{
  "data": {
    "a": {
      "slug": "lago",
      "name": "Lago",
      "vendor": "Get Lago Corp.",
      "vendorUrl": "https://getlago.com",
      "kind": "http-api",
      "category": "payment-platforms",
      "summary": "Lago is open-source billing software from Get Lago Corp. for usage metering, subscriptions, prepaid credits and invoicing. It is self-hosted under AGPL-3.0 or bought as Lago Cloud, and driven through a REST API, SDKs, a CLI and an MCP server.",
      "url": "https://www.anchorterminal.com/tools/lago",
      "markdownUrl": "https://www.anchorterminal.com/tools/lago.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/lago.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/lago.json",
      "repo": "https://github.com/getlago/lago",
      "license": "AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "oci",
          "name": "getlago/lago"
        },
        {
          "registry": "pypi",
          "name": "lago-python-client"
        },
        {
          "registry": "npm",
          "name": "lago-javascript-client"
        },
        {
          "registry": "go",
          "name": "github.com/getlago/lago-go-client"
        }
      ],
      "auth": "api-key",
      "authNotes": "The REST API takes an organisation API key as a Bearer token. On a self-hosted instance a person signs up in the local UI and copies the key from the Developers section, or the Compose files create the organisation and key from `LAGO_CREATE_ORG` and `LAGO_ORG_API_KEY`. The free edition has one key with full access, which can be rotated. More keys need a Premium licence and per-resource `read`, `write` or `read_write` permissions need an enterprise add-on. No OAuth flow exists.",
      "pricing": "freemium",
      "pricingNotes": "The open-source edition is free to self-host under AGPL-3.0, with no card or account. Lago Cloud and Premium self-hosted are sold by custom quote. The pricing summary states a five-figure minimum annual commitment for Cloud and publishes no rate. It also says a Cloud free trial is available, which the docs FAQ contradicts. No sandbox exists, so tests run on a separate instance or organisation (https://getlago.com/pricing.md, checked 2026-10-09).",
      "priceSummary": "Freemium",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402. Lago's llms.txt says direct x402 and general agent-wallet support are not available. Stripe Shared Payment Token collection is a public preview behind a feature flag (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 10665,
        "npmWeekly": 48093,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://getlago.com/docs/welcome",
      "llmsTxt": "https://getlago.com/docs/llms.txt",
      "openapi": "https://swagger.getlago.com/openapi.yaml",
      "capabilities": [
        "payments.metering",
        "payments.card"
      ],
      "tags": [
        "open-source",
        "self-hosted",
        "agpl",
        "openapi",
        "llms-txt",
        "webhooks",
        "mcp",
        "cli",
        "python",
        "typescript",
        "ruby",
        "go",
        "docker",
        "soc2"
      ],
      "lastRelease": "2026-10-07",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 65.7,
        "grade": "B",
        "agentReady": false,
        "rank": 311,
        "ranked": true,
        "rankOf": 950,
        "categoryRank": 8,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 71,
          "maintenance": 91,
          "payments": 50,
          "reliability": 86,
          "schema": 87,
          "security": 37,
          "transparency": 59
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-09"
        },
        "negative": -3,
        "negativeNotes": [
          "9 October 2026. https://getlago.com/llms.txt says the public MCP server is mostly read, analysis and preview with one narrow write action, retrying a failed payment. The server's source at https://github.com/getlago/lago-agent-toolkit (mcp/src/server.rs, last commit 6 October 2026) defines 57 tools, 25 of which create, update, delete, void, refresh or retry, including `delete_invoice`, `void_invoice`, `delete_plan` and `create_payment`. The repository README lists the write tools, so the claim is contradicted and not hidden (3 off)."
        ],
        "verdict": "Lago's open-source edition runs usage metering, plans, wallets and invoicing on the owner's servers at no charge, with an OpenAPI 3.1 file of 217 operations and releases about every two weeks. The free edition has one unscoped API key and no audit logs, and Lago's llms.txt understates what its MCP server can change.",
        "bestFor": "A team that wants usage metering, plans, wallets and invoicing under its own control and can run PostgreSQL and Redis.",
        "strengths": [
          "The whole platform is AGPL-3.0 and installs from the official `getlago/lago` Docker image or Helm charts, with no software fee",
          "Public OpenAPI 3.1 description with 217 operations, 339 schemas and 76 webhook events, plus llms.txt, a full-text docs export and Markdown twins",
          "Six tagged releases between 27 July and 7 October 2026, and the five latest test runs on the API's main branch passed on 8 and 9 October",
          "Usage events are deduplicated on `transaction_id`, so a retried event is billed once when it is resent unchanged",
          "Self-hosted analytics are listed event by event and switched off with `LAGO_DISABLE_SEGMENT=true`, which the source confirms"
        ],
        "weaknesses": [
          "The free edition has one organisation API key with full access. Creating more keys needs a Premium licence and per-resource permissions need an enterprise add-on",
          "Activity logs are closed to free users, and activity, API and security logs also need ClickHouse",
          "Lago's llms.txt says the MCP server has one write action. Its source defines 57 tools, 25 of which create, update, delete, void or retry, with no read-only mode",
          "Lago Cloud and Premium have no public price. The pricing summary states a five-figure minimum annual commitment and a custom quote",
          "The pricing summary says a Lago Cloud free trial is available, and the docs FAQ says Premium plans have no free trial",
          "No security.txt, repository security policy or published advisory was found, and the privacy policy does not cover data held in the product"
        ],
        "agentNotes": [
          "Call `\u003cyour Lago API origin\u003e/api/v1` with `Authorization: Bearer \u003ckey\u003e`. On Lago Cloud the hosts are `api.getlago.com` and `api.eu.getlago.com`",
          "Send every usage event with a deterministic `transaction_id` and an explicit `timestamp`, and resend the same payload on retry. On the ClickHouse event store a changed timestamp is billed again",
          "Expect 422 `value_already_exist` for a repeated event on the Postgres event store. Treat it as success for a retry",
          "Page with `page` and `per_page` and read `meta.next_page` and `meta.total_count`. The default page size is 100 in most cases",
          "Treat the free edition's API key as full access. It can void invoices and terminate subscriptions, so keep it out of prompts and ask a person before financial changes",
          "Before giving an assistant the MCP server, note that it includes `delete_invoice`, `void_invoice`, `delete_plan` and `create_payment` and sets no read-only annotations"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 65.7
          }
        ],
        "editorialScores": {
          "ergonomics": 71,
          "maintenance": 91,
          "payments": 50,
          "reliability": 86,
          "schema": 87,
          "security": 37,
          "transparency": 77
        },
        "provenanceScore": 41
      },
      "connect": {
        "install": "docker run -d --name lago -p 80:80 -p 3000:3000 getlago/lago:latest",
        "http": "curl --location --request GET \"$LAGO_URL/api/v1/coupons?page=1\u0026per_page=10\" \\\n  --header \"Authorization: Bearer $API_KEY\"",
        "config": {
          "mcpServers": {
            "lago": {
              "args": [
                "run",
                "--rm",
                "-i",
                "--pull=always",
                "--name",
                "lago-mcp-server",
                "-e",
                "LAGO_API_KEY=your_lago_api_key",
                "-e",
                "LAGO_API_URL=your_lago_api_url",
                "getlago/lago-mcp-server:latest"
              ],
              "command": "docker"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/payments.metering",
        "tool": "https://letme.dev/lago"
      },
      "area": "payments",
      "provenance": {
        "legalEntity": "Get Lago Corp.",
        "domain": "getlago.com",
        "domainRegistered": "2020-11-27",
        "endpointOnVendorDomain": false,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://getlago.com/docs/changelog/product",
        "securityTxt": "none",
        "checked": "2026-10-09",
        "notes": [
          "The privacy policy and the Lago Cloud terms name Get Lago Corp., 1111B S Governors Ave #7455, Dover, DE 19904, United States, company number 86-3963083.",
          "No terms link is given because the edition graded is AGPL-3.0 software the owner runs. The Lago Self-Hosted Terms and Conditions (updated 9 March 2024) say they apply to self-hosted Premium plans, and the Lago Cloud terms apply through an order form.",
          "No privacy link is given. The privacy policy (updated 18 September 2026) covers customers' representatives, suppliers, candidates and site visitors, and does not address data held in a self-hosted instance or the Segment analytics it sends.",
          "The API answers on the owner's own host. Lago Cloud answers at api.getlago.com and api.eu.getlago.com.",
          "status.getlago.com, on incident.io, covers the US and EU Lago Cloud clusters only, so no status page is recorded for the graded edition.",
          "getlago.com/.well-known/security.txt returned 404. The security page gives security@getlago.com.",
          "RDAP for getlago.com gives a registration date of 2020-11-27 and Gandi SAS as registrar."
        ],
        "score": 41
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/lago.json",
      "live": {
        "slug": "lago",
        "versions": [
          {
            "registry": "github",
            "name": "getlago/lago",
            "version": "v1.55.0",
            "released": "2026-10-07",
            "seenAt": "2026-10-09T17:01:07.029964093Z"
          },
          {
            "registry": "npm",
            "name": "lago-javascript-client",
            "version": "1.55.0",
            "seenAt": "2026-10-09T17:01:06.180706665Z"
          },
          {
            "registry": "pypi",
            "name": "lago-python-client",
            "version": "1.55.0",
            "released": "2026-10-07",
            "seenAt": "2026-10-09T17:01:05.951391418Z"
          }
        ],
        "githubStars": 10667,
        "npmWeekly": 48093,
        "pypiWeekly": 4510,
        "pages": [
          {
            "url": "https://getlago.com/docs/changelog/product",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-09T18:39:49.512530703Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "37091c8d6eb7"
          },
          {
            "url": "https://getlago.com/pricing.md",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-09T18:39:51.811950235Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b4af57318431"
          }
        ],
        "updatedAt": "2026-10-09T18:39:51.811950235Z"
      }
    },
    "answer": "Metronome scores 69.7 (B) on agent readiness against Lago's 65.7 (B), and leads in 4 of 7 scored categories. Lago leads on reliability, payments \u0026 pricing and maintenance \u0026 community.",
    "b": {
      "slug": "metronome",
      "name": "Metronome",
      "vendor": "Metronome (Stripe)",
      "vendorUrl": "https://metronome.com",
      "kind": "http-api",
      "category": "payment-platforms",
      "summary": "Metronome is a hosted usage-based billing platform, part of Stripe. Its REST API ingests usage events, defines billable metrics, rate cards and contracts, and generates invoices, with official SDKs for Python, Node.js, Go, Ruby and Java.",
      "url": "https://www.anchorterminal.com/tools/metronome",
      "markdownUrl": "https://www.anchorterminal.com/tools/metronome.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/metronome.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/metronome.json",
      "repo": "https://github.com/Metronome-Industries/metronome-node",
      "license": "Proprietary service under the Stripe Services Agreement. The SDKs on GitHub are Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.metronome.com",
      "packages": [
        {
          "registry": "npm",
          "name": "@metronome/sdk"
        },
        {
          "registry": "pypi",
          "name": "metronome-sdk"
        },
        {
          "registry": "go",
          "name": "github.com/Metronome-Industries/metronome-go"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer tokens, created by a person under Developer, API tokens in the Metronome app and shown once. A sandbox token reaches only sandbox data and a production token only production data. A token has its creator's permissions unless Metronome support scopes it by access level, environment or endpoint. Tokens can be archived, not edited. The API description also describes agentic tokens, whose writes need a person's approval.",
      "pricing": "usage",
      "pricingNotes": "The Startup plan costs 0.8 per cent of billing volume plus $0.04 per 1,000 ingested events, self-serve with a credit card for production. The pricing page says \"Start free\" and a sandbox account is self-serve. Custom plan prices are set by sales, and the docs describe an annual platform fee plus consumption charges on order forms (https://metronome.com/pricing, checked 2026-10-09).",
      "priceSummary": "0.8% fee",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the OpenAPI description, the docs index or the pricing page (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 7,
        "npmWeekly": 363390,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://docs.metronome.com/guides/get-started/home",
      "llmsTxt": "https://docs.metronome.com/llms.txt",
      "openapi": "https://docs.metronome.com/openapi.json",
      "capabilities": [
        "payments.metering",
        "accounting.invoices"
      ],
      "tags": [
        "hosted",
        "usage-billing",
        "openapi",
        "llms-txt",
        "webhooks",
        "python",
        "typescript",
        "go",
        "ruby",
        "java",
        "status-page",
        "soc2",
        "closed-source",
        "sandbox"
      ],
      "lastRelease": "2026-09-29",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 69.7,
        "grade": "B",
        "agentReady": false,
        "rank": 173,
        "ranked": true,
        "rankOf": 950,
        "categoryRank": 4,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 75,
          "maintenance": 82,
          "payments": 39,
          "reliability": 68,
          "schema": 88,
          "security": 68,
          "transparency": 65
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-09"
        },
        "negative": 0,
        "verdict": "Metronome's API carries an `Idempotency-Key` on every POST, a public OpenAPI description of 142 operations, and agentic tokens whose writes wait for a person's approval. Prices for the Startup plan are public. Errors return only a `message` string, token scopes are set through support, and the status feed lists 13 incidents since 22 July 2026.",
        "bestFor": "A company that meters usage and bills on contracts, credits and commits, with invoices delivered through Stripe, NetSuite or cloud marketplaces.",
        "strengths": [
          "Public OpenAPI 3.0.1 description with 142 operations and 509 schemas, plus llms.txt and a Markdown twin of each docs page",
          "`Idempotency-Key` accepted on every POST for at least 24 hours, `uniqueness_key` on contracts and alerts, and event `transaction_id` deduplication for 34 days",
          "Agentic tokens get `403 AgenticMutationBlocked` on writes and queue them at `/v1/approval_requests` for a person to approve or deny",
          "Audit log readable at `/v1/auditLogs`, naming the user or API token, the resource, the action, the IP address and the user agent",
          "Startup plan prices are public (0.8 per cent of billing volume and $0.04 per 1,000 ingested events), with a self-serve sandbox sign-up"
        ],
        "weaknesses": [
          "Errors are a single `message` string with no machine-readable code, and the API description documents a 4xx response on 87 of 142 operations",
          "Token scoping by access level, environment or endpoint is set by contacting support. By default a token has its creator's permissions",
          "The status feed lists 13 incidents between 22 July and 8 October 2026, among them two hours of elevated API and ingest errors on 3 September",
          "No SLA document is published. The pricing page names enhanced SLAs on the Custom plan only",
          "The governing terms are Stripe's Services Agreement, which does not name Metronome and grants Stripe a licence to use customer content to develop and improve its services",
          "No deprecation policy was found. SDK releases of 16 January and 2 March 2026 removed fields, announced in the changelog on the day"
        ],
        "agentNotes": [
          "Send an `Idempotency-Key` header on every POST and reuse it on retry. A cached error is returned for the same key, so use a new key after fixing the cause",
          "Give each usage event a stable `transaction_id`. Metronome ignores repeats for 34 days and accepts at most 100 events per `/v1/ingest` call",
          "On 429 read `X-Metronome-Rate-Limit-Type` (`client` or `customer`) and back off. Unlisted endpoints default to 8 requests a second",
          "With an agentic token, expect `403 AgenticMutationBlocked` on writes. Post the original method, path and body to `/v1/approval_requests` and show the person the `approval_url`",
          "Use a sandbox token for testing. The token alone decides whether a call reaches sandbox or production data"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 69.7
          }
        ],
        "editorialScores": {
          "ergonomics": 75,
          "maintenance": 82,
          "payments": 39,
          "reliability": 68,
          "schema": 88,
          "security": 68,
          "transparency": 45
        },
        "provenanceScore": 85
      },
      "connect": {
        "install": "npm install @metronome/sdk",
        "http": "curl -X POST https://api.metronome.com/v1/billable-metrics/create \\\n  -H \"Authorization: Bearer $METRONOME_API_TOKEN\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\n    \"name\": \"API Calls\",\n    \"aggregation_type\": \"count\",\n    \"event_type_filter\": {\n      \"in_values\": [\"api_call\"]\n    }\n  }'"
      },
      "letme": {
        "capability": "https://letme.dev/payments.metering",
        "tool": "https://letme.dev/metronome"
      },
      "area": "payments",
      "unitPrices": [
        {
          "item": "Startup plan fee on billing volume",
          "unit": "pct",
          "usd": 0.8,
          "note": "plus the event fee. Custom plan priced by sales"
        },
        {
          "item": "Ingested usage event on the Startup plan",
          "unit": "tx",
          "usd": 0.00004,
          "note": "$0.04 per 1,000 ingest events"
        }
      ],
      "provenance": {
        "legalEntity": "Stripe, LLC",
        "domain": "metronome.com",
        "domainRegistered": "1998-11-04",
        "endpointOnVendorDomain": true,
        "terms": "https://stripe.com/legal/ssa",
        "privacy": "https://stripe.com/privacy",
        "statusPage": "https://status.metronome.com",
        "changelog": "https://docs.metronome.com/changelog",
        "securityTxt": "none",
        "checked": "2026-10-09",
        "notes": [
          "Metronome's site says it is now part of Stripe. Its legal centre links two documents, Stripe's Services Agreement as terms of service and Stripe's privacy policy.",
          "The Stripe Services Agreement (General Terms last modified 28 September 2026) names Stripe, LLC as the contracting entity for the United States, with other Stripe entities by country. It does not mention Metronome by name. Our request was redirected to the United Kingdom edition of the page.",
          "The Stripe privacy policy was last updated on 28 April 2026 and covers services supplied under the Stripe Services Agreement. It does not mention Metronome by name.",
          "The API answers at https://api.metronome.com per the OpenAPI description's server entry.",
          "https://metronome.com/.well-known/security.txt returned 404. The SDK repositories' SECURITY.md gives dev-feedback@metronome.com for service security questions.",
          "RDAP for metronome.com gives a registration date of 1998-11-04, which predates the company."
        ],
        "score": 85
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/metronome.json",
      "live": {
        "slug": "metronome",
        "probe": {
          "target": "https://api.metronome.com",
          "method": "get",
          "lastAt": "2026-10-10T03:53:34.586779144Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 440,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 427,
          "p95ms24h": 501,
          "samples24h": 125,
          "samples30d": 125,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 85,
              "ok": 85
            },
            {
              "date": "2026-10-10",
              "probes": 40,
              "ok": 40
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.metronome.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-10T03:58:28.067251868Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "Metronome-Industries/metronome-node",
            "version": "v3.10.0",
            "released": "2026-07-23",
            "seenAt": "2026-10-09T17:05:18.814448022Z"
          },
          {
            "registry": "npm",
            "name": "@metronome/sdk",
            "version": "3.10.0",
            "seenAt": "2026-10-09T17:05:16.810932336Z"
          },
          {
            "registry": "pypi",
            "name": "metronome-sdk",
            "version": "4.11.1",
            "released": "2026-08-28",
            "seenAt": "2026-10-09T17:05:17.824671392Z"
          }
        ],
        "githubStars": 7,
        "npmWeekly": 363390,
        "pypiWeekly": 157134,
        "pages": [
          {
            "url": "https://docs.metronome.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-09T18:37:46.155976649Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "db085f3c5807"
          },
          {
            "url": "https://metronome.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-09T18:42:03.074548835Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "0590b21f8bad"
          },
          {
            "url": "https://stripe.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-09T18:46:09.307033961Z",
            "changedAt": "2026-10-08T18:24:56.248781585Z",
            "fingerprint": "73ea5b705ed5"
          },
          {
            "url": "https://stripe.com/legal/ssa",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-09T18:46:05.029930659Z",
            "changedAt": "2026-10-08T18:24:51.983854093Z",
            "fingerprint": "43483f64e8ca"
          }
        ],
        "updatedAt": "2026-10-10T03:58:28.067251868Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Get Lago Corp.",
        "b": "Metronome (Stripe)",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.metronome.com",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial",
        "b": "Proprietary service under the Stripe Services Agreement. The SDKs on GitHub are Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-07",
        "b": "2026-09-29",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2026-09-28",
        "name": "Terms last updated"
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      {
        "a": "no document linked",
        "b": "2026-04-28",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "11k stars, 48k npm/wk",
        "b": "7 stars, 363k npm/wk",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Metronome scores 69.7 (B) on agent readiness against Lago's 65.7 (B), and leads in 4 of 7 scored categories. Lago leads on reliability, payments \u0026 pricing and maintenance \u0026 community.",
        "question": "Which is better for AI agents, Lago or Metronome?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Lago and Metronome need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for Lago. Metronome has a hosted endpoint at https://api.metronome.com.",
        "question": "Can an agent call Lago and Metronome without installing anything?"
      },
      {
        "answer": "Lago is open source (AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial). No open-source release is listed for Metronome.",
        "question": "Are Lago and Metronome open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 86 against 68",
          "Payments \u0026 pricing, 50 against 39",
          "Maintenance \u0026 community, 91 against 82"
        ],
        "also": [
          "Open source"
        ],
        "goodFor": "A team that wants usage metering, plans, wallets and invoicing under its own control and can run PostgreSQL and Redis.",
        "slug": "lago",
        "watchFor": "The free edition has one organisation API key with full access. Creating more keys needs a Premium licence and per-resource permissions need an enterprise add-on"
      },
      {
        "aheadOn": [
          "Security \u0026 auth, 68 against 37",
          "Transparency \u0026 trust, 65 against 59"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "No incidents deducted, where Lago loses 3 points for them"
        ],
        "goodFor": "A company that meters usage and bills on contracts, credits and commits, with invoices delivered through Stripe, NetSuite or cloud marketplaces.",
        "slug": "metronome",
        "watchFor": "Errors are a single `message` string with no machine-readable code, and the API description documents a 4xx response on 87 of 142 operations"
      }
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      "name": "Usage billing"
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    "others": [
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      {
        "json": "https://www.anchorterminal.com/compare/atxp-vs-metronome.json",
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      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-orb.json",
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      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-paid.json",
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        "url": "https://www.anchorterminal.com/compare/lago-vs-paid"
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      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-stripe-mcp.json",
        "title": "Lago vs Stripe API + MCP",
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      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-tempo.json",
        "title": "Lago vs Tempo",
        "url": "https://www.anchorterminal.com/compare/lago-vs-tempo"
      },
      {
        "json": "https://www.anchorterminal.com/compare/metronome-vs-nevermined.json",
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        "json": "https://www.anchorterminal.com/compare/metronome-vs-orb.json",
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      {
        "json": "https://www.anchorterminal.com/compare/metronome-vs-paid.json",
        "title": "Metronome vs Paid",
        "url": "https://www.anchorterminal.com/compare/metronome-vs-paid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/metronome-vs-stripe-mcp.json",
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        "url": "https://www.anchorterminal.com/compare/metronome-vs-stripe-mcp"
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        "json": "https://www.anchorterminal.com/compare/metronome-vs-tempo.json",
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      {
        "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-lago.json",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-payman.json",
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        "json": "https://www.anchorterminal.com/compare/lago-vs-skyfire.json",
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        "json": "https://www.anchorterminal.com/compare/metronome-vs-paypal-mcp-server.json",
        "title": "Metronome vs PayPal MCP server",
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    "scores": [
      {
        "by": 18,
        "edge": "lago",
        "key": "reliability",
        "lago": 86,
        "metronome": 68,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 1,
        "edge": "metronome",
        "key": "schema",
        "lago": 87,
        "metronome": 88,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 4,
        "edge": "metronome",
        "key": "ergonomics",
        "lago": 71,
        "metronome": 75,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 31,
        "edge": "metronome",
        "key": "security",
        "lago": 37,
        "metronome": 68,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 11,
        "edge": "lago",
        "key": "payments",
        "lago": 50,
        "metronome": 39,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 9,
        "edge": "lago",
        "key": "maintenance",
        "lago": 91,
        "metronome": 82,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 6,
        "edge": "metronome",
        "key": "transparency",
        "lago": 59,
        "metronome": 65,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Metronome scores 69.7 (B) on agent readiness against Lago's 65.7 (B), and leads in 4 of 7 scored categories. Lago leads on reliability, payments \u0026 pricing and maintenance \u0026 community. Both do usage billing.",
    "verdicts": {
      "lago": "Lago's open-source edition runs usage metering, plans, wallets and invoicing on the owner's servers at no charge, with an OpenAPI 3.1 file of 217 operations and releases about every two weeks. The free edition has one unscoped API key and no audit logs, and Lago's llms.txt understates what its MCP server can change.",
      "metronome": "Metronome's API carries an `Idempotency-Key` on every POST, a public OpenAPI description of 142 operations, and agentic tokens whose writes wait for a person's approval. Prices for the Startup plan are public. Errors return only a `message` string, token scopes are set through support, and the status feed lists 13 incidents since 22 July 2026."
    }
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  "markdown": "Metronome scores 69.7 (B) on agent readiness against Lago's 65.7 (B), and leads in 4 of 7 scored categories. Lago leads on reliability, payments \u0026 pricing and maintenance \u0026 community. Both do usage billing.\n\n- Lago: grade B, 65.7/100, rank #311 of 950. Markdown https://www.anchorterminal.com/tools/lago.md · JSON https://www.anchorterminal.com/api/v1/tools/lago.json\n- Metronome: grade B, 69.7/100, rank #173 of 950. Markdown https://www.anchorterminal.com/tools/metronome.md · JSON https://www.anchorterminal.com/api/v1/tools/metronome.json\n- Best payment and monetisation platforms for AI agents: https://www.anchorterminal.com/best/payment-platforms/index.md\n- All 76 platforms comparisons: https://www.anchorterminal.com/compare/payment-platforms/index.md\n\n## Which one, for what\n\n### Lago (B)\n\nGood for: A team that wants usage metering, plans, wallets and invoicing under its own control and can run PostgreSQL and Redis.\n\nAhead on:\n- Reliability, 86 against 68\n- Payments \u0026 pricing, 50 against 39\n- Maintenance \u0026 community, 91 against 82\n\nAlso in its favour:\n- Open source\n\nWatch for: The free edition has one organisation API key with full access. Creating more keys needs a Premium licence and per-resource permissions need an enterprise add-on\n\n### Metronome (B)\n\nGood for: A company that meters usage and bills on contracts, credits and commits, with invoices delivered through Stripe, NetSuite or cloud marketplaces.\n\nAhead on:\n- Security \u0026 auth, 68 against 37\n- Transparency \u0026 trust, 65 against 59\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- No incidents deducted, where Lago loses 3 points for them\n\nWatch for: Errors are a single `message` string with no machine-readable code, and the API description documents a 4xx response on 87 of 142 operations\n\n\n## Score by category\n\n| Category | Weight | Lago | Metronome | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 86 | 68 | Lago +18 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 88 | Metronome +1 |\n| Agent ergonomics | 13% (16.2 this run) | 71 | 75 | Metronome +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 37 | 68 | Metronome +31 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 39 | Lago +11 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 91 | 82 | Lago +9 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 65 | Metronome +6 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **65.7 · B** | **69.7 · B** | |\n\n## Facts side by side\n\n| Fact | Lago | Metronome |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Get Lago Corp. | Metronome (Stripe) |\n| Hosted endpoint | no (local only) | `https://api.metronome.com` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Pay per use |\n| x402 | no | no |\n| Licence | AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial | Proprietary service under the Stripe Services Agreement. The SDKs on GitHub are Apache-2.0 |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-07 | 2026-09-29 |\n| Terms last updated | no document linked | 2026-09-28 |\n| Privacy policy last updated | no document linked | 2026-04-28 |\n| Customer content may train models |  | yes |\n| Terms restrict automated access |  | not found in the text |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | yes |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | 11k stars, 48k npm/wk | 7 stars, 363k npm/wk |\n\n## Verdicts\n\n**Lago.** Lago's open-source edition runs usage metering, plans, wallets and invoicing on the owner's servers at no charge, with an OpenAPI 3.1 file of 217 operations and releases about every two weeks. The free edition has one unscoped API key and no audit logs, and Lago's llms.txt understates what its MCP server can change.\n\n**Metronome.** Metronome's API carries an `Idempotency-Key` on every POST, a public OpenAPI description of 142 operations, and agentic tokens whose writes wait for a person's approval. Prices for the Startup plan are public. Errors return only a `message` string, token scopes are set through support, and the status feed lists 13 incidents since 22 July 2026.\n\n## Before you call either\n\n### Lago\n\n1. Call `\u003cyour Lago API origin\u003e/api/v1` with `Authorization: Bearer \u003ckey\u003e`. On Lago Cloud the hosts are `api.getlago.com` and `api.eu.getlago.com`\n2. Send every usage event with a deterministic `transaction_id` and an explicit `timestamp`, and resend the same payload on retry. On the ClickHouse event store a changed timestamp is billed again\n3. Expect 422 `value_already_exist` for a repeated event on the Postgres event store. Treat it as success for a retry\n4. Page with `page` and `per_page` and read `meta.next_page` and `meta.total_count`. The default page size is 100 in most cases\n5. Treat the free edition's API key as full access. It can void invoices and terminate subscriptions, so keep it out of prompts and ask a person before financial changes\n6. Before giving an assistant the MCP server, note that it includes `delete_invoice`, `void_invoice`, `delete_plan` and `create_payment` and sets no read-only annotations\n\n### Metronome\n\n1. Send an `Idempotency-Key` header on every POST and reuse it on retry. A cached error is returned for the same key, so use a new key after fixing the cause\n2. Give each usage event a stable `transaction_id`. Metronome ignores repeats for 34 days and accepts at most 100 events per `/v1/ingest` call\n3. On 429 read `X-Metronome-Rate-Limit-Type` (`client` or `customer`) and back off. Unlisted endpoints default to 8 requests a second\n4. With an agentic token, expect `403 AgenticMutationBlocked` on writes. Post the original method, path and body to `/v1/approval_requests` and show the person the `approval_url`\n5. Use a sandbox token for testing. The token alone decides whether a call reaches sandbox or production data\n\n## Questions\n\n### Which is better for AI agents, Lago or Metronome?\n\nMetronome scores 69.7 (B) on agent readiness against Lago's 65.7 (B), and leads in 4 of 7 scored categories. Lago leads on reliability, payments \u0026 pricing and maintenance \u0026 community.\n\n### Do Lago and Metronome need an API key?\n\nBoth need an API key.\n\n### Can an agent call Lago and Metronome without installing anything?\n\nNo hosted endpoint is listed for Lago. Metronome has a hosted endpoint at https://api.metronome.com.\n\n### Are Lago and Metronome open source?\n\nLago is open source (AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial). No open-source release is listed for Metronome.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/lago-vs-metronome.json, and with the fewest tokens: https://www.anchorterminal.com/compare/lago-vs-metronome.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"lago\", \"b\": \"metronome\"}`. From a terminal: `anchor compare lago metronome`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/lago.json and https://www.anchorterminal.com/api/v1/tools/metronome.json\n\n## Other comparisons with Lago or Metronome\n\n- [ATXP vs Lago](https://www.anchorterminal.com/compare/atxp-vs-lago.md)\n- [ATXP vs Metronome](https://www.anchorterminal.com/compare/atxp-vs-metronome.md)\n- [Lago vs Nevermined API + MCP](https://www.anchorterminal.com/compare/lago-vs-nevermined.md)\n- [Lago vs Orb](https://www.anchorterminal.com/compare/lago-vs-orb.md)\n- [Lago vs Paid](https://www.anchorterminal.com/compare/lago-vs-paid.md)\n- [Lago vs Stripe API + MCP](https://www.anchorterminal.com/compare/lago-vs-stripe-mcp.md)\n- [Lago vs Tempo](https://www.anchorterminal.com/compare/lago-vs-tempo.md)\n- [Metronome vs Nevermined API + MCP](https://www.anchorterminal.com/compare/metronome-vs-nevermined.md)\n- [Metronome vs Orb](https://www.anchorterminal.com/compare/metronome-vs-orb.md)\n- [Metronome vs Paid](https://www.anchorterminal.com/compare/metronome-vs-paid.md)\n- [Metronome vs Stripe API + MCP](https://www.anchorterminal.com/compare/metronome-vs-stripe-mcp.md)\n- [Metronome vs Tempo](https://www.anchorterminal.com/compare/metronome-vs-tempo.md)\n- [Adyen MCP server vs Lago](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-lago.md)\n- [Crossmint API + Docs MCP vs Lago](https://www.anchorterminal.com/compare/crossmint-vs-lago.md)\n- [Lago vs Payman Genie MCP](https://www.anchorterminal.com/compare/lago-vs-payman.md)\n- [Lago vs Skyfire API + MCP](https://www.anchorterminal.com/compare/lago-vs-skyfire.md)\n- [Metronome vs PayPal MCP server](https://www.anchorterminal.com/compare/metronome-vs-paypal-mcp-server.md)\n",
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    "description": "Metronome scores 69.7 (B) to Lago's 65.7 (B) for usage billing. Prices, MCP, x402, uptime and agent notes side by side.",
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