MCP servers and skills: search, filter by where they run, and compare.
Nothing matches every word exactly, so these are the closest matches.
Security suite for AI agents — catch the dangerous thing before signing: preflight EVM transactions for drains, inspect EIP-712 signatures for permit-phishing, and gate agent actions by policy. Pairs
PythonMIT★ 1Few starsNo key
TypeScript SDK + MCP server for Tersign, the record layer for the machine age — counter-signed EIP-712 receipts, hash-chained action and disclosure records, refunds, disputes, venue-formatted evidence
Node.jsApache-2.0★ 1Few starsNo key
Node.jsApache-2.0Few starsNo key
Node.jsMITFew starsNo key
Zero-dependency HTTP 402 fetch replacement for autonomous AI agents. EIP-3009 gasless USDC on Base. Buyer, seller, and MCP server.
MCPLink only★ 3Few stars
Explicit authorization linked to observed EVM execution through portable, independently verifiable evidence.
Hosted by authorMIT★ 6No key
A conformance linter for the x402 agent-payments protocol — check an endpoint 402 challenge, decode X-PAYMENT blobs
PythonMITFew starsNo key
MCP server for x402 Service Discovery — continuously growing catalog of services, real-time quality signals, facilitator-compat checks. For Claude, Cursor, Windsurf.
SkillMIT★ 4Few starsNo key
Node.jsMITFew starsNo key
Drop-in HTTP 402 + MCP paywall. Point it at any existing API; agents pay USDC per call.
Node.jsMITFew starsNo key
Node.jsMITFew starsNo key
Read-only MCP client for batch reports on 1–5 public EVM addresses across Ethereum, Base, Arbitrum One, and Polygon. Customer pays 0.02 native USDC directly to operator on Base.
Hosted by authorMITFew starsNo key
Exchange RFQ nao-custodial para agentes autonomos (nao humanos) - sem KYC, reputacao on-chain via ERC-8004
Node.jsMITFew starsNo key
Verify-before-pay client for the SendCheck x402 API — free address pre-check + the signed service card (ES256 JWS over payTo + per-route maxPrice). Zero deps.
Hosted by authorMITFew starsNo key
Hosted by authorAGPL-3.0★ 1Few starsNo key
Pay-per-call agent tools: Polymarket signals, IPFS pinning, EIP-712 attestations. USDC on Base.
Hosted by authorNo licenseFew starsNo key
Execution oracle for AI agents: will your tx or payment land on time? 12 networks measured every 2 s, signed evidence (BLAKE3+Ed25519, EIP-191), kernel-level TLS round trip via eBPF. x402 pay-per-call
Node.jsMITFew starsNo key
The buyer side of the Legal Context Protocol: confirm, before an agent pays, that the payment it signs carries the hash of the exact record the seller serves.
Node.jsApache-2.0Few starsNo key
Little John is a local, non-custodial MCP app that starts with Robinhood Chain and helps users inspect, review, and approve onchain actions without giving up control of their keys.
Node.jsMITFew starsNo key
PythonMITFew starsNeeds a key
Metered MCP tools. Free discovery over MCP; execution priced per call and settled in USDC via x402 v2.
Hosted by authorMITFew starsNo key
Node.jsMITFew starsNo key
Node.jsApache-2.0Few starsNeeds a key
Who stands behind it
