{
  "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": "Lago scores 65.7 (B) on agent readiness against Paid's 55.1 (C), and leads in 6 of 7 scored categories. Paid leads on security \u0026 auth.",
    "b": {
      "slug": "paid",
      "name": "Paid",
      "vendor": "Agent Paid Limited",
      "vendorUrl": "https://paid.ai",
      "kind": "http-api",
      "category": "payment-platforms",
      "summary": "Paid is a billing and metering platform for companies that sell AI agents. It records usage signals and model costs and runs credits, plans, invoices and checkout, through a REST API, five SDKs, a CLI and a hosted MCP server.",
      "url": "https://www.anchorterminal.com/tools/paid",
      "markdownUrl": "https://www.anchorterminal.com/tools/paid.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/paid.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/paid.json",
      "repo": "https://github.com/paid-ai/paid-node",
      "license": "Proprietary service under Paid's Master Subscription Agreement. The Node and Python SDKs on GitHub are MIT",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.agentpaid.io/api/v2",
      "packages": [
        {
          "registry": "npm",
          "name": "@paid-ai/paid-node"
        },
        {
          "registry": "pypi",
          "name": "paid-python"
        },
        {
          "registry": "go",
          "name": "github.com/paid-ai/paid-go"
        },
        {
          "registry": "npm",
          "name": "@paid-ai/cli"
        }
      ],
      "auth": "mixed",
      "authNotes": "The REST API takes an organisation API key as a Bearer token. A person creates it at app.paid.ai under Settings, API keys. Keys are full-access or restricted by scope, and customer API keys are bound to one customer and one route. The MCP server at mcp.agentpaid.io accepts OAuth 2.1 with PKCE and automatic client registration through auth.paid.ai, or an API key. Access is self-serve with no review step found.",
      "pricing": "freemium",
      "pricingNotes": "Free plan at $0 for up to $100,000 of billings a year, with no card required per the pricing page. Paid plans are $300, $600 and $1,000 a month by billings tier, with a 14-day trial and 20 per cent off for annual billing, and Enterprise is priced on request. No per-call price or percentage fee is published. Test-mode organisations work as a sandbox (https://paid.ai/pricing, checked 2026-10-09).",
      "priceSummary": "$300 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the 178-operation API reference index, the guides read or the pricing page. End customers pay through the builder's connected Stripe account (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 24363,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://docs.paid.ai",
      "llmsTxt": "https://docs.paid.ai/llms.txt",
      "capabilities": [
        "payments.metering",
        "payments.checkout",
        "payments.card"
      ],
      "tags": [
        "hosted",
        "freemium",
        "no-card",
        "mcp",
        "oauth",
        "llms-txt",
        "cli",
        "webhooks",
        "typescript",
        "python",
        "go",
        "ruby",
        "java",
        "closed-source"
      ],
      "lastRelease": "2026-09-15",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 55.1,
        "grade": "C",
        "agentReady": false,
        "rank": 669,
        "ranked": true,
        "rankOf": 950,
        "categoryRank": 11,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 77,
          "payments": 30,
          "reliability": 35,
          "schema": 64,
          "security": 65,
          "transparency": 51
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-09"
        },
        "negative": 0,
        "verdict": "Paid suits a builder who wants usage metering, credits and invoicing behind one API, with restricted and customer-bound keys, OAuth on the MCP server and a free plan that needs no card. No status page, SLA figure, API changelog or rate-limit numbers were found, both advertised OpenAPI links returned 404, and card payments need the builder's own Stripe account.",
        "bestFor": "A team selling an AI agent that needs usage metering, credit balances, cost and margin tracking and invoicing in one service, with Stripe as the payment rail.",
        "strengths": [
          "Free plan at $0 for up to $100,000 of billings a year, and the pricing page says no credit card is required",
          "The hosted MCP server signs in through OAuth 2.1 with PKCE and client registration, and tools run with the user's role, so viewers stay read-only",
          "Customer API keys are bound to one customer, can only send that customer's signals, take an optional expiry and are stored as a hash",
          "Rate-limited requests answer 429 with `Retry-After`, and an `idempotencyKey` on each signal makes a whole-batch retry safe",
          "The agreement says customer data is not used to train general-purpose models, and the DPA names AWS US-East-1 and a 30-day retrieval window"
        ],
        "weaknesses": [
          "The docs index advertises an OpenAPI 3.1 file at two addresses, and both returned 404 on 9 October 2026",
          "No status page, uptime figure or SLA percentage was found. The agreement promises commercially reasonable efforts only",
          "Rate limits are described as a token bucket per organisation with no published bucket size or refill rate",
          "No API changelog or deprecation policy was found. Six operations are marked deprecated with no removal date",
          "The API and MCP server run on agentpaid.io, a second domain, and collecting card or bank payments needs the builder's own connected Stripe account"
        ],
        "agentNotes": [
          "Call `https://api.agentpaid.io/api/v2` with `Authorization: Bearer \u003ckey\u003e`. A person creates the first key at app.paid.ai. No programmatic signup was found",
          "Give every signal a stable `idempotencyKey` and resend the same key on retry. Signals without one are not deduplicated",
          "Send at most 500 signals a request. A 429 rejects the whole batch, so wait for `Retry-After` and resend it all",
          "Read the `code` field on a 429. `CONCURRENCY_LIMIT_EXCEEDED` carries no `Retry-After` and clears when an analytics query finishes",
          "Install the Python SDK as `paid-python`, the name in its README and `pyproject.toml`. The quickstart's `pip install paid` names a package we could not check"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 55.1
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 77,
          "payments": 30,
          "reliability": 35,
          "schema": 64,
          "security": 65,
          "transparency": 55
        },
        "provenanceScore": 47
      },
      "connect": {
        "install": "npm install @paid-ai/paid-node",
        "http": "curl -X POST https://api.agentpaid.io/api/v2/customers/external/customer_123/api-keys \\\n  -H \"Authorization: Bearer $PAID_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"name\": \"Tenant runtime (production)\"}'",
        "claudeCode": "claude mcp add --transport http paid https://mcp.agentpaid.io/mcp",
        "config": {
          "mcpServers": {
            "paid": {
              "type": "http",
              "url": "https://mcp.agentpaid.io/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/payments.metering",
        "tool": "https://letme.dev/paid"
      },
      "area": "payments",
      "unitPrices": [
        {
          "item": "Grow plan",
          "unit": "month",
          "usd": 300,
          "note": "up to $200,000 of billings a year, billed monthly"
        },
        {
          "item": "Scale plan",
          "unit": "month",
          "usd": 600,
          "note": "up to $500,000 of billings a year, billed monthly"
        },
        {
          "item": "Accelerate plan",
          "unit": "month",
          "usd": 1000,
          "note": "up to $1 million of billings a year, billed monthly"
        }
      ],
      "provenance": {
        "legalEntity": "Agent Paid Limited",
        "domain": "paid.ai",
        "domainRegistered": "2017-12-16",
        "endpointOnVendorDomain": false,
        "terms": "https://paid.ai/legal/msa",
        "privacy": "https://paid.ai/legal/privacy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-09",
        "notes": [
          "The Master Subscription Agreement names Agent Paid Limited, company number 16113498, registered in England and Wales at 161 Farringdon Road, London, EC1R 3AL. It governs the service, free plan included, and carries no date.",
          "The privacy policy names the same company as controller and says processing done for business customers is governed by the customer contract and the DPA at https://paid.ai/legal/dpa (last updated 13 March 2026).",
          "The API answers at api.agentpaid.io and the MCP server at mcp.agentpaid.io. The MCP server's OAuth metadata names auth.paid.ai as its authorisation server.",
          "paid.ai/.well-known/security.txt returned 404. The DPA gives security@paid.ai for reporting suspected incidents.",
          "RDAP for paid.ai gives a registration date of 2017-12-16 and a transfer on 2025-02-13. Agent Paid Limited's SDK licence files are dated 2025.",
          "No status page or API changelog was found in the pricing page footer, the docs index or the pages read. trust.paid.ai was not read."
        ],
        "score": 47
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/paid.json",
      "live": {
        "slug": "paid",
        "probe": {
          "target": "https://api.agentpaid.io/api/v2",
          "method": "get",
          "lastAt": "2026-10-10T03:53:37.237980362Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 260,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 261,
          "p95ms24h": 356,
          "samples24h": 125,
          "samples30d": 125,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 85,
              "ok": 85
            },
            {
              "date": "2026-10-10",
              "probes": 40,
              "ok": 40
            }
          ]
        },
        "versions": [
          {
            "registry": "github",
            "name": "paid-ai/paid-node",
            "version": "1.8.0",
            "released": "2026-09-11",
            "seenAt": "2026-10-09T17:11:50.219297356Z"
          },
          {
            "registry": "npm",
            "name": "@paid-ai/cli",
            "version": "1.2.0",
            "seenAt": "2026-10-09T17:11:49.525583861Z"
          },
          {
            "registry": "npm",
            "name": "@paid-ai/paid-node",
            "version": "1.8.0",
            "seenAt": "2026-10-09T17:11:47.801044563Z"
          },
          {
            "registry": "pypi",
            "name": "paid-python",
            "version": "1.12.0",
            "released": "2026-09-10",
            "seenAt": "2026-10-09T17:11:49.331417076Z"
          }
        ],
        "githubStars": 8,
        "npmWeekly": 24363,
        "pypiWeekly": 25035,
        "pages": [
          {
            "url": "https://paid.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-09T18:42:59.277334688Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "687acc4a19a1"
          },
          {
            "url": "https://paid.ai/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-09T18:42:57.335349283Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "7da60dff7a08"
          },
          {
            "url": "https://paid.ai/legal/msa",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-09T18:42:55.032947366Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "654fd46e6356"
          }
        ],
        "updatedAt": "2026-10-10T03:53:37.237980362Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Get Lago Corp.",
        "b": "Agent Paid Limited",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.agentpaid.io/api/v2",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "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 Paid's Master Subscription Agreement. The Node and Python SDKs on GitHub are MIT",
        "name": "Licence"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-07",
        "b": "2026-09-15",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "11k stars, 48k npm/wk",
        "b": "24k npm/wk",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Lago scores 65.7 (B) on agent readiness against Paid's 55.1 (C), and leads in 6 of 7 scored categories. Paid leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Lago or Paid?"
      },
      {
        "answer": "Lago needs an API key. Paid takes an API key or an OAuth sign-in.",
        "question": "Do Lago and Paid need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for Lago. Paid has a hosted endpoint at https://api.agentpaid.io/api/v2.",
        "question": "Can an agent call Lago and Paid 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 Paid.",
        "question": "Are Lago and Paid open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 86 against 35",
          "Schema \u0026 documentation, 87 against 64",
          "Payments \u0026 pricing, 50 against 30",
          "Maintenance \u0026 community, 91 against 77",
          "Transparency \u0026 trust, 59 against 51"
        ],
        "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, 65 against 37"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "Free to start without a card",
          "No incidents deducted, where Lago loses 3 points for them"
        ],
        "goodFor": "A team selling an AI agent that needs usage metering, credit balances, cost and margin tracking and invoicing in one service, with Stripe as the payment rail.",
        "slug": "paid",
        "watchFor": "The docs index advertises an OpenAPI 3.1 file at two addresses, and both returned 404 on 9 October 2026"
      }
    ],
    "job": {
      "capability": "payments.metering",
      "name": "Usage billing"
    },
    "others": [
      {
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        "title": "ATXP vs Lago",
        "url": "https://www.anchorterminal.com/compare/atxp-vs-lago"
      },
      {
        "json": "https://www.anchorterminal.com/compare/atxp-vs-paid.json",
        "title": "ATXP vs Paid",
        "url": "https://www.anchorterminal.com/compare/atxp-vs-paid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-metronome.json",
        "title": "Lago vs Metronome",
        "url": "https://www.anchorterminal.com/compare/lago-vs-metronome"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-nevermined.json",
        "title": "Lago vs Nevermined API + MCP",
        "url": "https://www.anchorterminal.com/compare/lago-vs-nevermined"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-orb.json",
        "title": "Lago vs Orb",
        "url": "https://www.anchorterminal.com/compare/lago-vs-orb"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-stripe-mcp.json",
        "title": "Lago vs Stripe API + MCP",
        "url": "https://www.anchorterminal.com/compare/lago-vs-stripe-mcp"
      },
      {
        "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-paid.json",
        "title": "Metronome vs Paid",
        "url": "https://www.anchorterminal.com/compare/metronome-vs-paid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/nevermined-vs-paid.json",
        "title": "Nevermined API + MCP vs Paid",
        "url": "https://www.anchorterminal.com/compare/nevermined-vs-paid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/orb-vs-paid.json",
        "title": "Orb vs Paid",
        "url": "https://www.anchorterminal.com/compare/orb-vs-paid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/paid-vs-stripe-mcp.json",
        "title": "Paid vs Stripe API + MCP",
        "url": "https://www.anchorterminal.com/compare/paid-vs-stripe-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/paid-vs-tempo.json",
        "title": "Paid vs Tempo",
        "url": "https://www.anchorterminal.com/compare/paid-vs-tempo"
      },
      {
        "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-lago.json",
        "title": "Adyen MCP server vs Lago",
        "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-lago"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crossmint-vs-lago.json",
        "title": "Crossmint API + Docs MCP vs Lago",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/crossmint-vs-paid.json",
        "title": "Crossmint API + Docs MCP vs Paid",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-payman.json",
        "title": "Lago vs Payman Genie MCP",
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      {
        "json": "https://www.anchorterminal.com/compare/lago-vs-skyfire.json",
        "title": "Lago vs Skyfire API + MCP",
        "url": "https://www.anchorterminal.com/compare/lago-vs-skyfire"
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      {
        "json": "https://www.anchorterminal.com/compare/paid-vs-payman.json",
        "title": "Paid vs Payman Genie MCP",
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      },
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        "title": "Paid vs PayPal MCP server",
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    ],
    "scores": [
      {
        "by": 51,
        "edge": "lago",
        "key": "reliability",
        "lago": 86,
        "name": "Reliability",
        "paid": 35,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 23,
        "edge": "lago",
        "key": "schema",
        "lago": 87,
        "name": "Schema \u0026 documentation",
        "paid": 64,
        "weight": 13
      },
      {
        "by": 1,
        "edge": "lago",
        "key": "ergonomics",
        "lago": 71,
        "name": "Agent ergonomics",
        "paid": 70,
        "weight": 13
      },
      {
        "by": 28,
        "edge": "paid",
        "key": "security",
        "lago": 37,
        "name": "Security \u0026 auth",
        "paid": 65,
        "weight": 14
      },
      {
        "by": 20,
        "edge": "lago",
        "key": "payments",
        "lago": 50,
        "name": "Payments \u0026 pricing",
        "paid": 30,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 14,
        "edge": "lago",
        "key": "maintenance",
        "lago": 91,
        "name": "Maintenance \u0026 community",
        "paid": 77,
        "weight": 7
      },
      {
        "by": 8,
        "edge": "lago",
        "key": "transparency",
        "lago": 59,
        "name": "Transparency \u0026 trust",
        "paid": 51,
        "weight": 7
      }
    ],
    "summary": "Lago scores 65.7 (B) on agent readiness against Paid's 55.1 (C), and leads in 6 of 7 scored categories. Paid leads on security \u0026 auth. 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.",
      "paid": "Paid suits a builder who wants usage metering, credits and invoicing behind one API, with restricted and customer-bound keys, OAuth on the MCP server and a free plan that needs no card. No status page, SLA figure, API changelog or rate-limit numbers were found, both advertised OpenAPI links returned 404, and card payments need the builder's own Stripe account."
    }
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  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/lago-vs-paid",
    "json": "https://www.anchorterminal.com/compare/lago-vs-paid.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/lago-vs-paid.md",
    "slim": "https://www.anchorterminal.com/compare/lago-vs-paid.min.md"
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  "markdown": "Lago scores 65.7 (B) on agent readiness against Paid's 55.1 (C), and leads in 6 of 7 scored categories. Paid leads on security \u0026 auth. 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- Paid: grade C, 55.1/100, rank #669 of 950. Markdown https://www.anchorterminal.com/tools/paid.md · JSON https://www.anchorterminal.com/api/v1/tools/paid.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 35\n- Schema \u0026 documentation, 87 against 64\n- Payments \u0026 pricing, 50 against 30\n- Maintenance \u0026 community, 91 against 77\n- Transparency \u0026 trust, 59 against 51\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### Paid (C)\n\nGood for: A team selling an AI agent that needs usage metering, credit balances, cost and margin tracking and invoicing in one service, with Stripe as the payment rail.\n\nAhead on:\n- Security \u0026 auth, 65 against 37\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Free to start without a card\n- No incidents deducted, where Lago loses 3 points for them\n\nWatch for: The docs index advertises an OpenAPI 3.1 file at two addresses, and both returned 404 on 9 October 2026\n\n\n## Score by category\n\n| Category | Weight | Lago | Paid | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 86 | 35 | Lago +51 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 64 | Lago +23 |\n| Agent ergonomics | 13% (16.2 this run) | 71 | 70 | Lago +1 |\n| Security \u0026 auth | 14% (17.5 this run) | 37 | 65 | Paid +28 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 30 | Lago +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 91 | 77 | Lago +14 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 51 | Lago +8 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **65.7 · B** | **55.1 · C** | |\n\n## Facts side by side\n\n| Fact | Lago | Paid |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Get Lago Corp. | Agent Paid Limited |\n| Hosted endpoint | no (local only) | `https://api.agentpaid.io/api/v2` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Freemium |\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 Paid's Master Subscription Agreement. The Node and Python SDKs on GitHub are MIT |\n| Read-only variant documented | yes | yes |\n| llms.txt | yes | yes |\n| Last release | 2026-10-07 | 2026-09-15 |\n| Terms last updated | no document linked | no date given |\n| Privacy policy last updated | no document linked | no date given |\n| Customer content may train models |  | not found in the text |\n| Terms restrict automated access |  | not found in the text |\n| Terms restrict benchmarking |  | yes |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | not found in the text |\n| Popularity | 11k stars, 48k npm/wk | 24k 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**Paid.** Paid suits a builder who wants usage metering, credits and invoicing behind one API, with restricted and customer-bound keys, OAuth on the MCP server and a free plan that needs no card. No status page, SLA figure, API changelog or rate-limit numbers were found, both advertised OpenAPI links returned 404, and card payments need the builder's own Stripe account.\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### Paid\n\n1. Call `https://api.agentpaid.io/api/v2` with `Authorization: Bearer \u003ckey\u003e`. A person creates the first key at app.paid.ai. No programmatic signup was found\n2. Give every signal a stable `idempotencyKey` and resend the same key on retry. Signals without one are not deduplicated\n3. Send at most 500 signals a request. A 429 rejects the whole batch, so wait for `Retry-After` and resend it all\n4. Read the `code` field on a 429. `CONCURRENCY_LIMIT_EXCEEDED` carries no `Retry-After` and clears when an analytics query finishes\n5. Install the Python SDK as `paid-python`, the name in its README and `pyproject.toml`. The quickstart's `pip install paid` names a package we could not check\n\n## Questions\n\n### Which is better for AI agents, Lago or Paid?\n\nLago scores 65.7 (B) on agent readiness against Paid's 55.1 (C), and leads in 6 of 7 scored categories. Paid leads on security \u0026 auth.\n\n### Do Lago and Paid need an API key?\n\nLago needs an API key. Paid takes an API key or an OAuth sign-in.\n\n### Can an agent call Lago and Paid without installing anything?\n\nNo hosted endpoint is listed for Lago. Paid has a hosted endpoint at https://api.agentpaid.io/api/v2.\n\n### Are Lago and Paid 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 Paid.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/lago-vs-paid.json, and with the fewest tokens: https://www.anchorterminal.com/compare/lago-vs-paid.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"lago\", \"b\": \"paid\"}`. From a terminal: `anchor compare lago paid`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/lago.json and https://www.anchorterminal.com/api/v1/tools/paid.json\n\n## Other comparisons with Lago or Paid\n\n- [ATXP vs Lago](https://www.anchorterminal.com/compare/atxp-vs-lago.md)\n- [ATXP vs Paid](https://www.anchorterminal.com/compare/atxp-vs-paid.md)\n- [Lago vs Metronome](https://www.anchorterminal.com/compare/lago-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 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 Paid](https://www.anchorterminal.com/compare/metronome-vs-paid.md)\n- [Nevermined API + MCP vs Paid](https://www.anchorterminal.com/compare/nevermined-vs-paid.md)\n- [Orb vs Paid](https://www.anchorterminal.com/compare/orb-vs-paid.md)\n- [Paid vs Stripe API + MCP](https://www.anchorterminal.com/compare/paid-vs-stripe-mcp.md)\n- [Paid vs Tempo](https://www.anchorterminal.com/compare/paid-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- [Crossmint API + Docs MCP vs Paid](https://www.anchorterminal.com/compare/crossmint-vs-paid.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- [Paid vs Payman Genie MCP](https://www.anchorterminal.com/compare/paid-vs-payman.md)\n- [Adyen MCP server vs Paid](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-paid.md)\n- [Paid vs PayPal MCP server](https://www.anchorterminal.com/compare/paid-vs-paypal-mcp-server.md)\n- [Paid vs Skyfire API + MCP](https://www.anchorterminal.com/compare/paid-vs-skyfire.md)\n",
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