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API Acre

REMOTE · APIACRE.COM · SCANNED SEP 20

73 x402-paid Base and Solana APIs with free discovery, samples, workflows, and Pixel Acre.

Available components

0 this week 86 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security80
Transport & Reachability100
Schema Quality & AI Usability82
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 7323 tokens (~97/item across 75 items; 73 tools + 2 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
Tool Coverage87
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 55% of tool parameters carry a description.Partial
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "data.deduplicate" implies "remove" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
  • An AI judge read all 75 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
Install

How do I install the API Acre MCP server?

API Acre is a hosted endpoint at https://apiacre.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · apiacre.com

# add to Claude Code
claude mcp add --transport http com-apiacre-api-acre 'https://apiacre.com/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "com-apiacre-api-acre": {
      "url": "https://apiacre.com/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "com-apiacre-api-acre": {
      "type": "http",
      "url": "https://apiacre.com/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.com-apiacre-api-acre]
url = "https://apiacre.com/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-apiacre-api-acre": {
      "type": "remote",
      "url": "https://apiacre.com/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add com-apiacre-api-acre --url 'https://apiacre.com/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  com-apiacre-api-acre:
    url: "https://apiacre.com/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "com-apiacre-api-acre": {
      "Transport": "http",
      "Url": "https://apiacre.com/mcp"
    }
  }
}
# add to Vellum
assistant mcp add com-apiacre-api-acre -t streamable-http -u 'https://apiacre.com/mcp'
// mcp.json
{
  "mcpServers": {
    "com-apiacre-api-acre": {
      "type": "http",
      "url": "https://apiacre.com/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 8 Sept 26 0
    • Stability: 0.97 → pass security
  • 7 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 5 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 3 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Sept 26 0
    • “data.schemaorg-normalize” reworded the description of “html” cosmetic

    1 cosmetic change on this day. Switch on “Show cosmetic changes” to see it.

  • 1 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

  • 30 Aug 26 0
    • Server version: 0.1.35 → 0.1.36 functional
    • New tool “research.crossref-doi-metadata” functional
    • New tool “research.crossref-work-search” functional
    • New tool “research.wikidata-organization-search” functional
  • 29 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Probed https://apiacre.com/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=apiacre.com CN=WE1,O=Google Trust Services,C=US 8 Aug 2026 6 Nov 2026 ECDSA 256 ECDSA-SHA256 dbb462d0cec22670ee50aab8c0f65dc
SANs: apiacre.com, *.apiacre.com
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of apiacre.com. Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
apiacre.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=31536000; includeSubDomains
x-content-type-options nosniff
referrer-policy strict-origin-when-cross-origin
permissions-policy camera=(), microphone=(), geolocation=()

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://apiacre.com/mcp Verified 200
http (plaintext) http://apiacre.com/mcp HTTPS enforced 308 https://apiacre.com/mcp
MCP tools · 73 exposed · ~7,189 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
research.crossref-doi-metadata ~55

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.

NameTypeReqDescription
doistringyes
NameTypeReqDescription
dataobjectyesStructured Crossref DOI metadata enrichment result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.crossref-work-search ~103

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.

NameTypeReqDescription
max_resultsinteger
published_from
published_until
querystringyesTitle, author, DOI fragment, or bibliographic citation to search
sort_bystring
work_type
NameTypeReqDescription
dataobjectyesStructured Crossref scholarly work search result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.federal-register-search ~154

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 govinfo.gov PDFs.

NameTypeReqDescription
agency_slugsarrayOptional exact FederalRegister.gov agency slugs, such as commerce-department
document_typesarrayOptional document types: RULE, PRORULE, NOTICE, or PRESDOCU
max_resultsintegerMaximum newest-first documents returned
published_fromOptional inclusive publication-date lower bound
published_toOptional inclusive publication-date upper bound
queryOptional full-text Federal Register search term
NameTypeReqDescription
dataobjectyesStructured Federal Register document search result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.feed-normalize ~43

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

NameTypeReqDescription
limitinteger
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Feed normalization result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.lei-entity-search ~112

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.

NameTypeReqDescription
country_codeOptional ISO 3166-1 alpha-2 legal-address country filter
legal_nameRegistered or commonly used legal entity name
leiExact 20-character Legal Entity Identifier (LEI)
max_resultsintegerMaximum candidates returned for a name search
NameTypeReqDescription
dataobjectyesStructured GLEIF legal entity search result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.news-aggregate ~84

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

NameTypeReqDescription
deduplicate_bystring
feedsarrayyes
keywordsarray
limitinteger
per_feed_limitinteger
since_hours
NameTypeReqDescription
dataobjectyesStructured Multi-feed news aggregation result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.ofac-entity-search ~148

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 evidence without issuing an allow or block verdict.

NameTypeReqDescription
entity_namestringyesOrganization or business name to compare with separately named OFAC Entity records
include_weak_aliasesbooleanInclude aliases that OFAC labels weak and warns may create false positives
max_resultsintegerMaximum candidate records to return after deterministic ranking
minimum_scoreintegerMinimum API Acre similarity score to return; this is not OFAC's interactive-search score
NameTypeReqDescription
dataobjectyesStructured OFAC entity candidate evidence result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.organization-evidence ~147

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 identity, linkage, risk, or compliance verdict.

NameTypeReqDescription
country_codeOptional ISO 3166-1 alpha-2 filter applied only to GLEIF candidates
legal_namestringyesOrganization legal or trading name used independently across official GLEIF, USAspending, SEC, and OFAC organization records
sec_identifierOptional SEC ticker or CIK; when absent, the exact organization name is resolved against the SEC company directory
NameTypeReqDescription
dataobjectyesStructured Official supplier evidence report result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.sec-company-evidence ~197

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 and official-source provenance.

NameTypeReqDescription
filing_lookback_daysinteger
financial_metricsarrayNormalized issuer-reported financial metrics to include
financial_period_typestring
financial_periodsinteger
formsarrayOptional exact SEC form filters for the filing-activity section
identifierstringyesExact SEC company name, SEC CIK, or U.S.-listed ticker symbol
include_derivativesbooleanInclude derivative securities in the Form 4 section
insider_lookback_daysinteger
max_filingsinteger
max_insider_filingsinteger
NameTypeReqDescription
dataobjectyesStructured SEC public company evidence bundle result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.sec-filing-signals ~116

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.

NameTypeReqDescription
formsarrayOptional exact SEC form filters, such as 10-K, 10-Q, or 8-K
identifierstringyesSEC CIK or U.S.-listed ticker symbol
lookback_daysinteger
max_filingsinteger
NameTypeReqDescription
dataobjectyesStructured SEC filing activity signals result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.sec-financial-facts ~91

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

NameTypeReqDescription
identifierstringyesSEC CIK or U.S.-listed ticker symbol
metricsarrayNormalized financial metrics to return
period_typestring
periodsintegerObservations per metric
NameTypeReqDescription
dataobjectyesStructured SEC normalized financial facts result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.sec-insider-transactions ~122

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.

NameTypeReqDescription
identifierstringyesSEC CIK or U.S.-listed ticker symbol
include_derivativesbooleanInclude option, restricted-stock-unit, and other derivative transactions
lookback_daysinteger
max_filingsinteger
NameTypeReqDescription
dataobjectyesStructured SEC Form 4 insider transactions result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.us-contract-search ~177

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 interpretation limits.

NameTypeReqDescription
end_dateOptional inclusive award-action upper bound; defaults to today
max_resultsintegerMaximum highest-award-amount prime contracts returned
maximum_award_amountOptional maximum current aggregate contract-award amount in whole USD
minimum_award_amountOptional minimum current aggregate contract-award amount in whole USD
recipient_querystringyesRecipient organization name, UEI, or legacy DUNS to search across public USAspending prime-contract records
start_dateOptional inclusive award-action lower bound; defaults to five years before end_date
NameTypeReqDescription
dataobjectyesStructured U.S. federal contract search result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

research.wikidata-organization-search ~81

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 non-verification caveats.

NameTypeReqDescription
languagestring
max_resultsinteger
organization_namestringyes
NameTypeReqDescription
dataobjectyesStructured Wikidata organization candidate search result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.accessibility-audit ~35

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Accessibility audit result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.business-due-diligence ~124

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 vendor-approval limitations.

NameTypeReqDescription
country_codeOptional ISO 3166-1 alpha-2 legal-address country filter
legal_nameOptional registered company name to match against public GLEIF LEI records. A match does not prove that the company owns the supplied domain.
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Website and domain technical due diligence result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.domain-intelligence ~55

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.

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Domain intelligence result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.email-auth ~95

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.

NameTypeReqDescription
dkim_selectorsarrayOptional known DKIM selectors to query; selectors cannot be discovered reliably from DNS alone
domainstringyesPublic DNS domain to inspect without a URL scheme or path
NameTypeReqDescription
dataobjectyesStructured Email authentication posture result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.extract ~68

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 agent context.

NameTypeReqDescription
outputstring
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Web content extraction result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.full-audit ~36

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Full site audit result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.links ~84

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.

NameTypeReqDescription
include_externalboolean
max_depthinteger
max_pagesinteger
respect_robotsboolean
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Link and site-map analysis result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.metadata ~75

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, publisher-asserted Organization facts with field evidence.

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Webpage metadata extraction result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.performance-profile ~36

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Performance profile result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.robots-sitemap ~37

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Robots and sitemap audit result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.security-audit ~36

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Web security audit result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.seo-audit ~70

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.

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Technical SEO audit result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

web.tech-fingerprint ~36

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

NameTypeReqDescription
urlstringyes
NameTypeReqDescription
dataobjectyesStructured Technology fingerprint result
metaobjectyes
request_idstringyesUnique request identifier
servicestringyes
versionstringyes

No examples provided.

Common questions

What is the API Acre MCP server?

API Acre is an MCP server listed in the public MCP registry as com.apiacre/api-acre. 73 x402-paid Base and Solana APIs with free discovery, samples, workflows, and Pixel Acre. This page covers its hosted endpoint (https://apiacre.com/mcp).

Is the API Acre MCP server safe to use?

API Acre scores 86 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the API Acre MCP server expose?

API Acre exposes 73 tools: web.extract, web.metadata, web.seo-audit, web.security-audit, web.accessibility-audit, and 68 more. Their descriptions and schemas cost roughly 7,189 tokens of context every time the server is loaded.

Does the API Acre MCP server require authentication?

No. We connected to API Acre without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the API Acre MCP server still maintained?

API Acre is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.