# Coin Railz Multi-Chain Payment Processing

> Coin Railz Multi-Chain Payment Processing is a paid API for AI agents from coinrailz.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-13).

Processes multi-chain cryptocurrency payments for a wallet address with basic or enhanced check types

## Facts

- Endpoint: POST https://coinrailz.com/x402/service/payment-processing
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coin-railz-multi-chain-payment-processing-6511cf98
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5R7bOiNFChemc2WZlfJy4

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 coin-railz-multi-chain-payment-processing-6511cf98 -d '<json body>'
```

Example prompt: Run an enhanced payment processing check on wallet address 0x1234abcd5678ef90 using Coin Railz's multi-chain payment processor.

## When to prefer this

Use this endpoint when you need to programmatically process a multi-chain crypto payment tied to a specific wallet address and want either a basic or enhanced processing check. Prefer this over single-chain payment processors when cross-chain compatibility is needed.

## Known failure modes

- Invalid or malformed wallet address returns validation error
- Missing required walletAddress field returns 400 bad request
- Unsupported checkType enum value returns schema validation error
- Insufficient funds or network congestion may cause processing failure
- Service unavailable or timeout under high load
- Payment of $50 USDC not fulfilled triggers 402 Payment Required

## How this service works

Multi-chain payment processing service (hourly rate)

## Output

Returns a payment processing result including confirmation status, transaction details, and any compliance or validation output for the provided wallet address, based on whether basic or enhanced processing was requested.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Query parameter for the service"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-multi-chain-payment-processing-6511cf98/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinrailz.com](https://www.zero.xyz/host/coinrailz.com/llms.txt)