MCP Server Registry
Browse 41,408 servers scanned across 184 detection rules
x402 Bazaar Listing Monitor
Checks x402 Bazaar resource listings against the public discovery catalog and flags drops.
x402card: Virtual Cards + Freeland eSIM
Issue and top up x402 virtual cards or buy Freeland travel eSIMs with Base USDC.
x402 Checker (AI Nock)
Free check; paid report $0.05; check_batch/who/md/headers/json/sanctions/domain/email/bizdays $0.01.
x402 Counterparty Score
Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.
x402 Discovery MCP
Discover x402 APIs by capability, price & trust. Powered by x402Scout.
x402 economy tools
Measured x402 ecosystem data, facilitator reliability, and live endpoint checks.
x402engine
MCP server connecting AI agents to 108 pay-per-call APIs through x402: 72 LLMs plus image, video, audio, web, code, crypto, wallet, travel, and IPFS. Pay per request in USDC on Base or Solana, or USDm on MegaETH.
x402 Ethereum RPC
Ethereum mainnet JSON-RPC paid per call in USDC on Base. No account, no API key: the wallet pays.
x402 Facilitator Proxy
Multi-tenant HTTP 402 infrastructure gateway and stdio MCP server for machine payments.
x402-farm
64 x402 tools: cheap LLM $0.002, web+news search, French residential-IP scraping, FR/UK/US data.
x402 Gateway — Inspect Paid API Terms
Discover x402 paid APIs and inspect fresh payment requirements before authorizing spend.
x402image
x402 image tools (USDC/Base): remove_background/upscale $0.02, resize/optimize $0.005; URL in/out
x402 JSON Repair
Pay-per-call JSON repair + JSON Schema validation for AI agents (USDC on Base, x402).
x402-market
Let AI agents pay-per-call for any HTTP API via x402 on Base mainnet. One tool: pay_and_call.
x402 Market Intelligence + Russian Web Access
Check x402 endpoints before paying: liveness, price history, farm detection. Plus RU web access.
x402-mcp-server
x402 Payment Gateway for AI Agents — enable micropayments between agents using USDC on Solana
x402 MCP Starter
Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.
x402 Merchant Check
Pre-payment merchant trust checks for x402 agents on Base and Solana.
x402 Micro Tollgate
x402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.
x402nano
Machine-payable prediction-market briefs and probability-change monitoring for AI agents.
x402 Payments
HTTP-native micropayments with USDC on Base and Solana via the x402 protocol.
x402 Pay — USDC API Payment Helper
Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.
x402 Preflight
Inspect and validate an x402 endpoint before an autonomous agent spends USDC.
x402 Seller
Pay-per-call MCP tools (crypto/DeFi data, web reading, AI tasks) in USDC over x402 on Base.