What are the best Development APIs? (2026)

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Project to promote open source collaboration during December

Free and simple counting service. You can use it to track page hits and specific events

Take programmatic screenshots of web pages from any website

Enables users to manage their Vonage API Account by programmable means. More information is available here: <https://developer.nexmo.com/account/overview>.

APIs provided by Accountants General, Tripura.

Insurance policies issued by Acko General Insurance (https://www.acko.com) can be fetched by the citizens in their Digilocker accounts.

### The Internet of Things for Everyone The Adafruit IO HTTP API provides access to your Adafruit IO data from any programming language or hardware environment that can speak HTTP. The easiest way...

Aggregators API

Estimates the age from a first name

Here you can play & test & prototype all the endpoints using just your browser! Go ahead!

API provided by akeneo.com

Alipay's mini program platform — payments, credentials, map, Bluetooth, finance-focused components

This is the Anchore Engine API. Provides the primary external API for users of the service.

APIs provided by Antyodaya Saral Haryana, Haryana.

Web API for TL mobile and web app

Una API para obtener resultados de fútbol y estadísticas de la liga española.

Create beautiful product and API documentation with our developer friendly platform.

Multiples services and public APIs

[1] Liste des fonctionnalités : - envoi de SMS à un ou plusieurs destinataires, - lookup HLR, - récupération des récapitulatifs de campagne, - gestion des répertoires, - ajout en liste noire. - com...

World-class APIs in a single hub

DocSpring is a service that helps you fill out and sign PDF templates.

Extract device details from user-agent string

Chrome based screenshot API for developers

Transform API Descriptions from/to various formats

Microsoft Visual Studio App Center API

Build and ship applications that scale using certified APIs for every use case

The Archive API provides lists of NYT articles by month going back to 1851. You can use it to build your own local database of NYT article metadata.

This is the interface for interacting with the [Asana Platform](https://developers.asana.com). Our API reference is generated from our [OpenAPI spec] (https://raw.githubusercontent.com/Asana/develo...

Rev.ai provides quality speech-text recognition via a RESTful API. All public methods and objects are documented here for developer reference. For a real-time speech to text solution, use Rev.ai's ...

Automatically creates changelog entries from deployments by analyzing pull requests, commits, and code diffs across your GitHub repositories

Our SERP API delivers lightning-fast Google search results at unbeatable prices. Built for developers who need reliable, scalable access to search data without the complexity of web scraping or CAPTCHA challenges.

The Azure DevOps basic components of a REST API request/response pair

Remove the background of any image

Baidu's push notification service — iOS, Android, server-side with Java, Python, PHP SDKs

Baidu's mini program platform — search traffic distribution, AI capabilities, open ecosystem

API provided by balldontlie.io

Building quick backends

This API provides live access to the BC Data Catalogue. Further documentation on the API is available from http://docs.ckan.org/en/latest/ Confirm the version of the API available from the catalogu...

This REST API provides searchable access to information about geographical names in the province of British Columbia, including name status and details about the corresponding geographic feature. ...

Build a mock Rest API endpoint in seconds

The Benefits Intake API allows authorized third-party systems used by Veteran Service Organizations (VSOs), agencies, and Veterans to digitally submit VA benefits claim documents directly to the Ve...

This REST-API enables you to query station and stop infos

API provided by bhagavadgita.io

Bitbucket API

La plus grande API de Blagues FR/The biggest FR jokes API

Schedule screenshots of web pages and sync them to your cloud

Control IoT Devices from Blynk IoT Cloud

Find random activities to fight boredom

Botify Saas API

This document describes the [Intellifi Brain](https://intellifi.zendesk.com/hc/en-us/categories/360000685454) Web API specification using the [OpenAPI specification](https://github.com/OAI/OpenAPI-...

Make A Free A.I Brain

An index of billions of pages in a single call

API provided by bridgedb.org

Headless browser API for automation, scraping, and more

Easily make screenshots of web pages in any screen size, as any device

Bulk Data Storage System (BDSS) allows the public to discover, search, and download patent and trademark data in bulk form.

Douyin/TikTok mini programs — short video integration, e-commerce, live streaming capabilities

Car Registration API, An API that retrieves car information from its numberplate in many countries worldwide, uncluding the USA, UK, India, Australia and most of Europe. A username and password is ...

Catalog Inventory

Library info on CDNJS

Structured changelog metadata from open source projects

Import your orders, retrieve your orders and generate labels.

OpenAI-compatible API for Cherry Studio with additional Cherry-specific endpoints

APIs provided by Cholamandalam MS General Insurance Company Ltd..

Secure random string generator

Online classroom SDK — real-time video, whiteboard, breakout rooms, recording for EdTech applications

A friendly little API to help you interact with the ClearBlade platform.

Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More

Clubhouse API

Online Compiler for Various Languages

Chinese code hosting and DevOps platform (like GitHub) — repos, CI/CD, project management

API provided by roaring.io

Service for providing information to sellers about their listings being non-compliant, or at risk for becoming non-compliant, against eBay listing policies.

Used to retrieve and apply transformations to images

API provided by contribly.com

Get around the dreaded CORS error by using this proxy as a middle man

Corsfix lets you fetch any resource and bypass CORS errors, free for development environment

Free and simple counting service. You can use it to track page hits and specific events

API provided by covid19-api.com

CS:GO v3 Scores

CS:GO v3 Stats

Convert CSV files to JSON with this API. Ideal for developers who want to automate data workflows and integrate structured data

HTTP API for triggering instances of custom behavioral events

Serves the Clever Data API

Service to manage your databricks account,clusters, notebooks, jobs and workspaces

API provided by autotask.net

The Dealer API provides Dealer search functions.

OpenAPI for https://codesearch.debian.net/

# Welcome Implementing a new tool can be daunting, but it doesn't have to. You can implement journy.io in a few different ways to ensure it fits with the rest of your tech stack seamlessly. We we...

[DFlight API](https://ljaero.com/solutions/dflight/) supplies the up-to-date information needed for compliance with UAV preflight assessment requirements. Separate endpoints are available for each ...

Status of all DigitalOcean services

APIs provided by Directorate of Municipal Administration, Karnataka.

<p>This API drives the <a href="https://discovery.gsa.gov">Discovery Market Research Tool</a>. It contains information on the vendors that are part of the OASIS and OASIS Small Business contracting...

DJI drone SDK — flight control, camera, live video, mission planning for Mavic, Phantom, Matrice series

This api converts file formats of OpenXml and OpenOffice documents formats to vector files (e.g., svg)

Interact with Docker Hub

The DocuSign REST API provides you with a powerful, convenient, and simple Web services API for interacting with DocuSign.

Domain name search to find all domains containing particular words/phrases/etc

Domains-Index database powered API

APIs provided by Dr. B.R. Ambedkar Institute of Technology,Andaman & Nicobar Islands.

This API is DriveBC's implementation of the Open511 specification. It provides information about known road events (traffic accidents, construction, etc.) in British Columbia, Canada. Please note...

ADVICEment's [DynamicDocs API automates your document generation](https://advicement.io/dynamic-documents-api) and creates dynamic, optimized, interactive PDFs. Write your templates in LaTeX and ca...

Ecosystem API

APIs provided by eDistrict Odisha ServicePlus, Odisha.

The Beta endpoints for the new Email Activity APIs - functionality is subject to change without notice. You may not have access to this Beta endpoint. Email Activity offers filtering and search by...

AMBIT REST web services [eNanoMapper profile] with free text & faceted search

An OpenAPI for EVE Online

将二维数组转换为Excel文件

A simple JSON store API

The Vonage Business Cloud Extension API enables you to retrieve information about extensions. Your application must subscribe to the Provisioning API suite to use this API.

API discovered from kamiwaza-ai/kamiwaza-sdk

Figshare apiv2. Using Swagger 2.0

API provided by files.com

API for crawling websites and extracting data with Firecrawl.

# Overview The Fitbit Plus API is a RESTful API. The requests and responses are formated according to the [JSON API](http://jsonapi.org/format/1.0/) specification. In addition to this documentatio...

Create and manage customizable forms within your applications

A free tool to generate dummy JSON data for testing and prototyping.

With the Freesound APIv2 you can browse, search, and retrieve information about Freesound users, packs, and the sounds themselves of course. You can find similar sounds to a given target (based on ...

Braille conversion API on the cloud. Translate from English text to Braille and get Braille results suitable for many display types.[Click here to subscribe](http://funtranslations.com/api/braille)

The API to manage the GameSparks game details

Chinese developer content aggregator API — Android, iOS, frontend resources and tech articles

Make your app fast and responsive for a global audience with Gcore CDN.

Scalable, secure, and reliable hybrid cloud services anywhere in the world.

Fast and resilient DNS hosting service by Gcore. Improve the performance and availability of your online business.

Provide numerous capabilities for important testing and monitoring methods for websites

Estimates a gender from a first name

<div class="api-description"> <h2>Authentication</h2> <p>For all calls, supply your API key. <a href="https://www.geneea.com/pricing">Sign up to <em>obtain the key</em></a>.</p> <p> ...

Dynamically capture full page screenshots of websites.

This API represents address cleaning, correction, completion, geocoding, reverse geocoding, and proximity resources for intersection addresses, physical addresses and their occupants in British Col...

Sécurisez vos données en interfaçant votre logiciel métier avec le service en ligne GererMesAffaires

Trigger an email notification with a simple GET request

API provided by gettyimages.com

Get Published content into your Website, App or other embedded media

Giphy API

This documentation describes the Gitea API.

Make use of GitHub repositories, code and user info programmatically

GitHub's v3 REST API.

The platform for modern developers GitLab unifies issues, code review, CI and CD into a single UI

Automate GitLab interaction programmatically

Chat for Developers

Image generation API

Find information on products from around the globe. The API supports UPC, EAN, and ISBN barcode numbers, and info returned includes product name, description, brand, image URL, and more.

API to read, write, and format Google Docs documents

Enables ChatGPT to create Google Docs, Slides, and Sheets.

Google's mobile application development platform that helps build, improve, and grow app

Metadata for all families served by Google Fonts

API to read, write, and format Google Keep notes

API for issuers to save and manage Google Wallet Objects.

API to read, write, and format Google Sheets data

API to read, write, and format Google Slides presentations

Online REST API for Testing and Prototyping

The GoToTraining API enables developers to use the stable and robust GoToTraining functionality as the basis for online trainings in a proprietary learning management system. The GoToTraining APIs ...

Greenpeace Greenwire allows you connect with other volunteers, activists and groups working on environmental campaigns all across the world!

This documentation shows how to use Greip API, By highlighting the API methods, options and some other features that allow you to get the most of this API.

#### Revised: 2019-11-21 ### Overview groov View Public API revision 1.

This API returns all of North America’s prognosticating animals and their yearly weather predictions.

The groundwater wells, aquifers and registry API contains information related to groundwater wells and aquifers as well as a register of qualified well drillers and well pump installers registered ...

Chinese product analytics — auto-event tracking, conversion funnels, retention analysis, A/B testing

API provided by i-cue.solutions

The GSMtasks API is a RESTful web service for developers to programmatically interact with GSMtasks data, real-time delivery and task management and route optimization functionality.

Haier's smart home IoT platform — appliance control, scene management, cross-brand interoperability

This is the Handwrytten API for sending cards written in the handwriting of your choice. Using this api, you can send cards to users. You can also customize cards with logos, which can be saved an...

GraphQL and REST API Engine with built in Authorization

REST API to programmatically create apps, provision add-ons and perform other task on Heroku

This is the official API documentation for the Public Hetzner Cloud. ## Introduction The Hetzner Cloud API operates over HTTPS and uses JSON as its data format. The API is a RESTful API and utili...

<div class="swagger-ui-wrap extraFooter"><h3>Common Features / Behaviors</h3> <div class="features"> <ul> <li><strong>* "sort" param:</strong> supports multi column sorting through the use of comma...

The Buildings Database is a shared resource for the building industry. The Database, developed by the U.S. Department of Energy and the National Renewable Energy Laboratory (NREL), is a unique cent...

API provided by highwaysengland.co.uk

A lightweight, fast, and customizable app for testing and designing APIs. A free, fast, and beautiful

Basic DNS query via HTTP GET request

Domains Data API for Developers

Test endpoints for client and server HTTP/2 protocol support

A Simple HTTP Request & Response Service

A Simple HTTP Request & Response Service with HTTP/3 Support by Cloudflare

A simple HTTP Request & Response Service.<br/> <br/> <b>Run locally: </b> <code>$ docker run -p 80:80 kennethreitz/httpbin</code>

a free command-line HTTP client for the API era

Use your Android phone as an SMS gateway to send and receive SMS messages via a simple HTTP API

Huawei mobile push notification service for Android

This is an interactive document explaining the API(s) that could be used to fetch data from [Hubhopper](https://hubhopper.com). Use the api key provided to authorize `x-api-key` and test the API(s)...

API for domain search, professional email finder, author finder and email verifier

Hydra Movies is a streaming service that holds information on thousands of popular movies. The Hydra Movies API gives you access to [their entire collection of full movies.](https://hydramovies.c...

Convert text to speech

Get Epoch time

IP Address API

Insurance policies issued by ICICI Lombard (https://www.icicilombard.com) can be fetched by Citizens into their DigiLocker accounts.

APIs provided by ICICI Prudential Life Insurance Company Ltd.

IFTTT Connect API

API provided by illumidesk.com

Charts, simple as a URL. A safe and fast replacement for Google Image Charts

Generate charts, QR codes and graph images

API provided by import.io

Retrieve structured data from a website or RSS feed

Rail, bus, and elevator disruptions/outages.

API provided by increase.com

Empower your healthcare services with intelligent diagnostic insights of Infermedica API.

# Authentication &lt;!-- ReDoc-Inject: &lt;security-definitions&gt; --&gt;

A free API client that allows you to design, debug, test, and mock APIs locally, on Git, or cloud.

Description of Instagram RESTful API. Current limitations: * Instagram service does not support [cross origin headers](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS) fo...

This API enables you to convert an amount of one currency into another currency using current foreign exchange rates.

Geographic location of an IP address or any domain name along with some other useful information

IP address, country and city

WHOIS domain name lookup

Geographic location of an IP address or any domain name along with some other useful information

A simple IP Address API

Another simple IP Address API

IP geolocation and threat data API

API provided by ipqualityscore.com

A free IP Geolocation and proxy/tor/VPN detection API

Please make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.

China's leading push notification platform — Android, iOS, Web with Java, Python, PHP, Ruby SDKs

Package info and download stats on jsDelivr CDN

Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript

Create and edit awesome videos programmatically

Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps

Hassle-free JSON hosting. Convert your JSON file to an API in minutes at no cost.

# Endpoint Structure All URLs are in the format: ```text https://api.jumpseller.com/v1/path.json?login=XXXXXX&authtoken=storetoken ``` The path is prefixed by the API version and the URL take...

These docs describe how to use the Kangal Proxy API.

APIs provided by Kerala State Board of Public Examinations, Kerala.

Creates diagrams from textual descriptions

API provided by kubernetes.io

KKid API. Due to security concerns all calls to this API requires authentication. If you have access then you may use your KumpeApps username/password to authenticate. To gain access please use the...

API provided by lambdatest.com

Check texts for style and grammar issues with <a href='https://languagetool.org'>LanguageTool</a>. Please consider the following default limitations:<ul><li>your daily request limit depending on <a...

Chinese BaaS platform — real-time messaging, push notifications, data storage, cloud functions

API provided by learnifier.com

The REST API for LGTM provides data so that you can customize how you integrate LGTM analysis into your workflow. It includes the following resources: * `/` ([API root](https://lgtm.com/help/lgtm...

Unofficial REST API for choosealicense.com

Life Insurance policies issued by Life Insurance Corporation of India (https://www.licindia.in/) are available on DigiLocker and can be downloaded by citizens to their account.

API to easily extract data from websites. # Base URL All URLs referenced in the documentation have the following base: ``` https://api.link.fish ``` The REST API is only served over HTTPS. ...

This is LinQR QR Code API documentation. This API allows you to generate custom, visually attractive QR Codes. The cloud infrastructure guarantees high availability and autoscalability of the servi...

API discovered from rsksmart/liquidity-provider-server

Simple & no-nonsense podcast search & directory API. Search all podcasts and episodes by people, places, or topics.

Generate logs

<span style="color:green">**Is this your first time here? Please check out our [introduction to Loket (API)](./Introduction)**</span> **The initial loading time of this developer portal may be ver...

LoL v3 Projections

LoL v3 Scores

LoL v3 Stats

Online Lua 5.1 Decompiler

API provided by webflow.com

Retrieve vendor details and other information regarding a given MAC address or an OUI

APIs provided by Maharashtra Council of Indian Medicine.

This API lets you upload and transform a Markdown file to HTML

Upload Markdown and get JSON with one API call

API provided by vtex.local

Life Insurance policies issued by Max Life Insurance on or after April 1st,2008 are available to be pulled in citizen's DigiLocker account.

Returns doctors near a client given a lat/lon and autocomplete text.

API provided by meilisearch.com

The Cisco Meraki Dashboard API is a modern REST API based on the OpenAPI specification. > Date: 05 March, 2023 > > [Recent Updates](https://meraki.io/whats-new/) --- [API Documentation](https://...

API provided by vtex.local

Simple database service

API offered by Microcks, the Kuebrnetes native tools for API and microservices mocking and testing (microcks.io)

Fake Rest API for developers

Transit API can be used to obtain time-aggregated data representing moving the people between various spatial points within the Czech Republic. Having A - 'from' and B - 'to' points, the API can re...

Mock user defined test JSON for REST API endpoints

Monitor's external API for Firefox clients

Get IP address information

Transform MySQL EXPLAIN output to interactive graphs

APIs provided by National Insurance Company Ltd..

Estimate the nationality of a first name

API to access NetBox

Netlify is a hosting service for the programmable web

Network calculators, including subnets, DNS, binary, and security tools

API provided by nic.at

Full description of Noosh API

Hello and welcome! To make use of this API collection collection as it's written, please duplicate [this database template](https://www.notion.so/8e2c2b769e1d47d287b9ed3035d607ae?v=dc1b92875fb94f1...

Query information about your favorite Node.js libraries programmatically

This API allows programmers to build National Snow and Ice Data Center data and metadata services into their applications.

Provides a RESTful API for interacting with virtual cash registers and creating receipts that are conform with the Registrierkassensicherheitsverordnung (RKSV). You may find our [automatically gen...

This is the api to access the ODWeather API information

The Open Movie Database. The OMDb API is a free web service to obtain movie information, all content and images on the site are contributed and maintained by our users.

Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App

Build secure and scalable custom apps for Online Booking. Our flexible API provides many options for availability and booking. <br><br> Take the API for a test drive. Just click on the Authorize ...

API provided by klarna.com

The _Open Build Service API_ is a XML API. To authenticate, use [HTTP basic authentication](https://en.wikipedia.org/wiki/Basic_access_authentication) by passing the _Authorization_ header in the ...

API for calculating and comparing metrics of different websites using Page Rank algorithm

* [More documentation](https://docs.openstates.org/en/latest/api/v3/index.html) * [Register for an account](https://openstates.org/accounts/signup/) **We are currently working to restore experim...

This is an online openapi generator server. You can find out more at https://github.com/OpenAPITools/openapi-generator.

The All-in-one API Platform

API provided by opendatasoft.com

Really simple API to retrieve Open Graph data from an URL

A retrieval API for querying and filtering documents based on natural language queries and metadata

Please make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.

Endpoints that deal with order management. New version of the orders API.

Get the latest IRS data and most up to date charity information for your website or application

This is the full documentation of the [REST API](https://book.orthanc-server.com/users/rest.html) of Orthanc.<p>This reference is automatically generated from the source code of Orthanc. A [shorter...

API provided by osf.io

API discovered from OWASP/crAPI

API provided by oxforddictionaries.com

API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation

API provided by paccurate.io

Public API for javascript, css and font libraries on PageCDN

# Introduction Whether you're looking to build an official Pandascore integration for your service, or you just want to build something awesome, [we can help you get started](/home). The API wor...

AIaaS provides API access to our bot hosting platform and SDKs, allowing developers to easily integrate conversational interfaces into applications.

A self-hostable API that returns randomized messages for past-due invoices

# Introduction PDF Generator API allows you easily generate transactional PDF documents and reduce the development and support costs by enabling your users to create and manage their document templ...

PdfBroker.io is an api for creating pdf files from Xsl-Fo or Html and other useful pdf utilities.

## Who is this for? This documentation is for developers creating their own integration with [Feedback's](https://www.pendo.io/product/feedback/) API. If you are doing a standard integration, ther...

The perfectpdf api does one thing, perfectly: it converts html to pdf. The perfectpdf api uses headless Google Chrome to provide a low cost, high quality, simple to use service.

Random User Generator + OpenID Connect Provider. Like Lorem Ipsum, but for user accounts and authentication. The PhantAuth API documentation is available on the following API documentation sites: ...

APIs available for use on the www.php.net website.

Swagger Spec file that describes PI Web API

Piloterr web scraping API handles headless browsers, rotates proxies for you, and offers json-parsed data extraction

Hereafter is the documentation of the private API of [Pims: Pointages Intelligents pour le Monde du Spectacle](https://pims.io). This API is designed for 3rd-party softwares, editors and partners....

Pipedream is the fastest way to build powerful applications that connect all the services in your stack

This data set contains the list of polling places. It can be organized by ward/division, accessibility rating, or type of building. This list is used to assign poll workers, send the machines and...

Tool for testing APIs

The Postman API allows you to programmatically access data stored in Postman account with ease. The easiest way to get started with the API is to click the **fork** button to fork this collection ...

Postmark makes sending and receiving email incredibly easy. The Account-level API allows users to configure all Servers, Domains, and Sender Signatures associated with an Account.

APIs provided by Pramerica Life Insurance Ltd..

API discovered from prismlabs-tech/api-specifications

The Product Library API is used for managing merchant's product information and product images.

Create shopper profiles and manage their information.

Secure AI APIs in iOS - No SDK, Just Change Your API URL

API of self-hosted Proxmox VE. Address: https://your.server:8006/api2/json/ (configuring in installation process)

Scraping and crawling anticaptcha service

Rotating Proxy API that produces a working proxy on every request

Push notifications for Android & iOS

Realtime features

API for Qakka Queue System

Create an easy to read QR code and URL shortener

Generate and decode / read QR code graphics

Static and Dynamic QR code generator with custom and unique QR code design

Integrate custom and unique looking QR codes into your system or workflow

This document describes the Qualpay Payment Gateway API.

Work with Qualtrics surveys, distributions and response events

API for executing database queries.

# Introduction We have prepared a set of APIs for quick start to integrate telematics SDK that powers mobile telematics inside 3rd party mobile applications. * [CONTACT US](https://telematicssdk.c...

Generate chart and graph images

Random sentences from the complete works of H.P. Lovecraft. CORS-enabled.

Can be used to get AI Response, jokes, memes, and much more at lightning-fast speed

API provided by randommer.io

API documentation for redirection.io

REFUGE is a web application that seeks to provide safe restroom access for transgender, intersex, and gender nonconforming individuals.

This REST-API enables you to query information about travel centers in Germany.

Reverse AJAX service to notify clients

Insurance policies issued by Reliance General Insurance Company Limited is available on DigiLocker at (https://www.reliancegeneral.co.in) can be fetched by Citizens into their DigiLocker accounts

Lets you programmatically manage your Render services (web apps, APIs, and static sites) including deployments, scaling, and configuration

A hosted REST-API ready to respond to your AJAX requests