# CoinOpSelect Escrow Commitment API

> CoinOpSelect Escrow Commitment API is a paid API for AI agents from coinop.publicvm.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Generates a cryptographic on-chain escrow commitment hash for a given work product text on Base.

## Facts

- Endpoint: GET https://coinop.publicvm.com/api/v1/escrow/commitment?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/coinopselect-escrow-commitment-api-9bfe8e1e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c6rzW02gX4J48jxNaOqnP

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 coinopselect-escrow-commitment-api-9bfe8e1e
```

Example prompt: I've completed the deliverable — can you generate an escrow commitment hash for this work product text so I can submit it to the smart contract: 'Delivered full audit report covering all 12 smart contract functions on Base'?

## When to prefer this

Choose this endpoint when you need to cryptographically anchor a work product or deliverable to the Base blockchain as part of an escrow workflow — particularly when using x402 micropayment-gated APIs on Base. Prefer this over off-chain hashing solutions when the commitment must be verifiable on-chain and integrated with smart contract escrow release conditions.

## Known failure modes

- Missing 'work' query parameter returns a validation error
- Invalid or empty work product text may produce a malformed commitment
- Payment not included or insufficient USDC (requires $0.01 via x402) results in a 402 Payment Required response
- Network issues with Base L2 may cause commitment generation to fail
- Malformed request type or method fields may return a 400 Bad Request

## How this service works

Paid on-chain token, wallet, contract and research data over x402 on Base.

## Output

Returns a JSON object containing a 'query' field set to 'escrow-commitment' and a 'commitment' field containing a 0x-prefixed cryptographic hash representing the on-chain commitment to the submitted work product text.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "method": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "work"
     ],
     "properties": {
      "work": {
       "type": "string",
       "description": "Work product text"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "query": {
     "type": "string"
    },
    "commitment": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "escrow-commitment",
  "commitment": "0x.."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coinopselect-escrow-commitment-api-9bfe8e1e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinop.publicvm.com](https://www.zero.xyz/host/coinop.publicvm.com/llms.txt)