HackMD · OpenAPI Overlay 1.0.0

API Evangelist enhancements for HackMD OpenAPI

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

What the actions change

x-apievangelist-ratingx-api-catalogx-developer-portalx-rate-limitsdescription

Targets 3

$.info
$.servers
$.components.securitySchemes.token

OpenAPI Overlay

Raw ↑ 
overlay: 1.0.0
info:
  title: API Evangelist enhancements for HackMD OpenAPI
  version: 1.0.0
extends: openapi/hackmd-openapi-original.json
actions:
- target: $.info
  update:
    x-apievangelist-rating: enriched
    x-api-catalog: https://hackmd.io/.well-known/api-catalog
    x-developer-portal: https://hackmd.io/@docs/developer-portal
    x-rate-limits: rate-limits/hackmd-rate-limits.yml
- target: $.servers
  update:
  - url: https://api.hackmd.io/v1
    description: HackMD production API (absolute host; original spec uses relative /v1)
- target: $.components.securitySchemes.token
  update:
    description: 'HackMD personal API access token, sent as an Authorization Bearer
      header. Issue at Settings > API. Docs: https://hackmd.io/@docs/how-to-issue-an-api-token'

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/hackmd-openapi-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.