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FastAF Structured Web Extraction
x402
FastAF Structured Web Extraction is a paid API for AI agents from api.fastaf.co, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).
Extracts structured JSON data from any public web page by accepting a URL and a JSON Schema, returning data that conforms to the schema.
Price / call$0.02
Success—
StatusUnknown
How this service works
Extract structured JSON from a public web page for AI agents: URL and JSON Schema in, JSON valid against it out. For specific fields as data, not page text. Optional schema fields may be missing or null; only fields listed in required are guaranteed to be present in a successful response. Optional nulls are omitted before validation. Non-matching answers are never charged. Provided by Structured data extraction (JSON Schema). Price: $0.020000 USDC per successful call. Docs: https://fastaf.co
Output
A JSON object validated against the provided JSON Schema. Required fields are guaranteed present in a successful response; optional fields may be null or omitted. Non-matching responses are not charged.
Example use cases
Scrape competitor pricing from product page
“Pull the product name, current price, and any discount percentage from https://www.competitor.com/product/abc — return it as JSON with fields: productName (required), price (required), discountPercent (optional).”
Extract job details from a careers page
“Go to https://jobs.acmecorp.com/posting/8821 and extract the job title, location, salary range, and application deadline as structured JSON — title and location are required, salary and deadline are optional.”
Pull contact info from a company about page
“Fetch https://www.somecompany.com/about and extract the CEO name, company founding year, and headquarters city as JSON — I need companyName and founderName as required fields, foundedYear and city as optional.”
Technical details
Endpoint
POSThttps://api.fastaf.co/x402/v1/extract?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract specific, schema-defined fields from an arbitrary public web page and want the result as validated JSON — especially when you know what data shape you need in advance. Prefer it over general-purpose scrapers when structured output conforming to a schema is required, and over search APIs when you already have the exact URL of the page.
Side effects
- Page is behind a login or paywall — returns no data or partial match
- Dynamic JavaScript-rendered content missed without render_js flag set to true
- JSON Schema is too strict or has no matching content on the page — response may be empty or uncharged
- URL is invalid, blocked, or rate-limited — extraction fails
- Schema has no required fields and page content is ambiguous — optional fields may all be null
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| schema | object | |
| dynamic | boolean | |
| premium | boolean | |
| render_js | boolean |
Tags
x402
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