API Acre MCP server

• Registry namecom.apiacre/api-acreverified in the MCP registry

The registry name sits under apiacre.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-24
• Tools73
• Server calls itselfapiacre
• Server version0.1.36
• Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 175 ms.

• Its tools do every use case we checked: extract metadata from a public webpage URL; generate a JSON schema from sample records; convert CSV, JSON, and YAML records between formats.
• Checked on 3 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
• What an agent can do with it3 of 3 use cases
• Answeredmeasuring3 of the 7 daily checks it takes to print a share
• Median first answer507 ms
• Space in an agent's context≈ 16,023 tokensthe definitions of all its tools (73), which an agent carries on every turn
• Tool definitionsB · 89 of 100
• Typed results73 of 73 toolsdeclared outputSchema: results come typed, read once

• Parameters without a type: in 2 of 73
• Parameters without a description: in 47 of 73

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• web.extract

  Convert and extract a public website URL into clean Markdown or readable text plus bounded structured links, canonical and heading signals, Schema.org types, redirect evidence, content hashes, and response provenance for RAG, research, or…

• web.metadata

  Extract webpage metadata from one public URL: page title, meta description, canonical URL, headings, hreflang, icons, feeds, Open Graph, Twitter Cards, and JSON-LD Schema.org types, with redirect and response provenance plus privacy-safe…

• web.seo-audit

  Audit one public URL for title, meta description, H1 count, image alt text, canonical, robots, language, Open Graph, Twitter cards, headings, hreflang, feeds, and Schema.org data; return a deterministic score and prioritized issue codes.

• web.security-audit

  Scan a public website for TLS and browser security header weaknesses and return a security score with fixes.

• web.accessibility-audit

  Check a public page for deterministic HTML accessibility problems and return actionable WCAG-oriented findings.

• web.performance-profile

  Measure website response latency, payload size, compression, caching, and performance signals for a public URL.

• web.links

  Extract and classify links from one public page or safely crawl up to 10 same-origin pages into an agent-ready site map with page provenance, depth limits, and robots.txt enforcement.

• web.robots-sitemap

  Inspect a domain's robots.txt crawl rules and XML sitemap health, availability, and URL count.

• web.tech-fingerprint

  Identify frameworks, analytics, CDNs, servers, and other website technologies from public response signals.

• web.email-auth

  Check a public domain's email authentication and anti-spoofing posture using MX, SPF, DMARC, caller-selected DKIM, MTA-STS, TLS-RPT, and BIMI DNS evidence.

• web.domain-intelligence

  Investigate a domain using parallel DNS, TLS certificate, RDAP (the standards-based successor to WHOIS), DNSSEC, SPF, and DMARC signals with factual findings and source provenance.

• web.full-audit

  Run a comprehensive website audit combining SEO, security, accessibility, and performance scores with prioritized fixes.

• web.business-due-diligence

  Assess one public business website and domain using site quality, SEO, security, accessibility, performance, DNS, TLS, RDAP, and optional public GLEIF candidates; return technical evidence and explicit identity, ownership, compliance, and…

• commerce.product-price

  Paste one public retailer product URL to get its current publisher-supplied structured price, currency, availability, seller, shipping terms, aggregate rating, variant attributes, identifiers, observation time, and evidence hashes from…

• research.lei-entity-search

  Search the official GLEIF Global LEI Index by exact LEI or legal name and return ranked legal-entity identity, registration, mapped-identifier, and relationship-availability evidence.

• document.extract

  Extract clean text and metadata from supplied PDF, DOCX, HTML, Markdown, CSV, JSON, YAML, or plain-text documents.

• document.tables

  Extract structured table rows and columns from supplied HTML, DOCX, or CSV documents.

• document.redact

  Deterministically detect and redact PII and personal data in supplied text with overlap-safe matching for emails, phone numbers, validated IPv4 and IPv6 addresses, Luhn-valid payment cards, valid-checksum IBANs, and structurally valid US…

• document.diff

  Compare two texts and return structured line additions, removals, and a unified diff.

• data.profile

  Profile CSV, TSV, JSON, JSON Lines, or YAML records for field types, nulls, uniqueness, and representative samples.

• data.clean

  Clean CSV, TSV, JSON, JSON Lines, or YAML records with collision-safe header normalization, deterministic integrity hashes, and exact transformation counts.

• data.convert

  Convert caller-supplied CSV, TSV, JSON, JSON Lines (NDJSON), or YAML with optional root preservation, deterministic integrity hashes, JSON-encoded nested tabular cells, and explicit rejection of ambiguous duplicate keys or non-finite…

• data.json-repair

  Repair caller-supplied malformed JSON by safely removing an outer Markdown fence, comments, single-quoted strings, unquoted identifier keys, Python literals, and trailing commas, with transformation hashes and strict rejection of…

• data.schema

  Create and generate a nested JSON Schema Draft 2020-12 contract by inferring field types and required fields from representative JSON, CSV, TSV, JSON Lines, or YAML records, with equivalent CSV/TSV numeric and null inference, input…

• data.schema-validate

  Validate JSON data against a bounded JSON Schema Draft 2020-12 contract for nested objects, arrays, required properties, types, enums, formats, lengths, patterns, and numeric bounds; return deterministic instance and schema JSON Pointers…

• data.contract

  Normalize caller-supplied CSV, TSV, JSON, JSON Lines, or YAML to deterministic JSON, infer a Draft 2020-12 schema from that normalized value, and validate one future JSON value in a single x402 call.

• data.schemaorg-normalize

  Normalize caller-supplied inline Schema.org JSON-LD into deterministic Organization, Product, Service, Article, and Event entities with privacy scrubbing and field-level evidence hashes.

• data.deduplicate

  Remove duplicate CSV, TSV, JSON, JSON Lines, or YAML records using selected identity fields and report the removed count.

• developer.x402-preflight

  Probe a public endpoint without paying, grade its x402 v2 challenge, check exact-host x402-list presence and traction, and optionally rank licensed market matches with buyer-concentration caveats.

• developer.openapi-audit

  Validate and audit an OpenAPI document for missing operation IDs, descriptions, responses, and consistency problems.

• developer.dependency-audit

  Audit exact Python/PyPI, npm, Go, Maven, NuGet, crates.io, or RubyGems dependencies against OSV and return affected packages and vulnerabilities.

• developer.license-audit

  Classify software dependency licenses and flag packages that need commercial or legal review.

• developer.secret-scan

  Detect likely leaked API keys, tokens, private-key headers, JWTs, and credential assignments in caller-supplied source or configuration text. Return type, line, fingerprint, and a fully redacted preview with no network access or code…

• developer.code-metrics

  Measure caller-supplied source code with Python AST analysis or a deterministic lexical fallback, including per-function complexity, a SHA-256 fingerprint, density ratios, syntax status, and actionable maintainability signals without…

• developer.code-change-review

  Compare caller-supplied before and after source snapshots without execution or network access, returning source fingerprints, syntax regressions, structural deltas, function-level changes, and bounded review findings.

• developer.sql-change-review

  Statically parse caller-supplied SQL without a database connection or execution, inventory statements and tables, and flag destructive DDL, unfiltered writes, and migration atomicity concerns.

• developer.structured-diff

  Compare JSON or YAML deterministically and return source hashes plus machine-readable additions, removals, and replacements by path with explicit truncation evidence.

• research.feed-normalize

  Fetch and normalize public RSS or Atom feeds into stable structured JSON entries for agents and research workflows.

• research.news-aggregate

  Merge two to eight public RSS or Atom feeds into a filtered, deduplicated, time-ordered news stream with bounded partial-failure reporting.

• developer.openapi-test-generate

  Generate deterministic, syntax-validated pytest and requests smoke tests from a caller-supplied OpenAPI 3 document, with mutating operations disabled by default.

• research.us-contract-search

  Search public USAspending prime federal procurement awards by recipient company or organization name, UEI, or legacy DUNS, returning bounded contract values, agencies, performance dates, descriptions, official award links, and explicit…

• research.federal-register-search

  Search newest U.S. Federal Register document metadata by topic, agency, type, and publication date, returning bounded regulatory notices, rules, proposed rules, presidential documents, and links to FederalRegister.gov and official…

• research.ofac-entity-search

  Compare a business or organization name with separately named Entity records and aliases in the official OFAC SDN and Consolidated Non-SDN files, returning deterministic candidate scores, program tags, source hashes, and freshness…

• research.organization-evidence

  Retrieve a current supplier and organization evidence report from official GLEIF legal-entity, USAspending prime-contract, SEC filing-activity, and OFAC Entity records, with bounded source-specific coverage for procurement research and no…

• data.vin-decode

  Decode a full 17-character VIN into normalized NHTSA vPIC make, model, year, body, engine, transmission, plant, fuel, and occupancy fields with official source evidence and explicit missing-data semantics.

• data.worldbank-snapshot

  Bundle six official World Development Indicators into one normalized country snapshot with latest and previous GDP, growth, population, inflation, unemployment, and life-expectancy observations plus source and license evidence.

• research.sec-filing-signals

  Look up a public company by ticker or CIK, normalize recent SEC filings, and flag deterministic events such as late filings, amendments, auditor changes, non-reliance, control changes, or bankruptcy disclosures.

• research.sec-insider-transactions

  Retrieve recent SEC Form 4 officer, director, and 10% beneficial-owner trades for a ticker or CIK, including purchases, sales, awards, exercises, tax withholding, prices, holdings, 10b5-1 context, derivatives, and filing footnotes.

• research.sec-financial-facts

  Retrieve normalized, recent issuer-reported revenue, earnings, balance-sheet, cash-flow, and diluted-EPS facts from official SEC XBRL data.

• research.sec-company-evidence

  Resolve an exact SEC company name, ticker, or CIK, then bundle recent filing signals, normalized issuer-reported XBRL facts, and Form 4 insider transactions into one bounded public-company evidence report with explicit section coverage…

• research.crossref-work-search

  Search open Crossref bibliographic metadata by title, author, DOI fragment, or citation and return bounded normalized publication, author, citation, license, and update metadata without abstracts or full text.

• research.crossref-doi-metadata

  Resolve one DOI into normalized open Crossref bibliographic, author, container, citation-count, license, identifier, and correction or retraction-link metadata without abstracts or full text.

• research.wikidata-organization-search

  Search CC0 Wikidata organization candidates and normalize public websites, inception dates, company identifiers, entity types, countries, industries, headquarters, parent, founder, owner, subsidiary, and product links with explicit…

• data.ecb-fx-reference

  Convert an amount between two supported currencies using one validated ECB daily reference-rate observation. The underlying ECB statistics are available free from the ECB Data Portal; the fee covers bounded retrieval, validation, clearly…

• data.place-geocode

  Resolve one global city or locality name into bounded, population-ranked GeoNames coordinates, country and first-level-region identity, population, timezone, feature code, and source freshness without a request-time network call.

• data.reverse-geocode

  Resolve one latitude/longitude pair into bounded, great-circle-distance-ranked nearby GeoNames populated places with country, first-level region, population, timezone, feature code, and source freshness without a request-time network call.

• data.us-address-geocode

  Geocode one structural address in the United States, Puerto Rico, or U.S. Island Areas with normalized U.S. Census MAF/TIGER coordinates, optional bounded state/county/tract/block/congressional geography, exact source attribution, and…

• data.current-weather

  Get one current weather snapshot for a city/locality name or exact coordinates. Returns the nearest NOAA/NWS station observation where available; otherwise returns the latest MET Norway model point, always labeled explicitly as…

• data.us-weather-forecast

  Get a global weather forecast for a city/locality name or exact coordinates. Returns normalized day/night or hourly periods worldwide: NOAA/NWS is preferred within supported U.S. coverage for optional station conditions and active alerts…

• data.timezone-convert

  Convert an offset-aware ISO 8601 instant or a local wall time between IANA time zones with explicit DST gap and repeated-hour handling, nearby transition evidence, and a pinned local time-zone database.

The first 60 of 73, as the server listed them.