# Starchild Relay – CoinGecko Simple Price

> Starchild Relay – CoinGecko Simple Price is a paid API for AI agents from 5108-data-api-proxy.community.iamstarchild.com, paid per call via x402, $0.00001/call, status unknown (last checked 2026-09-14).

Fetches current spot prices for one or more crypto assets in specified fiat or crypto quote currencies via a CoinGecko proxy secured by x402 micropayment

## Facts

- Endpoint: POST https://5108-data-api-proxy.community.iamstarchild.com/coingecko/api/v3/simple/price
- Price: $0.00001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/starchild-relay-coingecko-simple-price-07964bdb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kkYsfN7gUPRDYxAI_aIfc

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 starchild-relay-coingecko-simple-price-07964bdb -d '<json body>'
```

Example prompt: What are the current prices of bitcoin and ethereum in USD right now? Pull it from the Starchild Relay CoinGecko proxy.

## When to prefer this

Use this endpoint when you need real-time crypto spot prices for one or more assets and want a single x402-paywall proxy to CoinGecko data without managing CoinGecko API keys. Ideal for agents that already support x402 payment flows and need a pay-per-call, frictionless price feed at very low cost ($0.00001 USDC per call).

## Known failure modes

- 402 Payment Required – no valid X-PAYMENT header provided; agent must complete x402 micropayment challenge before retrying
- 400 Bad Request – missing or malformed 'ids' or 'vs_currencies' parameters
- 404 Not Found – unrecognized asset id or currency code
- 503 Service Unavailable – upstream CoinGecko outage or rate limit hit by proxy
- Timeout – upstream latency spike from CoinGecko

## How this service works

All-in-one reputable data source for AI agents and developers. Crypto spot/OHLC, derivatives funding rates, open interest, liquidations, forex, commodities, indices, social sentiment, DeFi protocols, and more — 17+ upstream data sources behind a single x402 paywall.

Usage: Send requests to any proxied path (e.g. GET /coingecko/api/v3/...). Unauthenticated requests receive a 402 challenge with payment instructions. Include X-PAYMENT header with a valid signature to access data.

## Output

A JSON map keyed by asset id (e.g. 'bitcoin', 'ethereum') with nested objects containing the current price in each requested quote currency (e.g. {'bitcoin': {'usd': 67000}, 'ethereum': {'usd': 3500}}). The response mirrors the CoinGecko /simple/price format.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ids": {
   "type": "string",
   "description": "Comma-separated asset ids (e.g. bitcoin,ethereum)"
  },
  "vs_currencies": {
   "type": "string",
   "description": "Comma-separated quote currencies (e.g. usd)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/starchild-relay-coingecko-simple-price-07964bdb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 5108-data-api-proxy.community.iamstarchild.com](https://www.zero.xyz/host/5108-data-api-proxy.community.iamstarchild.com/llms.txt)