{
  "data": {
    "a": {
      "slug": "kestra",
      "name": "Kestra",
      "vendor": "Kestra Technologies",
      "vendorUrl": "https://kestra.io",
      "kind": "http-api",
      "category": "workflow-automation",
      "summary": "Kestra is an open-source workflow orchestrator from Kestra Technologies. Flows are written in YAML and run on a server the owner hosts, with a REST API, SDKs in four languages and flows exposed as MCP tools.",
      "url": "https://www.anchorterminal.com/tools/kestra",
      "markdownUrl": "https://www.anchorterminal.com/tools/kestra.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/kestra.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/kestra.json",
      "repo": "https://github.com/kestra-io/kestra",
      "license": "Apache-2.0 (open-source server and SDK repository). Enterprise Edition and Kestra Cloud are commercial",
      "transports": [
        "http",
        "streamable-http"
      ],
      "packages": [
        {
          "registry": "oci",
          "name": "kestra/kestra"
        },
        {
          "registry": "pypi",
          "name": "kestrapy"
        },
        {
          "registry": "npm",
          "name": "@kestra-io/kestra-sdk"
        }
      ],
      "auth": "mixed",
      "authNotes": "The open-source edition takes HTTP Basic auth with one username and password, set in `kestra.server.basic-auth` or on the setup page at first start. That credential has full access. Bearer API tokens, service accounts, OAuth, SSO and role-based access are in the Enterprise Edition and Kestra Cloud only. Access to open source is self-serve, by running the server. Webhook triggers are called with a key in the URL path.",
      "pricing": "freemium",
      "pricingNotes": "The open-source edition is free under Apache-2.0 with unlimited flows and executions, and an agent can start on it with no contract or account. Enterprise Edition is an annual subscription per instance through sales, with no public price. Kestra Cloud is by access request, with 14 days free and no card, then billed on task runs and Cloud runner time at rates that are not published (https://kestra.io/pricing, checked 2026-10-08).",
      "priceSummary": "Freemium",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, the OpenAPI spec or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 29427,
        "npmWeekly": 244,
        "pypiWeekly": 170,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://kestra.io/docs",
      "llmsTxt": "https://kestra.io/llms.txt",
      "openapi": "https://kestra.io/kestra.yml",
      "capabilities": [
        "automation.workflows",
        "automation.code",
        "automation.webhooks",
        "automation.apps",
        "agent.tools"
      ],
      "tags": [
        "self-hosted",
        "open-source",
        "local",
        "hosted",
        "freemium",
        "openapi",
        "llms-txt",
        "mcp",
        "python",
        "typescript",
        "java",
        "go",
        "webhooks",
        "enterprise",
        "soc2"
      ],
      "lastRelease": "2026-10-05",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 63.6,
        "grade": "B",
        "agentReady": false,
        "rank": 351,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 2,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 73,
          "maintenance": 93,
          "payments": 50,
          "reliability": 89,
          "schema": 82,
          "security": 41,
          "transparency": 69
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": -7,
        "negativeNotes": [
          "Five advisories rated critical were published on the repository in six months. GHSA-365w-2m69-mp9x (CVE-2026-34612, remote code execution through SQL injection, 30 March 2026), GHSA-5vc5-wxxq-3fjx and GHSA-2q47-568g-9h4f (CVE-2026-49869 and CVE-2026-53576, unauthenticated remote code execution through authentication filter bypass, 3 June 2026), and GHSA-rjhm-qm6w-m7x9 and GHSA-j5cv-8rw9-vv2p (unauthenticated remote code execution and authentication bypass, 29 September 2026). All are fixed, in 1.3.38 and 1.0.60 at the latest, and the maintainers published each one, so the deduction is reduced (https://github.com/kestra-io/kestra/security/advisories).",
          "Two further high advisories affected the default open-source setup. GHSA-hrr4-xg8h-5p6f, an unauthenticated gRPC control plane on port 50051, fixed in 2.0.3 and published 29 September 2026, and GHSA-94pv-f379-3gp3, a revoked administrator credential that stayed valid, fixed in 1.3.41 and published 6 October 2026 (https://github.com/kestra-io/kestra/security/advisories)."
        ],
        "verdict": "Kestra's open-source edition has a 216-operation OpenAPI spec, Markdown docs for agents and weekly patch releases on two long-term support lines. Its only credential is one basic-auth username and password with full access, and five critical advisories were published between March and September 2026, all fixed.",
        "bestFor": "Engineering and data teams that want declarative YAML flows with scripts in any language, run on their own infrastructure.",
        "strengths": [
          "OpenAPI 3.0.1 spec for the open-source API with 216 operations, 213 of them documenting 401, 403 and 500 as problem+json",
          "Every docs page is served as Markdown by adding `.md`, with `llms.txt` and `llms-full.txt`",
          "32 releases between 15 July and 5 October 2026, with patches each week on the 1.3 and 2.0 long-term support lines",
          "Any flow becomes an MCP tool through `McpToolTrigger`, with read-only, destructive and idempotent hints set per flow",
          "Apache-2.0 server, and usage reporting documented field by field with two switches to turn it off"
        ],
        "weaknesses": [
          "The open-source edition has one basic-auth username and password. API tokens, service accounts, RBAC and audit logs need Enterprise or Cloud",
          "Five critical advisories from 30 March to 29 September 2026, four of them unauthenticated remote code execution or authentication bypass, all fixed",
          "Kestra Cloud is request-access with no public price, and Enterprise is sold by annual contract through sales",
          "No rate limits and no idempotency key on the API. The correlation ID pattern needs a guard written into the flow",
          "The docs say `kestrapy` 2.0.1 imports `regex` without declaring it, so a plain install fails on import"
        ],
        "agentNotes": [
          "Run 2.0.5 or 1.3.42 or later. Earlier builds carry unauthenticated remote code execution advisories fixed in 1.3.38 and 2.0.3",
          "Set `kestra.server.basic-auth` in the config file before first start. Without it the setup page is open to anyone who reaches the port",
          "Put the tenant in the path. Open-source instances use `main`, as in `/api/v1/main/executions/{namespace}/{id}`",
          "Send flow inputs as multipart form fields, and add `wait=true` to get the finished execution in the same call",
          "Keep port 8081 off any shared network. The management endpoints there skip the API's basic auth"
        ],
        "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": 63.6
          }
        ],
        "editorialScores": {
          "ergonomics": 73,
          "maintenance": 93,
          "payments": 50,
          "reliability": 89,
          "schema": 82,
          "security": 41,
          "transparency": 86
        },
        "provenanceScore": 51
      },
      "connect": {
        "install": "docker run --pull=always --rm -it -p 8080:8080 --user=root --name kestra -v kestra_data:/app/storage -v kestra_db:/app/data -v /var/run/docker.sock:/var/run/docker.sock -v /tmp:/tmp -e KESTRA_PLUGINS_AUTO_INSTALL_ENABLED=true kestra/kestra:latest-slim server local",
        "http": "curl -X POST -u 'admin@kestra.io:kestra' http://localhost:8080/api/v1/main/executions/company.team/hello_world",
        "claudeCode": "claude mcp add \u003cserver-id\u003e \u003cserver-url\u003e --transport http --header \"Authorization: Basic $(echo -n 'username:password' | base64)\""
      },
      "letme": {
        "capability": "https://letme.dev/automation.workflows",
        "tool": "https://letme.dev/kestra"
      },
      "area": "business",
      "provenance": {
        "legalEntity": "Kestra Technologies SAS",
        "domain": "kestra.io",
        "domainRegistered": "2019-12-18",
        "endpointOnVendorDomain": false,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://github.com/kestra-io/kestra/releases",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The Cloud terms name Kestra Technologies SAS (RCS 900 427 873), 81 rue du Pré Catelan, 59110 La Madeleine, France, and Kestra Technologies Inc., a Delaware corporation, for customers billed in the Americas.",
          "No terms or privacy link is given because the edition graded is Apache-2.0 software the owner runs. The Kestra Cloud Terms of Service and Kestra Cloud Privacy Policy (both 14 September 2026) say they do not cover the open-source project, and the privacy policy at kestra.io/privacy-policy covers only the website.",
          "The API answers on the owner's own host. Only the documentation MCP server (api.kestra.io) and the usage reports go to a Kestra domain.",
          "https://kestra.io/.well-known/security.txt names security@kestra.io and the GitHub advisory form, and expires on 26 August 2028.",
          "RDAP for kestra.io gives a registration date of 2019-12-18.",
          "status.kestra.io did not answer our requests on 8 October 2026 and no status page is linked from the pricing, security or Cloud pages."
        ],
        "score": 51
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/kestra.json"
    },
    "answer": "Kestra scores 63.6 (B) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 5 of 7 scored categories. Windmill API + MCP leads on security \u0026 auth.",
    "b": {
      "slug": "windmill",
      "name": "Windmill API + MCP",
      "vendor": "Windmill Labs",
      "vendorUrl": "https://www.windmill.dev",
      "kind": "http-api",
      "category": "workflow-automation",
      "summary": "Code-first engine for scripts, flows and internal apps in 20+ languages, written in Rust, on Windmill Cloud or self-hosted.",
      "url": "https://www.anchorterminal.com/tools/windmill",
      "markdownUrl": "https://www.anchorterminal.com/tools/windmill.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/windmill.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/windmill.json",
      "repo": "https://github.com/windmill-labs/windmill",
      "license": "AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://app.windmill.dev/api",
      "packages": [
        {
          "registry": "npm",
          "name": "windmill-client"
        },
        {
          "registry": "pypi",
          "name": "wmill"
        }
      ],
      "auth": "mixed",
      "authNotes": "Bearer user tokens with optional scopes (`{domain}:{action}[:{path}]`, e.g. `jobs:run:flows`) and expiry. MCP by OAuth at /api/mcp/gateway, or a token either in the URL (`?token=`) or in an Authorization header. Admins can make the MCP endpoints refuse tokens in URLs.",
      "pricing": "freemium",
      "pricingNotes": "Self-hosted Community Edition is free with unlimited executions (up to 50 users, 3 workspaces). Self-hosted Enterprise from $120 a month, priced as developer seats $20 a month, operators $10 and compute at $50 a month per standard 2 GB worker. Pro gets the same terms for companies under 10 staff and $250,000 revenue. Cloud has a free tier and paid Team and Enterprise workspaces billed on seats and compute (https://www.windmill.dev/pricing).",
      "priceSummary": "$20 / seat-mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 18070,
        "npmWeekly": 126287,
        "pypiWeekly": 218343,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://www.windmill.dev/docs",
      "llmsTxt": "https://www.windmill.dev/llms.txt",
      "openapi": "https://app.windmill.dev/api/openapi.yaml",
      "capabilities": [
        "automation.workflows",
        "automation.code",
        "automation.webhooks",
        "automation.embedded",
        "agent.tools"
      ],
      "tags": [
        "hosted",
        "self-hosted",
        "open-source",
        "local",
        "freemium",
        "mcp",
        "llms-txt",
        "openapi",
        "python",
        "typescript",
        "webhooks",
        "enterprise"
      ],
      "lastRelease": "2026-10-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 55.9,
        "grade": "C",
        "agentReady": false,
        "rank": 579,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 8,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 73,
          "maintenance": 87,
          "payments": 35,
          "reliability": 40,
          "schema": 79,
          "security": 60,
          "transparency": 65
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -5,
        "negativeNotes": [
          "CVE-2026-23696, SQL injection in folder ownership management for any low-privilege user in Windmill 1.276.0 to 1.603.2, CVSS 4.0 score 9.4, exposing JWT secrets and admin identifiers. Fixed in 1.603.3 and published by NVD on 7 April 2026 (https://github.com/advisories/GHSA-34m2-qrpf-6v7q).",
          "GHSA-24fr-44f8-fqwg, published 2 March 2026, high. SUPERADMIN_SECRET could be read publicly through RCE on versions before 1.603.3. CVE-2026-22683, missing authorisation in 1.56.0 to 1.614.0, rated high on 7 April 2026. All fixed, so the deduction is reduced (https://github.com/windmill-labs/windmill/security/advisories, https://github.com/advisories?query=windmill)."
        ],
        "verdict": "Token scopes down to a single script path, with expiry. The default MCP URL puts the token in `?token=` unless a superadmin turns that off.",
        "bestFor": "Engineering teams who'd rather write steps in Python, TypeScript, Go or SQL and expose them as tools.",
        "strengths": [
          "Token scopes down to a single script path, with expiry",
          "OpenAPI 3.0.3 with 913 operations and Apache-2.0 clients for TypeScript, Python, Go and Rust",
          "Every script and flow is an MCP tool, filterable by folder and favourites",
          "97 tagged releases in 90 days, latest v1.821.0 on 1 October 2026",
          "Free unlimited executions on Cloud free workspaces and self-hosted Community Edition"
        ],
        "weaknesses": [
          "The default MCP URL puts the token in `?token=` unless a superadmin turns that off",
          "CVE-2026-23696, a critical SQL injection fixed in 1.603.3, had no Windmill advisory",
          "No published API rate limits, 429 guidance or uptime SLA",
          "The OpenAPI file documents errors for only about 30 operations",
          "No SECURITY.md or security.txt"
        ],
        "agentNotes": [
          "Give the agent a token scoped to `jobs:run` on one folder rather than a full user token",
          "Connect over the OAuth gateway or send the token in a header so it stays out of logs",
          "With a multi-workspace token, pass `workspace_id` on every workspace tool",
          "Call `searchDocs` before guessing at a flag or config key, then `readDocsPage` with the returned URL",
          "Poll the job by ID after `runScriptByPath` for long jobs instead of waiting on the call"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 55.9
          }
        ],
        "editorialScores": {
          "ergonomics": 73,
          "maintenance": 87,
          "payments": 35,
          "reliability": 40,
          "schema": 79,
          "security": 60,
          "transparency": 51
        },
        "provenanceScore": 78
      },
      "connect": {
        "http": "curl \"https://app.windmill.dev/api/w/$WM_WORKSPACE/scripts/list\" -H \"Authorization: Bearer $WM_TOKEN\"",
        "claudeCode": "claude mcp add --transport http windmill https://app.windmill.dev/api/mcp/gateway",
        "config": {
          "mcpServers": {
            "windmill": {
              "headers": {
                "Authorization": "Bearer ${WM_TOKEN}"
              },
              "url": "https://app.windmill.dev/api/mcp/w/${WM_WORKSPACE}/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/automation.workflows",
        "tool": "https://letme.dev/windmill"
      },
      "area": "business",
      "unitPrices": [
        {
          "item": "Developer seat (Enterprise)",
          "unit": "seat-month",
          "usd": 20
        },
        {
          "item": "Operator seat (Enterprise)",
          "unit": "seat-month",
          "usd": 10,
          "note": "run-only users and external JWT users"
        },
        {
          "item": "Compute (Enterprise)",
          "unit": "compute-unit",
          "usd": 25,
          "note": "$50 a month per standard 2 GB worker, which is 2 CU"
        },
        {
          "item": "Enterprise minimum",
          "unit": "month",
          "usd": 120,
          "note": "from price shown on the pricing page"
        }
      ],
      "provenance": {
        "legalEntity": "Windmill Labs, Inc.",
        "domain": "windmill.dev",
        "domainRegistered": "2022-01-06",
        "endpointOnVendorDomain": true,
        "terms": "https://www.windmill.dev/terms",
        "privacy": "https://www.windmill.dev/privacy_policy",
        "statusPage": "https://status.windmill.dev",
        "changelog": "https://www.windmill.dev/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "status.windmill.dev redirects to an UptimeRobot page."
        ],
        "score": 78
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/windmill.json",
      "live": {
        "slug": "windmill",
        "probe": {
          "target": "https://app.windmill.dev/api",
          "method": "get",
          "lastAt": "2026-10-09T11:29:20.458816037Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 183,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 190,
          "p95ms24h": 272,
          "samples24h": 259,
          "samples30d": 2308,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 122,
              "ok": 122
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.windmill.dev",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:58:41.048851882Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "windmill-labs/windmill",
            "version": "v1.828.0",
            "released": "2026-10-08",
            "seenAt": "2026-10-08T16:34:57.523072328Z"
          },
          {
            "registry": "npm",
            "name": "windmill-client",
            "version": "1.828.0",
            "seenAt": "2026-10-08T16:34:56.930406591Z"
          },
          {
            "registry": "pypi",
            "name": "wmill",
            "version": "1.828.0",
            "released": "2026-10-08",
            "seenAt": "2026-10-08T16:34:57.315141476Z"
          }
        ],
        "githubStars": 18137,
        "npmWeekly": 116203,
        "pypiWeekly": 213676,
        "securityTxt": {
          "url": "https://windmill.dev/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:59.869602981Z"
        },
        "llmsTxt": {
          "url": "https://www.windmill.dev/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:01:00.866846241Z"
        },
        "domain": {
          "domain": "windmill.dev",
          "registered": "2022-01-06",
          "source": "https://pubapi.registry.google/rdap/domain/windmill.dev",
          "checkedAt": "2026-10-04T13:08:55.755645623Z"
        },
        "pages": [
          {
            "url": "https://www.windmill.dev/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:36.542918048Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "f07472d4d072"
          },
          {
            "url": "https://www.windmill.dev/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:38.770165489Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "afa04f8b73f5"
          },
          {
            "url": "https://www.windmill.dev/privacy_policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:40.737161697Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d11624ab86ec"
          },
          {
            "url": "https://www.windmill.dev/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:42.693903067Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e3b0c44298fc"
          }
        ],
        "updatedAt": "2026-10-09T11:29:20.458816037Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Kestra Technologies",
        "b": "Windmill Labs",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://app.windmill.dev/api",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache-2.0 (open-source server and SDK repository). Enterprise Edition and Kestra Cloud are commercial",
        "b": "AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts",
        "name": "Licence"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-05",
        "b": "2026-10-01",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "couldn't be read",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "29k stars, 244 npm/wk, 170 PyPI/wk",
        "b": "18k stars, 126k npm/wk, 218k PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Kestra scores 63.6 (B) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 5 of 7 scored categories. Windmill API + MCP leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Kestra or Windmill API + MCP?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do Kestra and Windmill API + MCP need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for Kestra. Windmill API + MCP has a hosted endpoint at https://app.windmill.dev/api.",
        "question": "Can an agent call Kestra and Windmill API + MCP without installing anything?"
      },
      {
        "answer": "Yes. Kestra is open source (Apache-2.0 (open-source server and SDK repository). Enterprise Edition and Kestra Cloud are commercial). Windmill API + MCP is open source (AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts).",
        "question": "Are Kestra and Windmill API + MCP open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 89 against 40",
          "Payments \u0026 pricing, 50 against 35",
          "Maintenance \u0026 community, 93 against 87"
        ],
        "also": null,
        "goodFor": "Engineering and data teams that want declarative YAML flows with scripts in any language, run on their own infrastructure.",
        "slug": "kestra",
        "watchFor": "The open-source edition has one basic-auth username and password. API tokens, service accounts, RBAC and audit logs need Enterprise or Cloud"
      },
      {
        "aheadOn": [
          "Security \u0026 auth, 60 against 41"
        ],
        "also": [
          "A hosted endpoint, with nothing to install"
        ],
        "goodFor": "Engineering teams who'd rather write steps in Python, TypeScript, Go or SQL and expose them as tools.",
        "slug": "windmill",
        "watchFor": "The default MCP URL puts the token in `?token=` unless a superadmin turns that off"
      }
    ],
    "job": {
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      "name": "Automation workflows"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/activepieces-vs-kestra.json",
        "title": "Activepieces API + MCP vs Kestra",
        "url": "https://www.anchorterminal.com/compare/activepieces-vs-kestra"
      },
      {
        "json": "https://www.anchorterminal.com/compare/activepieces-vs-windmill.json",
        "title": "Activepieces API + MCP vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/activepieces-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gumloop-vs-kestra.json",
        "title": "Gumloop vs Kestra",
        "url": "https://www.anchorterminal.com/compare/gumloop-vs-kestra"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gumloop-vs-windmill.json",
        "title": "Gumloop vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/gumloop-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-make.json",
        "title": "Kestra vs Make API + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-make"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-n8n.json",
        "title": "Kestra vs n8n API + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-n8n"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-paragon.json",
        "title": "Kestra vs Paragon ActionKit + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-paragon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-pipedream.json",
        "title": "Kestra vs Pipedream API + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-pipedream"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-power-automate.json",
        "title": "Kestra vs Microsoft Power Automate",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-power-automate"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-tray.json",
        "title": "Kestra vs Tray.ai API + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-tray"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kestra-vs-workato.json",
        "title": "Kestra vs Workato API + MCP",
        "url": "https://www.anchorterminal.com/compare/kestra-vs-workato"
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        "json": "https://www.anchorterminal.com/compare/make-vs-windmill.json",
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      {
        "json": "https://www.anchorterminal.com/compare/n8n-vs-windmill.json",
        "title": "n8n API + MCP vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/n8n-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipedream-vs-windmill.json",
        "title": "Pipedream API + MCP vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/pipedream-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/power-automate-vs-windmill.json",
        "title": "Microsoft Power Automate vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/power-automate-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/tray-vs-windmill.json",
        "title": "Tray.ai API + MCP vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/tray-vs-windmill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/windmill-vs-workato.json",
        "title": "Windmill API + MCP vs Workato API + MCP",
        "url": "https://www.anchorterminal.com/compare/windmill-vs-workato"
      },
      {
        "json": "https://www.anchorterminal.com/compare/paragon-vs-windmill.json",
        "title": "Paragon ActionKit + MCP vs Windmill API + MCP",
        "url": "https://www.anchorterminal.com/compare/paragon-vs-windmill"
      }
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    "scores": [
      {
        "by": 49,
        "edge": "kestra",
        "kestra": 89,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16,
        "windmill": 40
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 3,
        "edge": "kestra",
        "kestra": 82,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13,
        "windmill": 79
      },
      {
        "by": 0,
        "edge": "",
        "kestra": 73,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13,
        "windmill": 73
      },
      {
        "by": 19,
        "edge": "windmill",
        "kestra": 41,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14,
        "windmill": 60
      },
      {
        "by": 15,
        "edge": "kestra",
        "kestra": 50,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10,
        "windmill": 35
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 6,
        "edge": "kestra",
        "kestra": 93,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7,
        "windmill": 87
      },
      {
        "by": 4,
        "edge": "kestra",
        "kestra": 69,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7,
        "windmill": 65
      }
    ],
    "summary": "Kestra scores 63.6 (B) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 5 of 7 scored categories. Windmill API + MCP leads on security \u0026 auth. Both do automation workflows.",
    "verdicts": {
      "kestra": "Kestra's open-source edition has a 216-operation OpenAPI spec, Markdown docs for agents and weekly patch releases on two long-term support lines. Its only credential is one basic-auth username and password with full access, and five critical advisories were published between March and September 2026, all fixed.",
      "windmill": "Token scopes down to a single script path, with expiry. The default MCP URL puts the token in `?token=` unless a superadmin turns that off."
    }
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  "markdown": "Kestra scores 63.6 (B) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 5 of 7 scored categories. Windmill API + MCP leads on security \u0026 auth. Both do automation workflows.\n\n- Kestra: grade B, 63.6/100, rank #351 of 842. Markdown https://www.anchorterminal.com/tools/kestra.md · JSON https://www.anchorterminal.com/api/v1/tools/kestra.json\n- Windmill API + MCP: grade C, 55.9/100, rank #579 of 842. Markdown https://www.anchorterminal.com/tools/windmill.md · JSON https://www.anchorterminal.com/api/v1/tools/windmill.json\n\n## Which one, for what\n\n### Kestra (B)\n\nGood for: Engineering and data teams that want declarative YAML flows with scripts in any language, run on their own infrastructure.\n\nAhead on:\n- Reliability, 89 against 40\n- Payments \u0026 pricing, 50 against 35\n- Maintenance \u0026 community, 93 against 87\n\nWatch for: The open-source edition has one basic-auth username and password. API tokens, service accounts, RBAC and audit logs need Enterprise or Cloud\n\n### Windmill API + MCP (C)\n\nGood for: Engineering teams who'd rather write steps in Python, TypeScript, Go or SQL and expose them as tools.\n\nAhead on:\n- Security \u0026 auth, 60 against 41\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: The default MCP URL puts the token in `?token=` unless a superadmin turns that off\n\n\n## Score by category\n\n| Category | Weight | Kestra | Windmill API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 89 | 40 | Kestra +49 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 82 | 79 | Kestra +3 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 73 | even |\n| Security \u0026 auth | 14% (17.5 this run) | 41 | 60 | Windmill API + MCP +19 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 35 | Kestra +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 93 | 87 | Kestra +6 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 69 | 65 | Kestra +4 |\n| Negative events | ≤15 | -7 | -5 | |\n| **Total** | | **63.6 · B** | **55.9 · C** | |\n\n## Facts side by side\n\n| Fact | Kestra | Windmill API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Kestra Technologies | Windmill Labs |\n| Hosted endpoint | no (local only) | `https://app.windmill.dev/api` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 (open-source server and SDK repository). Enterprise Edition and Kestra Cloud are commercial | AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-05 | 2026-10-01 |\n| Terms last updated | no document linked | couldn't be read |\n| Privacy policy last updated | no document linked | no date given |\n| Customer content may train models |  | couldn't be read |\n| Terms restrict automated access |  | couldn't be read |\n| Terms restrict benchmarking |  | couldn't be read |\n| Terms or service can change without notice |  | couldn't be read |\n| Arbitration or class-action waiver |  | couldn't be read |\n| Popularity | 29k stars, 244 npm/wk, 170 PyPI/wk | 18k stars, 126k npm/wk, 218k PyPI/wk |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**Kestra.** Kestra's open-source edition has a 216-operation OpenAPI spec, Markdown docs for agents and weekly patch releases on two long-term support lines. Its only credential is one basic-auth username and password with full access, and five critical advisories were published between March and September 2026, all fixed.\n\n**Windmill API + MCP.** Token scopes down to a single script path, with expiry. The default MCP URL puts the token in `?token=` unless a superadmin turns that off.\n\n## Before you call either\n\n### Kestra\n\n1. Run 2.0.5 or 1.3.42 or later. Earlier builds carry unauthenticated remote code execution advisories fixed in 1.3.38 and 2.0.3\n2. Set `kestra.server.basic-auth` in the config file before first start. Without it the setup page is open to anyone who reaches the port\n3. Put the tenant in the path. Open-source instances use `main`, as in `/api/v1/main/executions/{namespace}/{id}`\n4. Send flow inputs as multipart form fields, and add `wait=true` to get the finished execution in the same call\n5. Keep port 8081 off any shared network. The management endpoints there skip the API's basic auth\n\n### Windmill API + MCP\n\n1. Give the agent a token scoped to `jobs:run` on one folder rather than a full user token\n2. Connect over the OAuth gateway or send the token in a header so it stays out of logs\n3. With a multi-workspace token, pass `workspace_id` on every workspace tool\n4. Call `searchDocs` before guessing at a flag or config key, then `readDocsPage` with the returned URL\n5. Poll the job by ID after `runScriptByPath` for long jobs instead of waiting on the call\n\n## Questions\n\n### Which is better for AI agents, Kestra or Windmill API + MCP?\n\nKestra scores 63.6 (B) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 5 of 7 scored categories. Windmill API + MCP leads on security \u0026 auth.\n\n### Do Kestra and Windmill API + MCP need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Kestra and Windmill API + MCP without installing anything?\n\nNo hosted endpoint is listed for Kestra. Windmill API + MCP has a hosted endpoint at https://app.windmill.dev/api.\n\n### Are Kestra and Windmill API + MCP open source?\n\nYes. Kestra is open source (Apache-2.0 (open-source server and SDK repository). Enterprise Edition and Kestra Cloud are commercial). Windmill API + MCP is open source (AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/kestra-vs-windmill.json, and with the fewest tokens: https://www.anchorterminal.com/compare/kestra-vs-windmill.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"kestra\", \"b\": \"windmill\"}`. From a terminal: `anchor compare kestra windmill`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/kestra.json and https://www.anchorterminal.com/api/v1/tools/windmill.json\n\n## Other comparisons with Kestra or Windmill API + MCP\n\n- [Activepieces API + MCP vs Kestra](https://www.anchorterminal.com/compare/activepieces-vs-kestra.md)\n- [Activepieces API + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/activepieces-vs-windmill.md)\n- [Gumloop vs Kestra](https://www.anchorterminal.com/compare/gumloop-vs-kestra.md)\n- [Gumloop vs Windmill API + MCP](https://www.anchorterminal.com/compare/gumloop-vs-windmill.md)\n- [Kestra vs Make API + MCP](https://www.anchorterminal.com/compare/kestra-vs-make.md)\n- [Kestra vs n8n API + MCP](https://www.anchorterminal.com/compare/kestra-vs-n8n.md)\n- [Kestra vs Paragon ActionKit + MCP](https://www.anchorterminal.com/compare/kestra-vs-paragon.md)\n- [Kestra vs Pipedream API + MCP](https://www.anchorterminal.com/compare/kestra-vs-pipedream.md)\n- [Kestra vs Microsoft Power Automate](https://www.anchorterminal.com/compare/kestra-vs-power-automate.md)\n- [Kestra vs Tray.ai API + MCP](https://www.anchorterminal.com/compare/kestra-vs-tray.md)\n- [Kestra vs Workato API + MCP](https://www.anchorterminal.com/compare/kestra-vs-workato.md)\n- [Make API + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/make-vs-windmill.md)\n- [n8n API + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/n8n-vs-windmill.md)\n- [Pipedream API + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/pipedream-vs-windmill.md)\n- [Microsoft Power Automate vs Windmill API + MCP](https://www.anchorterminal.com/compare/power-automate-vs-windmill.md)\n- [Tray.ai API + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/tray-vs-windmill.md)\n- [Windmill API + MCP vs Workato API + MCP](https://www.anchorterminal.com/compare/windmill-vs-workato.md)\n- [Paragon ActionKit + MCP vs Windmill API + MCP](https://www.anchorterminal.com/compare/paragon-vs-windmill.md)\n",
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