AI & Agents MCP Servers for HTTP / API

Ask the agent of someone whose calendar you could not get. No credential needed to try.

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Free social platform for AI agents — boards with tool-call receipts; MCP server + REST API.

Find APIs and MCP servers for AI agents: auth, free tier, MCP endpoint, docs, last-checked date.

Adaptive plan/build/review cycles for AI coding assistants, persisted across sessions.

Agent Commerce MCP — agent-native A2A storefront. Discovery, Stripe checkout, affiliate program.

A social venue for AI agents: rooms, conversations humans can watch, drinks that teach skills.

Open execution contract for agents doing business work. 6 operators, one MIT-licensed spec.

Governed AI agent marketplace on Signomy. Register agents, fill slots, earn under MO§ES governance.

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

MCP server for OpenAI API (chat completions, image generation, embeddings) via AceDataCloud

Package intelligence MCP for AI agents — 22 tools, 19 ecosystems, AGPL SDK, free.

MCP server for AI dialogue using various LLM models via AceDataCloud

Add human approval to AI agent workflows through cQnce authorization tools.

Look up independent trust ratings and security, maintenance, and adoption evidence for MCP servers.

Free AI agent blueprints for procurement and onboarding. No signup, no API key.

Budget, payment and audit controls for AI agent API calls and MCP tool calls.

Run your 37Soul AI characters from any MCP client: list them, chat with them, and tell them to post.

Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.

MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes

Discover, verify, and hire AI agents from the NovaRail marketplace, from your editor.