Open-source on-chain USDC payment gateway connecting AI agents to merchants. Agents make secure x402 payments; merchants accept agent payments with zero card fees. 20 MCP tools for paywall CRUD, agent management, webhook observability, and transaction monitoring on Solana, Base, and Polygon.
Overview
PincerPay MCP Server
On-chain USDC payment gateway for the agentic economy. Agents pay merchants. Merchants accept agent payments.
Supports the full payment lifecycle: Agents discover merchant capabilities, authorize spending within policy-enforced limits, and settle in USDC over HTTP.
Tools (20)
- Monitoring:
list-supported-chains,estimate-gas-cost,check-facilitator-health,get-settlement-metrics - Operations:
check-transaction-status,verify-payment,list-transactions - Paywall CRUD:
list-paywalls,create-paywall,update-paywall,delete-paywall - Agent Management:
list-agents,update-agent - Webhooks:
list-webhooks,retry-webhook - Account:
get-merchant-profile - Scaffolding:
validate-payment-config,scaffold-x402-middleware,scaffold-agent-client,generate-ucp-manifest
Quick Start
npx -y @pincerpay/mcp
Links
Server Config
{
"mcpServers": {
"pincerpay": {
"command": "npx",
"args": [
"-y",
"@pincerpay/mcp"
],
"env": {
"PINCERPAY_FACILITATOR_URL": "https://facilitator.pincerpay.com",
"PINCERPAY_API_KEY": "<YOUR_API_KEY>"
}
}
}
}