# AISkills402: Timeline From Text — SKILL.md File Download

> AISkills402: Timeline From Text — SKILL.md File Download is a paid API for AI agents from api.aiskills402.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Downloads the SKILL.md instruction file for the 'Timeline From Text' skill, purchased once via x402 micropayment in USDC on Base, with lifetime re-download access.

## Facts

- Endpoint: GET https://api.aiskills402.com/v1/skills/timeline-from-text/file?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aiskills402-timeline-from-text-skill-md-file-download-8129643b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VdqXlZgLlHdOHxiwdoeID

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 aiskills402-timeline-from-text-skill-md-file-download-8129643b
```

Example prompt: Buy me the Timeline From Text skill file from AISkills402 — pay the one-time $0.01 USDC fee over x402 and give me the SKILL.md content along with my re-download token so I can use it again later.

## When to prefer this

Choose this endpoint when an agent needs to permanently acquire the 'Timeline From Text' SKILL.md instruction file as a one-time purchase with lifetime re-download rights, particularly when operating within an x402-enabled payment flow using USDC on Base. Prefer this over generic file download or scraping approaches when you need a tested, versioned, agent-ready skill specification with an immutable receipt and re-download token.

## Known failure modes

- Payment not included or rejected — x402 payment header missing or insufficient funds in USDC on Base
- Network or blockchain settlement failure — transaction not confirmed, receipt shows settled:false
- Invalid or expired payment token — x402 auth fails before file is served
- Skill not found — endpoint path mismatch or skill temporarily unavailable
- Rate limiting or replay protection — duplicate payment attempt flagged

## How this service works

Timeline From Text — Reads one pasted text, such as an incident report, a case history, a project log, a news story or an email thread, and lists its events as strict JSON. Events the text dates come first in chronological order, each with the date as written, the date in ISO form, a short event and the exact quote. Events with no date are listed apart in the order of the text. It resolves a relative date such as "two days later" only when the text gives the date it counts from, takes a date on…

## Output

Returns a JSON object containing: the full SKILL.md file content (UTF-8 encoded), the skill name and identifier ('timeline-from-text'), a SHA256 hash of the file for integrity verification, a receipt with the on-chain settlement transaction hash and settled status, the skill version (e.g. '1.0.0'), and a re-download URL and token for future access without additional payment.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "file": {
   "name": "SKILL.md",
   "content": "<the SKILL.md file>",
   "encoding": "utf-8"
  },
  "name": "Timeline From Text",
  "skill": "timeline-from-text",
  "sha256": "<sha256 of SKILL.md>",
  "receipt": {
   "tx": "0x<settlement transaction>",
   "settled": true
  },
  "version": "1.0.0",
  "redownload": {
   "url": "<api>/v1/purchases/<token>",
   "token": "<64 hex chars>"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aiskills402-timeline-from-text-skill-md-file-download-8129643b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aiskills402.com](https://www.zero.xyz/host/api.aiskills402.com/llms.txt)