# Crypto Token Conversion Rate Calculator

> Crypto Token Conversion Rate Calculator is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Converts a specified amount from one crypto/token ticker to another, returning the equivalent value at current market rates

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/crypto/convert
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-token-conversion-rate-calculator-29b77d77
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RtCN6CU3yRsG2DK3deK9m

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 crypto-token-conversion-rate-calculator-29b77d77 -d '<json body>'
```

Example prompt: How much USDC would I get for 2.5 ETH right now — can you convert that for me using live prices?

## When to prefer this

Use this endpoint when an AI agent needs a quick, pay-per-call crypto token conversion without setting up API keys or subscriptions. Ideal for trading agents that need real-time unit conversion between any two supported tokens — especially when already operating within the x402 multichain intelligence suite and settling in USDC or other stablecoins.

## Known failure modes

- Unknown or unsupported ticker symbols return an error
- Amount must be a positive number — zero or negative values may be rejected
- Network or pricing data unavailability may cause transient failures
- Very low-liquidity or newly launched tokens may lack reliable pricing data
- Payment failure (insufficient USDC balance) blocks the call

## How this service works

Convert an amount between any two crypto/fiat assets at live rates. Send { amount, from, to }, e.g. convert 1.5 ETH to USDC. Instant FX for agents pricing on-chain actions.

## Output

Returns the equivalent amount of the target token for the given source token and amount, computed at real-time market rates. Likely includes the converted value and possibly the implied exchange rate used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "amount",
  "from",
  "to"
 ],
 "properties": {
  "to": {
   "type": "string",
   "description": "Target ticker, e.g. USDC"
  },
  "from": {
   "type": "string",
   "description": "Source ticker, e.g. ETH"
  },
  "amount": {
   "type": "number",
   "description": "Amount of the 'from' asset"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-token-conversion-rate-calculator-29b77d77/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-services-production.up.railway.app](https://www.zero.xyz/host/x402-services-production.up.railway.app/llms.txt)