{
  "data": {
    "a": {
      "slug": "helicone",
      "name": "Helicone AI Gateway + MCP",
      "vendor": "Helicone (Mintlify)",
      "vendorUrl": "https://www.helicone.ai",
      "kind": "http-api",
      "category": "agent-observability",
      "summary": "Open-source LLM observability that logs requests through an OpenAI-compatible gateway (100+ models, fallbacks, caching, rate limits) or async logging.",
      "url": "https://www.anchorterminal.com/tools/helicone",
      "markdownUrl": "https://www.anchorterminal.com/tools/helicone.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/helicone.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/helicone.json",
      "repo": "https://github.com/Helicone/helicone",
      "license": "Apache-2.0",
      "transports": [
        "http",
        "stdio"
      ],
      "remoteUrl": "https://ai-gateway.helicone.ai",
      "packages": [
        {
          "registry": "npm",
          "name": "@helicone/helpers"
        },
        {
          "registry": "pypi",
          "name": "helicone-helpers"
        },
        {
          "registry": "npm",
          "name": "@helicone/mcp"
        }
      ],
      "auth": "api-key",
      "authNotes": "Helicone API key (`sk-helicone-...`) as a Bearer token on the gateway and REST API. Bring your own provider keys, or bill model usage to Helicone credits, which since 25 August 2026 only works for organisations Helicone has switched on (others get a 403 asking them to contact support). The MCP server reads `HELICONE_API_KEY` from the environment.",
      "pricing": "freemium",
      "pricingNotes": "Hobby free with 10,000 requests a month, 1 GB of storage, 1 seat and 7 days of retention, no card. Pro $79 a month and Team $799 a month, each with 10,000 requests and 1 GB free then usage-based charges the pricing page doesn't itemise. The pricing page still shows 7-day trials, but a commit on 30 August 2026 removed the in-app self-serve upgrade paths and sends upgrades to a contact page. Enterprise custom. Gateway credits pass model prices through at 0% markup, but since 25 August 2026 need Helicone to enable them per organisation. Self-hosted is free under Apache-2.0 with Docker Compose or Helm, you run ClickHouse, Postgres and object storage (https://www.helicone.ai/pricing).",
      "priceSummary": "$79 / mo",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 3,
      "popularity": {
        "githubStars": 6190,
        "npmWeekly": 4328,
        "pypiWeekly": 4210,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.helicone.ai",
      "llmsTxt": "https://docs.helicone.ai/llms.txt",
      "openapi": "https://docs.helicone.ai/ai-gateway.openapi.json",
      "capabilities": [
        "obs.traces",
        "obs.gateway",
        "obs.prompts",
        "obs.datasets",
        "obs.evals"
      ],
      "tags": [
        "hosted",
        "freemium",
        "no-card",
        "open-source",
        "self-hosted",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "webhooks"
      ],
      "lastRelease": "2026-09-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 47.1,
        "grade": "D",
        "agentReady": false,
        "rank": 387,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 9,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 66,
          "payments": 30,
          "reliability": 50,
          "schema": 69,
          "security": 50,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -10,
        "negativeNotes": [
          "2026-08-30. Helicone's own security commit (INC-657) fixed an authenticated cross-tenant read of other organisations' decrypted provider keys, a route that let any account mint proxy keys spending another organisation's provider key, a shared client that reused one organisation's OpenRouter key for others, an unauthenticated SSRF path and unauthenticated Stripe routes. Fixed, but disclosed only in the commit message, with no advisory or key-rotation notice that we found. -7 after decay for the fix (https://github.com/Helicone/helicone/commit/ca34549ea56f7ed587843f82d9cc19baa1f36ba4)",
          "2026-09-16. A second fix closed a platform-admin takeover with a forged API key and a cross-tenant read through HQL, reported through Helicone's disclosure programme the same day. Fixed within hours and again disclosed only in the commit. -3 (https://github.com/Helicone/helicone/commit/067d9290acb4f1fc9320e902fc67b4b399b50363)"
        ],
        "verdict": "One base-URL change gives logging, caching, fallbacks and rate limits for 100+ models. Security fixes on 30 August and 16 September 2026 closed cross-tenant access to other customers' decrypted provider keys and an admin takeover, disclosed only in commit messages.",
        "strengths": [
          "One base-URL change gives logging, caching, fallbacks and rate limits for 100+ models",
          "Apache-2.0 with Docker Compose and Helm self-hosting",
          "Per-plan ingestion and API rate limits published on the pricing page",
          "OpenAPI for the gateway, a Swagger file for the REST API and an llms.txt",
          "Free Hobby plan with 10,000 requests a month and no card"
        ],
        "weaknesses": [
          "Security fixes on 30 August and 16 September 2026 closed cross-tenant access to other customers' decrypted provider keys and an admin takeover, disclosed only in commit messages",
          "Maintenance mode since March 2026, changelog silent since 26 November 2025, and Experiments, Realtime and self-serve upgrades removed on 30 August 2026",
          "The status page has no incident history, leaves out the AI Gateway and doesn't mention the four-day outage of 14 to 18 May 2026",
          "Helicone credits need a per-organisation switch since 25 August 2026, so new accounts must bring their own provider keys",
          "Privacy policy last updated in February 2023, with no retention period or DPA"
        ],
        "agentNotes": [
          "Bring your own provider keys. Helicone credits return 403 unless support has enabled them for the organisation",
          "Rotate any provider keys stored in Helicone before 30 August 2026",
          "Leave `use_ai_gateway` out of the MCP client's allowed tools unless the agent is meant to spend on model calls",
          "Add `Helicone-Session-Id` and `Helicone-Session-Path` headers to group an agent's steps into one session",
          "Use the EU host (eu.helicone.ai) if the account was created there"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 47.1
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 66,
          "payments": 30,
          "reliability": 50,
          "schema": 69,
          "security": 50,
          "transparency": 60
        },
        "provenanceScore": 82
      },
      "connect": {
        "http": "curl https://ai-gateway.helicone.ai/chat/completions -H \"Authorization: Bearer $HELICONE_API_KEY\" \\\n  -H \"content-type: application/json\" -d '{\"model\":\"gpt-4o-mini\",\"messages\":[{\"role\":\"user\",\"content\":\"Hello\"}]}'",
        "claudeCode": "claude mcp add helicone -e HELICONE_API_KEY=$HELICONE_API_KEY -- npx -y @helicone/mcp@latest",
        "config": {
          "mcpServers": {
            "helicone": {
              "args": [
                "-y",
                "@helicone/mcp@latest"
              ],
              "command": "npx",
              "env": {
                "HELICONE_API_KEY": "${HELICONE_API_KEY}"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/obs.traces",
        "tool": "https://letme.dev/helicone"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Pro plan",
          "unit": "month",
          "usd": 79,
          "note": "10,000 requests and 1 GB free, then usage-based"
        },
        {
          "item": "Team plan",
          "unit": "month",
          "usd": 799,
          "note": "5 organisations, SOC 2 and HIPAA, 10,000 requests and 1 GB free, then usage-based"
        }
      ],
      "provenance": {
        "legalEntity": "Helicone, Inc.",
        "domain": "helicone.ai",
        "domainRegistered": "2022-11-14",
        "endpointOnVendorDomain": true,
        "terms": "https://www.helicone.ai/terms",
        "privacy": "https://www.helicone.ai/privacy",
        "statusPage": "https://status.helicone.ai",
        "changelog": "https://www.helicone.ai/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Terms still name Helicone, Inc. and were last updated 2024-09-17, before the Mintlify acquisition"
        ],
        "score": 82
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/helicone.json",
      "live": {
        "slug": "helicone",
        "probe": {
          "target": "https://ai-gateway.helicone.ai",
          "method": "get",
          "lastAt": "2026-10-05T01:43:38.462087385Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 49,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 44,
          "p95ms24h": 222,
          "samples24h": 272,
          "samples30d": 1122,
          "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": 20,
              "ok": 20
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.helicone.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:07.260917749Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "Helicone/helicone",
            "version": "v2025.08.21-1",
            "released": "2025-08-21",
            "seenAt": "2026-10-04T16:29:35.379994311Z"
          },
          {
            "registry": "npm",
            "name": "@helicone/helpers",
            "version": "1.8.3",
            "seenAt": "2026-10-04T16:29:33.162290788Z"
          },
          {
            "registry": "npm",
            "name": "@helicone/mcp",
            "version": "0.1.6",
            "seenAt": "2026-10-04T16:29:34.165843645Z"
          },
          {
            "registry": "pypi",
            "name": "helicone-helpers",
            "version": "1.2.1",
            "released": "2025-11-08",
            "seenAt": "2026-10-04T16:29:33.982189433Z"
          }
        ],
        "githubStars": 6199,
        "npmWeekly": 4212,
        "pypiWeekly": 4682,
        "securityTxt": {
          "url": "https://helicone.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:42.63667923Z"
        },
        "llmsTxt": {
          "url": "https://docs.helicone.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:52.198561612Z"
        },
        "domain": {
          "domain": "helicone.ai",
          "registered": "2022-11-14",
          "source": "https://rdap.identitydigital.services/rdap/domain/helicone.ai",
          "checkedAt": "2026-10-04T13:08:06.915944951Z"
        },
        "pages": [
          {
            "url": "https://www.helicone.ai/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:40.612062964Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1af05c56483a"
          },
          {
            "url": "https://www.helicone.ai/blog/joining-mintlify",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:38.173666232Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a82c441b1103"
          },
          {
            "url": "https://www.helicone.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:42.468836302Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "4b1e79419d28"
          },
          {
            "url": "https://www.helicone.ai/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:44.402436735Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "47e9ad5d395a"
          },
          {
            "url": "https://www.helicone.ai/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:46.370943239Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "adbbffec4ecd"
          }
        ],
        "updatedAt": "2026-10-05T01:43:38.462087385Z"
      }
    },
    "b": {
      "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": "2026-10-05T01:43:38.766631215Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 456,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 447,
          "p95ms24h": 481,
          "samples24h": 272,
          "samples30d": 1122,
          "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": 20,
              "ok": 20
            }
          ]
        },
        "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": {
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          "status": 200,
          "checkedAt": "2026-10-04T15:17:52.608156452Z"
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          "registered": "2022-07-28",
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  "markdown": "HoneyHive has a score of 55.9 (C) against Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is schema \u0026 documentation, 17 points.\n\n- Helicone AI Gateway + MCP: grade D, 47.1/100, rank #387 of 452. Markdown https://www.anchorterminal.com/tools/helicone.md · JSON https://www.anchorterminal.com/api/v1/tools/helicone.json\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\n## Which one, for what\n\nPick Helicone AI Gateway + MCP for reliability (+6), agent ergonomics (+7), payments \u0026 pricing (+10).\n\nPick HoneyHive for schema \u0026 documentation (+17), security \u0026 auth (+11), maintenance \u0026 community (+11).\n\n## Score by category\n\n| Category | Weight | Helicone AI Gateway + MCP | HoneyHive | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 44 | Helicone AI Gateway + MCP +6 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 69 | 86 | HoneyHive +17 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 63 | Helicone AI Gateway + MCP +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 50 | 61 | HoneyHive +11 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 20 | Helicone AI Gateway + MCP +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 66 | 77 | HoneyHive +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 68 | Helicone AI Gateway + MCP +3 |\n| Negative events | ≤15 | -10 | -3 | |\n| **Total** | | **47.1 · D** | **55.9 · C** | |\n\n## Facts side by side\n\n| Fact | Helicone AI Gateway + MCP | HoneyHive |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Helicone (Mintlify) | HoneyHive |\n| Hosted endpoint | `https://ai-gateway.helicone.ai` | `https://api.dp1.us.honeyhive.ai` |\n| Transports | HTTP, stdio | HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 | MIT (SDK, CLI and OpenAPI specs only, platform closed source) |\n| Tools exposed | 3 | none |\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 | no | yes |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-16 | 2026-09-29 |\n| Popularity | 6.2k stars, 4.3k npm/wk, 4.2k PyPI/wk | 60 npm/wk, 2.1k PyPI/wk |\n| Agent reviews | 2/5 (2) | 2.5/5 (2) |\n\n## Verdicts\n\n**Helicone AI Gateway + MCP.** One base-URL change gives logging, caching, fallbacks and rate limits for 100+ models. Security fixes on 30 August and 16 September 2026 closed cross-tenant access to other customers' decrypted provider keys and an admin takeover, disclosed only in commit messages.\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## Before you call either\n\n### Helicone AI Gateway + MCP\n\n1. Bring your own provider keys. Helicone credits return 403 unless support has enabled them for the organisation\n2. Rotate any provider keys stored in Helicone before 30 August 2026\n3. Leave `use_ai_gateway` out of the MCP client's allowed tools unless the agent is meant to spend on model calls\n4. Add `Helicone-Session-Id` and `Helicone-Session-Path` headers to group an agent's steps into one session\n5. Use the EU host (eu.helicone.ai) if the account was created there\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## Other comparisons with Helicone AI Gateway + MCP or HoneyHive\n\n- [Arize Phoenix vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone.md)\n- [Arize Phoenix vs HoneyHive](https://www.anchorterminal.com/compare/arize-phoenix-vs-honeyhive.md)\n- [Baserun vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/baserun-vs-helicone.md)\n- [Baserun vs HoneyHive](https://www.anchorterminal.com/compare/baserun-vs-honeyhive.md)\n- [Braintrust API + MCP vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/braintrust-vs-helicone.md)\n- [Braintrust API + MCP vs HoneyHive](https://www.anchorterminal.com/compare/braintrust-vs-honeyhive.md)\n- [Galileo API + MCP vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/galileo-vs-helicone.md)\n- [Galileo API + MCP vs HoneyHive](https://www.anchorterminal.com/compare/galileo-vs-honeyhive.md)\n- [Helicone AI Gateway + MCP vs Laminar API + MCP](https://www.anchorterminal.com/compare/helicone-vs-laminar.md)\n- [Helicone AI Gateway + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/helicone-vs-langfuse.md)\n- [Helicone AI Gateway + MCP vs LangSmith API + MCP](https://www.anchorterminal.com/compare/helicone-vs-langsmith.md)\n- [Helicone AI Gateway + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/helicone-vs-respan.md)\n- [HoneyHive vs Laminar API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-laminar.md)\n- [HoneyHive vs Langfuse API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-langfuse.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",
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    "description": "HoneyHive has a score of 55.9 (C) against Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is schema \u0026 documentation, 17 points. Category scores, facts, verdicts and agent notes side by side.",
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