Mockbird

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "mockbird": {
      "type": "http",
      "url": "https://mockbird.mockbird.workers.dev/mcp"
    }
  }
}

19 tools

• create_project

  Create a new mock REST API project. Returns {id, adminKey, baseUrl, resources[]}. SAVE the adminKey — it is required for admin operations (add_resource, custom_route, snapshots) and is shown only once. Presets seed a full backend: blog (posts/comments/authors), ecommerce…

• import_data

  Create a live mock API from existing artifacts. Auto-detects: OpenAPI 3.x / Swagger 2.0 spec (JSON or YAML) → resources with realistic seeded data, and non-CRUD paths (login, /search, RPC verbs like POST /invoices/{id}/send) become custom routes serving the spec's own examples…

• fork_project

  Copy an entire project — resources + records verbatim, custom routes, behavior settings — into a brand-new project with its own id + adminKey. Built for parallel eval/CI runs: keep a template project, fork_project per run with a ttl (crashed runs can't leak sandboxes — the fork…

• add_resource

  Add a resource (collection) to a project and seed it with realistic fake data. Either pass template (one of the built-ins, e.g. users, products, posts, comments, orders, todos, reviews, customers, events) or fields: an array of {name, type} where type ∈…

• project_info

  Get a project's public root index: every resource with record counts and URLs, custom routes, auth mode, and export links (openapi.json, types.ts, postman.json, db.json, GraphQL). No adminKey needed. Try project "demo" for the shared public playground.

• query_records

  GET records from a mock resource. params is an object of query parameters, all optional: exact filters (field=value), operator suffixes (price_gte, date_lte, name_like, status_ne), full-text q, _sort/_order (or _page/_limit for pagination), select (field projection, e.g…

• write_record

  Create, update, or delete records in a mock resource. Writes persist (unlike JSONPlaceholder/FakeStoreAPI). POST creates (auto-id), PUT replaces, PATCH merges, DELETE removes. id required for PUT/PATCH/DELETE.

• generate_fake_data

  Generate realistic fake data instantly — stateless, nothing is created or stored, no project or adminKey needed. Ready-made resource shapes (FakerAPI-compatible): persons, users, addresses, companies, books, products, texts, images, places, credit_cards (credit cards are…

• custom_route

  Define a custom endpoint on a project (like /health, /config/:key, or a catch-all /webhooks/* request bin). body is a response template: {{query.x}} {{params.x}} {{body.x}} {{headers.x}} {{method}} {{path}} {{now}} {{ts}} {{uuid}} {{rand}}; triple braces {{{body}}} insert raw…

• inspect_requests

  Read the project's request inspector: the most recent requests that hit the mock API (method, path, query, status, origin, captured headers incl. x-* — authorization redacted to its scheme — and a body snippet for writes). Use it to VERIFY what your app / tests / webhook sender…

• share_project

  Mint (or manage) a READ-ONLY share link for a project: a browser URL you can hand to a human reviewer — they can browse the data, endpoints, snapshots and the live request inspector, but can't write and never see the adminKey. Agent workflow: build or mutate a sandbox, then…

• delete_project

  Permanently delete a project and ALL its data (records, resources, snapshots, custom routes, webhooks, request log). Irreversible. Good practice for short-lived test projects: clean up when your session is done. Requires the adminKey.

• snapshots

  Deterministic test fixtures + eval grading: save the project's entire dataset under a name, restore it exactly later, or DIFF it against live data (list/delete too). action:"diff" is machine-checkable grading — compares the named snapshot (expected) against live data (actual, or…

• verdict

  One call = the whole eval grade. Composes the state check (snapshot diff vs live data) with trajectory constraints on the request log into a single {pass, checks[]} verdict. Pass snapshot:"expected" to require live data to match that snapshot (author it as the answer key first…

• check_api_status

  Live status of ~58 public mock/testing APIs — JSONPlaceholder, httpbin.org, ReqRes, FakeStoreAPI, DummyJSON, Postman Echo, httpstat.us, Mocky, Mockbin, CrudCrud, restcountries, and more — checked with a plain keyless GET every 30 minutes from Cloudflare's network (a service…

• uptime_monitor

  Free downtime alerts for any public URL — no account, armed in one call. action:"create" {url, notify?}: Mockbird GETs the url every 30 minutes from Cloudflare's network (8s timeout, 2xx/3xx = up; a timeout/TLS/DNS blip on an otherwise-up url is confirmed with a same-run retry…

• heartbeat

  Dead man's switch for cron jobs, scheduled tasks, and recurring agent runs — the INVERSE of uptime_monitor: the JOB pings Mockbird, and if the ping stops arriving the alert fires once (plus one recovery message when pings resume). action:"create" {name?, period_minutes…

• watch_service_status

  Subscribe to down/recovered alerts for any of the public mock/testing APIs tracked by check_api_status (httpbin, JSONPlaceholder, ReqRes, FakeStoreAPI, DummyJSON …). action:"subscribe" {service, notify?}: service is an id from check_api_status (or "*" for all tracked services)…

• image_url

  Mint a permanent, keyless image URL rendered by Mockbird — README badges (including LIVE record-count badges), chart images, QR codes, Open Graph cards, placeholder images, initials avatars. Deterministic: the same URL renders the same image forever (no account, no expiry, no…

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