fastcrw-com · Schema
ExtractRequest
At least one of `prompt` or `schema` must be present.
CompanyWeb ScrapingAI AgentsRustOpen SourceSearch API
Properties
| Name | Type | Description |
|---|---|---|
| urls | array | URLs to extract from (1..crawler.max_extract_urls). |
| prompt | string | Free-text extraction objective. |
| schema | object | JSON Schema constraining the extracted output. |
| llmApiKey | string | BYOK LLM API key. |
| llmProvider | string | |
| llmModel | string | |
| basis | boolean | Return per-field evidence: each result carries a 'basis' array, one entry per top-level scalar schema property. Requires 'schema'. Reported by GET /v1/capabilities (extract.perFieldAttribution). |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/fastcrw-com/json-schema/fastcrw-com-extract-request-schema.json",
"title": "ExtractRequest",
"description": "At least one of `prompt` or `schema` must be present.",
"x-generated": "2026-10-30",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/fastcrw-com-openapi.json#/components/schemas/ExtractRequest",
"type": "object",
"required": [
"urls"
],
"properties": {
"urls": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"description": "URLs to extract from (1..crawler.max_extract_urls)."
},
"prompt": {
"type": "string",
"description": "Free-text extraction objective."
},
"schema": {
"type": "object",
"additionalProperties": true,
"description": "JSON Schema constraining the extracted output."
},
"llmApiKey": {
"type": "string",
"description": "BYOK LLM API key."
},
"llmProvider": {
"type": "string"
},
"llmModel": {
"type": "string"
},
"basis": {
"type": "boolean",
"description": "Return per-field evidence: each result carries a 'basis' array, one entry per top-level scalar schema property. Requires 'schema'. Reported by GET /v1/capabilities (extract.perFieldAttribution)."
}
}
}
Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/fastcrw-com-extract-request"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.