Where suppliers hide data behind rigid formats or slow, manual extracts, API Seer plugs directly into the source and delivers clean, reliable, usable intelligence
Across the digital ecosystem, thousands of APIs expose valuable operational and commercial data. Some are public, while others sit behind partner agreements, subscriptions, or controlled access models. In many cases, the information your business needs exists — but lives behind technical barriers. API Seer removes those barriers
While some suppliers offer large batch exports, most only expose basic request/response endpoints, returning a single record per call. This creates challenges when you need targeted data, high-volume extraction, or cross-API integration for analytical purposes. API Seer consolidates, structures, and enriches data from diverse APIs to help you surface actionable insights — including pricing shifts, market trends, and competitive opportunities
📈 Stocks & Shares / Market Data APIs
🚏 OOH Media APIs
🚗 Motoring (DVSA / Vehicle Data)
✈️ Travel & Aviation APIs
🛡️ Insurance APIs
🌦 Weather APIs
🏆 Sports Data APIs
⚡ Utilities & Energy Industry Data APIs / Data Services
🏛️ Government, Companies, Health & Public‑Sector Data APIs
📱 Social Media / Content APIs
🎵 Music / Audio APIs
🏷️ Auction / Marketplace APIs
📊 Demographics & Business Intelligence APIs
🏠 Address Validation / Cleansing APIs
💳 Payments / Fintech APIs
₿ Cryptocurrency / Blockchain APIs
🗺️ Geospatial / GIS APIs
📡 IoT / Devices / Sensors APIs
📰 News / Media Content APIs
🎓 Education / Academic APIs
🤖 AI / NLP / ML APIs
API Provider
Business Description
Chargeable
Bloomberg B-PIPE / Desktop API
Real-time & historical prices, corporate actions, reference data, fundamentals, ESG, derivatives, economic indicators, news sentiment.
Yes
Refinitiv / LSEG APIs
Global real-time data, tick history, pricing, fundamentals, economic data, ESG, filings, forecasts.
Yes
FactSet API
Analyst estimates, fundamentals, ownership, pricing, corporate events, alternative datasets.
Yes
Morningstar API
Funds & ETFs, long-term fundamentals, sustainability ratings, portfolio holdings.
Yes
IEX Cloud
US equities: prices, fundamentals, earnings, news, corporate actions.
Yes + Free
Alpha Vantage
Intraday/daily stock prices, FX, crypto, technical indicators.
Yes + Free
Polygon.io
Real-time/historical equities, options, crypto, FX, corporate actions, market aggregates.
Yes
Finnhub.io
Stocks, forex, crypto, insider trades, transcripts, ESG, macroeconomic data.
Yes + Free
Twelve Data
Equities, indices, crypto, FX, ETFs, technical indicators.
Yes + Free
Yahoo Finance (Unofficial)
Quotes, fundamentals, charts, analyst ratings through community SDKs.
No (Unofficial)
API Provider
Business Description
Chargeable
VIOOH API (JCDecaux SSP)
DOOH availability, hourly impressions, pricing, targeting metadata, bookings, proof-of-play.
Yes (media spend)
Broadsign Reach API
DOOH inventory supply, bid requests, availability, campaign delivery, impression multipliers.
Yes (media spend)
Vistar Media API
Audience segments, inventory, real-time bidding, delivery logs, impression data.
Yes (media spend)
Place Exchange API
Normalised DOOH inventory, bidstream, audience estimates, performance data.
Yes (media spend)
Hivestack API
Global programmatic DOOH supply & demand, targeting, audience, delivery reporting.
Yes (media spend)
Ocean Outdoor API
UK DOOH availability, impressions, loops/slots, proof-of-play.
Partner-only
Global Outdoor / DAX
Availability, campaign scheduling, audience metrics.
Yes
Geopath API
US OOH audience measurement, inventory IDs, audited impressions, demographic breakdown.
Yes (membership)
Quividi API
Anonymous audience analytics, dwell time, demographics, engagement.
Yes
AdMobilize API
Real-time audience analytics, footfall, vehicle counts, sentiment scoring.
Yes
API Provider
Business Description
Chargeable
DVLA Vehicle Enquiry Service (UK)
MOT status, tax status, vehicle specifications (make, model, colour, engine size).
No
DVSA MOT History API (UK)
Detailed MOT results, failure reasons, advisories, test dates, test centres (limited fields).
No
National Highway Traffic Safety Administration (US NHTSA)
Vehicle recalls, safety data, defect investigations, manufacturer data.
No
CarVertical / VIN APIs
VIN lookup, vehicle history, mileage, theft checks, accident records.
Yes
API Provider
Business Description
Chargeable
Amadeus Travel APIs
Flight search, fare pricing, booking, hotels, rail, airport data, travel intelligence.
Yes + Free
Sabre APIs
Flight availability, pricing, ticketing, PNR management, hotel and car rental inventory.
Yes
Travelport APIs
Global flight, hotel, and travel booking APIs across Galileo, Apollo, Worldspan.
Yes
AviationStack API
Real-time flight status, schedules, airlines, airports, aircraft info.
Yes + Free
FlightAware AeroAPI
Live flight tracking, positions, tail numbers, operational data.
Yes
OpenSky Network API
ADS-B flight positions, transponder data, historical tracks.
No
API Provider
Business Description
Chargeable
Guidewire Cloud APIs
Policies, claims, billing, quoting, underwriting workflows.
Yes
Duck Creek APIs
Policy admin, claims, billing, customer data.
Yes
ACORD Standards APIs
Industry-standard insurance schemas and messaging APIs.
Yes + Free
LexisNexis Risk Solutions
Identity verification, claims history (CLUE), risk scoring, fraud data.
Yes
Experian Insurance APIs
Identity, credit-based risk data, customer validation.
Yes
API Provider
Business Description
Chargeable
OpenWeatherMap
Current weather, forecasts, historical climate data, pollution/air quality.
Yes + Free
WeatherAPI.com
Weather, forecasts, astronomy data, time zone, marine weather.
Yes + Free
AccuWeather API
High-grade forecasts, alerts, radar, lifestyle impact indexes.
Yes
NOAA / NWS (US)
Official US meteorological data, alerts, forecasts, historical readings.
No
Meteomatics API
High-resolution weather models, aviation-grade forecasting, energy sector data.
Yes (Enterprise)
API Provider
Business Description
Chargeable
Sportradar
Current weather, forecasts, historical climate data, pollution/air quality.
Yes
Opta / Stats Perform
Weather, forecasts, astronomy data, time zone, marine weather.
Yes
The Sports DB
High-grade forecasts, alerts, radar, lifestyle impact indexes.
Yes + Free
ESPN APIs (Unofficial)
Official US meteorological data, alerts, forecasts, historical readings.
No
Football-Data.org
High-resolution weather models, aviation-grade forecasting, energy sector data.
Yes + Free
NBA, NFL, MLB official APIs
High-resolution weather models, aviation-grade forecasting, energy sector data.
Yes + Free
API Provider
Business Description
Chargeable
Xoserve – Gas Enquiry Service (GES)
Supply point data for gas: meter‑point details, supply‑point enquiry, meter‑point enquiry, switching support data for shippers, suppliers, network operators.
Yes (authorised only)
Xoserve – Contact Management Service (CMS)
Workflow & contact management interface for utilities sector participants; used to manage requests and process contact events across industry roles.
No (part of DSC contract)
ECOES (Electricity Central Online Enquiry Service) / EES API
Electricity supply‑point and meter data: MPAN lookup, meter status, supplier, historical and current supply‑point details — essential for contract switching, onboarding, and accurate NMI data.
Yes (subscription license, industry-role based)
ElectraLink – QuoteRight (and QuoteRight Essentials)
Meter‑level data, Estimated Annual Consumption (EAC) / Actual Consumption (AC), supplier info, meter identifiers — used for accurate customer quoting, onboarding and energy‑tariff switching tools.
Yes (commercial)
ElectraLink – Real‑time Smart Energy Data & DTS feed
Historical and real‑time electricity consumption data (half‑hourly / smart meter data), comprehensive market‑wide datasets for analytics, forecasting, demand management, and compliance reporting.
Yes (commercial/regulated market)
Third‑party enrichment / aggregator services (e.g. utilities‑register providers such as via Loqate)
Unified gas + electricity meter and address matching, “Retail Energy Location” data, enables dual‑fuel switch services, address validation + meter‑point enrichment for onboarding, compliance, and switching workflows.
Yes (subscription)
Open Data / Distribution Network Open‑Data Portals (e.g. distribution‑network datasets via DNOs)
Grid topology, network‑boundary data, GIS‑shaped data, network‑level metadata useful for planning, network‑analytics, infrastructure mapping.
Often no / free or low cost (some under open licence)
API Provider
Business Description
Chargeable
UK Government Digital Service (GOV.UK / data.gov.uk)
Broad cross-departmental data — government data sets (transport, environment, education, public spending, statistics, etc.). Via the published open datasets catalogue.
No (open data)
Companies House API
Official UK company registry — company details, registration status, officers, persons of significant control (PSC), filing history, registered addresses, charges, etc.
No (free access to public data)
Organisation Data Service (ODS) / ORD API
Directory of health & social care organisations (trusts, GP practices, NHS bodies) including metadata: ODS codes, names, addresses, contact info, organisational relationships, historical succession, status. Useful for linking provider-level data.
No (for NHS / public-sector) / restricted for private
Public Spending & Procurement Data (via open‑data portals / open‑spend registries)
Data on public contracts, procurement awards, government spending, suppliers, contract amounts — useful for market analysis, vendor tracking, public-sector investment analysis.
Mostly free / open
API Provider
Business Description
Chargeable
Meta / Facebook Graph API
User content (posts, comments), page insights, groups, events, ad campaigns, audience targeting metrics. Requires app approval for certain endpoints.
Yes + Free + commercial access for Ads
Instagram Graph API
Business account media, insights, comments, followers analytics, ad performance.
Yes + Free + Ads
WhatsApp Business Cloud API
Business messaging: send/receive messages, templates, media, notifications.
Yes (usage based for Ads)
X (formerly Twitter) API v2
Tweets, user profiles, followers, likes, retweets, trending topics, historical search (subject to tier).
Yes + Free
YouTube Data API
Channels, videos, playlists, comments, likes, search, analytics insights for content creators.
Yes + Free + Paid for high-quota
LinkedIn API
Company pages, posts, jobs, analytics, user profile data (limited access for privacy).
Yes (Commercial / Enterprise)
Reddit API
Subreddits, posts, comments, user karma, votes, trends, search, historical content.
No (Free with rate limits)
TikTok for Developers API
Videos, trends, user insights, analytics, advertising performance, hashtag performance.
Yes + Free, Paid for Ads
Pinterest API
Boards, Pins, user profiles, analytics, ad campaign insights.
Yes + Free tier for developers + Paid for Ads
Snapchat Marketing API
Campaign creation, targeting, reporting, ad analytics.
Yes
Spotify Web API
Playlists, tracks, albums, artists, user libraries, streaming analytics (for apps that integrate).
Yes for Commercial + Free
API Provider
Business Description
Chargeable
Spotify Web API
Access to tracks, albums, playlists, artists, user libraries, streaming analytics (for apps integrating with Spotify).
Free + Commercial
Apple Music / MusicKit API
Song catalog, albums, playlists, charts, and user library integration (with user consent).
Yes + Apple developer program
Deezer API
Tracks, playlists, albums, user data (with consent), charts, and search.
Yes + Free
SoundCloud API
Track metadata, playlists, users, comments, streaming stats.
Yes + Free
Last.fm API
Scrobble data, artist info, track metadata, charts, user listening history.
Free, Limited
Bandcamp API (Unofficial / Partner)
Album, track, artist metadata; sales stats; fan engagement info.
Yes + Free + Partner access
API Provider
Business Description
Chargeable
eBay API
Listings, product details, seller info, bidding status, completed sales, inventory, order management.
Yes + Free (Paid for large volume / commercial)
Etsy API
Shop and listing data, product metadata, inventory, orders, transactions, sales analytics.
Yes + Free (Paid for high usage)
Amazon Selling Partner API (SP-API)
Product listings, orders, inventory, pricing, reports, and fulfilment data.
Yes (seller account + subscription)
Sotheby’s / Christie’s APIs (Auction Houses)
Catalog listings, auction events, lot metadata, sale results, artist info (some via licensed data feeds).
Partner / Commercial
Alibaba / Taobao API
Product catalog, pricing, seller info, order management, inventory.
Yes, Commercial
OpenSea API
NFT metadata, collections, ownership, transactions, sales history, tokens
Yes + Free for public data
API Provider
Business Description
Chargeable
UK Census / ONS APIs
Official population statistics, household composition, socio-economic data, employment, health, education, and geographic breakdowns. Useful for market analysis, planning, and research. (ons.gov.uk)
No
Experian Data APIs (UK / Global)
Consumer credit risk, demographic profiling, segmentation, business credit scores, address verification, identity validation, fraud prevention. (experian.co.uk)
Yes
Dun & Bradstreet (D&B) API
Global company profiles, D-U-N-S numbers, corporate hierarchy, financials, risk scores, payment history, trade credit info, industry classification. Useful for supplier onboarding, B2B verification, risk
Yes
API Provider
Business Description
Chargeable
Loqate (GBG / Address Verification)
Cleanses and standardises addresses globally; verifies postcode, street, city, country; provides geocoding (lat/long), delivery validation, and supports multiple address formats.
Yes
Experian Address Validation API
Validates UK and international addresses; standardises formatting, postcode verification, geocoding, and PAF/DPF compliance; supports batch and single-query mode.
Yes
Postcode.io
UK address lookup and cleansing using ONS, Ordnance Survey, and Royal Mail PAF data; supports postcode validation, geocoding, and boundary lookup.
No
Google Places / Geocoding API
Cleanses and standardises addresses; provides geocoding, autocomplete, place IDs, and suggested corrections; widely used in apps and forms.
Yes above quota + Free
Melissa Data API
International address validation, postal verification, geocoding, email verification, phone validation; supports batch processing and real-time lookup.
Yes
SmartyStreets API
US and international address validation; cleanses, standardises, provides geocoding and delivery-point verification; supports bulk or single queries.
Yes
Loqate Global Address API
International address verification and cleansing; standardises address formats, geocodes, supports postal validation, and integrates with CRM systems.
Yes
UPS Address Validation API
Cleanses addresses for accurate parcel delivery; validates street-level delivery addresses, postcodes, and geocodes; integrates with shipping workflows.
Yes
Pitney Bowes Address Validation API
Cleanses and validates global addresses, standardises formatting, verifies postal codes, and geocodes addresses for mail, shipping, or location
Yes
API Provider
Business Description
Chargeable
Stripe API
Payment processing, subscription billing, invoicing, fraud detection, reconciliation, financial reporting.
Yes
PayPal API
Validates UK and international addresses; standardises formatting, postcode verification, geocoding, and PAF/DPF compliance; supports batch and single-query mode.
Yes + Free, Transaction fees
Visa Developer / VisaNet API
Payments, refunds, subscriptions, transaction history, merchant account data.
Yes
Mastercard APIs
Card data, payments, transaction validation, fraud detection, merchant insights.
Yes
Open Banking / PSD2 APIs (UK/EU)
Bank account balances, transactions, payments initiation, consented customer data sharing.
Yes + Free
API Provider
Business Description
Chargeable
CoinGecko API
Payment processing, subscription billing, invoicing, fraud detection, reconciliation, financial reporting.
Yes + Free
CoinMarketCap API
Validates UK and international addresses; standardises formatting, postcode verification, geocoding, and PAF/DPF compliance; supports batch and single-query mode.
Yes + Free
Coinbase API
Payments, refunds, subscriptions, transaction history, merchant account data.
Yes + Free
Binance API
Card data, payments, transaction validation, fraud detection, merchant insights.
Yes + Free
Chainalysis API
Bank account balances, transactions, payments initiation, consented customer data sharing.
Yes
API Provider
Business Description
Chargeable
Google Maps / Geocoding API
Geocoding, reverse geocoding, directions, maps, Places API, address validation.
Yes + Free
Ordnance Survey APIs (UK)
UK mapping, topography, addresses, boundaries, land use, grid references.
Yes + Free
Mapbox API
Mapping, geocoding, routing, data visualisation, location analytics.
Yes + Free
OpenStreetMap API / Nominatim
OpenStreetMap API / Nominatim Open-source map data, geocoding, routing, POI data.
No
HERE Location APIs
Maps, geocoding, routing, traffic, fleet management, spatial analytics.
Yes
API Provider
Business Description
Chargeable
Particle Cloud API
Device management, telemetry, sensor readings, firmware updates, event triggers.
Yes
AWS IoT Core API
IoT device communication, telemetry, messaging, rules engine, analytics.
Yes
Google Cloud IoT API
IoT device registry, telemetry ingestion, data analytics, device management.
Yes
ThingSpeak API
Sensor data collection, time-series analysis, device monitoring, IoT experiments.
Yes + Free
Smart Meter / Energy APIs (UK)
Real-time meter readings, half-hourly consumption, device telemetry for energy management.
Yes (Industry participants)
API Provider
Business Description
Chargeable
NewsAPI.org
Aggregated headlines, articles, sources, categories, global news search.
Yes + Free
Reuters / Refinitiv News API
Professional news content, financial market news, events, company news.
Yes
GDELT API
Global event database: news media monitoring, trends, sentiments, geopolitics, events.
No
New York Times API
Articles, archives, search, reviews, multimedia content.
Yes + Free
BBC News API (Unofficial)
Access to BBC News headlines, topics, articles via RSS or community APIs.
No
API Provider
Business Description
Chargeable
HESA (Higher Education Statistics Agency) API
Data on UK higher education: student numbers, demographics, staff, research, finances.
No
UK Schools Performance Data / DfE API
School-level performance, exam results, Ofsted ratings, enrollment, location, demographics.
No
Ed-Fi API
K-12 educational data integration, student performance, assessments, attendance, enrollment.
Yes + Free
World Bank Education Data API
International education indicators, literacy, enrollment, expenditure, global comparisons.
No
API Provider
Business Description
Chargeable
OpenAI API
Text generation, code generation, embeddings, chatbots, summarization, classification.
Yes
Cohere API
Large language models, embeddings, text generation, classification, semantic search.
Yes
Hugging Face Inference API
Access to pretrained models for text, image, audio, and multimodal tasks.
Yes + Free
Google Vertex AI API
Training and deploying machine learning models, predictions, batch and online inference.
Yes
AWS AI / ML APIs
NLP, vision, recommendation, forecasting, personalized ML services.
Yes
IBM Watson APIs
NLP, speech-to-text, text-to-speech, language translation, document understanding, AI analytics.
Yes