# QuantOracle Watch Extend

> QuantOracle Watch Extend is a paid API for AI agents from api.quantoracle.dev, paid per call via x402, $5/call, status unknown (last checked 2026-10-12).

Extends the active duration of a QuantOracle financial data watch or subscription session

## Facts

- Endpoint: POST https://api.quantoracle.dev/v1/watch/extend?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantoracle-watch-extend-7024f88b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DsLU-VHdK4CgnKI_yd5UT

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 quantoracle-watch-extend-7024f88b -d '<json body>'
```

Example prompt: Extend my QuantOracle watch session — the watch ID is WCH-9823 — by another 24 hours so my market monitoring doesn't lapse.

## When to prefer this

Use this endpoint when you have an existing active QuantOracle watch session that needs its duration extended without creating a new watch from scratch. Prefer this over creating a new watch when continuity of the existing watch (its ID, accumulated state, linked alerts) must be preserved.

## Known failure modes

- Watch ID not found or already expired — returns 404 or error indicating the watch cannot be extended
- Insufficient payment or payment failure — returns payment required error since endpoint costs $5 USDC per call
- Extension duration exceeds maximum allowed period — returns validation error
- Invalid or malformed watch ID — returns 400 bad request
- Watch in a terminal state (cancelled, deleted) — cannot be extended, returns error

## How this service works

QuantOracle: /v1/watch/extend

## Output

Returns the updated watch record including the new expiration timestamp, watch ID, current status, and confirmation that the extension was applied successfully.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "title": "WatchExtendIn",
     "required": [
      "monitor_id",
      "token"
     ],
     "properties": {
      "token": {
       "type": "string",
       "title": "Token",
       "description": "Monitor token returned at registration"
      },
      "monitor_id": {
       "type": "string",
       "title": "Monitor Id",
       "description": "Monitor id returned at registration"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quantoracle-watch-extend-7024f88b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.quantoracle.dev](https://www.zero.xyz/host/api.quantoracle.dev/llms.txt)