Cyberelf Labs

Whetstone Tools API

Verifier-grounded evaluation tools for AI systems. Provides stateless, unauthenticated workbench and report-card endpoints.

GitHub

Other Resources

🔗
APIsJSON
https://artifacts.apis.io/cyberelf-link/apis.yml

Work with this as data

Every API 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 apis

7 MCP tools reach this
  • 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/cyberelf-link:whetstone-tools-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.

API entry from apis.yml

apis.yml Raw ↑ 
name: Whetstone Tools API
description: Verifier-grounded evaluation tools for AI systems. Provides stateless, unauthenticated workbench
  and report-card endpoints.
humanURL: https://whetstone.cyberelf.link
baseURL: https://whetstone.cyberelf.link
properties: []
aid: cyberelf-link:whetstone-tools-api