Individual APIs this provider publishes, each with its own machine-readable definition.
Pay-per-call data APIs for AI agents: 547 endpoints across 66 APIs covering UK company, property, legal and public-sector data, economics, research, web and domain tools. Every ...
Airports Worldwide: Every airport, airfield and heliport worldwide: ICAO/IATA codes, location, elevation, runways, radio frequencies and nearby navaids — look up by code, search...
arXiv Papers: Search arXiv preprints and get clean metadata and abstracts, plus the newest papers in AI, ML, NLP, physics, finance and more.
Bank of England Rates: Bank Rate, SONIA, sterling exchange rates, gilt yields and average UK mortgage and loan rates.
Bathing Water Quality: Every designated bathing water in England — beaches, lakes and river swimming sites — with its latest classification (excellent to poor), today's pollutio...
Calculators: Currency conversion at ECB reference rates, UK business-day maths with official bank holidays, and postcode-to-postcode distance.
Clinical Trials (ClinicalTrials.gov): Search 500,000+ registered clinical studies by condition, drug, sponsor, place, status and phase; full study records and recruitment counts.
UK Companies House: Every UK company: search, profile, status, registered office, filings, charges and insolvency.
Crossref DOI Metadata: Resolve DOIs to bibliographic metadata and search scholarly works, journals and funders.
Domains & DNS: Is a domain available, who registered it and when, its DNS records, and how well its email is authenticated (SPF, DMARC, MX).
Earthquakes (USGS): Worldwide earthquakes in near real time: recent feeds, regional search and counts.
ECB Rates: Euro foreign exchange reference rates, ECB policy rates, €STR and euro area inflation.
EU Public Tenders (TED): Every EU public procurement notice from TED: search by keyword, buyer country, CPV code and date; competitions and awards with winners.
Eurostat: Official EU statistics: GDP, inflation, unemployment, population, house prices and any Eurostat dataset.
US Federal Register: US federal rules, proposed rules, notices and presidential documents: search and detail.
GB Electricity Grid: Live and forecast Great Britain electricity data: generation mix, demand, wind, prices, interconnectors, margins, frequency and plant outages.
Global LEI Register: Legal Entity Identifiers worldwide: lookup, name search, corporate parents and children, ISIN and BIC mapping.
Global Weather (MET Norway): Worldwide weather forecasts, sunrise, sunset and moon phase, and ocean forecasts for any point.
World Public Holidays: Public holidays for ~40 countries and their regions, is-it-a-holiday checks and business-day maths.
IMEI & TAC decoder: Validate an IMEI and decode it to brand, model and device type from our own TAC database.
IP Geolocation & ASN: IP address to country, continent, network owner (ASN) and a hosting/cloud flag, for IPv4 and IPv6.
London Transport: Live Tube, bus, rail and road status, arrivals, journey planning and bike docks across London.
NHS Organisations (ODS): Every NHS organisation and site: GP practices, pharmacies, trusts, ICBs, dental and optical practices, with codes, roles, addresses and relationships.
openFDA: US drug labels, adverse events and recalls, medical device events, recalls and clearances, and food recalls.
Product Recalls & Safety Alerts: UK and US product recalls, food allergy alerts, medicine and medical-device alerts, and UK air, marine and rail accident reports.
PubMed: Search 37M+ biomedical citations and fetch article summaries from PubMed.
Research Organisations (ROR): Identify universities, research institutes, funders and hospitals: search, match messy affiliation strings, look up by GRID/ISNI/Wikidata/Funder ID.
RxNorm Drug Names: Normalise US drug names: name or misspelling to RxCUI, clinical and branded drugs, ingredients and brands, NDC lookups and concept properties.
Sanctions Screening: Fuzzy-screen a person, company or vessel against the US OFAC SDN, UK, EU and UN sanctions lists in one call.
Scholarly Works (OpenAlex): Search 250M+ papers, authors, institutions, journals and topics with citation counts.
Schools in England: Every school and education establishment in England: type, phase, ages, pupils, free school meals, trust, address and location — search by name, postcode or ...
SEC EDGAR: US public company filings and XBRL financials: submissions, company facts, single concepts and cross-company frames.
SEC Ticker Map: Every US-listed ticker mapped to its company name and SEC CIK.
SEO Tools: On-page SEO audit of any URL, link extraction, robots.txt rules for any crawler, and keyword intent.
US Tides & Water Levels: NOAA tide stations across US coasts and the Great Lakes: high and low tide predictions, observed water levels and current station weather (water and air...
Time Zones & Business Days: DST-aware time-zone conversion that flags ambiguous and skipped local times, zone facts with the next clock change, and business days for 40+ countries.
UK Bank Holidays: Official bank holidays for England & Wales, Scotland and Northern Ireland.
UK Company Due Diligence: One call: a UK company's register status, overdue filings, late accounts, recent name and office changes, Gazette insolvency notices, LEI and a sanctio...
UK Consumer Disputes: Parking appeals, energy back-billing, broadband/mobile and water disputes with cited law, deadlines and escalation routes, plus a verified complaints-conta...
UK Economic Indicators: Latest ONS headline figures: inflation, jobs, wages, GDP, retail sales, public debt and trade.
UK Flood & River Levels: Live flood warnings, flood areas, river, sea and rainfall gauges across England from the Environment Agency.
UK Food Hygiene Ratings: Food hygiene ratings for restaurants, takeaways, shops and caterers across the UK.
UK Gazette Estates: Search UK deceased-estates (probate) notices from The Gazette and pull structured notice detail.
UK Geography Codes: How UK areas nest: LSOA, MSOA and parish to ward, local authority, county, region and country, wards to Westminster constituencies, and name search for ONS c...
UK Legislation: Search UK Acts and statutory instruments, read the current (or point-in-time) text of any section, and track amendments.
UK Parliament Bills: Bills before the UK Parliament: search, status, stages, sponsors and publications.
UK Parliament Members: MPs and peers: search, biographies, contact details, voting records, constituencies and government posts.
UK Commons Votes: House of Commons divisions: search votes and see how every MP voted.
UK Planning Constraints: Is a site in a conservation area, listed, green belt, flood zone, SSSI or under an Article 4 direction? Point-in-polygon checks against 30 planning, her...
UK Police Data: Street-level crime, outcomes, stop and search, forces and neighbourhood policing for England, Wales and Northern Ireland.
UK Postcodes: Geocode and describe any UK postcode: coordinates, district, ward, constituency, region.
UK Property & Area: Sold prices, price summaries, house-price-index revaluations, planning designations, council lookup and a one-call area report for any UK postcode.
UK River Levels, Flow & Rainfall: Environment Agency hydrology gauges across England: river levels and flows (m³/s), rainfall totals and groundwater levels, with 15-minute readi...
UK Road Collisions: Police-reported road collisions in Great Britain over the last five years: how many near a postcode or point, by severity and year, plus breakdowns by road, ...
UK Public Tenders: UK public-sector tenders and contract awards from Contracts Finder and Find a Tender: search, read a notice, see who won what.
UK Trade Statistics: HMRC Overseas Trade Statistics: what the UK imports and exports of any product, from and to which countries, by month or year.
UK Trade Tariff: UK commodity codes, import duties and controls by country of origin, quotas, geographical areas and HMRC monthly customs exchange rates.
UK Vehicle Tools: Date a UK number plate, work out MOT due dates, vehicle tax (VED) at April 2026 rates and London ULEZ compliance.
US Federal Spending: US federal contracts, grants and loans from USAspending.gov: search awards by keyword, agency or recipient, read an award, profile a recipient.
US Treasury Fiscal Data: US national debt to the penny, average interest rates on Treasury debt, Treasury exchange rates and daily cash balance.
Vehicle Recalls & Safety (NHTSA): US safety recalls, owner complaints and NCAP crash-test ratings by make, model and year.
Vehicle Decoder (NHTSA vPIC): Decode any VIN (worldwide 17-character) and look up makes, models, manufacturers and WMI codes.
US Weather (NWS): US forecasts, hourly forecasts, active weather alerts and station observations from the National Weather Service.
Validators: Check-digit and format validation for IMEIs, VINs, IBANs, UK phone numbers, UK postcodes and email addresses.
VAT Rates & Checks: UK and EU27 VAT rates, net↔gross VAT maths, and VAT-number format and check-digit validation.
Web Reader: Read any public web page as clean markdown, get its link-preview metadata, or check a URL for warning signs before opening it.
World Bank Indicators: GDP, population, inflation, debt, trade, development and climate indicators for every country.
Model Context Protocol servers that expose these APIs to AI agents.
Packaged agent skills for driving this provider's APIs from an AI assistant.
Documented rate limits and quota policies.
Spectral governance rulesets for linting and validating these APIs.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
OAuth scopes governing access to this provider's APIs.
Recommended x-agentic-access execution contracts for AI agents.
aid: fourzerotwo-si
name: fourzerotwo-si
description: fourzerotwo provides pay-per-call data APIs for AI agents, offering 547 endpoints across 66 APIs covering UK
company, property, legal and public-sector data, economics, research, web and domain tools. Every endpoint is a plain HTTPS
GET that returns HTTP 402 with x402 payment requirements (USDC) and a tool on a single MCP server. Most calls are free within
a daily allowance; paid calls are billed per request. The service is hosted at https://fourzerotwo.si and includes documentation
via llms.txt and an OpenAPI spec.
url: https://artifacts.apis.io/fourzerotwo-si/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- Company
- Data
- API
- AI
- Payments
- MCP
image: https://fourzerotwo.si/icon.png
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: AgenticAccess
url: agentic-access/fourzerotwo-si-agentic-access.yml
- type: Spectral
url: rules/fourzerotwo-si-rules.yml
- type: Vocabulary
url: vocabulary/fourzerotwo-si-vocabulary.yml
- type: AgentSkill
url: skills/_index.yml
- type: ErrorCatalog
url: errors/fourzerotwo-si-problem-types.yml
- type: Conformance
url: conformance/fourzerotwo-si-conformance.yml
- type: LLMsTxt
url: llms/fourzerotwo-si-llms.txt
- type: ToolCrosswalk
url: mcp/fourzerotwo-si-tool-crosswalk.yml
- type: MCPServer
url: mcp/fourzerotwo-si-mcp.yml
- type: Hosts
url: hosts/fourzerotwo-si-hosts.yml
- type: Vendors
url: vendors/fourzerotwo-si-vendors.yml
- type: SignUp
url: https://fourzerotwo.si/apis/companies-house/registered-office
- type: Newsroom
url: https://fourzerotwo.si/apis/uk-parliament-bills/news
- type: DomainSecurity
url: security/fourzerotwo-si-domain-security.yml
- type: Website
url: https://fourzerotwo.si/
- type: Documentation
url: https://fourzerotwo.si/llms.txt
- type: APIReference
url: https://fourzerotwo.si/openapi.json
- type: TermsOfService
url: https://fourzerotwo.si
- type: GitHubOrganization
url: https://fourzerotwo.si/
apis:
- name: fourzerotwo data API gateway
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
description: 'Pay-per-call data APIs for AI agents: 547 endpoints across 66 APIs covering UK company, property, legal and
public-sector data, economics, research, web and domain tools. Every endpoint is a plain HTTPS GET that may return HTTP
402 with x402 payment requirements (USDC) and is served via a single MCP server. Most calls are free within a daily allowance;
paid calls are billed per request.'
tags:
- Data
- API
- AI
- Payments
- MCP
aid: fourzerotwo-si:fourzerotwo-data-api-gateway
- aid: fourzerotwo-si:fourzerotwo-si-airports-api
name: fourzerotwo-si Airports API
description: 'Airports Worldwide: Every airport, airfield and heliport worldwide: ICAO/IATA codes, location, elevation,
runways, radio frequencies and nearby navaids — look up by code, search by name or town, or find the nearest.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- airports
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-airports-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-arxiv-api
name: fourzerotwo-si Arxiv API
description: 'arXiv Papers: Search arXiv preprints and get clean metadata and abstracts, plus the newest papers in AI, ML,
NLP, physics, finance and more.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- arxiv
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-arxiv-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-bank-of-england-api
name: fourzerotwo-si Bank Of England API
description: 'Bank of England Rates: Bank Rate, SONIA, sterling exchange rates, gilt yields and average UK mortgage and
loan rates.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- bank-of-england
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-bank-of-england-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-bathing-water-api
name: fourzerotwo-si Bathing Water API
description: 'Bathing Water Quality: Every designated bathing water in England — beaches, lakes and river swimming sites
— with its latest classification (excellent to poor), today''s pollution-risk forecast and the date of the latest sample.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- bathing-water
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-bathing-water-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-calculators-api
name: fourzerotwo-si Calculators API
description: 'Calculators: Currency conversion at ECB reference rates, UK business-day maths with official bank holidays,
and postcode-to-postcode distance.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- calculators
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-calculators-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-clinical-trials-api
name: fourzerotwo-si Clinical Trials API
description: 'Clinical Trials (ClinicalTrials.gov): Search 500,000+ registered clinical studies by condition, drug, sponsor,
place, status and phase; full study records and recruitment counts.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- clinical-trials
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-clinical-trials-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-companies-house-api
name: fourzerotwo-si Companies House API
description: 'UK Companies House: Every UK company: search, profile, status, registered office, filings, charges and insolvency.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- companies-house
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-companies-house-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-crossref-api
name: fourzerotwo-si Crossref API
description: 'Crossref DOI Metadata: Resolve DOIs to bibliographic metadata and search scholarly works, journals and funders.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- crossref
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-crossref-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-domains-api
name: fourzerotwo-si Domains API
description: 'Domains & DNS: Is a domain available, who registered it and when, its DNS records, and how well its email
is authenticated (SPF, DMARC, MX).'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- domains
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-domains-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-earthquakes-api
name: fourzerotwo-si Earthquakes API
description: 'Earthquakes (USGS): Worldwide earthquakes in near real time: recent feeds, regional search and counts.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- earthquakes
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-earthquakes-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-ecb-api
name: fourzerotwo-si Ecb API
description: 'ECB Rates: Euro foreign exchange reference rates, ECB policy rates, €STR and euro area inflation.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- ecb
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-ecb-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-eu-tenders-api
name: fourzerotwo-si Eu Tenders API
description: 'EU Public Tenders (TED): Every EU public procurement notice from TED: search by keyword, buyer country, CPV
code and date; competitions and awards with winners.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- eu-tenders
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-eu-tenders-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-eurostat-api
name: fourzerotwo-si Eurostat API
description: 'Eurostat: Official EU statistics: GDP, inflation, unemployment, population, house prices and any Eurostat
dataset.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- eurostat
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-eurostat-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-federal-register-api
name: fourzerotwo-si Federal Register API
description: 'US Federal Register: US federal rules, proposed rules, notices and presidential documents: search and detail.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- federal-register
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-federal-register-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-gb-electricity-api
name: fourzerotwo-si Gb Electricity API
description: 'GB Electricity Grid: Live and forecast Great Britain electricity data: generation mix, demand, wind, prices,
interconnectors, margins, frequency and plant outages.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- gb-electricity
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-gb-electricity-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-gleif-api
name: fourzerotwo-si Gleif API
description: 'Global LEI Register: Legal Entity Identifiers worldwide: lookup, name search, corporate parents and children,
ISIN and BIC mapping.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- gleif
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-gleif-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-global-weather-api
name: fourzerotwo-si Global Weather API
description: 'Global Weather (MET Norway): Worldwide weather forecasts, sunrise, sunset and moon phase, and ocean forecasts
for any point.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- global-weather
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-global-weather-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-holidays-api
name: fourzerotwo-si Holidays API
description: 'World Public Holidays: Public holidays for ~40 countries and their regions, is-it-a-holiday checks and business-day
maths.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- holidays
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-holidays-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-imei-api
name: fourzerotwo-si Imei API
description: 'IMEI & TAC decoder: Validate an IMEI and decode it to brand, model and device type from our own TAC database.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- imei
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-imei-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-ip-geolocation-api
name: fourzerotwo-si Ip Geolocation API
description: 'IP Geolocation & ASN: IP address to country, continent, network owner (ASN) and a hosting/cloud flag, for
IPv4 and IPv6.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- ip-geolocation
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-ip-geolocation-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-london-transport-api
name: fourzerotwo-si London Transport API
description: 'London Transport: Live Tube, bus, rail and road status, arrivals, journey planning and bike docks across London.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- london-transport
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-london-transport-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-nhs-organisations-api
name: fourzerotwo-si Nhs Organisations API
description: 'NHS Organisations (ODS): Every NHS organisation and site: GP practices, pharmacies, trusts, ICBs, dental and
optical practices, with codes, roles, addresses and relationships.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- nhs-organisations
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-nhs-organisations-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-openfda-api
name: fourzerotwo-si Openfda API
description: 'openFDA: US drug labels, adverse events and recalls, medical device events, recalls and clearances, and food
recalls.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- openfda
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-openfda-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-product-recalls-api
name: fourzerotwo-si Product Recalls API
description: 'Product Recalls & Safety Alerts: UK and US product recalls, food allergy alerts, medicine and medical-device
alerts, and UK air, marine and rail accident reports.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- product-recalls
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-product-recalls-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-pubmed-api
name: fourzerotwo-si Pubmed API
description: 'PubMed: Search 37M+ biomedical citations and fetch article summaries from PubMed.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- pubmed
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-pubmed-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-ror-api
name: fourzerotwo-si Ror API
description: 'Research Organisations (ROR): Identify universities, research institutes, funders and hospitals: search, match
messy affiliation strings, look up by GRID/ISNI/Wikidata/Funder ID.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- ror
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-ror-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-rxnorm-api
name: fourzerotwo-si Rxnorm API
description: 'RxNorm Drug Names: Normalise US drug names: name or misspelling to RxCUI, clinical and branded drugs, ingredients
and brands, NDC lookups and concept properties.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- rxnorm
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-rxnorm-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-sanctions-api
name: fourzerotwo-si Sanctions API
description: 'Sanctions Screening: Fuzzy-screen a person, company or vessel against the US OFAC SDN, UK, EU and UN sanctions
lists in one call.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- sanctions
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-sanctions-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-scholarly-api
name: fourzerotwo-si Scholarly API
description: 'Scholarly Works (OpenAlex): Search 250M+ papers, authors, institutions, journals and topics with citation
counts.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- scholarly
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-scholarly-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-schools-api
name: fourzerotwo-si Schools API
description: 'Schools in England: Every school and education establishment in England: type, phase, ages, pupils, free school
meals, trust, address and location — search by name, postcode or local authority, or find schools near a postcode.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- schools
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-schools-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-sec-edgar-api
name: fourzerotwo-si Sec Edgar API
description: 'SEC EDGAR: US public company filings and XBRL financials: submissions, company facts, single concepts and
cross-company frames.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- sec-edgar
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-sec-edgar-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-sec-tickers-api
name: fourzerotwo-si Sec Tickers API
description: 'SEC Ticker Map: Every US-listed ticker mapped to its company name and SEC CIK.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- sec-tickers
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-sec-tickers-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-seo-api
name: fourzerotwo-si Seo API
description: 'SEO Tools: On-page SEO audit of any URL, link extraction, robots.txt rules for any crawler, and keyword intent.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- seo
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-seo-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-tides-api
name: fourzerotwo-si Tides API
description: 'US Tides & Water Levels: NOAA tide stations across US coasts and the Great Lakes: high and low tide predictions,
observed water levels and current station weather (water and air temperature, wind, pressure).'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- tides
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-tides-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-time-api
name: fourzerotwo-si Time API
description: 'Time Zones & Business Days: DST-aware time-zone conversion that flags ambiguous and skipped local times, zone
facts with the next clock change, and business days for 40+ countries.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- time
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-time-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-bank-holidays-api
name: fourzerotwo-si Uk Bank Holidays API
description: 'UK Bank Holidays: Official bank holidays for England & Wales, Scotland and Northern Ireland.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-bank-holidays
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-bank-holidays-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-business-api
name: fourzerotwo-si Uk Business API
description: 'UK Company Due Diligence: One call: a UK company''s register status, overdue filings, late accounts, recent
name and office changes, Gazette insolvency notices, LEI and a sanctions name screen, with risk flags.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-business
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-business-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-disputes-api
name: fourzerotwo-si Uk Disputes API
description: 'UK Consumer Disputes: Parking appeals, energy back-billing, broadband/mobile and water disputes with cited
law, deadlines and escalation routes, plus a verified complaints-contact directory.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-disputes
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-disputes-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-economy-api
name: fourzerotwo-si Uk Economy API
description: 'UK Economic Indicators: Latest ONS headline figures: inflation, jobs, wages, GDP, retail sales, public debt
and trade.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-economy
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-economy-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-flood-api
name: fourzerotwo-si Uk Flood API
description: 'UK Flood & River Levels: Live flood warnings, flood areas, river, sea and rainfall gauges across England from
the Environment Agency.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-flood
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-flood-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-food-hygiene-api
name: fourzerotwo-si Uk Food Hygiene API
description: 'UK Food Hygiene Ratings: Food hygiene ratings for restaurants, takeaways, shops and caterers across the UK.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-food-hygiene
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-food-hygiene-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-gazette-api
name: fourzerotwo-si Uk Gazette API
description: 'UK Gazette Estates: Search UK deceased-estates (probate) notices from The Gazette and pull structured notice
detail.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-gazette
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-gazette-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-geography-api
name: fourzerotwo-si Uk Geography API
description: 'UK Geography Codes: How UK areas nest: LSOA, MSOA and parish to ward, local authority, county, region and
country, wards to Westminster constituencies, and name search for ONS codes.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-geography
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-geography-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-legislation-api
name: fourzerotwo-si Uk Legislation API
description: 'UK Legislation: Search UK Acts and statutory instruments, read the current (or point-in-time) text of any
section, and track amendments.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-legislation
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-legislation-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-parliament-bills-api
name: fourzerotwo-si Uk Parliament Bills API
description: 'UK Parliament Bills: Bills before the UK Parliament: search, status, stages, sponsors and publications.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-parliament-bills
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-parliament-bills-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-parliament-members-api
name: fourzerotwo-si Uk Parliament Members API
description: 'UK Parliament Members: MPs and peers: search, biographies, contact details, voting records, constituencies
and government posts.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-parliament-members
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-parliament-members-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-parliament-votes-api
name: fourzerotwo-si Uk Parliament Votes API
description: 'UK Commons Votes: House of Commons divisions: search votes and see how every MP voted.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-parliament-votes
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-parliament-votes-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-planning-api
name: fourzerotwo-si Uk Planning API
description: 'UK Planning Constraints: Is a site in a conservation area, listed, green belt, flood zone, SSSI or under an
Article 4 direction? Point-in-polygon checks against 30 planning, heritage and environmental datasets for England, by
postcode or lat/lng.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-planning
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-planning-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-police-api
name: fourzerotwo-si Uk Police API
description: 'UK Police Data: Street-level crime, outcomes, stop and search, forces and neighbourhood policing for England,
Wales and Northern Ireland.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-police
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-police-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-postcodes-api
name: fourzerotwo-si Uk Postcodes API
description: 'UK Postcodes: Geocode and describe any UK postcode: coordinates, district, ward, constituency, region.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-postcodes
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-postcodes-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-property-api
name: fourzerotwo-si Uk Property API
description: 'UK Property & Area: Sold prices, price summaries, house-price-index revaluations, planning designations, council
lookup and a one-call area report for any UK postcode.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-property
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-property-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-rivers-api
name: fourzerotwo-si Uk Rivers API
description: 'UK River Levels, Flow & Rainfall: Environment Agency hydrology gauges across England: river levels and flows
(m³/s), rainfall totals and groundwater levels, with 15-minute readings. Find gauges near a postcode, then read the latest
or recent series.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-rivers
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-rivers-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-road-safety-api
name: fourzerotwo-si Uk Road Safety API
description: 'UK Road Collisions: Police-reported road collisions in Great Britain over the last five years: how many near
a postcode or point, by severity and year, plus breakdowns by road, speed limit, light and weather for any local authority.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-road-safety
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-road-safety-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-tenders-api
name: fourzerotwo-si Uk Tenders API
description: 'UK Public Tenders: UK public-sector tenders and contract awards from Contracts Finder and Find a Tender: search,
read a notice, see who won what.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-tenders
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-tenders-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-trade-stats-api
name: fourzerotwo-si Uk Trade Stats API
description: 'UK Trade Statistics: HMRC Overseas Trade Statistics: what the UK imports and exports of any product, from
and to which countries, by month or year.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-trade-stats
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-trade-stats-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-trade-tariff-api
name: fourzerotwo-si Uk Trade Tariff API
description: 'UK Trade Tariff: UK commodity codes, import duties and controls by country of origin, quotas, geographical
areas and HMRC monthly customs exchange rates.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-trade-tariff
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-trade-tariff-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-uk-vehicle-tools-api
name: fourzerotwo-si Uk Vehicle Tools API
description: 'UK Vehicle Tools: Date a UK number plate, work out MOT due dates, vehicle tax (VED) at April 2026 rates and
London ULEZ compliance.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- uk-vehicle-tools
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-uk-vehicle-tools-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-us-spending-api
name: fourzerotwo-si Us Spending API
description: 'US Federal Spending: US federal contracts, grants and loans from USAspending.gov: search awards by keyword,
agency or recipient, read an award, profile a recipient.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- us-spending
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-us-spending-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-us-treasury-api
name: fourzerotwo-si Us Treasury API
description: 'US Treasury Fiscal Data: US national debt to the penny, average interest rates on Treasury debt, Treasury
exchange rates and daily cash balance.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- us-treasury
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-us-treasury-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-us-vehicle-safety-api
name: fourzerotwo-si Us Vehicle Safety API
description: 'Vehicle Recalls & Safety (NHTSA): US safety recalls, owner complaints and NCAP crash-test ratings by make,
model and year.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- us-vehicle-safety
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-us-vehicle-safety-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-us-vehicles-api
name: fourzerotwo-si Us Vehicles API
description: 'Vehicle Decoder (NHTSA vPIC): Decode any VIN (worldwide 17-character) and look up makes, models, manufacturers
and WMI codes.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- us-vehicles
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-us-vehicles-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-us-weather-api
name: fourzerotwo-si Us Weather API
description: 'US Weather (NWS): US forecasts, hourly forecasts, active weather alerts and station observations from the
National Weather Service.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- us-weather
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-us-weather-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-validators-api
name: fourzerotwo-si Validators API
description: 'Validators: Check-digit and format validation for IMEIs, VINs, IBANs, UK phone numbers, UK postcodes and email
addresses.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- validators
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-validators-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-vat-api
name: fourzerotwo-si Vat API
description: 'VAT Rates & Checks: UK and EU27 VAT rates, net↔gross VAT maths, and VAT-number format and check-digit validation.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- vat
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-vat-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-web-api
name: fourzerotwo-si Web API
description: 'Web Reader: Read any public web page as clean markdown, get its link-preview metadata, or check a URL for
warning signs before opening it.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- web
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-web-api-openapi.yml
- aid: fourzerotwo-si:fourzerotwo-si-world-bank-api
name: fourzerotwo-si World Bank API
description: 'World Bank Indicators: GDP, population, inflation, debt, trade, development and climate indicators for every
country.'
humanURL: https://fourzerotwo.si
baseURL: https://fourzerotwo.si
tags:
- world-bank
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-world-bank-api-openapi.yml
properties:
- type: OpenAPI
url: openapi/fourzerotwo-si-openapi.json
x-enrichment:
date: '2026-10-29'
status: enriched
artifacts_added: 29
pass: modular-v1
engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss
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