Japan Public Ledgers MCP

Tamper-evident daily ledgers of 12 Japanese public-data domains, with cross-ledger entity search.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Tamper-evident daily ledgers of 12 Japanese public-data domains, with cross-ledger entity search.

    How to connect

    How to connect Japan Public Ledgers MCP to Claude

    The server address to paste into Claude settings:

    https://mcp.mcp-revenue-empire.com/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Japan Public Ledgers MCP to ChatGPT

    The server address to paste into ChatGPT settings:

    https://mcp.mcp-revenue-empire.com/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Japan Public Ledgers MCP to Cursor

    The server address to paste into Cursor settings:

    https://mcp.mcp-revenue-empire.com/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (172)

    Raw names from tools/list. Only developers need these.

    verify_receiptVerify a provenance receipt (F-037): recomputes the HMAC signature, checks the intra-receipt chain linkage, and — when the receipt carries an external anchor reference — confirms it against the published F-028 anchor. Returns {valid:true, anchor:"verified"|"pending"|"unverified"} or {valid:false, reason:"signature_mismatch"|"chain_link_broken"|"anchor_mismatch"|"malformed"}. Tamper-evident; price 0.0 (free).
    agent_memory_storeStore a memory for an AI agent (key-value, with TTL and metadata)
    agent_memory_getRetrieve a stored memory by key
    agent_memory_searchSearch memories by prefix, tags, or type
    agent_memory_deleteDelete a memory or all memories in a namespace
    agent_audit_recordRecord an agent action for audit and compliance
    agent_audit_queryQuery agent actions with filters
    agent_audit_reportGenerate audit report (json/markdown/soc2 format)
    agent_tempmail_createCreate a temporary email address (auto-expires)
    agent_tempmail_listList received messages in a mailbox
    agent_tempmail_getGet full message content with extracted verification links/codes
    agent_tempmail_waitWait for an incoming message (long polling, max 60s)
    agent_captcha_verify_domainVerify ownership of a domain before using CAPTCHA solving
    agent_captcha_solveSolve a CAPTCHA for a domain you own or have explicit permission to access
    agent_proxy_fetchFetch a URL via a rotating proxy (region/type selectable). robots.txt enforced.
    agent_proxy_sessionCreate a sticky proxy session (same IP for multiple requests)
    agent_trust_scoreGet trust score for a wallet, agent card URL, or domain
    agent_trust_feedbackSubmit feedback about an agent/wallet (positive or negative)
    agent_trust_batchGet trust scores for multiple subjects in one call (max 100)
    agent_webhook_createCreate a webhook endpoint that relays requests to your agent
    agent_webhook_pollPoll for new webhook requests (long polling, max 60s)
    agent_webhook_replayReplay a stored webhook request
    agent_webhook_list_requestsList requests received by a webhook endpoint
    agent_identity_registerRegister an agent and get a unique identity ID + issuer-signed badge. agent_name/metadata are self-reported and unverified.
    agent_identity_badgeGet the issuer-signed badge and signed fields for an identity
    agent_identity_lookupLook up an identity. Returns signatureValid (issuer+integrity only, NOT an authenticity/safety signal) and a disclaimer.
    agent_identity_recordAppend a hash-chained activity record (owner only). Optional provenance (repo/version/config) is self-reported.
    agent_identity_activitiesList activity records for an identity, newest first (owner only)
    subsidy_watch_searchSearch the current state of subsidy programs. Each hit includes firstSeenAt and ledgerVerified (hash-chain integrity).
    subsidy_watch_getGet a subsidy program detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    subsidy_watch_timelineTime-ordered events only for a program (the differentiator: when it appeared, changed, closed). Includes firstSeenAt and ledgerVerified.
    subsidy_watch_recent_changesRecent appearance / change / close events across all programs since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    subsidy_watch_verify_ledgerVerify the hash-chain integrity of a program (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    pubcom_watch_searchSearch e-Gov public-comment notices. Each hit includes firstSeenAt and ledgerVerified (hash-chain integrity).
    pubcom_watch_getGet a public-comment notice detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    pubcom_watch_timelineTime-ordered events only for a notice (the differentiator: when it opened, deadline moved, closed, or result was published). Includes firstSeenAt and ledgerVerified.
    pubcom_watch_recent_changesRecent appearance / deadline-move / close / result-published events across all notices since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    pubcom_watch_verify_ledgerVerify the hash-chain integrity of a notice (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    grant_watch_searchSearch Japanese research-grant calls-for-proposals. Each hit includes firstSeenAt and ledgerVerified (hash-chain integrity).
    grant_watch_getGet a grant call detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    grant_watch_timelineTime-ordered events only for a grant call (the differentiator: when it opened, deadline moved, closed, or closed early). Includes firstSeenAt and ledgerVerified.
    grant_watch_recent_changesRecent appearance / deadline-move / close / close-early events across all grant calls since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    grant_watch_verify_ledgerVerify the hash-chain integrity of a grant call (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    bid_watch_searchSearch Japanese public-procurement bid notices (kkj.go.jp). Each hit includes firstSeenAt and ledgerVerified.
    bid_watch_getGet a bid notice detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    bid_watch_timelineTime-ordered events only for a bid notice (the differentiator: when it appeared, deadline moved, closed, was cancelled or awarded). Includes firstSeenAt and ledgerVerified.
    bid_watch_recent_changesRecent appearance / deadline-move / close / cancel / award events across all bid notices since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    bid_watch_verify_ledgerVerify the hash-chain integrity of a bid notice (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    sanction_watch_searchSearch Japanese administrative sanctions (FSA jirei archive). Each hit includes firstSeenAt and ledgerVerified.
    sanction_watch_getGet a sanction detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    sanction_watch_timelineTime-ordered events only for a sanction (the differentiator: when it appeared and when it was lifted). Includes firstSeenAt and ledgerVerified.
    sanction_watch_recent_changesRecent appearance / lift events across all sanctions since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    sanction_watch_verify_ledgerVerify the hash-chain integrity of a sanction record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    license_watch_searchSearch Japanese license / registration ledgers (FSA menkyo: 金融商品取引業者, 預金取扱金融機関 …). Each hit includes firstSeenAt and ledgerVerified.
    license_watch_getGet a license registration detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    license_watch_timelineTime-ordered events only for a license registration (the differentiator: when it appeared, when it was revoked / expired / suspended). Includes firstSeenAt and ledgerVerified.
    license_watch_recent_changesRecent appearance / revoked / suspended events across all license ledgers since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    license_watch_verify_ledgerVerify the hash-chain integrity of a license registration (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    recall_watch_searchSearch Japanese product / food recall notices (consumer-affairs-agency aggregator). Each hit includes firstSeenAt and ledgerVerified.
    recall_watch_getGet a recall detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    recall_watch_timelineTime-ordered events only for a recall (the differentiator: when it appeared, when severity escalated, when it was completed). Includes firstSeenAt and ledgerVerified.
    recall_watch_recent_changesRecent appearance / severity-escalated events across all recalls since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    recall_watch_verify_ledgerVerify the hash-chain integrity of a recall record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    pharma_watch_searchSearch Japanese pharmaceutical approvals (PMDA) and NHI-listed drugs (MHLW yakka). Each hit includes firstSeenAt and ledgerVerified.
    pharma_watch_getGet a pharmaceutical record detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    pharma_watch_timelineTime-ordered events only for a pharma record (the differentiator: when it was approved / NHI-listed / price-revised). Includes firstSeenAt and ledgerVerified.
    pharma_watch_recent_changesRecent approval / NHI-listed / price-revised events across all pharmaceutical records since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    pharma_watch_verify_ledgerVerify the hash-chain integrity of a pharma record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    ordinance_watch_searchSearch Japanese national laws / ordinances (e-Gov 法令検索 v2; Stage 1 covers the national level only — 自治体例規 ships in a follow-up). Each hit includes firstSeenAt and ledgerVerified.
    ordinance_watch_getGet an ordinance detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    ordinance_watch_timelineTime-ordered events only for an ordinance (the differentiator: when it appeared / was amended / was repealed). Includes firstSeenAt and ledgerVerified.
    ordinance_watch_recent_changesRecent appearance / amendment / repeal events across all ordinances since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    ordinance_watch_verify_ledgerVerify the hash-chain integrity of an ordinance record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    tos_watch_searchSearch Japanese / English-language SaaS Terms of Service snapshots (Stripe / Anthropic / AWS / Google Cloud / GitHub …). Stage 1 covers 'terms' docs. Each hit includes firstSeenAt and ledgerVerified.
    tos_watch_getGet a ToS snapshot detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    tos_watch_timelineTime-ordered events only for a ToS document (the differentiator: when it appeared and each revision since). Includes firstSeenAt and ledgerVerified.
    tos_watch_recent_changesRecent revised events across all SaaS ToS documents since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    tos_watch_verify_ledgerVerify the hash-chain integrity of a ToS document (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    realestate_watch_searchSearch Japanese real-estate transaction prices (MLIT reinfolib XIT001). Each hit is a single trade snapshot, ledgered for tamper-detection. Includes firstSeenAt and ledgerVerified.
    realestate_watch_getGet a real-estate transaction record detail plus full event timeline. Returns firstSeenAt and ledgerVerified.
    realestate_watch_timelineTime-ordered events only for a real-estate record (the differentiator: when it appeared / was revised). Includes firstSeenAt and ledgerVerified.
    realestate_watch_recent_changesRecent appearance / revised events across all real-estate records since the given ISO8601 timestamp. Each item includes firstSeenAt and ledgerVerified.
    realestate_watch_verify_ledgerVerify the hash-chain integrity of a real-estate record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    landprice_watch_searchSearch Japanese 地価公示 (MLIT 国土数値情報 L01) standard-land snapshots. Each hit is one standard point for a given year, ledgered for tamper-detection. Returns ledgerVerified per hit.
    landprice_watch_getGet a 地価公示 standard-land record detail plus its full event timeline (price revisions, reissues, vanish events). Returns firstSeenAt and ledgerVerified.
    landprice_watch_timelineTimeline view of one standard-land point — all observation events with diff, observedAt and chain-hash entries. ledgerVerified is computed end-to-end against IDENTITY_SIGNING_SECRET.
    landprice_watch_recent_changesList landprice events observed after the given ISO8601 timestamp. Optional prefectureCode filter.
    landprice_watch_verify_ledgerVerify the hash-chain integrity of a landprice record (tamper detection). Returns chainValid, brokenAt (if any), checked event count, firstSeenAt and ledgerVerified.
    entity_searchSearch a company/person name across ALL ledgers (sanctions, licenses, recalls, pharma, bids, subsidies, grants, public comments, ordinances, ToS, real-estate, land-price). Returns hits grouped per ledger, each with matchedField, a summary, detailUrl and ledgerVerified (hash-chain integrity). ledgerVerified proves the records were not altered after they were recorded here — NOT the truth of the underlying data.
    temporal_queryReconstruct what a ledger item (or items matching a query) officially said AS OF a past date T, by replaying the kept event history. Returns each item's point-in-time state plus an F-037 provenance receipt (observed_at = the state's effective time). existence:false with a first_seen receipt when the item did not yet exist at T; latest state with as_of_clamped:false when T is in the future. Read-only; price 0.0.
    kyb_reportTurn a company/entity name into a structured English KYB / due-diligence report for foreign-inbound buyers. Aggregates cross-ledger hits (administrative sanctions, licenses, public bids, recalls, etc.) via entity_search, summarizes them (counts + deterministic risk_flags), and attaches an F-037 provenance receipt to EACH hit so the screening is auditable. No model-invented facts: every asserted fact originates from a ledger hit and carries a receipt. Informational only; not legal advice. Price 0.0.
    alerts_create_watchCreate a saved watch: when a NEW matching event appears in a ledger, a notification is pushed to your destination. Filters: ledger (optional), keyword and/or entity (case-insensitive title substring). At least one filter is required. Backfill never fires.
    alerts_list_watchesList the calling user's saved watches.
    alerts_delete_watchDeactivate a saved watch by id (soft delete; stops future notifications).
    freshness_subscribeSubscribe a machine/AI pipeline to ledger-change notifications: when a matching record changes, a signed "stale" event (with an F-037 receipt proving the change) is POSTed to your callback_url so your RAG/index can re-index. Filters: ledger (optional), entity and/or topic (case-insensitive title substring). At least one filter is required. Body is HMAC-signed with your secret (X-Receipt-Signature). Backfill never fires. Price 0.0.
    freshness_listList the calling user's freshness webhook subscriptions (the stored secret is never returned).
    freshness_unsubscribeDeactivate a freshness webhook subscription by id (soft delete; stops future deliveries).
    domain_intel_dns_lookupResolve A / AAAA / MX / TXT / NS / CNAME records for a domain via DNS-over-HTTPS (Cloudflare 1.1.1.1 JSON). Read-only; price 0.0 (free).
    domain_intel_whois_summaryDomain age / registrar / expiry summary via RDAP over HTTPS (no legacy port-43 WHOIS). Returns registeredAt, expiresAt, ageDays, registrar, status and nameservers. Read-only; price 0.0 (free).
    domain_intel_tls_cert_infoTLS certificate issuer / validity / SAN summary sourced from public Certificate-Transparency logs (crt.sh JSON). Picks the freshest leaf and reports currentlyValid + daysUntilExpiry. Read-only; price 0.0 (free).
    domain_intel_email_auth_checkParse SPF / DMARC / DKIM presence and policy from TXT records (via DoH). SPF all-qualifier (strict/softfail/neutral/pass), DMARC p= policy + pct + rua, and best-effort DKIM selector probing. Read-only; price 0.0 (free).
    domain_intel_reputationTransparent heuristic reputation score (0-100) combining domain age, TLS validity and email-auth strictness (SPF/DMARC) plus an MX signal. Every contribution is returned in `rationale` (no black box). Informational only, not a security guarantee. Read-only; price 0.0 (free).
    onchain_risk_address_riskHeuristic address risk score (0-100) from on-chain reads (code, balance, nonce) plus bundled OFAC-style sanction and flagged lists, over public EVM JSON-RPC. Every contribution is returned in rationale. Read-only; price 0.0 (free).
    onchain_risk_token_safetyERC-20 token safety summary via on-chain eth_call reads: name / symbol / decimals / totalSupply, owner and ownership-renounced signal. Public EVM JSON-RPC. Read-only; price 0.0 (free).
    onchain_risk_sanctions_screenScreen an address against the bundled OFAC-style sanction list; returns the sanctioned flag, any matches and the list size. Pure list lookup. Read-only; price 0.0 (free).
    onchain_risk_contract_verifyContract / bytecode summary: whether the address is a contract, bytecode size and any embedded CBOR metadata, via public EVM JSON-RPC and block-explorer / Sourcify HTTPS. Read-only; price 0.0 (free).
    onchain_risk_approval_riskERC-20 approval exposure: scans Approval logs granted by the address and flags unlimited / active allowances, via eth_getLogs over public EVM JSON-RPC. Read-only; price 0.0 (free).
    price_oracle_crypto_priceLive crypto spot price via the CoinGecko public API. Returns the price of symbol in the requested fiat quote. Read-only; price 0.0 (free).
    price_oracle_fx_rateFiat FX rate via the Frankfurter / ECB reference API. Returns the to units per one from unit plus the reference date. Read-only; price 0.0 (free).
    price_oracle_convertConvert an amount between any two supported currencies (crypto or fiat), routing each leg through its USD value. Returns the rate and converted amount. Read-only; price 0.0 (free).
    price_oracle_price_historyOHLC price history for a crypto symbol via the CoinGecko public API, with a min / max / change summary. Read-only; price 0.0 (free).
    price_oracle_stablecoin_pegStablecoin peg check: signed deviation (basis points) of the current price from the 1 USD target, with a banded status. Read-only; price 0.0 (free).
    commerce_catalog_product_extractExtract a normalized product (name, price, currency, availability, brand, GTIN, ...) from Schema.org / JSON-LD markup. Provide a url to fetch or raw html. Read-only; price 0.0 (free).
    commerce_catalog_catalog_validateValidate product-feed completeness: which required fields are present or missing and a completeness score, from a url, raw html, or an inline product object. Read-only; price 0.0 (free).
    commerce_catalog_price_compareCompare a set of offers and return the cheapest, most expensive, spread and per-offer ranking. Requires a non-empty offers array. Pure; price 0.0 (free).
    commerce_catalog_availability_checkResolve product stock availability to a coarse signal (in_stock / out_of_stock / limited / preorder / unknown), from a url, raw html, or inline product. Read-only; price 0.0 (free).
    commerce_catalog_agent_readiness_scoreAgentic-commerce readiness score (0-100) for how well a product is structured for autonomous agents, with a transparent rationale, from a url, raw html, or inline product. Read-only; price 0.0 (free).
    content_authenticity_c2pa_inspectDetect a C2PA / Content Credentials manifest by scanning the raw image bytes for JUMBF / C2PA markers and lifting any human-readable claim generator. Provide an image url. Read-only; one HTTPS GET; price 0.0 (free).
    content_authenticity_ai_likelihoodHeuristic likelihood (0-100) that a passage of text is AI-generated, from lexical-diversity and burstiness signals with a transparent rationale. Pure, no network; price 0.0 (free).
    content_authenticity_provenance_checkCombined media-provenance verdict for an image url: C2PA presence plus the hosting domain reputation, with rationale. Read-only; price 0.0 (free).
    content_authenticity_domain_reputationTransparent heuristic reputation score (0-100) for a domain combining age, TLS validity, DNS / MX and SPF / DMARC signals via free HTTPS (DoH / RDAP / CT). Read-only; price 0.0 (free).
    content_authenticity_watermark_detectBest-effort watermark and provenance-marker detection from the raw image bytes (e.g. C2PA / IPTC / XMP markers). Provide an image url. Read-only; price 0.0 (free).
    sanctions_screen_entityScreen an entity name against public consolidated sanctions lists (OFAC SDN / UN / EU), fetched at request time. Returns scored fuzzy matches with programs and countries. Informational only, not legal advice. Read-only; price 0.0 (free).
    sanctions_screen_by_countrySummarize sanction programs and entity counts associated with a country (name or ISO-3166 code) across the consolidated lists. Read-only; price 0.0 (free).
    sanctions_screen_list_programsList sanction programs known across the consolidated lists, with per-program entity counts. Optionally filter by source. Read-only; price 0.0 (free).
    sanctions_screen_check_addressScreen a physical or crypto address string against address entries in the consolidated sanctions lists. Read-only; price 0.0 (free).
    sanctions_screen_list_sourcesList the sanctions data sources queried (OFAC SDN / UN / EU) with metadata. Read-only; price 0.0 (free).
    geo_intel_geocodeForward-geocode a place / address query to coordinates via the free OpenStreetMap Nominatim API. Returns ranked results with lat/lon and display name. Read-only; price 0.0 (free).
    geo_intel_reverse_geocodeReverse-geocode a lat/lon coordinate to the nearest address / place via OpenStreetMap Nominatim. Read-only; price 0.0 (free).
    geo_intel_timezoneResolve the IANA timezone, abbreviation and current UTC offset for a lat/lon coordinate via the free Open-Meteo API. Read-only; price 0.0 (free).
    geo_intel_distanceGreat-circle (haversine) distance between two lat/lon coordinates, in kilometres and miles. Pure math; price 0.0 (free).
    geo_intel_bbox_centerCompute the center point plus width/height (km) of a geographic bounding box. Pure math; price 0.0 (free).
    weather_risk_current_weatherCurrent weather (temperature, apparent temperature, humidity, precipitation, wind, weather code) for a lat/lon via the free Open-Meteo API. Read-only; price 0.0 (free).
    weather_risk_forecastDaily weather forecast (temp max/min, precipitation probability, wind, weather code) for up to N days for a lat/lon via the free Open-Meteo API. Read-only; price 0.0 (free).
    weather_risk_severe_flagsSevere-weather flags (heavy rain / high wind / extreme heat / frost) derived from the Open-Meteo forecast, each with its threshold and worst value. Read-only; price 0.0 (free).
    weather_risk_air_qualityAir-quality snapshot (PM2.5, PM10, US / European AQI and a coarse category) for a lat/lon via the free Open-Meteo air-quality API. Read-only; price 0.0 (free).
    weather_risk_heat_indexCompute the heat index (feels-like temperature) and risk category from air temperature (Celsius) and relative humidity. Pure compute; price 0.0 (free).
    company_registry_search_companySearch for companies by name (optionally scoped to a jurisdiction) via the OpenCorporates open API. Returns candidate companies for disambiguation. Read-only; price 0.0 (free).
    company_registry_company_profileFetch a company profile (name, status, incorporation / dissolution dates, type, address) by jurisdiction + company number via OpenCorporates. Read-only; price 0.0 (free).
    company_registry_officersList a company officers (name, position, start / end dates, current flag) by jurisdiction + company number via OpenCorporates. Read-only; price 0.0 (free).
    company_registry_validate_numberValidate a company-registration number against the expected format for its jurisdiction. Pure compute; returns valid flag, normalized value and reason. Price 0.0 (free).
    company_registry_jurisdiction_infoLook up metadata for a jurisdiction code (name, registry details). Pure compute; price 0.0 (free).
    carbon_estimate_shipping_emissionsEstimate freight CO2e (kg) from weight, distance and transport mode using embedded GLEC/DEFRA-order emission factors. Pure compute; price 0.0 (free).
    carbon_estimate_compute_emissionsEstimate electricity CO2e (kg) from energy use (kWh) and a regional grid-intensity factor (defaults to the IEA world average). Pure compute; price 0.0 (free).
    carbon_estimate_travel_emissionsEstimate passenger-travel CO2e (kg) from distance and travel mode using embedded per-passenger-km factors. Pure compute; price 0.0 (free).
    carbon_estimate_offset_estimateEstimate voluntary-market offset cost (USD) and tree- / forest-year equivalents for a given kg CO2e, using published constants. Pure compute; price 0.0 (free).
    carbon_estimate_emission_factorLook up the published emission factor (value, unit, category) for a named activity key (e.g. shipping_air, electricity_global, travel_car, gasoline, beef). Pure compute; price 0.0 (free).
    email_verify_verify_syntaxValidate and normalize an email address (syntax/structure only): returns valid, normalized address, local-part and domain, plus a reason on failure. Pure; price 0.0 (free).
    email_verify_check_mxList MX records (exchange + priority, sorted) for a domain via free DNS-over-HTTPS to gauge mail deliverability. Accepts a bare domain or a full email address. Read-only; price 0.0 (free).
    email_verify_detect_disposableCheck whether a domain is a known disposable / throwaway email provider against a bundled list. Accepts a bare domain or a full email address. Pure; price 0.0 (free).
    email_verify_check_spfFetch and parse the SPF policy from domain TXT records via DNS-over-HTTPS: presence, raw record, all-qualifier (strict/softfail/neutral/pass) and includes. Accepts a bare domain or a full email address. Read-only; price 0.0 (free).
    email_verify_role_accountDetect whether an email local-part is a role/group account (e.g. info, support, admin) against a bundled list. Accepts a full email address or a bare localPart. Pure; price 0.0 (free).
    ip_reputation_classify_ipClassify an IPv4/IPv6 address into special-use categories (public, private, loopback, link-local, CGNAT, reserved, etc.) from bundled IANA special-use ranges. Pure; price 0.0 (free).
    ip_reputation_reverse_dnsResolve the reverse-DNS (PTR) hostname(s) for an IP via free DNS-over-HTTPS. Read-only; price 0.0 (free).
    ip_reputation_asn_lookupLook up origin ASN, network name, prefix and country for an IP via Team Cymru origin lookup (DoH) plus RDAP. Read-only; price 0.0 (free).
    ip_reputation_detect_datacenterHeuristically detect whether an IP belongs to a datacenter/hosting range using bundled CIDR lists. Read-only; price 0.0 (free).
    ip_reputation_risk_scoreTransparent heuristic IP risk score (0-100) combining classification, datacenter and reverse-DNS signals; every contribution is returned in the rationale. Informational only. Read-only; price 0.0 (free).
    fx_tax_convertConvert an amount between currencies using free, keyless public FX rates (Frankfurter/ECB), fetched on demand. Returns the rate and converted amount. Read-only; price 0.0 (free).
    fx_tax_vat_calcCompute VAT for an amount in a given country from built-in VAT rate tables: net, VAT and gross, standard or reduced rate, treating the amount as VAT-inclusive or exclusive. Pure; price 0.0 (free).
    fx_tax_vat_validateValidate the structural format of an EU VAT number (country prefix + national pattern). Format check only; no VIES call. Pure; price 0.0 (free).
    fx_tax_sales_taxLook up the sales-tax rate for a region from built-in tables and, if an amount is given, compute net/tax/gross. Pure; price 0.0 (free).
    fx_tax_list_ratesList all built-in VAT and sales-tax rate tables (country/region, rate, type). Deterministic; no input. Pure; price 0.0 (free).
    cve_lookup_get_cveFetch a single CVE record by id from the free NVD CVE API 2.0: description, CVSS, published/modified dates and references. Read-only; price 0.0 (free).
    cve_lookup_search_cveKeyword-search CVEs via the free NVD CVE API 2.0, returning id, base score, severity and published date. Read-only; price 0.0 (free).
    cve_lookup_cvss_parseParse a CVSS v3.0/3.1 vector string into base score, severity and per-metric labels. Fully deterministic; no network I/O; price 0.0 (free).
    cve_lookup_package_advisoryLook up known vulnerabilities for a package via the free OSV.dev API, optionally filtered to a specific version. Read-only; price 0.0 (free).
    cve_lookup_severity_summaryFetch multiple CVEs (from NVD) and aggregate a severity distribution and worst-case summary for the set. Read-only; price 0.0 (free).
    holiday_calendar_is_holidayDetermine whether an ISO date is a public holiday for a country (US/GB/JP/DE) from a built-in rule-based dataset; returns the holiday name when matched. Pure/offline; price 0.0 (free).
    holiday_calendar_next_business_dayCompute the business day N steps from an ISO date, skipping weekends and country holidays (negative offset goes backward). Pure/offline; price 0.0 (free).
    holiday_calendar_business_days_betweenCount business days between two ISO dates, excluding weekends and country holidays. Pure/offline; price 0.0 (free).
    holiday_calendar_list_holidaysList the public holidays for a country in a given year from the built-in dataset. Pure/offline; price 0.0 (free).
    holiday_calendar_tz_convertConvert a wall-clock datetime (YYYY-MM-DDTHH:MM(:SS)?) from one IANA timezone to another using the platform Intl database. Pure/offline; price 0.0 (free).