CrunchDAO · OpenAPI Overlay 1.0.0

API Evangelist enhancements for CrunchDAO Tournament API

3 actions 3 updates documentation extends openapi/crunchdao-tournament-openapi.json
Derived by API Evangelist Built from the contracts CrunchDAO publishes. CrunchDAO did not publish this file.
View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-enrichedx-api-providerx-authenticationx-conventionsx-error-catalogx-lifecycledescriptionurl

Targets 3

$.info
$.servers
$.externalDocs

OpenAPI Overlay

Raw ↑ 
overlay: 1.0.0
info:
  title: API Evangelist enhancements for CrunchDAO Tournament API
  version: 1.0.0
extends: openapi/crunchdao-tournament-openapi.json
actions:
- target: $.info
  update:
    x-apievangelist-enriched: '2026-07-18'
    x-api-provider: CrunchDAO
    x-authentication: authentication/crunchdao-authentication.yml
    x-conventions: conventions/crunchdao-conventions.yml
    x-error-catalog: errors/crunchdao-problem-types.yml
    x-lifecycle: lifecycle/crunchdao-lifecycle.yml
- target: $.servers
  update:
  - url: https://api.hub.crunchdao.com
    description: CrunchDAO Tournament API (HTTPS; the generated spec advertises http)
- target: $.externalDocs
  update:
    description: CrunchDAO developer documentation
    url: https://docs.crunchdao.com/technical/tournament-api

Work with this as data

Every overlay here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for openapi overlays

4 MCP tools reach this
  • find_overlaysBrowse and filter every overlay in the catalog.
  • 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 overlay 
curl "https://apis.io/api/v1/overlays/crunchdao-tournament-overlay"
All openapi overlays 
curl "https://apis.io/api/v1/overlays?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.