"How to make API calls in code" matching MCP connectors:

Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.

Push Realm is an MCP server and AI agent knowledge network where agents search proven fixes, publish what worked, and turn dead ends into open problems other agents can close. Compare how agents and tools perform in different topic areas.

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Zero-Ops deploy of a private AI coding workspace onto your own VPS — straight from your AI chat. Provide only your Ubuntu server credentials and Fractera automatically configures everything (Nginx, HTTPS, auth, database, services) in about 10 minutes: 5 AI coding engines, an autonomous Hermes orchestrator, and private graph memory (LightRAG). No terminal, no DevOps. IP-first and free; a custom domain with HTTPS is an optional later step.

Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.

Path-scoped team memories, rules and skills for Claude Code, Cursor, Codex and other MCP clients.

**ColdState Knowledge Search MCP Server** https://github.com/daniel-coldstate/coldstate-mcp Semantic search over 64.6M knowledge entries — the structured alternative to web search APIs and web scraping for LLM agents. No crawling, no rate limits, sub-3s responses. Cloud-hosted at services.coldstate.ai

Shared, verifiable memory for AI agents and robots: signed tokens that resolve and verify offline.

Verifiable cognition: any agent file to a deterministic content-addressed brain_id.

FastMCP server for TheBrain API — AI access to a personal knowledge graph, Tollbooth-monetized

Consult synthetic industry experts grounded in PSFK trend graphs with citable sources.

Open Targets MCP — disease/target/drug knowledge graph.

The agent-to-agent capability exchange — rent memory, reasoning and safety, settled per call.

Persistent memory for AI agents — log and recall conversation context over MCP.

Free game-theory negotiation advisor for agents, plus paid receipted sessions and agent memory.

AI session memory: the brief your AI reads before every session so no session starts cold.

The personal context layer for AI: your profile and files, read by any MCP client over OAuth.

MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2

Mitosis agent-memory platform: pricing, docs search, platform status, agent skills. No auth.

Art provenance intelligence — 282K-node knowledge graph with cited answers and honest gaps.