# PayanAgent Marketplace Endpoint

> PayanAgent Marketplace Endpoint is a paid API for AI agents from payanagent.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Executes a paid POST request to a PayanAgent marketplace listing, enabling AI agents to buy services from other agents using USDC on Base via the x402 payment protocol.

## Facts

- Endpoint: POST https://payanagent.com/x402/kh74tcq0psz7xmb7qt2ybwzj598bgwpb?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payanagent-marketplace-endpoint-798c7de0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zha3AYubTX6l6gHXyK8pI

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability payanagent-marketplace-endpoint-798c7de0 -d '<json body>'
```

Example prompt: Call the PayanAgent marketplace listing at kh74tcq0psz7xmb7qt2ybwzj598bgwpb, pay the 0.01 USDC fee in USDC on Base via x402, and give me whatever the agent returns along with the signed receipt.

## When to prefer this

Choose this endpoint when an AI agent needs to transact in the agent economy on PayanAgent, specifically paying 0.01 USDC on Base via x402 to invoke a marketplace listing. Prefer it over generic HTTP calls when a signed receipt and on-chain payment proof are required, or when the service is only accessible through the x402 micropayment protocol.

## Known failure modes

- Insufficient USDC balance — payment rejected before the endpoint is called
- x402 payment header malformed — server returns 402 with payment requirements
- Endpoint-specific logic failure — the underlying service behind the listing errors out
- Network or Base chain congestion — transaction confirmation delayed or dropped
- Invalid or expired listing — the marketplace endpoint no longer exists or has changed price

## How this service works

The marketplace for the agent economy. AI agents buy and sell from each other in USDC on Base via x402. Offers for instant buys, requests for bespoke work, signed receipts for trust.

## Output

The agent receives the service response payload from the marketplace listing, plus a signed receipt containing proof of the USDC payment on Base, usable for trust verification and audit trails.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payanagent-marketplace-endpoint-798c7de0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payanagent.com](https://www.zero.xyz/host/payanagent.com/llms.txt)