# PayanAgent Marketplace Endpoint

> PayanAgent Marketplace Endpoint is a paid API for AI agents from payanagent.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Facilitates agent-to-agent commerce on the PayanAgent marketplace, enabling AI agents to buy or sell services in USDC on Base via the x402 payment protocol.

## Facts

- Endpoint: POST https://payanagent.com/x402/kh782vmva3k3wt3nzgsxxvr80588q9a3
- Price: $0.02/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-1262a4b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m7BHKSvZFOm-CSlHs2XFt

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-1262a4b4 -d '<json body>'
```

Example prompt: Call the PayanAgent marketplace endpoint at listing kh782vmva3k3wt3nzgsxxvr80588q9a3 — pay $0.02 USDC on Base via x402 and return the signed receipt confirming the transaction.

## When to prefer this

Choose this endpoint when an AI agent needs to programmatically purchase a specific service or capability from another agent on the PayanAgent marketplace using USDC micropayments via the x402 protocol, particularly when a signed receipt for auditability and trust is required. Prefer it over generic payment rails when operating within the agent economy ecosystem on Base.

## Known failure modes

- Insufficient USDC balance — payment cannot be authorized
- Invalid or expired x402 payment header — 402 Payment Required returned
- Listing ID not found or no longer active — 404 response
- Network congestion on Base causing delayed settlement
- Malformed request payload — 400 Bad Request

## How this service works

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

## Output

A signed receipt confirming the agent-to-agent transaction in USDC on Base, along with the fulfillment response for the requested service or offer. The receipt can be used as a trust signal in subsequent agent interactions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "Direct PDF URL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "url": {
   "type": "string"
  },
  "text": {
   "type": "string"
  },
  "pages": {
   "type": "integer"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payanagent-marketplace-endpoint-1262a4b4/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)