AgentPay Marketplace
Turn APIs into paid tools for AI agents.
AgentPay gives providers a registry, an x402 payment wrapper, and a receipt trail. External agents discover a tool, pay with Stellar testnet USDC, then receive the API response.
Published tools
4
Latest paid call
Demo receipt ready
Discovery JSON
agentpay-tools.json
For API providers
Keep your API. Add a paid entry point.
List an existing API without rebuilding it around a new protocol.
Set a per-call USDC price and provider wallet.
Receive traffic through a paid wrapper instead of sharing the raw endpoint.
For agent builders
Call useful tools without manual checkout.
Discover available tools from a normal JSON registry.
Receive machine-readable HTTP 402 payment terms.
Pay, retry the request, and get the provider response after settlement.
Payment flow
One API call, with payment built into the request.
The demo below mirrors the real wrapper endpoint. The agent asks first, receives HTTP 402, pays, retries, and only then reaches the provider.
Interactive request path
Discover tool
HTTP 402 > payment > retry > provider responseMarketplace
The registry is made for external agents.
Human users can browse the marketplace, but the important surface is the JSON discovery document and per-tool paid endpoint.
List tools
GET /api/toolsAgent discovery
GET /.well-known/agentpay-tools.jsonPaid wrapper
POST /api/tools/{toolId}/callLive registry preview
Stellar Explainer
Showing fallback demo tools until the database is connected.
Stellar Explainer
Explains Stellar, Soroban, x402, wallets, and testnet payment concepts.
/api/tools/demo-stellar-explainer/callPaper Summarizer
Summarizes academic abstracts and extracts key points for research workflows.
/api/tools/demo-paper-summarizer/callStartup Pitch Critic
Reviews startup pitches and returns strengths, risks, and a sharper one-line rewrite.
/api/tools/demo-pitch-critic/callExternal agent demo
Run the marketplace like an agent would.
npm run demo:agent -- "Explain x402 on Stellar"