find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/deadends-dev:deadends-dev-match-json-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: deadends.dev Match.json API
  description: Structured failure knowledge for AI agents. Query error signatures to find dead ends, workarounds, and error transition graphs.
  version: 1.0.0
  contact:
    url: https://github.com/dbwls99706/deadends.dev
servers:
- url: https://deadends.dev/api/v1
tags:
- name: Match.json
paths:
  /match.json:
    get:
      summary: Lightweight error matching
      description: 'Compact file with all error signatures and regexes. Load into context window and regex-match your error. On match, fetch the full canon via the api_url. Compact field names: id=canon ID, sig=error signature, re=regex pattern, ok=resolvable (true/partial/false), rate=fix success rate, conf=confidence, de=dead end count, wa=workaround count, url=full JSON API URL.'
      operationId: matchErrors
      responses:
        '200':
          description: Compact matching patterns
          content:
            application/json:
              schema:
                type: object
                properties:
                  version:
                    type: string
                  total:
                    type: integer
                  generated:
                    type: string
                    format: date-time
                  usage:
                    type: string
                  patterns:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                          description: Canon ID
                        sig:
                          type: string
                          description: Error signature
                        re:
                          type: string
                          description: Regex pattern
                        domain:
                          type: string
                        ok:
                          type: string
                          enum:
                          - 'true'
                          - partial
                          - 'false'
                          description: Resolvable
                        rate:
                          type: number
                          description: Fix success rate
                        conf:
                          type: number
                          description: Confidence score
                        de:
                          type: integer
                          description: Dead end count
                        wa:
                          type: integer
                          description: Workaround count
                        url:
                          type: string
                          format: uri
                          description: Full JSON API URL
      tags:
      - Match.json