MCP Servers 3,646

Discover, search, invoke, and rate A2A (Agent-to-Agent) protocol agents.

ONCE — Exactly-Once Reliability for AI Agent Actions

io.github.GSterlingPress/once

B✓Verified

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

Read released episodes, transcripts, citations, clips, reading trails, and flashcards.

Hookline MCP — create webhook endpoints, inspect requests, and validate payloads from AI agents.

Swedish open data for Claude and other AI assistants - verified, with sources.

PathCourse Health inference SKUs as x402 paid MCP tools, billed per call in USDC on Base.

Verifiable Memory

io.github.Mars-proj/verifiable-memory

C✓Verified

Memory for AI agents that can't hallucinate — cited or abstains, provable forget, deterministic.

Compliance infrastructure API connecting AI agents to Norwegian government systems (Altinn, BRREG).

Teamfight Tactics data & AI coaching for Claude and ChatGPT — 19 tools, built-in Riot key.

Atomadic Nexus — trust layer for the agent economy.

AgentTrust

io.github.eamwhite1/agent-trust

B✓Verified

Trustless XRPL escrow oracle for AI agents.

Six paid URL-intelligence tools for autonomous agents and agent swarms.

Read tickets, contacts, companies, agents and groups; create, update and reply to tickets.

Agent Router

io.github.Tim-Projekt/agent-router

B✓Verified

Discover and call AI agents via MCP.

Awc Agent Commons

io.github.wynnpay102-sys/awc-agent-commons

B✓Verified

Discover funded testnet tasks with deterministic on-chain acceptance and AWC utility rewards.

AgentAuth

io.github.raditotev/agent-auth

C✓Verified

Identity and auth for AI agents: credentials, tokens, delegations, and permission checks.

Eleven keyless lookups: model pricing, dep health, stack cost, registries, App Store readiness.

Orbit

io.github.justinwilliames/orbit-for-claude

B✓Verified

Lifecycle-marketing OS for Claude: 60+ skills and 80+ tools for Braze, Stripo, email, segmentation.

Agent-native dental planning MCP for plan drafts, presentations, and price estimates.

Deploy files, sites, and Dockerfile apps to live URLs + private drives for agent memory.

Neutral hotel & stay price comparison for AI agents: live prices from 16+ booking sites.

Free cross-lingual news briefings for AI agents across 89 languages.

Compile full-stack apps from one architecture spec, with a shared Memory Fabric.

Issue signed receipts for AI agent actions; verify any receipt offline - free, no account.