# AUBRAI Longevity Science Agent (Encrypted Chat)

> AUBRAI Longevity Science Agent (Encrypted Chat) 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).

Submits an encrypted question about aging, longevity, or biomedical research to an AI science agent inspired by Dr. Aubrey de Grey, returning a poll URL for the queued response

## Facts

- Endpoint: GET https://x402.aubr.ai/api/chat/encrypted
- 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-agent-encrypted-chat-721d6324
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u1Uwx3mtURTWknc0gC_6O

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-agent-encrypted-chat-721d6324
```

Example prompt: Ask the Aubrai science agent what the current evidence says about senolytics as a longevity intervention, and include citations from recent papers — my question should be encrypted before sending.

## When to prefer this

Choose this endpoint when you need evidence-based, cited answers about aging biology, longevity interventions, SENS research, or geroscience — especially when privacy matters (HPKE encryption ensures the prompt is not visible in transit). Prefer this over general-purpose LLMs when you need grounding in actual scientific literature and domain expertise modeled after Dr. Aubrey de Grey's research perspective.

## Known failure modes

- Invalid or malformed HPKE ciphertext returns decryption error
- Missing ephemeral public key causes key exchange failure
- Payment not included or insufficient USDC causes 402 Payment Required
- Poll URL returns pending status if response not yet ready
- Rate limiting or server overload may delay queued responses
- Base64 encoding errors in ciphertext or public key fields

## How this service works

Aubrai is an AI science agent inspired by Dr. Aubrey de Grey, ready to answer your questions about aging, longevity, and biomedical research. Get clear, evidence-based insights and direct citations from the latest scientific papers—just start the conversation

## Output

Returns a JSON object with a status of 'queued', a requestId (e.g. req_abc123), and a pollUrl pointing to /api/chat/encrypted/status/{requestId} where the agent can retrieve the full scientific answer with citations once processing is complete.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "hpke_ciphertext": {
   "type": "string",
   "description": "HPKE-encrypted prompt, base64-encoded"
  },
  "hpke_ephemeral_public_key": {
   "type": "string",
   "description": "Sender's one-time X25519 public key, base64-encoded"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "queued",
  "pollUrl": "/api/chat/encrypted/status/req_abc123",
  "requestId": "req_abc123"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aubrai-longevity-science-agent-encrypted-chat-721d6324/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)