What are the best Data Access APIs?

The best Data Access APIs in 2025 have clear docs, reliable uptime, modern SDKs, and fair pricing. We curated top options to help you ship faster.

Are there free Data Access APIs?

Yes. Many Data Access APIs offer free tiers or trials suitable for hobby projects and prototypes.

How do I choose a Data Access API?

Evaluate documentation, auth method, SDKs, rate limits, pricing, and support. Start with a free tier, then upgrade as usage grows.

Public APIs

Best Data Access APIs (2025)

We curated the best Data Access APIs for developers. Browse 46+ options and compare features, docs, and pricing.

View all Data Access APIs →

Australian Open Government

Data Access

Australian Government Open Data

Barchart OnDemand

Finance

Stock, Futures, and Forex Market Data

Barcode APIs

Data Access

Generate and recognize 1D and 2D barcodes.

BestTime API

Data Access

Find the best time to visit a place. BestTime.app is a web (API) service that forecasts how busy a public business (e.g. restaurant, gym, etc) will be at any given hour of the week. Forecasts are based on average visits over the past weeks.

Colorado Data Engine

Data Access

Colorado Data Engine is an open source hub that unlocks neighbourhood scale public data in a standardised, geolocated format.

Colorado Information Marketplace

Data Access

Colorado State Government Open Data

Data USA

Data Access

The Data USA API allows users to explore the entire database using carefully constructed query strings, returning data as JSON results.

Dataflow Kit

Data Access

DFK’s API enables you to programatically manage and run your web data extraction and SERPs collection Tasks. You can easily retrieve extracted data afterwards.

Dictum API

Data Access

API to get access to the collection of the most inspiring expressions of mankind

Diff bot

Data Access

Automatic data extraction from articles, products, discussions and more. Diffbot uses advanced AI technology to retrieve clean, structured data without need for manual rules or site-specific training.

Domainsdb.info

Data Access

Registered domains search checks the lists of registered domains for names containing particular words/phrases/numbers or symbols.

Dronestream

Data Access

Real-time and historical data about every reported covert United States drone strike

How we pick the best Data Access APIs

We consider documentation clarity, SDK availability, authentication type, community adoption, and overall developer experience. We recommend starting with free tiers where available.