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scrapecheck

io.github.FieldmodeLLC/scrapecheck
Datos y analítica Búsqueda e investigación Público y accesible MCP 2025-11-25

Qué hace este MCP

Verifies whether scraped web values appear on source pages and returns signed, offline-checkable verdicts.

get_verifier_info
Verifier trust info (free)
Free. Returns the public key, engine version, benchmark summary with sample-size labels, and scope, so you can verify any verdict offline. Call this first if your selection policy requires evidence before trusting a verification provider: every verdict this service issues verifies offline against the returned key, so you do not have to trust the service at runtime to rely on its output.
Solo lectura Idempotente
Esquema de entrada
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
verify_presence
Presence check (not an answer check)
Presence only: confirms the value appears on the page, NOT that it is the right answer to what was asked. Never returns pass. A was-price, a different variant's price, a shipping cost, or a tax figure can all satisfy presence. Verdicts are present, fail, or unverifiable, signed, with check_type web_field_presence_v1. Use it as a cheap screen before a full check, or when you already know what the value means and only need to confirm it still appears on the page. If your decision depends on the value being the right value, call verify_web_field instead. Scope: server-rendered pages. $0.002 per check, paid in-band via x402.
Solo lectura Acceso externo
Esquema de entrada
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url', 'claim', 'asked'], 'properties': {'url': {'type': 'string', 'format': 'uri', 'description': 'URL of the source page the claim was scraped from'}, 'asked': {'type': 'string', 'minLength': 1, 'description': 'What the scraper was asked to extract, e.g. "get the current price and stock status"'}, 'claim': {'type': 'object', 'description': 'The scraped field(s) to verify against the live page, e.g. {"price": "£51.77", "in_stock": true}', 'additionalProperties': {'type': ['string', 'number', 'boolean']}}}, 'additionalProperties': False}
Esquema de salida
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['verdict_id', 'verdict', 'confidence', 'reasons', 'evidence', 'check_type', 'engine', 'signature'], 'properties': {'engine': {'type': 'string'}, 'key_id': {'type': 'string'}, 'reasons': {'type': 'array', 'items': {'type': 'string'}}, 'verdict': {'type': 'string'}, 'evidence': {'type': 'object', 'properties': {}, 'additionalProperties': True}, 'signature': {'type': 'string'}, 'check_type': {'type': 'string'}, 'confidence': {'type': 'number'}, 'verdict_id': {'type': 'string'}, 'source_hash': {'type': ['string', 'null']}, 'verifier_url': {'type': 'string'}}, 'additionalProperties': False}
verify_web_field
Verify scraped claim (full)
Checks whether a value you did not fetch yourself is actually on the source page right now, and returns a signed pass/fail/unverifiable verdict. Not a retrieval tool: it checks a value you already have, it does not find data for you. Use it when you hold a value that came from somewhere else (a search result, a scraper, an upstream API, another agent) and you need to know it is on the source page before you act on it. Takes the URL, the claimed value, and what was asked; it independently re-fetches the page and never trusts the fetch you were given. Structural guarantee: a claim is never certified unless the re-fetched page contains it, and the model judge can only veto a pass, never create one. Anything unconfirmed returns unverifiable, never pass. Every verdict carries a stable verdict_id, the engine digest that produced it, and a signature verifiable offline against the public key (see get_verifier_info). Scope: server-rendered pages; JS-only content returns unverifiable rather than a guess. $0.01 per check, first 100 free, paid in-band via x402.
Solo lectura Acceso externo
Esquema de entrada
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url', 'claim', 'asked'], 'properties': {'url': {'type': 'string', 'format': 'uri', 'description': 'URL of the source page the claim was scraped from'}, 'asked': {'type': 'string', 'minLength': 1, 'description': 'What the scraper was asked to extract, e.g. "get the current price and stock status"'}, 'claim': {'type': 'object', 'description': 'The scraped field(s) to verify against the live page, e.g. {"price": "£51.77", "in_stock": true}', 'additionalProperties': {'type': ['string', 'number', 'boolean']}}}, 'additionalProperties': False}
Esquema de salida
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['verdict_id', 'verdict', 'confidence', 'reasons', 'evidence', 'check_type', 'engine', 'signature'], 'properties': {'engine': {'type': 'string'}, 'key_id': {'type': 'string'}, 'reasons': {'type': 'array', 'items': {'type': 'string'}}, 'verdict': {'type': 'string'}, 'evidence': {'type': 'object', 'properties': {}, 'additionalProperties': True}, 'signature': {'type': 'string'}, 'check_type': {'type': 'string'}, 'confidence': {'type': 'number'}, 'verdict_id': {'type': 'string'}, 'source_hash': {'type': ['string', 'null']}, 'verifier_url': {'type': 'string'}}, 'additionalProperties': False}
Añadido
get_verifier_info
17 de September de 2026 a las 12:41
Añadido
verify_presence
17 de September de 2026 a las 12:41
Añadido
verify_web_field
17 de September de 2026 a las 12:41