core.blue

core.blue MCP Server

The core.blue surface is an MCP server over streamable HTTP at https://mcp.core.blue/ that needs no account and no key (agents.md). It serves the core.blue manual and ten tools (about, read_topic, search_library, pricing, recommend, open_sandbox, close_sandbox, request_house, house_status, leave_feedback); open_sandbox opens a three-hour sandbox house. No OpenAPI, AsyncAPI or GraphQL contract is published; the machine-readable contract is the live tools/list.

GitHub

Documentation

📖
Documentation
https://core.blue/agents.md

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/core-blue/json-schema/core-blue-mcp-search-library-input.json

Other Resources

🔗
Examples
https://artifacts.apis.io/core-blue/examples/core-blue-mcp-tools-list-response.json
🔗
APIsJSON
https://artifacts.apis.io/core-blue/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/core-blue:core-blue-mcp-server"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

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API entry from apis.yml

apis.yml Raw ↑ 
aid: core-blue:core-blue-mcp-server
name: core.blue MCP Server
description: The core.blue surface is an MCP server over streamable HTTP at https://mcp.core.blue/ that
  needs no account and no key (agents.md). It serves the core.blue manual and ten tools (about, read_topic,
  search_library, pricing, recommend, open_sandbox, close_sandbox, request_house, house_status, leave_feedback);
  open_sandbox opens a three-hour sandbox house. No OpenAPI, AsyncAPI or GraphQL contract is published;
  the machine-readable contract is the live tools/list.
humanURL: https://core.blue/agents.md
baseURL: https://mcp.core.blue/
tags:
- MCP
- Agent Memory
properties:
- type: Documentation
  url: https://core.blue/agents.md
- type: JSONSchema
  url: json-schema/core-blue-mcp-search-library-input.json
- type: Examples
  url: examples/core-blue-mcp-tools-list-response.json