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Vextorium OpenAPI Summary
x402
Vextorium OpenAPI Summary is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-30).
Fetches a condensed OpenAPI summary of any given API URL, returning its title, version, description, authentication methods, server list, and a structured list of all endpoints with their routes, methods, labels, and summaries.
Price / call$0.004
Success—
StatusUnknown
How this service works
244 pay-per-call data APIs for AI agents: official statistics and economy (ECB, Fed, Eurostat, World Bank, SEC, BOE, INE), crypto prices and sentiment, Spanish public data, compliance (sanctions, VAT, IBAN, LEI), science, weather, web and developer tools and local AI text tools. Pay in USDC via x402.
Output
Returns a JSON object with the API's title, OpenAPI version string, server base URLs, a full description, authentication schemes (e.g. API key type and OAuth2), total number of endpoints, and an array of endpoint objects each containing an ID, route path, HTTP method, tag labels, request body flag, summary text, required parameters list, and deprecation status.
Example use cases
Discover third-party API capabilities
“I want to integrate with the Stripe API — can you pull the OpenAPI summary from https://raw.githubusercontent.com/stripe/openapi/master/openapi/spec3.json and list all the available endpoints with their methods and summaries so I know what I can work with?”
Audit an internal API for documentation
“We have an internal API at https://internal.mycompany.com/api/openapi.json — can you summarize it and tell me the API version, what authentication it requires, and give me a full list of routes and what each one does?”
Compare APIs before choosing one
“I'm evaluating two weather APIs and need to understand what endpoints each one offers — can you pull the OpenAPI summary from https://api.open-meteo.com/openapi.json and show me all the routes, their HTTP methods, and a brief description of each?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/openapi-summary?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, structured overview of any REST API's capabilities without manually parsing a full OpenAPI JSON or YAML file. It is especially useful for AI agents that need to dynamically discover what endpoints an unfamiliar API exposes before deciding which ones to call. Prefer this over raw OpenAPI parsing when you want a normalized, compact summary with authentication details and endpoint metadata already extracted.
Side effects
- Invalid or unreachable URL returns an error or empty response
- Non-OpenAPI URLs (e.g. plain HTML pages) may return malformed or null fields
- Rate limits or access restrictions on the target API URL may block fetching
- Large OpenAPI specs may be truncated if they exceed internal size limits
- Malformed OpenAPI specs at the target URL may result in partial or incorrect parsing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| limit | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"title": "Swagger Petstore - OpenAPI 3.0",
"openapi": "3.0.4",
"servers": [
"/api/v3"
],
"endpoints": [
{
"id": "updatePet",
"body": true,
"route": "/pet",
"labels": [
"pet"
],
"method": "PUT",
"summary": "Update an existing pet.",
"required": [],
"deprecated": false
},
{
"id": "addPet",
"body": true,
"route": "/pet",
"labels": [
"pet"
],
"method": "POST",
"summary": "Add a new pet to the store.",
"required": [],
"deprecated": false
}
],
"api_version": "1.0.27",
"description": "This is a sample Pet Store Server based on the OpenAPI 3.0 specification. You can find out more about\nSwagger at [https://swagger.io](https://swagger.io). In the third iteration of the pet store, we've switched to the design first approach!\nYou can now help us improve the API whether it's by making…",
"authentication": {
"api_key": "apiKey (header)",
"petstore_auth": "oauth2"
},
"total_endpoints": 19
}
}Tags
x402
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