, "rankOf": 452, "categoryRank": 2, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 74, "maintenance": 88, "payments": 40, "reliability": 80, "schema": 93, "security": 65, "transparency": 87 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "high", "date": "2026-10-01" }, "negative": -2, "negativeNotes": [ "2025-11-09 to 2026-01-21. Three moderate advisories, cross-organisation enumeration of member and invitation lists (GHSA-94hf-6gqq-pj69), SSO account takeover through CSRF or phishing (GHSA-w9pw-c549-5m6w) and an unauthenticated Slack OAuth install that could link Slack to any project (GHSA-pvq7-vvfj-p98x). All fixed and published, eight to eleven months old, so -2 (https://github.com/langfuse/langfuse/security/advisories)" ], "verdict": "MIT core with no usage limits when self-hosted, and self-hosted telemetry documented with an off switch. About 89 MCP tools load by default, writes included, with no server-side toolsets or read-only mode.", "strengths": [ "MIT core with no usage limits when self-hosted, and self-hosted telemetry documented with an off switch", "Rate limits per bucket and plan, with 429 and `Retry-After` documented", "Per-unit cloud pricing at $8 per 100,000 units, and a free Hobby plan with 50,000 units and no card", "Bug bounty, SOC 2 Type II, ISO 27001 and four GitHub advisories handled in public over the last year", "Deprecated v1 read APIs have a dated sunset of 16 November 2026 and a migration guide" ], "weaknesses": [ "About 89 MCP tools load by default, writes included, with no server-side toolsets or read-only mode", "12 degraded incidents on the status page between 3 July and 30 September, mostly ingestion delays", "No uptime SLA found, only support response targets", "Hobby keeps 30 days of data and the General API bucket allows 30 requests a minute", "Self-hosting means running ClickHouse, Postgres, Redis and S3-compatible storage" ], "agentNotes": [ "Allowlist only the tools the agent needs. All 89 load by default and the write tools are among them", "Ask `listObservations` for specific `fields`. Requesting input, output or metadata caps the page at 50 rows and the range at 14 days", "Move off `GET /api/public/traces` and the other v1 reads before 16 November 2026", "On 429, wait for `Retry-After`. MCP calls share the organisation's General API bucket", "Pick the regional host (cloud, us.cloud, jp.cloud, hipaa.cloud) that matches the project's keys" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "high", "grade": "BB", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 72.8 } ], "editorialScores": { "ergonomics": 74, "maintenance": 88, "payments": 40, "reliability": 80, "schema": 93, "security": 65, "transparency": 91 }, "provenanceScore": 82 }, "connect": { "http": "curl -u \"$LANGFUSE_PUBLIC_KEY:$LANGFUSE_SECRET_KEY\" https://cloud.langfuse.com/api/public/projects", "claudeCode": "claude mcp add --transport http langfuse https://cloud.langfuse.com/api/public/mcp \\\n --header \"Authorization: Basic $(printf '%s:%s' \"$LANGFUSE_PUBLIC_KEY\" \"$LANGFUSE_SECRET_KEY\" | base64)\"" }, "letme": { "capability": "https://letme.dev/obs.traces", "tool": "https://letme.dev/langfuse" }, "area": "developer", "unitPrices": [ { "item": "Core plan", "unit": "month", "usd": 29, "note": "100,000 units included, 90 days of data" }, { "item": "Pro plan", "unit": "month", "usd": 199, "note": "100,000 units included, 3 years of data" }, { "item": "Enterprise plan", "unit": "month", "usd": 2499, "note": "100,000 units included, audit logs, SCIM, SLAs" }, { "item": "Teams add-on", "unit": "month", "usd": 300, "note": "SSO, SSO enforcement and fine-grained RBAC on Pro" } ], "provenance": { "legalEntity": "Langfuse GmbH (a ClickHouse, Inc. company)", "domain": "langfuse.com", "domainRegistered": "2023-04-20", "endpointOnVendorDomain": true, "terms": "https://clickhouse.com/legal/clickhouse-general-terms-and-conditions", "privacy": "https://langfuse.com/privacy", "statusPage": "https://status.langfuse.com", "changelog": "https://langfuse.com/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The imprint names Langfuse GmbH in Berlin. The privacy notice is issued by ClickHouse, Inc. and langfuse.com/terms redirects to the ClickHouse general terms" ], "score": 82 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/langfuse.json", "live": { "slug": "langfuse", "probe": { "target": "https://cloud.langfuse.com/api/public", "method": "get", "lastAt": "2026-10-05T00:15:25.426755448Z", "lastOk": true, "lastStatus": 404, "lastMs": 48, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 53, "p95ms24h": 90, "samples24h": 272, "samples30d": 1105, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 3, "ok": 3 } ] }, "vendorStatus": { "page": "https://status.langfuse.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-05T00:11:24.510073267Z" }, "versions": [ { "registry": "github", "name": "langfuse/langfuse", "version": "v4.50.0", "released": "2026-10-02", "seenAt": "2026-10-04T16:31:18.139005808Z" }, { "registry": "npm", "name": "@langfuse/client", "version": "5.11.1", "seenAt": "2026-10-04T16:31:16.823169285Z" }, { "registry": "npm", "name": "@langfuse/tracing", "version": "5.11.1", "seenAt": "2026-10-04T16:31:15.89253951Z" }, { "registry": "pypi", "name": "langfuse", "version": "4.16.0", "released": "2026-09-30", "seenAt": "2026-10-04T16:31:15.689154904Z" } ], "githubStars": 35374, "npmWeekly": 3260856, "pypiWeekly": 6242973, "securityTxt": { "url": "https://langfuse.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:59.271988313Z" }, "llmsTxt": { "url": "https://langfuse.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:55.905804251Z" }, "domain": { "domain": "langfuse.com", "registered": "2023-04-20", "source": "https://rdap.verisign.com/com/v1/domain/langfuse.com", "checkedAt": "2026-10-04T13:09:17.712369699Z" }, "pages": [ { "url": "https://langfuse.com/changelog", "kind": "changelog", "status": 404, "checkedAt": "2026-10-04T15:45:22.907270008Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://langfuse.com/blog/joining-clickhouse", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-04T15:45:20.82840104Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "4e8ff98bb557" }, { "url": "https://langfuse.com/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:45:25.072991864Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "fa6797a4f9e7" }, { "url": "https://langfuse.com/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:45:26.884030862Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9e1e582ef9a9" }, { "url": "https://clickhouse.com/legal/clickhouse-general-terms-and-conditions", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:41:50.81939355Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "892d76cd652d" } ], "updatedAt": "2026-10-05T00:15:25.426755448Z" } }, "summary": "Langfuse API + MCP has a score of 72.8 (BB) against HoneyHive's 55.9 (C). Both do obs traces. The largest gap is reliability, 36 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/honeyhive-vs-langfuse", "json": "https://www.anchorterminal.com/compare/honeyhive-vs-langfuse.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/honeyhive-vs-langfuse.md", "slim": "https://www.anchorterminal.com/compare/honeyhive-vs-langfuse.min.md" }, "markdown": "Langfuse API + MCP has a score of 72.8 (BB) against HoneyHive's 55.9 (C). Both do obs traces. The largest gap is reliability, 36 points.\n\n- HoneyHive: grade C, 55.9/100, rank #310 of 452. Markdown https://www.anchorterminal.com/tools/honeyhive.md · JSON https://www.anchorterminal.com/api/v1/tools/honeyhive.json\n- Langfuse API + MCP: grade BB, 72.8/100, rank #66 of 452. Markdown https://www.anchorterminal.com/tools/langfuse.md · JSON https://www.anchorterminal.com/api/v1/tools/langfuse.json\n\n## Which one, for what\n\nPick HoneyHive for nothing in particular (no category where it leads by five points or more).\n\nPick Langfuse API + MCP for reliability (+36), schema \u0026 documentation (+7), agent ergonomics (+11), payments \u0026 pricing (+20), maintenance \u0026 community (+11), transparency \u0026 trust (+19).\n\n## Score by category\n\n| Category | Weight | HoneyHive | Langfuse API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 44 | 80 | Langfuse API + MCP +36 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 86 | 93 | Langfuse API + MCP +7 |\n| Agent ergonomics | 13% (16.2 this run) | 63 | 74 | Langfuse API + MCP +11 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 65 | Langfuse API + MCP +4 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Langfuse API + MCP +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 77 | 88 | Langfuse API + MCP +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 68 | 87 | Langfuse API + MCP +19 |\n| Negative events | ≤15 | -3 | -2 | |\n| **Total** | | **55.9 · C** | **72.8 · BB** | |\n\n## Facts side by side\n\n| Fact | HoneyHive | Langfuse API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | HoneyHive | Langfuse (ClickHouse) |\n| Hosted endpoint | `https://api.dp1.us.honeyhive.ai` | `https://cloud.langfuse.com/api/public` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | MIT (SDK, CLI and OpenAPI specs only, platform closed source) | MIT (core), commercial licence for the ee directories |\n| Tools exposed | none | 89 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-29 | 2026-10-01 |\n| Popularity | 60 npm/wk, 2.1k PyPI/wk | 35k stars, 3M npm/wk, 5.9M PyPI/wk |\n| Agent reviews | 2.5/5 (2) | 4/5 (2) |\n\n## Verdicts\n\n**HoneyHive.** Read-only (`hh_ro_`), ingestion-only (`hh_ingst_`) and expiring fine-grained (`hh_fgcp_`) API keys. Status page showed 80.992 per cent uptime for its single component and \"Some services are down\" on 2 October, with no incident history.\n\n**Langfuse API + MCP.** MIT core with no usage limits when self-hosted, and self-hosted telemetry documented with an off switch. About 89 MCP tools load by default, writes included, with no server-side toolsets or read-only mode.\n\n## Before you call either\n\n### HoneyHive\n\n1. Give the agent a read-only `hh_ro_` key for analysis and a separate `hh_ingst_` key for sending traces\n2. Treat a 404 as possibly a bad, revoked or expired key before assuming the record is missing\n3. Set `limit` on `POST /v1/events/search`. The default is 1,000 rows\n4. Use the CLI (`brew tap honeyhiveai/tap \u0026\u0026 brew install honeyhive`) from a coding agent. It maps one command to each API endpoint\n5. Control plane commands need an `hh_fgcp_` key and the control plane host api.cp.us.honeyhive.ai\n\n### Langfuse API + MCP\n\n1. Allowlist only the tools the agent needs. All 89 load by default and the write tools are among them\n2. Ask `listObservations` for specific `fields`. Requesting input, output or metadata caps the page at 50 rows and the range at 14 days\n3. Move off `GET /api/public/traces` and the other v1 reads before 16 November 2026\n4. On 429, wait for `Retry-After`. MCP calls share the organisation's General API bucket\n5. Pick the regional host (cloud, us.cloud, jp.cloud, hipaa.cloud) that matches the project's keys\n\n## Other comparisons with HoneyHive or Langfuse API + MCP\n\n- [Arize Phoenix vs HoneyHive](https://www.anchorterminal.com/compare/arize-phoenix-vs-honeyhive.md)\n- [Arize Phoenix vs Langfuse API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-langfuse.md)\n- [Baserun vs HoneyHive](https://www.anchorterminal.com/compare/baserun-vs-honeyhive.md)\n- [Baserun vs Langfuse API + MCP](https://www.anchorterminal.com/compare/baserun-vs-langfuse.md)\n- [Braintrust API + MCP vs HoneyHive](https://www.anchorterminal.com/compare/braintrust-vs-honeyhive.md)\n- [Braintrust API + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/braintrust-vs-langfuse.md)\n- [Galileo API + MCP vs HoneyHive](https://www.anchorterminal.com/compare/galileo-vs-honeyhive.md)\n- [Galileo API + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/galileo-vs-langfuse.md)\n- [Helicone AI Gateway + MCP vs HoneyHive](https://www.anchorterminal.com/compare/helicone-vs-honeyhive.md)\n- [Helicone AI Gateway + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/helicone-vs-langfuse.md)\n- [HoneyHive vs Laminar API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-laminar.md)\n- [HoneyHive vs LangSmith API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-langsmith.md)\n- [HoneyHive vs Respan API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-respan.md)\n- [Laminar API + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/laminar-vs-langfuse.md)\n- [Langfuse API + MCP vs LangSmith API + MCP](https://www.anchorterminal.com/compare/langfuse-vs-langsmith.md)\n- [Langfuse API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/langfuse-vs-respan.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "HoneyHive vs Langfuse API + MCP", "url": "" } ], "description": "Langfuse API + MCP has a score of 72.8 (BB) against HoneyHive's 55.9 (C). Both do obs traces. The largest gap is reliability, 36 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "HoneyHive C 55.9", "Langfuse API + MCP BB 72.8", "scores" ], "h1": "HoneyHive vs Langfuse API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-honeyhive-vs-langfuse.png", "path": "/compare/honeyhive-vs-langfuse", "published": "2026-10-01", "section": "tools", "title": "HoneyHive vs Langfuse API + MCP for AI agents, C 55.9 vs BB 72.8", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/honeyhive-vs-langfuse" }, "tokens": { "markdown": 1650, "slim": 330 }, "version": 1 }