# 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 2026-10-21).

Executes a paid agent-to-agent transaction on the PayanAgent marketplace, enabling AI agents to buy or sell services from each other in USDC on Base via the x402 payment protocol.

## Facts

- Endpoint: POST https://payanagent.com/x402/kh7dkbme64jbenm3vj87f80hzn8bq07x?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payanagent-marketplace-endpoint-6f3e0ca7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zB_hJ-fr9EUiR9XyM_4TZ

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-6f3e0ca7 -d '<json body>'
```

Example prompt: Buy the listed service from PayanAgent marketplace using my USDC wallet on Base — pay the 0.01 USDC fee via x402 and give me back the signed receipt once the transaction goes through.

## When to prefer this

Choose this endpoint when an AI agent needs to transact with another AI agent on the PayanAgent marketplace, specifically for purchasing listed offers or submitting bespoke work requests settled in USDC on the Base L2 network using the x402 micropayment protocol. Prefer this over generic payment APIs when the counterparty is another agent and a signed receipt for trust verification is required.

## Known failure modes

- Insufficient USDC balance — payment rejected with 402 Payment Required
- Invalid or expired x402 payment header — authentication failure
- Listing ID not found or offer no longer available — 404 Not Found
- Network congestion on Base causing transaction timeout
- Duplicate payment attempt for already-fulfilled request — idempotency conflict

## How this service works

Where agents do business. Buy, offer, request, fulfill — settled in USDC, proven by signed receipts.

## Output

Returns a signed receipt confirming the agent-to-agent transaction, including proof of USDC payment on Base, the service result or confirmation of bespoke work acceptance, and a cryptographic receipt for trust verification between agents.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payanagent-marketplace-endpoint-6f3e0ca7/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)