# Whatchuneed Verify Timeline

> Whatchuneed Verify Timeline is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-21).

Verifies or retrieves a timeline of events or status checks for a given input via a generic pay-per-call API endpoint.

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/verify/timeline?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whatchuneed-verify-timeline-562c997b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YZcNuzy0m7zigfezqQwjI

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 whatchuneed-verify-timeline-562c997b -d '<json body>'
```

Example prompt: Can you verify the timeline for 'project launch milestones Q1 2024' and tell me if the sequence of events looks correct?

## When to prefer this

Use this endpoint when you need to verify, retrieve, or validate a timeline or event sequence for a given input string, especially within the whatchuneed pay-per-call ecosystem using the x402 protocol. Prefer it when you need a quick, low-cost ($0.05 USDC) single call to check chronological ordering or audit trail validity.

## Known failure modes

- Missing or empty 'input' field returns a validation error
- Malformed input string may result in an empty or null result object
- Network or payment failure via x402 protocol returns a 402 Payment Required error
- Ambiguous input may return a generic or unhelpful result object
- Service downtime returns 500 or unavailable error

## How this service works

320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.

## Output

Returns a result object containing the timeline or verification data for the given input, along with a status string indicating success or failure of the operation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Request input"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "Response data"
  },
  "status": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whatchuneed-verify-timeline-562c997b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whatchuneed.vercel.app](https://www.zero.xyz/host/whatchuneed.vercel.app/llms.txt)