# Money Reactor — Cryptocurrency Pair Conversion (coin-convert)

> Money Reactor — Cryptocurrency Pair Conversion (coin-convert) is a paid API for AI agents from mr-river4.makar52nn2016.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Converts a specified amount between two crypto assets and returns the exchange rate and converted result, paid per call in USDC on Base via x402.

## Facts

- Endpoint: GET https://mr-river4.makar52nn2016.workers.dev/api/coin-convert?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/money-reactor-cryptocurrency-pair-conversion-coin-convert-b0180353
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PeAzGf9t64XrB4Ho1_QdY

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 money-reactor-cryptocurrency-pair-conversion-coin-convert-b0180353
```

Example prompt: How much ETH would I get for 1 BTC right now? Use the coin-convert endpoint to calculate the current exchange rate and result.

## When to prefer this

Choose this endpoint when you need a quick, per-call cryptocurrency pair conversion with no API key or account setup, paying a micro-fee in USDC on Base. Ideal for AI agents executing on-chain workflows that need real-time or near-real-time exchange rate calculations between two named crypto assets.

## Known failure modes

- Invalid or unsupported asset code returns an error
- Missing required query parameters (from, to, amount) may return a 400 or empty response
- Payment failure via x402 if USDC balance is insufficient
- Rate data may be stale or unavailable for obscure token pairs
- Network timeout on the Cloudflare Worker endpoint

## How this service works

22 agent-native micro APIs paid per call in USDC on Base via x402: funded bounty radar, honeypot trust scoring, token safety verdicts, crypto prices, multi-asset price snapshots, fear & greed index, full market-pulse snapshot, AI chat completion (Llama 3.1), crypto news, weather, web reader, ERC-20 balances. No accounts, no API keys — instant on-chain settlement.

## Output

A JSON object containing the source asset code (from), target asset code (to), the current exchange rate between the pair (rate), the input amount, and the computed result (converted amount). Example: {"to":"ETH","from":"BTC","rate":22.5,"amount":1,"result":22.5}.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {
      "to": {
       "type": "string",
       "example": "ETH",
       "description": "Asset code"
      },
      "from": {
       "type": "string",
       "example": "BTC",
       "description": "Asset code"
      },
      "amount": {
       "type": "number",
       "example": 1,
       "description": "Amount"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "to": "ETH",
     "from": "BTC",
     "rate": 22.5,
     "amount": 1,
     "result": 22.5
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "ETH",
  "from": "BTC",
  "rate": 22.5,
  "amount": 1,
  "result": 22.5
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/money-reactor-cryptocurrency-pair-conversion-coin-convert-b0180353/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mr-river4.makar52nn2016.workers.dev](https://www.zero.xyz/host/mr-river4.makar52nn2016.workers.dev/llms.txt)