# Stride Gateway Crypto Price API

> Stride Gateway Crypto Price API is a paid API for AI agents from gateway.stride20k.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns the current USD spot price for any cryptocurrency by CoinGecko or DefiLlama coin ID, sourced from DefiLlama's aggregated market feed with confidence score and observation timestamp.

## Facts

- Endpoint: GET https://gateway.stride20k.com/crypto/price/:coinId
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stride-gateway-crypto-price-api-280cc2ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_boW7zVgBSFIgMbnf4577R

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 stride-gateway-crypto-price-api-280cc2ec
```

Example prompt: What's the current USD price of ethereum right now? I need the spot price with confidence score before I execute a trade.

## When to prefer this

Use this endpoint when you need a quick, reliable USD spot price for any major or long-tail cryptocurrency, especially when you need DefiLlama's aggregated confidence score alongside the price — ideal for pre-trade checks, portfolio valuation, or DeFi agent workflows. Prefer this over raw exchange APIs when you need a single aggregated price with provenance metadata rather than order book data.

## Known failure modes

- Unknown or misspelled coin ID returns a 404 or error response
- Contract address on unsupported chain returns no price data
- Stale or illiquid token may return low confidence score
- Cache up to 60 seconds may return slightly outdated price in fast-moving markets
- Missing coinId path parameter returns a 400 bad request

## How this service works

Live cryptocurrency price API: current USD price for any coin by CoinGecko id ('bitcoin', 'ethereum') or DefiLlama id ('coingecko:bitcoin', 'chain:address' for tokens by contract address). Sourced from DefiLlama's aggregated market feed with the source's own confidence score (0-1) and the unix timestamp of the observation. Ideal for agents needing spot prices, portfolio valuation, or price checks before on-chain actions. Cached up to 60 seconds; freshness in meta.fetchedAt.

## Output

A JSON object with the normalized coin ID, USD price, ticker symbol, source confidence score (0-1), unix timestamp of the price observation, and metadata indicating whether the response was cached, the upstream source (DefiLlama), and the ISO 8601 fetch time.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stride-gateway-crypto-price-api-280cc2ec/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.stride20k.com](https://www.zero.xyz/host/gateway.stride20k.com/llms.txt)