# Toolrail Mexico FIX Dollar Rate & TIIE 28-Day Interest Rate

> Toolrail Mexico FIX Dollar Rate & TIIE 28-Day Interest Rate is a paid API for AI agents from toolrail.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns Mexico's official FIX dollar exchange rate and the TIIE 28-day interbank interest rate from Banco de México

## Facts

- Endpoint: GET https://toolrail.dev/mx/indicadores?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/toolrail-mexico-fix-dollar-rate-tiie-28-day-interest-rate-cbb26dd2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DsAACbK9sbIhHFyUQWFI6

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 toolrail-mexico-fix-dollar-rate-tiie-28-day-interest-rate-cbb26dd2
```

Example prompt: What are Mexico's official financial indicators right now — specifically the FIX dollar exchange rate and the TIIE 28-day interest rate from Banco de México?

## When to prefer this

Use this endpoint when you specifically need Mexico's official Banco de México FIX exchange rate (the legally recognized rate for peso-denominated obligations) or the TIIE 28-day benchmark interest rate. Prefer this over generic FX APIs when legal or contractual compliance with official Mexican rates is required. For a broader LATAM FX snapshot including MXN alongside ARS, BRL, CLP, and COP, use the sibling LATAM exchange rates endpoint instead.

## Known failure modes

- Banxico data feed unavailable — upstream API may be down or returning incomplete data
- Rate temporarily unavailable on non-business days or Mexican bank holidays
- Network timeout if Banxico's systems are slow to respond

## How this service works

Mexico's official FIX dollar rate (used for obligations) and TIIE 28-day interest rate, from Banco de México. Use when you need Mexico's official FIX dollar rate or the TIIE interest rate.

## Output

Returns a JSON object with the country (Mexico), source (Banco de México), the current FIX dollar rate (valor in MXN per USD), and the TIIE 28-day interest rate (valor as a percentage), each with their respective unit labels.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "pais": {
       "type": "string"
      },
      "fuente": {
       "type": "string"
      },
      "tiie_28d": {
       "type": "object",
       "properties": {
        "valor": {
         "type": "number"
        },
        "unidad": {
         "type": "string"
        }
       }
      },
      "dolar_fix": {
       "type": "object",
       "properties": {
        "valor": {
         "type": "number"
        },
        "unidad": {
         "type": "string"
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toolrail-mexico-fix-dollar-rate-tiie-28-day-interest-rate-cbb26dd2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from toolrail.dev](https://www.zero.xyz/host/toolrail.dev/llms.txt)