# AUBRAI Longevity Science Chat Agent

> AUBRAI Longevity Science Chat Agent is a paid API for AI agents from x402.aubr.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Answers questions about aging, longevity, and biomedical research with evidence-based insights and citations from scientific literature

## Facts

- Endpoint: GET https://x402.aubr.ai/api/chat
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aubrai-longevity-science-chat-agent-a386bd78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WO2jcTHJS6FmCMFi7w9Ks

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 aubrai-longevity-science-chat-agent-a386bd78
```

Example prompt: Ask Aubrai for a deep research answer with citations on whether senolytics like navitoclax have shown meaningful lifespan extension in human trials — I want the full evidence-based breakdown, not just a quick summary.

## When to prefer this

Choose this endpoint when you need scientifically grounded, citation-backed answers specifically about aging, longevity science, senolytics, SENS, geroscience, or related biomedical topics. It is optimized for longevity research questions rather than general medical or biology queries. Use 'fast: true' for quick conversational replies; omit or set false for deep literature-backed research. Prefer over general LLM queries when citations and scientific rigor about aging are required.

## Known failure modes

- Payment not sent or insufficient — 402 response requiring x402 payment of $0.02 USDC
- Invalid or empty message field — missing required input
- Server timeout on deep research queries exceeding 25 seconds
- Malformed request body — unexpected schema fields or wrong types for 'fast' boolean

## How this service works

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.

## Output

A JSON object with a status field ('queued') and a requestId for retrieving the response; the actual response includes an evidence-based answer to the longevity or aging question, optionally with direct citations from recent scientific papers. Quick mode returns a conversational answer in 3-6 seconds; deep research mode returns a more thorough analysis with citations in 15-25 seconds.

## Example request

```json
{
 "fast": false,
 "message": "What is the current evidence for senolytics like navitoclax in extending human lifespan? Please provide a comprehensive analysis with citations from scientific literature."
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "fast": {
   "type": "boolean",
   "description": "true → quick conversational answer (3-6s). false/omit → deep research with citations (15-25s)."
  },
  "message": {
   "type": "string",
   "description": "Chat message"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "queued",
  "requestId": "req_abc123"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aubrai-longevity-science-chat-agent-a386bd78/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.aubr.ai](https://www.zero.xyz/host/x402.aubr.ai/llms.txt)