# x402.valkyry.fr Token Price

> x402.valkyry.fr Token Price is a paid API for AI agents from x402.valkyry.fr, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Returns the current market price of a specified cryptocurrency token in a given quote currency, sourced from Coinbase.

## Facts

- Endpoint: POST https://x402.valkyry.fr/token-price?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-valkyry-fr-token-price-2464ced4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7sS97tu4V1a82ry9RS3j6

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-valkyry-fr-token-price-2464ced4 -d '<json body>'
```

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

## When to prefer this

Use this endpoint when you need a quick, real-time spot price for a cryptocurrency token quoted in USD (or another supported currency), especially in agentic workflows that require micropayment-gated, per-call pricing via the x402 protocol on Base.

## Known failure modes

- Unknown or unsupported token symbol returns an error or empty response
- Unsupported quote currency may default to USD or return an error
- Upstream Coinbase data unavailable causes a service error
- Malformed request body missing required 'symbol' field
- Payment failure via x402 protocol prevents access to the endpoint

## How this service works

Real-time crypto spot price for any asset (BTC, ETH, SOL, …) in USD or another currency. Live market data feed for AI trading and finance agents.

## Output

A JSON object containing the queried asset symbol (e.g. BTC), the quote currency (e.g. USD), the current price as a decimal string (e.g. '64000.00'), and the data source (e.g. 'coinbase').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "vs": {
   "type": "string",
   "description": "Quote currency (default USD)"
  },
  "symbol": {
   "type": "string",
   "description": "Asset symbol, e.g. BTC, ETH, SOL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "vs": "USD",
  "price": "64000.00",
  "source": "coinbase",
  "symbol": "BTC"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-valkyry-fr-token-price-2464ced4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.valkyry.fr](https://www.zero.xyz/host/x402.valkyry.fr/llms.txt)