{
  "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": "2026-10-04T23:32:48.240405816Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 40,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 44,
          "p95ms24h": 222,
          "samples24h": 272,
          "samples30d": 1097,
          "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": 267,
              "ok": 267
            }
          ]
        },
        "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": "2026-10-04T23:32:48.240405816Z"
      }
    },
    "b": {
      "slug": "laminar",
      "name": "Laminar API + MCP",
      "vendor": "Laminar (LMNR AI)",
      "vendorUrl": "https://laminar.sh",
      "kind": "http-api",
      "category": "agent-observability",
      "summary": "Open-source tracing, evaluations and an agent debugger built on OpenTelemetry, with browser session recordings synced to traces for browser agents.",
      "url": "https://www.anchorterminal.com/tools/laminar",
      "markdownUrl": "https://www.anchorterminal.com/tools/laminar.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/laminar.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/laminar.json",
      "repo": "https://github.com/lmnr-ai/lmnr",
      "license": "Apache-2.0",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.lmnr.ai/v1",
      "packages": [
        {
          "registry": "pypi",
          "name": "lmnr"
        },
        {
          "registry": "npm",
          "name": "@lmnr-ai/lmnr"
        }
      ],
      "auth": "api-key",
      "authNotes": "Project API key as a Bearer token, for ingestion, the REST API and the MCP server. One key maps to one project.",
      "pricing": "freemium",
      "pricingNotes": "Free $0 a month with 1 GB of data, 7 days of retention, 1 project and 1 seat, no overage. Starter $30 a month with 3 GB then $2 a GB, 30 days, unlimited projects and seats. Pro $150 a month with 10 GB then $1.50 a GB, 6 months. Enterprise custom with on-premise. Signals (LLM analysis of traces) comes with $2.50, $7.50 or $25 of credit, then $0.05 per million input tokens and $0.35 per million output tokens. Self-hosted open source is free, you run Postgres, ClickHouse and Quickwit yourself. Signals and Slack alerts on self-hosted need an enterprise licence key (https://laminar.sh/pricing).",
      "priceSummary": "$30 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 3,
      "popularity": {
        "githubStars": 3288,
        "npmWeekly": 79857,
        "pypiWeekly": 1698863,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://laminar.sh/docs",
      "llmsTxt": "https://laminar.sh/docs/llms.txt",
      "openapi": "https://laminar.sh/docs/openapi/openapi.yaml",
      "capabilities": [
        "obs.traces",
        "obs.evals",
        "obs.datasets"
      ],
      "tags": [
        "hosted",
        "freemium",
        "open-source",
        "self-hosted",
        "mcp",
        "llms-txt",
        "openapi",
        "python",
        "typescript"
      ],
      "lastRelease": "2026-09-23",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57,
        "grade": "C",
        "agentReady": false,
        "rank": 298,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 6,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 80,
          "maintenance": 83,
          "payments": 30,
          "reliability": 50,
          "schema": 88,
          "security": 45,
          "transparency": 66
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -5,
        "negativeNotes": [
          "2026-08-27. Laminar's own fix says a client-supplied `projectId` in the body of the SQL export-job route overrode the one the server had authorised, allowing cross-tenant SQL execution and bulk data export (CWE-862). The route dates from July 2025. Fixed with a one-line change, disclosed only in the commit message with no advisory or customer notice we could find. -5 after decay for the fix (https://github.com/lmnr-ai/lmnr/commit/5059c7d951fe47d4c91c8016a542a11e82090ade)"
        ],
        "verdict": "Browser session recordings can be matched to agent traces. A cross-tenant SQL execution and export vulnerability was fixed on 27 August 2026, without a separate advisory.",
        "strengths": [
          "Browser session recordings synced to traces for Browser Use, Stagehand, Playwright and Puppeteer",
          "Three MCP tools with descriptions that say when to use each, and SQL that runs SELECT-only on a read-only client",
          "Apache-2.0 with Docker Compose and Helm self-hosting, and self-hosted telemetry that switches off with one variable",
          "Priced by GB stored, $2 a GB on Starter and $1.50 on Pro, published without login",
          "SDK releases most weeks, TypeScript 0.8.49 on 2026-09-23 and Python 0.7.64 on 2026-09-21"
        ],
        "weaknesses": [
          "A cross-tenant SQL execution and export hole was fixed on 27 August 2026 in a commit, with no advisory",
          "No SECURITY.md, security.txt or published advisories",
          "Rate limits exist per project but no numbers are published",
          "Status page covers only the homepage and an echo probe",
          "Signals, clusters and Slack or email alerts aren't in the open-source build"
        ],
        "agentNotes": [
          "Use `query_laminar_sql` to find trace IDs, then `get_trace_context` for a compact summary of one run",
          "Always add a time range and `LIMIT` to SQL. Server caps on time, memory and result size reject wide scans",
          "On 429 from the SQL API, back off. The per-project limit isn't published",
          "Set `flush_by_size` when spans carry whole conversation histories, or large batches get rejected",
          "Keep the project API key in a header, not in the URL"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 57
          }
        ],
        "editorialScores": {
          "ergonomics": 80,
          "maintenance": 83,
          "payments": 30,
          "reliability": 50,
          "schema": 88,
          "security": 45,
          "transparency": 57
        },
        "provenanceScore": 75
      },
      "connect": {
        "http": "curl https://api.lmnr.ai/v1/project -H \"Authorization: Bearer $LMNR_PROJECT_API_KEY\"",
        "claudeCode": "claude mcp add --transport http laminar https://api.lmnr.ai/v1/mcp \\\n  --header \"Authorization: Bearer $LMNR_PROJECT_API_KEY\""
      },
      "letme": {
        "capability": "https://letme.dev/obs.traces",
        "tool": "https://letme.dev/laminar"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Starter plan",
          "unit": "month",
          "usd": 30,
          "note": "3 GB of data, 30 days retention, unlimited seats"
        },
        {
          "item": "Pro plan",
          "unit": "month",
          "usd": 150,
          "note": "10 GB of data, 6 months retention"
        },
        {
          "item": "Extra data on Starter",
          "unit": "gb",
          "usd": 2
        },
        {
          "item": "Extra data on Pro",
          "unit": "gb",
          "usd": 1.5
        }
      ],
      "provenance": {
        "legalEntity": "LMNR AI, Inc.",
        "domain": "laminar.sh",
        "domainRegistered": "",
        "domainNote": "The .sh registry has no RDAP service. The former domain lmnr.ai, registered 2024-02-26, now redirects to laminar.sh and still serves the API.",
        "endpointOnVendorDomain": true,
        "terms": "https://laminar.sh/policies/terms",
        "privacy": "https://laminar.sh/policies/privacy",
        "statusPage": "https://status.laminar.sh",
        "changelog": "https://laminar.sh/docs/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "score": 75
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/laminar.json",
      "live": {
        "slug": "laminar",
        "probe": {
          "target": "https://api.lmnr.ai/v1",
          "method": "get",
          "lastAt": "2026-10-04T23:32:49.413616987Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 258,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 260,
          "p95ms24h": 332,
          "samples24h": 272,
          "samples30d": 1097,
          "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": 267,
              "ok": 267
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.laminar.sh",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:11.503101655Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "lmnr-ai/lmnr",
            "version": "v0.2.5",
            "released": "2026-09-13",
            "seenAt": "2026-10-04T16:31:08.795419199Z"
          },
          {
            "registry": "npm",
            "name": "@lmnr-ai/lmnr",
            "version": "0.8.49",
            "seenAt": "2026-10-04T16:31:07.940881866Z"
          },
          {
            "registry": "pypi",
            "name": "lmnr",
            "version": "0.7.64",
            "released": "2026-09-21",
            "seenAt": "2026-10-04T16:31:07.750015301Z"
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        "githubStars": 3297,
        "npmWeekly": 87009,
        "pypiWeekly": 1994427,
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          "state": "none",
          "checkedAt": "2026-10-04T15:15:42.001487057Z"
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        "llmsTxt": {
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          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:55.609508329Z"
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        "domain": {
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          "checkedAt": "2026-10-04T13:08:33.087077121Z"
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        "pages": [
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            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:45:16.56490294Z",
            "changedAt": "2026-10-03T15:33:21.857290455Z",
            "fingerprint": "26ea3af58e20"
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          {
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            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:45:22.900150315Z",
            "changedAt": "2026-10-03T15:33:28.075146176Z",
            "fingerprint": "97b56e4f6b09"
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            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:45:19.093421142Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "9cf47952b952"
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            "url": "https://laminar.sh/policies/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:45:20.742564071Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "30d7a2d7eb44"
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        "updatedAt": "2026-10-04T23:32:49.413616987Z"
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  "markdown": "Laminar API + MCP has a score of 57 (C) against Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is schema \u0026 documentation, 19 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- Laminar API + MCP: grade C, 57/100, rank #298 of 452. Markdown https://www.anchorterminal.com/tools/laminar.md · JSON https://www.anchorterminal.com/api/v1/tools/laminar.json\n\n## Which one, for what\n\nPick Helicone AI Gateway + MCP for security \u0026 auth (+5), transparency \u0026 trust (+5).\n\nPick Laminar API + MCP for schema \u0026 documentation (+19), agent ergonomics (+10), maintenance \u0026 community (+17).\n\n## Score by category\n\n| Category | Weight | Helicone AI Gateway + MCP | Laminar API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 50 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 69 | 88 | Laminar API + MCP +19 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 80 | Laminar API + MCP +10 |\n| Security \u0026 auth | 14% (17.5 this run) | 50 | 45 | Helicone AI Gateway + MCP +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 30 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 66 | 83 | Laminar API + MCP +17 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 66 | Helicone AI Gateway + MCP +5 |\n| Negative events | ≤15 | -10 | -5 | |\n| **Total** | | **47.1 · D** | **57 · C** | |\n\n## Facts side by side\n\n| Fact | Helicone AI Gateway + MCP | Laminar API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Helicone (Mintlify) | Laminar (LMNR AI) |\n| Hosted endpoint | `https://ai-gateway.helicone.ai` | `https://api.lmnr.ai/v1` |\n| Transports | HTTP, stdio | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 | Apache-2.0 |\n| Tools exposed | 3 | 3 |\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 | 2026-09-23 |\n| Popularity | 6.2k stars, 4.3k npm/wk, 4.2k PyPI/wk | 3.3k stars, 80k npm/wk, 1.7M PyPI/wk |\n| Agent reviews | 2/5 (2) | 3.5/5 (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**Laminar API + MCP.** Browser session recordings can be matched to agent traces. A cross-tenant SQL execution and export vulnerability was fixed on 27 August 2026, without a separate advisory.\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### Laminar API + MCP\n\n1. Use `query_laminar_sql` to find trace IDs, then `get_trace_context` for a compact summary of one run\n2. Always add a time range and `LIMIT` to SQL. Server caps on time, memory and result size reject wide scans\n3. On 429 from the SQL API, back off. The per-project limit isn't published\n4. Set `flush_by_size` when spans carry whole conversation histories, or large batches get rejected\n5. Keep the project API key in a header, not in the URL\n\n## Other comparisons with Helicone AI Gateway + MCP or Laminar API + MCP\n\n- [Arize Phoenix vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone.md)\n- [Arize Phoenix vs Laminar API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-laminar.md)\n- [Baserun vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/baserun-vs-helicone.md)\n- [Baserun vs Laminar API + MCP](https://www.anchorterminal.com/compare/baserun-vs-laminar.md)\n- [Braintrust API + MCP vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/braintrust-vs-helicone.md)\n- [Braintrust API + MCP vs Laminar API + MCP](https://www.anchorterminal.com/compare/braintrust-vs-laminar.md)\n- [Galileo API + MCP vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/galileo-vs-helicone.md)\n- [Galileo API + MCP vs Laminar API + MCP](https://www.anchorterminal.com/compare/galileo-vs-laminar.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- [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- [Laminar API + MCP vs Langfuse API + MCP](https://www.anchorterminal.com/compare/laminar-vs-langfuse.md)\n- [Laminar API + MCP vs LangSmith API + MCP](https://www.anchorterminal.com/compare/laminar-vs-langsmith.md)\n- [Laminar API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/laminar-vs-respan.md)\n",
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    "description": "Laminar API + MCP has a score of 57 (C) against Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is schema \u0026 documentation, 19 points. Category scores, facts, verdicts and agent notes side by side.",
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