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Web Page Form Inspector
x402
Web Page Form Inspector is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).
Extracts all HTML forms from a given URL, returning each form's action, method, and field definitions (name, type, label, required status, and options) without submitting anything.
Price / call$0.005
Success—
StatusUnknown
How this service works
Every form on a page with its action, method and fields (name, type, label, required, options), so an agent knows what a page asks for before interacting. Read only: nothing is submitted. Body: {url}.
Output
A structured list of all forms found on the page, each containing: the form's action URL, HTTP method, and an array of fields with their name, type, label, required flag, and any available options (e.g. select dropdown values). Nothing is submitted; this is a read-only inspection.
Example use cases
Pre-fill automation for login page
“I need to automate logging into https://app.example.com/login — can you first inspect that page and tell me all the form fields, their names, types, and which are required, so I know exactly what to send?”
Mapping a checkout form's required fields
“Before building my autofill script, can you pull up the forms on https://shop.example.com/checkout and list every input field with its name, type, label, and whether it's required?”
Auditing a contact form's structure
“I want to know what a website's contact form looks like — can you inspect https://www.example.com/contact and show me all the form fields, their types, any dropdown options, and where the form submits to?”
Technical details
Endpoint
GEThttps://api.x-402.online/v1/web/forms?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to understand a page's form structure before attempting to interact with it — especially useful for automation, pre-fill workflows, or auditing what a form requires. Prefer this over a general-purpose web scraper when you specifically need structured form metadata (action, method, fields) rather than raw HTML or page text.
Side effects
- URL is inaccessible or returns a non-200 status — endpoint may return an error or empty form list
- Page renders forms via JavaScript only — statically parsed HTML may miss dynamically injected forms
- URL points to a page behind authentication — forms may not be visible without a session cookie
- Malformed or non-standard HTML may cause incomplete field extraction
- Network timeout if the target page is slow to respond
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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