# Xona Agent Platform Fee (pay.sh x402)

> Xona Agent Platform Fee (pay.sh x402) is a paid API for AI agents from api.xona-agent.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Records and processes the Coinlana platform fee charged when an agent calls an external pay.sh x402 service

## Facts

- Endpoint: POST https://api.xona-agent.com/platform-fee?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/xona-agent-platform-fee-pay-sh-x402-a5838280
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7bDpEkAcl6dAB24LBH91u

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 xona-agent-platform-fee-pay-sh-x402-a5838280 -d '<json body>'
```

Example prompt: Charge the Coinlana platform fee of $0.01 USD for using the pay.sh x402 service at https://pay.sh/some-endpoint, with source 'paysh' and the service FQN 'paysh/some-service'.

## When to prefer this

Use this endpoint when your agent has just invoked an external pay.sh x402 service and needs to record and pay the associated Coinlana platform intermediary fee. This is specific to the Coinlana/xona-agent ecosystem and the pay.sh x402 protocol — not a general-purpose payment endpoint.

## Known failure modes

- Missing required fields (source, amount_usd, source_fqn, or source_url) result in a validation error
- Invalid or malformed source_url causes rejection
- Insufficient USDC balance on the calling agent's account results in payment failure
- Duplicate fee submissions for the same x402 call may be rejected or result in double-charging

## How this service works

Coinlana platform fee for using an external pay.sh x402 service

## Output

A confirmation that the $0.01 USDC Coinlana platform fee has been recorded and charged for the referenced pay.sh x402 service call, including the source, amount, and endpoint details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "source": {
   "type": "string",
   "description": "Fee origin (e.g. paysh)"
  },
  "amount_usd": {
   "type": "number",
   "description": "Fee amount in USD"
  },
  "source_fqn": {
   "type": "string",
   "description": "pay.sh service fqn the fee is for"
  },
  "source_url": {
   "type": "string",
   "description": "External x402 endpoint URL the fee is for"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xona-agent-platform-fee-pay-sh-x402-a5838280/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xona-agent.com](https://www.zero.xyz/host/api.xona-agent.com/llms.txt)