# NexusAPI Health Macros Lookup

> NexusAPI Health Macros Lookup is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.039139/call, status unknown (last checked 2026-09-15).

Retrieves macro nutrient data or health-related macro information based on a search query

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/health/macros
- Price: $0.039139/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-health-macros-lookup-584c5f08
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OUvrExPr1I5vePLwI-SiL

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 nexusapi-health-macros-lookup-584c5f08 -d '<json body>'
```

Example prompt: What are the macros for 100 grams of chicken breast — I need the protein, carbs, fat, and calorie breakdown.

## When to prefer this

Choose this endpoint when you need quick macronutrient lookups for specific foods or ingredients via a pay-per-call model without managing API keys; suitable for agents performing nutritional analysis or fitness tracking workflows.

## Known failure modes

- Unrecognized or misspelled food item returns empty or null data
- Overly broad queries may return ambiguous or generic results
- Payment failure in USDC results in 402 response before data is returned
- Generic query string yields low-confidence or irrelevant macro data

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns macronutrient and health data for the queried food or nutrient item, likely including calories, protein, carbohydrates, fat, and related health metrics in a structured JSON object.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-health-macros-lookup-584c5f08/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-virid.vercel.app](https://www.zero.xyz/host/nexus-api-virid.vercel.app/llms.txt)