# NexusAPI Health Symptoms Lookup

> NexusAPI Health Symptoms Lookup is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.072427/call, status unknown (last checked 2026-10-22).

Searches for health symptom information based on a natural language query

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/health/symptoms?utm_source=zero.xyz
- Price: $0.072427/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-health-symptoms-lookup-3887b616
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b3zNvybj3_35Xdl-ko1zt

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-symptoms-lookup-3887b616 -d '<json body>'
```

Example prompt: Can you look up what conditions or illnesses are commonly associated with symptoms like persistent headache, fever, and neck stiffness?

## When to prefer this

Use this endpoint when an agent needs to quickly look up symptom-related health information without requiring an API key, paying per call in USDC on Base. Suitable for lightweight symptom queries where full medical database integration is not needed.

## Known failure modes

- Empty or vague query returns generic or no results
- Query not related to health symptoms may return irrelevant data
- Service may return 402 Payment Required if USDC payment is not attached
- Highly specific or rare symptom combinations may return limited results
- Malformed request body returns 400 error

## 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 health and symptom information matching the query, potentially including possible conditions, symptom descriptions, and related medical information.

## 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-symptoms-lookup-3887b616/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-peach-nine.vercel.app](https://www.zero.xyz/host/nexus-api-peach-nine.vercel.app/llms.txt)