# MacroPulse Rates Differential

> MacroPulse Rates Differential is a paid API for AI agents from macropulse-alpha.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Returns G10 central bank interest rate differentials and carry trade intelligence for forex analysis

## Facts

- Endpoint: GET https://macropulse-alpha.vercel.app/api/rates-differential
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/macropulse-rates-differential-28afe9a0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ebq3m578uSrnhvmntbUUz

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 macropulse-rates-differential-28afe9a0
```

Example prompt: What are the current G10 central bank rate differentials and which currency pairs have the strongest carry trade opportunities right now?

## When to prefer this

Use this endpoint when you need a focused, ready-to-use analysis of G10 central bank rate differentials and carry trade intelligence — particularly when building FX carry trade strategies, comparing monetary policy divergence across major economies, or looking for yield-based currency pair signals without having to aggregate raw central bank data yourself.

## Known failure modes

- Stale rate data if central bank decisions occurred very recently
- Payment failure if USDC balance is insufficient (x402 protocol)
- Service unavailability from Vercel deployment downtime
- Rate data gaps if a central bank has not announced a recent decision

## How this service works

Interest-rate differential and carry intelligence for FX agents — G10 policy rates, yield spreads and the carry-trade map that drives durable currency trends.

## Output

A structured breakdown of G10 central bank policy rates, pairwise rate differentials, and carry trade intelligence including which pairs offer the most attractive positive or negative carry, yield spreads, and actionable signals for forex carry trade positioning.

## Example request

```json
{
 "session": "london"
}
```

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lang": {
       "type": "string",
       "description": "e.g. en, es, fr, de, ja, zh, ko, pt, ar (default: en; not strictly validated — any language is forwarded to the model)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "bias": "USD strength supported by rate differential vs EUR and JPY",
  "aud_usd_diff_bp": -20,
  "eur_usd_diff_bp": -175,
  "gbp_usd_diff_bp": -90,
  "usd_jpy_diff_bp": 530
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/macropulse-rates-differential-28afe9a0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from macropulse-alpha.vercel.app](https://www.zero.xyz/host/macropulse-alpha.vercel.app/llms.txt)