Independent verifier for signed AI audit exports and Permit-spec evidence

Open specification for pre-execution AI action authorization records

Proof of Agent Execution — the neutral trust layer issuing portable, signed execution credentials for AI agents (x402 · MCP · ERC-8004).

AgentPay - The economic-intelligence layer for AI agents — an x402 gateway that prices, caps, and receipts agent data spend. 17 free tools + verified_route, the buyer-side x402 trust oracle. USDC on Base or Stellar.

Python SDK for the Suede Labs AI x402 surface — pay-per-call music, stem, MIDI, mastering, and IP endpoints, settled in USDC on Base. By Jason Colapietro.

Forge Cascade MCP Memory Server with route-first buyer, checkout, and proof metadata for enterprise AI memory.

Python SDK for agent spend governance around paid tool calls across MCP, LangGraph, OpenAI, Claude, and Gemini: spend authorization, evidence receipts, refunds, disputes, and settlement.

SolSigs: x402-paid Solana data APIs, MCP tools, and ProofGuard receipts for AI agent payments

The selection layer for agents: which tool an agent can use, should use, and pays — between discovery (MCP/ARD) and settlement (x402/AP2)

Drop-in FastAPI paywall for AI agents — Coinbase x402 protocol, USDC on Base/Polygon/Arbitrum

AgentServices — Premium APIs for AI Agents. Crypto data, marketing intelligence, dispute resolution. x402 micropayments on Base.

A runtime enforcement layer for agent payments — blocks injected or out-of-scope transactions before settlement. Signed mandate + provenance + tamper-evident receipt. EN/中文, zero-dep, real MCP SDK. (GOAI)

Pay-per-call OSINT for AI agents: username + email recon in USDC on Base via x402. Free MCP discovery tools + paid HTTP API.

Pay-per-call x402 gateway for AI agents — MCP server + OpenAI-compatible API for agent tools, market data, RPC, and MCP security audits. Pay in USDC on Base, no account.

Give an AI agent a wallet it can spend from autonomously, but only within policy: limits, allowlist, approval threshold, audit trail. On Circle Arc, USDC as gas. MCP tools.

Agent-to-agent payments, escrow and formal verification services

Local OpenAI-compatible x402-paying proxy — make DDG your agent runtime's default provider (USDC on Base).

MEOK AI Labs MCP Server

Open, reproducible measurement of how much x402 agent-payment volume on Base is backed by verified repeat buyers. Neutral on-chain data, not investment advice.