Free tier: Data sources and reference APIs

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Free tier: Data sources and reference APIs

APIs that return data rather than doing something to yours: location, reference tables, news, markets, weather and identity checks. Note how many near-identical IP geolocation services there are — the redundancy is a fair picture of that market.

Part of the Free Tier Services Directory.

Location and network data

  • BigDataCloud — IP geolocation with generous free limits, from 10,000 to unlimited calls a month depending on the endpoint.
  • DB-IP — IP geolocation with a lite database released under CC-BY 4.0. 1,000 requests per IP per day.
  • FreeIPAPI — IP geolocation, free for commercial and non-commercial use.
  • Geolocated.io — IP geolocation with servers on several continents. 2,000 requests a month.
  • IP Geolocation API by ipwho.org — IP geolocation, 2,000 requests a day.
  • IP Geolocation API — IP geolocation from Abstract. 1,000 requests free.
  • IP Geolocation — IP geolocation with a permanent free plan of 1,000 requests a day.
  • ip-api — IP geolocation with no key required, free for non-commercial use at 45 requests a minute.
  • IP.City — IP geolocation, 100 requests a day.
  • IP2Location.io — IP geolocation returning city, coordinates, ISP and ASN. Freemium.
  • Proxmint GeoIP — IP to country, city and ASN as JSON, built on MaxMind GeoLite2. No key, CORS open.
  • ip2geo.dev — IP geolocation returning city, country and time zone.
  • ipaddress.sh — Returns your public IP address in a range of formats.
  • ipapi.is — IP address API with hosting and proxy detection.
  • ipapi — IP geolocation built on AWS.
  • ipbase.com — IP geolocation with a permanent free plan of 150 requests a month.
  • IPinfo — IP address data with detail on ownership and network. Free up to 50,000 requests a month.
  • IPLocate — IP geolocation with proxy, VPN and hosting detection. 1,000 requests a day.
  • IPTrace — Deliberately simple IP geolocation API.
  • JSON IP — Returns the public IP address of whoever calls it. No registration.
  • Multi-Exit IP Address Checker — Checks your exit IP address across several nodes.
  • ProxySentry — Detects residential proxies and VPNs behind an IP address.
  • The IP API — IP geolocation, 1,000 requests a day.
  • What Is My IP — Checks your public IPv4 and IPv6 address and the details of the request.

Reference and public data

  • Abstract API — API suite covering IP geolocation, phone number validation and email validation.
  • APIVerve — Instant access to more than 120 small APIs under one key.
  • Calendarific — Public holiday data for more than 200 countries.
  • Canopy — Amazon product, search and category data over GraphQL.
  • CarAPI.dev — Automotive data including VIN decoding, stolen vehicle checks and valuations.
  • CatchDoms — Aggregates expired and dropping domain listings from 16 marketplaces, with SEO enrichment.
  • Country-State-City Microservice API — Countries, regions, states and cities as an API and a microservice.
  • Disease.sh — Covid-19 data for building public health dashboards and applications.
  • HS Ping — Harmonized System and tariff code lookup across several countries.
  • NASdisks Drive Data API — Specifications for NAS hard drives and SSDs, including CMR and SMR classification. No key, CORS enabled.
  • wolfram.com — Knowledge-based computation in the cloud, exposing Wolfram's curated data and algorithms.
  • Zipcodebase — Worldwide postal code data. 5,000 requests a month.
  • Zip-Codes — US and Canadian postal codes with address validation, radius search and census data.
  • Zipcodestack — Postal code lookup and validation. 10,000 requests a month.

News, search and social data

  • Brave Search API — Independent web, news, image and video search API, usable as context for retrieval-augmented generation.
  • KillBait API — Submits a URL for content evaluation and flags likely clickbait — a rare example of an API aimed at content quality.
  • News API — Searches news on the web and returns JSON. 100 queries a day free for developers.
  • XFlux — Read API for X/Twitter profiles, searches and timelines, plus account monitoring.

Money, markets and tax

  • AlphaAI — Financial news API with per-ticker impact analysis, also available over MCP.
  • CurrencyScoop — Real-time currency data for financial applications. 5,000 calls a month.
  • Earnings Feed — SEC filings, insider trades and institutional holdings in real time.
  • Financial Data — Stock market and financial data. 300 requests a day.
  • finlight — Real-time financial news with ticker and ISIN resolution and sentiment tagging.
  • Market Data API — Real-time and historical data for stocks, options, mutual funds and indices.
  • UniRateAPI — Exchange rates for more than 590 currencies and cryptocurrencies. Unlimited calls on the free plan.
  • vatcheckapi.com — VAT number validation. 150 checks a month.
  • vatnode — EU VAT number validation against VIES with national registry fallback.

Weather

Verification and fraud checks

  • FraudLabs Pro — Screens an order for credit card fraud through a REST API.
  • LayerCall — Fraud and trust scoring for an IP, email, phone, domain or device in one call.
  • numlookupapi.com — Phone number validation. 100 requests a month.

Currency

Compiled September 2026. Free tiers change frequently and nothing here has been independently verified — check the provider before relying on any allowance described above. Entries cover services with a standing free tier, not free trials.

See also

Training data, Embeddings, Machine learning, and the other sections of the Free Tier Services Directory.

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