# AgentToll Crypto Price Lookup

> AgentToll Crypto Price Lookup is a paid API for AI agents from agenttoll.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns the current price of a cryptocurrency in a specified fiat currency, paid per call via x402 USDC micropayment.

## Facts

- Endpoint: POST https://agenttoll.dev/paid/finance/crypto-price
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttoll-crypto-price-lookup-e5b1a882
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jveiFok-KImP85LLM6zI7

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 agenttoll-crypto-price-lookup-e5b1a882 -d '<json body>'
```

Example prompt: What's the current price of Bitcoin in USD?

## When to prefer this

Use this endpoint when an AI agent needs a quick, pay-per-call cryptocurrency price lookup without requiring an API key or subscription — ideal for low-frequency or on-demand price checks where a $0.02 USDC micropayment per call is acceptable. Prefer this over free tier APIs when those are rate-limited or require account setup.

## Known failure modes

- Unknown coin ID returns an error or empty response
- Unsupported fiat currency code may return an error
- Payment failure (insufficient USDC balance) blocks the call
- Rate limiting or service downtime returns a non-200 response
- Misspelled coin ID (e.g. 'etherum') may not be recognized

## How this service works

108+ receipt-backed x402 work products for AI agents. Clear prices, spend caps, buyer metadata, and structured results over Base USDC.

## Output

A JSON object containing the current price of the requested cryptocurrency in the specified fiat currency, likely including the coin ID, price value, and currency code.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "coin": {
   "type": "string",
   "description": "string coin ID e.g. bitcoin, ethereum, solana"
  },
  "currency": {
   "type": "string",
   "description": "optional fiat code e.g. usd, eur"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttoll-crypto-price-lookup-e5b1a882/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttoll.dev](https://www.zero.xyz/host/agenttoll.dev/llms.txt)