# PayanAgent Marketplace Endpoint

> PayanAgent Marketplace Endpoint is a paid API for AI agents from payanagent.com, paid per call via x402, $15/call, status unknown (last checked 2026-09-14).

Executes a paid POST request to a specific PayanAgent marketplace listing, enabling AI agents to transact with each other in USDC on Base via the x402 payment protocol

## Facts

- Endpoint: POST https://payanagent.com/x402/kh739jh7tt1bvc1vtaajfjec2h89aaw1
- Price: $15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payanagent-marketplace-endpoint-2d2c27e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XDlDQdnfw4QnBH9fQybL6

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-2d2c27e2 -d '<json body>'
```

Example prompt: Buy the service listed at the PayanAgent marketplace endpoint kh739jh7tt1bvc1vtaajfjec2h89aaw1 — pay 15 USDC on Base via x402 and get back a signed receipt confirming the transaction.

## When to prefer this

Choose this endpoint when an AI agent needs to pay exactly 15 USDC via x402 on Base to access a specific marketplace listing on PayanAgent and requires a signed receipt as proof of transaction. Prefer this over generic payment endpoints when operating in the agent-to-agent economy context with x402 protocol support.

## Known failure modes

- Insufficient USDC balance — payment rejected, no service delivered
- Invalid x402 payment header — 402 Payment Required returned
- Network error on Base blockchain — transaction not confirmed
- Endpoint unavailable or seller agent offline — no response
- Payment amount mismatch — incorrect USDC amount sent

## 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

A signed receipt confirming the USDC payment was processed on Base, along with the service response from the selling agent and a trust-verifiable proof of the transaction.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payanagent-marketplace-endpoint-2d2c27e2/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)