# x402 Crypto APIs – Crypto List Endpoint

> x402 Crypto APIs – Crypto List Endpoint is a paid API for AI agents from x402-crypto.vercel.app, paid per call via x402, $0.071916/call, status unknown (last checked 2026-09-14).

Lists and searches cryptocurrency assets via a paid x402 micropayment-gated API endpoint

## Facts

- Endpoint: POST https://x402-crypto.vercel.app/api/crypto-list/%7Bpath%7D
- Price: $0.071916/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-crypto-apis-crypto-list-endpoint-83c69769
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-frGGqnRPQRrGz7rNx27J

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 x402-crypto-apis-crypto-list-endpoint-83c69769 -d '<json body>'
```

Example prompt: Search for the top 20 cryptocurrencies matching 'defi' and show me the results — use the x402 crypto list endpoint and start from offset 0.

## When to prefer this

Use this endpoint when you need to search or browse a cryptocurrency asset catalog programmatically and are willing to pay a per-call micropayment via the x402 protocol. Prefer this over free crypto APIs when operating in an x402-native agent workflow where automatic micropayments are already wired up. Best suited for lightweight listing and search queries rather than deep market data or real-time price feeds.

## Known failure modes

- Payment failure if the x402 micropayment of $0.071916 USDC is not successfully submitted
- Empty results if the query string matches no known cryptocurrency assets
- Invalid offset or limit values causing pagination errors
- Path parameter not resolved if {path} template is not substituted correctly
- Upstream API unavailability causing 5xx errors

## How this service works

Paid cryptocurrency API endpoints via x402 micropayments

## Output

A JSON object with a 'data' field containing the response payload from the upstream cryptocurrency API, including a list of matching crypto assets. The exact structure of each asset entry may vary depending on the query and path used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "description": "Number of results to return"
  },
  "query": {
   "type": "string",
   "description": "Search or filter query"
  },
  "offset": {
   "type": "integer",
   "description": "Pagination offset"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "description": "Response payload from the upstream API (structure varies by endpoint)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-crypto-apis-crypto-list-endpoint-83c69769/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-crypto.vercel.app](https://www.zero.xyz/host/x402-crypto.vercel.app/llms.txt)