# ManyLives Scheduled HTTP Call (Once)

> ManyLives Scheduled HTTP Call (Once) is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-10).

Schedules a one-time HTTP callback to a specified public URL at a given future time or after a delay in minutes.

## Facts

- Endpoint: POST https://api.manylives.me/paid/schedule/once?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/manylives-scheduled-http-call-once-49d9b9f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KopqSc596T3UWvp1fglGk

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 manylives-scheduled-http-call-once-49d9b9f5 -d '<json body>'
```

Example prompt: Schedule a one-time HTTP POST to https://myapp.example.com/hook with the body {"event":"reminder"} in 30 minutes from now.

## When to prefer this

Use this endpoint when you need to fire a one-time future HTTP callback without managing your own cron infrastructure. Ideal for AI agents that need to trigger downstream actions at a specific future time or after a fixed delay, especially in agentic pipelines where timing is important but no persistent scheduler exists. Choose this over recurring-schedule endpoints when the action should happen exactly once. Well-suited for workflows that pay per call via x402/USDC and don't want to provision always-on infrastructure.

## Known failure modes

- Invalid or non-public target URL causes rejection
- ISO time in the past or malformed datetime string causes error
- Request body exceeding 16 KB limit is rejected
- Target URL is unreachable at scheduled time — delivery may fail silently
- Invalid 'method' value (not POST or GET) causes validation error
- Missing required 'url' field results in 400-level error

## How this service works

Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.

## Output

Returns a JSON object with a unique schedule ID, the target URL, expected call count (1), HTTP method, the scheduled call time, a status URL to poll for delivery confirmation, and a signing secret for verifying the callback originated from ManyLives.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "at": {
   "type": "string",
   "description": "ISO time, e.g. 2026-10-10T09:00:00Z (or in_minutes)"
  },
  "url": {
   "type": "string",
   "examples": [
    "https://httpbin.org/post"
   ],
   "description": "public https:// URL to call (required)"
  },
  "body": {
   "type": "string",
   "examples": [
    {
     "hello": "from ManyLives"
    }
   ],
   "description": "optional JSON to send (max 16 KB)"
  },
  "method": {
   "type": "string",
   "description": "optional POST (default) or GET"
  },
  "in_minutes": {
   "type": "string",
   "examples": [
    5
   ],
   "description": "alternative to at"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "sch_a1b2c3d4e5f6g7h8",
  "url": "https://example.com/hook",
  "calls": 1,
  "method": "POST",
  "status_url": "https://api.manylives.me/paid/schedule/status?id=sch_a1b2c3d4e5f6g7h8",
  "how_to_check": "…",
  "every_minutes": null,
  "first_call_at": "2026-10-10T09:00:00Z",
  "signing_secret": "…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/manylives-scheduled-http-call-once-49d9b9f5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.manylives.me](https://www.zero.xyz/host/api.manylives.me/llms.txt)