# MCPFax Markets Stablecoin

> MCPFax Markets Stablecoin is a paid API for AI agents from mcpfax-markets.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-10).

Returns current market data and information for stablecoins (e.g. USDT, USDC, DAI, TUSD) via a paid POST endpoint

## Facts

- Endpoint: GET https://mcpfax-markets.bowling-anthony.workers.dev/stablecoin?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcpfax-markets-stablecoin-8f6d2931
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iDjqLA4iPdX8c0HpTGkfR

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 mcpfax-markets-stablecoin-8f6d2931
```

Example prompt: Can you pull the latest market data for USDC and USDT — I want to see their current prices, market caps, and whether they're still holding their dollar peg?

## When to prefer this

Choose this endpoint when you need focused stablecoin-specific market data (USDC, USDT, DAI, etc.) rather than general crypto prices. It is purpose-built for stablecoin queries, making it more reliable and structured for peg monitoring, stablecoin risk assessment, or treasury management use cases compared to a general crypto market endpoint.

## Known failure modes

- Payment not included or invalid x402 payment header — returns 402 Payment Required
- Unknown or unsupported stablecoin symbol — returns error or empty result
- Upstream data provider outage — returns 503 or stale data
- Malformed request body — returns 400 Bad Request
- Rate limiting if too many calls in short succession

## How this service works

MCPFax markets — Stablecoin peg deviation (stablecoin). Price: $0.001 USDC per call on Base.

## Output

Returns structured stablecoin market data likely including current price, peg deviation, market capitalization, circulating supply, 24-hour trading volume, and other relevant market statistics for one or more stablecoins.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcpfax-markets-stablecoin-8f6d2931/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-markets.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-markets.bowling-anthony.workers.dev/llms.txt)