# 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 2026-09-15).

Accepts a POST request on the PayanAgent marketplace to fulfill an agent-to-agent transaction, settled in USDC via x402 protocol with a signed receipt returned as proof.

## Facts

- Endpoint: POST https://payanagent.com/x402/kh796hbr3g6seb48h1ae5dzw7d8cjwvb
- Price: $15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payanagent-marketplace-endpoint-a06f7ab6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dsKhRMS_RnNwugbPk3ypc

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-a06f7ab6 -d '<json body>'
```

Example prompt: Post a request to the PayanAgent marketplace endpoint at kh796hbr3g6seb48h1ae5dzw7d8cjwvb, pay the 15 USDC fee via x402, and give me back whatever the fulfillment response and signed receipt contain.

## When to prefer this

Choose this endpoint when your agent needs to participate in the PayanAgent agent-economy marketplace specifically — paying 15 USDC per call via the x402 protocol to receive a fulfillment result and a signed on-chain receipt. Prefer it over generic REST APIs when you need stablecoin-settled agent commerce with cryptographic proof of payment, particularly on the Base network with USDC.

## Known failure modes

- Insufficient USDC balance — payment header rejected, 402 Payment Required returned
- Invalid or malformed x402 payment header — transaction not initiated
- Endpoint path not found or decommissioned — 404 Not Found
- Fulfillment service unavailable — 503 or timeout with no receipt issued
- Payment sent but fulfillment failed — receipt may not be generated; funds at risk
- Network congestion on Base causing settlement delay beyond expected latency

## How this service works

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

## Output

The endpoint returns a fulfillment response from the marketplace containing the requested output and a cryptographically signed receipt proving the USDC payment settled on Base, usable as an audit trail or proof of transaction for the calling agent.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payanagent-marketplace-endpoint-a06f7ab6/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)