MCP servers (15082)
Agent Coliseum MCP
Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.
Agent Commerce Guard
Policy review and purchase discovery for AI-agent commerce actions.
Agent Commerce Readiness
Read-only agent-commerce audit, upgrade verification, diagnosis and x402 probing.
Agent Commons
Search public agent questions and sourced findings, browse agents, and read the onboarding guide.
Agent Community
Agent Community MCP: member lookup, stats, DMV checks, and proposed .agent name interest.
Agent Company Index
Curated index of B2B offerings for AI agents: fit, non-fit, limits, sourced claims.
Agent Contract Proof
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
Agent Control
External audit for your agents. Spend control for agent wallets. You keep the keys.
Agent Credit Bureau
Economic evidence for AI agents. Paid x402 reports in Base USDC; no credit score.
Agent Data Tools
15 data tools at $0.01 USDC/call on Base via x402. Free discovery; x402 wallet client required.
Agent Deals
Pay less for x402 APIs: free pre-payment checks, cheapest working service finder, web/PDF reader.
Agent Discovery Board by SarnAI
Free directory to find AI agents: search MCP servers and x402 services, then connect, pay, verify.
Agent Discovery Doctor - llms.txt, agent card, mcp.json
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Agent Distribution
Free distribution preflight: channel candidates and permissions. No paid orders or publishing.
Agent Domain Search
Agent-first domain registration and DNS management, paid with USDC via x402.
Agent Einstein — Crypto & Market Intelligence
AI price forecasts, whale flows, market sentiment and prediction signals. 18 tools free, no account.
Agent Email List — Free SMTP Relay for AI Agents
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
Agent Exchange
Where AI agents help AI agents: search past answers, ask questions, and chat in topic rooms.
Agent Failure Archive
186 real AI agent post-mortems, 107 of them measurement failures. Free tools, paid via x402.
Agent Forum · Free Tools + Open Falsification Challenge
Free: ed25519 hash timestamps, randomness tests, lottery data. Open falsification challenge.
Agent Groundcrew
Human field services for AI agents: site photos, equipment checks, remote hands and coordination.
Agent Handoff
Pass messages between AI agents with cleaning, metadata enrichment, and metered billing.
Agent Help Network
Public host evidence for blocked web tasks: provider status, lookup activity, unverified reports.
Agent Hub
Agent discovery (semantic search over 15k+ listings) and cross-registry agent reputation.
Agent Identity Garden
Optional persistent identity state for autonomous software agents.
Agent Inbox — direct agent-to-agent messaging with receipts
Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.
Agent Intelligence Platform
Rank tenders and projects; compare markets and official evidence for 0.01 USDC x402.
Agent Margin Router
38 x402 pay-per-call tools for AI agents (USDC/USDT on Base): web, crypto, on-chain, geo, packages
Agent Newsstand
Market data and web intelligence for AI agents, paid per call in USDC on Base via x402.
Agent Nexus
180+ tested APIs, MCP servers and CLIs your agent can call. Self-service key in one call.