Feature
Client SDKs
Official libraries in multiple languages.
167 providers
961 APIs
150 declared variants
The provider maintains official client libraries so integrators skip hand-rolling HTTP, auth, retries, and pagination. Language coverage is often the deciding factor between two otherwise equal APIs.
167 API providers on the APIs.io network offer client sdks. The highest-rated are Airwallex, Didomi, Optimizely, LaunchDarkly, Anthropic.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 27 Complete, well-documented, and agent-ready
AirwallexAirwallex is a financial technology company that specializes in providing global payment solutions for busi...DidomiDidomi is a Paris-based consent and preference management platform (CMP/PMP) that helps publishers, adverti...OptimizelyOptimizely is a digital experience platform that provides A/B testing, feature flagging, content management...LaunchDarklyLaunchDarkly is a feature management and runtime control platform. Development teams use it to wrap release...AnthropicAnthropic is an AI safety company and the creator of the Claude family of large language models (Opus, Sonn...PostmanPostman is the world's leading API platform, used by 35+ million developers to design, build, test, documen...MedplumMedplum is an Apache 2.0 open-source, FHIR-native developer platform for shipping clinical software. It bun...BugsnagBugSnag is an application stability monitoring platform from SmartBear that helps software teams detect, di...VeevaVeeva Systems is the leading cloud software provider for the global life sciences industry, serving pharmac...OutbrainOutbrain Inc. (NASDAQ: OB), which closed its acquisition of Teads in early 2025 and now operates publicly a...AuthentikAuthentik is an open source identity provider from Authentik Security Inc., a public benefit company, expos...NovuNovu is the open-source notification infrastructure for developers. A single REST API and workflow engine r...CanvaCanva is the visual design platform used by hundreds of millions of people, and it exposes four distinct de...TaboolaTaboola (NASDAQ: TBLA) is a New-York-headquartered native and discovery advertising company founded in 2007...VitalVital (now operating as Junction, formerly tryVital) is a health-data API platform that gives digital-healt...Token.ioToken.io is an Open Banking infrastructure provider offering A2A (Account-to-Account) payments and account ...AppianAppian is a low-code automation platform that accelerates the creation of high-impact business applications...falfal (Features and Labels, Inc.) is a generative media platform providing the world's fastest API for runnin...KnockKnock is notifications infrastructure as a service — a product and customer messaging platform you use to p...SlackSlack is a cloud-based team collaboration platform that provides chat, file sharing, and integrations with ...SallaSalla is a Saudi Arabia-based e-commerce platform — often called the Shopify of the Middle East — that lets...SpeakeasySpeakeasy provides an AI control plane platform that lets enterprises govern, secure, and observe AI agents...NVIDIA NIMNVIDIA NIM (NVIDIA Inference Microservices) is a catalog of GPU-accelerated, containerized AI inference mic...WorkatoWorkato is an enterprise automation and integration platform that enables organizations to integrate their ...CumulocityCumulocity is an enterprise AIoT (Artificial Intelligence of Things) platform that connects, manages, and a...E2BE2B (e2b-dev) provides secure, isolated cloud sandboxes for AI agents and AI-generated code, built on a for...S&P GlobalS&P Global (NYSE SPGI) is the parent of S&P Global Ratings, S&P Global Market Intelligence, S&P Dow Jones I...
Strong 45 Solid coverage with minor gaps
HealthieHealthie is a cloud, API-first EHR and practice management platform purpose-built for digital health startu...Commerce LayerCommerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m...FireblocksFireblocks is an institutional digital-asset and stablecoin infrastructure company providing MPC-secured cu...Highlight (highlight.io)Highlight (highlight.io) is the open-source, full-stack monitoring platform — session replay, error monitor...SocureSocure is the leading vertically-integrated digital identity verification and fraud-prevention platform, us...PropelAuthPropelAuth is a B2B SaaS authentication and multi-tenant user management platform purpose-built for organiz...AnkrAnkr is a Web3 infrastructure provider whose multichain RPC, Advanced API, liquid staking, contract automat...StytchStytch is an authentication and identity infrastructure provider. Its Consumer and B2B APIs cover passwordl...RaygunRaygun is an application monitoring platform that combines Crash Reporting, Real User Monitoring (RUM), and...ThingsBoardThingsBoard is an open-source IoT platform for device connectivity, data collection, processing, and visual...Amazon X-RayAWS X-Ray is a distributed tracing service that helps developers analyze and debug production applications,...ViamViam is a robotics and edge AI platform founded in 2020 by Eliot Horowitz (MongoDB co-founder and former CT...Adafruit IOAdafruit IO is a cloud Internet of Things platform from Adafruit Industries built for makers, hobbyists, st...AffindaAffinda is an Intelligent Document Processing (IDP) platform that uses AI to extract structured data from d...API LeagueAPI League is a single-key hub of 55 read-only HTTP APIs spanning twelve categories — Books, News, Humor, F...Adobe Premiere ProAdobe Premiere Pro is a professional non-linear video editor. Its programmable surface has two halves: the ...FitbitFitbit is a wearable health and fitness platform — devices (trackers, smartwatches, smart scales) plus a co...AllegionAllegion plc is a global security products company with $3.8B in 2024 revenue, 13,000+ employees, and 30+ b...GiphyGIPHY is the world's largest library of GIFs, stickers, animated emoji, and Clips (GIFs with sound), with a...1Password1Password is a password manager that helps individuals and businesses securely store and manage passwords, ...ThingSpeakThingSpeak is an IoT analytics platform from MathWorks that lets devices aggregate, visualize, and analyze ...ExaExa is a web search API and AI research platform built specifically for LLMs and agents — semantic and keyw...ApideckApideck is the leading Unified API that doesn't store sensitive customer data. Build and maintain native in...FreestyleFreestyle is the infrastructure for code you didn't write — VMs and Git for AI agents. The platform provide...FlutterwaveFlutterwave is a pan-African payment infrastructure company providing the rails for businesses to accept, s...Arcade.devArcade.dev (formerly Arcade AI) is the MCP runtime for production AI agents — a platform that lets agents s...AssembledAssembled is a San Francisco-headquartered support operations platform that unifies workforce management (W...SourcepointSourcepoint is a New York City-headquartered enterprise privacy and consent management technology company f...FilevineFilevine is the leading legal case management and operating intelligence platform for plaintiff, personal-i...Amazon WorkMailAmazon WorkMail is a secure, managed business email and calendar service with support for existing desktop ...LichessLichess is a free, ad-free, open-source online chess server operated by a French nonprofit and powered enti...Leonardo.AILeonardo.AI is an Australian generative-AI company (acquired by Canva in July 2024) offering a Production A...TensorDockTensorDock operates a global GPU cloud marketplace that connects independent hardware hosts with customers ...BloombergBloomberg delivers business and markets news, data, analysis, and video to the world, featuring stories fro...ZoomZoom is a communications platform that allows users to connect with video, audio, phone, and chat. The Zoom...SoracomSoracom is a global IoT cellular connectivity and platform provider headquartered in Tokyo, founded in 2014...emnifyemnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN...BringgBringg is a last-mile delivery and fulfillment orchestration platform headquartered in Tel Aviv (founded 20...Pocket NetworkPocket Network is the decentralized RPC layer of Web3 — a permissionless, fully open data delivery protocol...CivitaiCivitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over ...HatchetHatchet is an open-source distributed task queue and workflow orchestration engine for background jobs, AI ...FintectureFintecture is a French Open Banking payments platform and ACPR-authorised payment institution (#17248). Its...MetaMapMetaMap (formerly Mati) is an identity verification platform founded in 2017 in San Francisco and headquart...PipedrivePipedrive is a sales CRM and pipeline management tool focused on small and mid-market teams. The Pipedrive ...AlloyAlloy is a New York-based identity decisioning platform that helps banks, credit unions, and fintechs onboa...
Developing 45 Usable, with meaningful gaps to close
TIDALTIDAL is a high-fidelity music streaming service owned by Block (Square's parent, acquired 2021) offering H...MindeeMindee is a document parsing and intelligent document processing platform. Its REST API (api-v2.mindee.net)...MoniepointMoniepoint is Africa's all-in-one financial platform for small and medium-sized businesses and individuals ...Rigetti ComputingRigetti Computing (Nasdaq, RGTI) is a Berkeley, California-based quantum computing company building superco...EncoreEncore is a backend application framework and developer cloud that lets engineering teams build type-safe d...ConektaConekta is a Mexico-based payment processor that lets businesses accept credit and debit cards, OXXO cash v...BifrostBifrost is a high-performance open-source AI gateway that unifies access to 20+ AI providers through a sing...PayPalPayPal is a global online payment system that lets individuals and businesses send and receive money electr...PostHogPostHog is an open source product analytics platform that provides event tracking, session recording, featu...Google Maps PlatformGoogle Maps Platform offers APIs and SDKs for maps, routes, and places functionality.WherebyWhereby is an embeddable video API plus standalone meetings product that lets developers add browser-based,...Instabug (Luciq)Instabug — now rebranded as Luciq — is an agentic mobile observability platform covering bug reporting, cra...TheTVDBTheTVDB is a community-driven television and movie metadata database founded in 2006. It supplies structure...UbiquitiUbiquiti Inc. (NYSE: UI) is an American networking technology company that designs and sells wireless and w...LunarLunar is an enterprise-grade API management and AI control plane platform that provides a unified gateway f...TelstraTelstra is Australia's largest telecommunications and mobile network operator, providing fixed broadband, m...SumsubSumsub is a London-headquartered global verification platform offering an integrated full-cycle solution fo...WeChatWeChat (Weixin) is Tencent's flagship super-app, combining messaging, social, payments, mini-apps, official...AWS X-RayAWS X-Ray is a service that helps developers analyze and debug distributed applications by providing end-to...BanubaBanuba is an AR and AI technology company providing the Face AR SDK for augmented reality face effects, bea...Bright DataBright Data is an Israeli web data platform and operator of the world's largest legitimate residential prox...LivepeerLivepeer is a decentralized video infrastructure network. Independent orchestrators run GPU hardware to pro...ParasailParasail is an AI Supercloud — a pay-per-token GPU inference platform aimed at AI startups and developers. ...1NCE1NCE is a Cologne-headquartered global IoT connectivity provider best known for the IoT Lifetime Flat — a s...KushkiKushki is an Ecuador-headquartered LatAm fintech operating as a regional non-banking acquirer for the Andea...ContinueContinue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The ...CloudinaryCloudinary is a cloud-based service that provides comprehensive solutions for managing digital media assets...Help ScoutHelp Scout is an email-first help desk platform with shared inboxes, live chat, knowledge bases, and a cust...LangWatchLangWatch is an open-source LLM observability, evaluation, and AI agent testing platform. Built around Open...StackOneStackOne is an AI-powered embedded integration platform as a service (iPaaS) designed to simplify and accel...Juniper Mist AIJuniper Mist AI is the AI-driven enterprise networking platform that powers Juniper Networks' AI-Native Net...Argo WorkflowsArgo Workflows is an open-source, container-native workflow engine for orchestrating parallel jobs on Kuber...LinearLinear is an issue tracking and product development platform for software teams covering Intake, Plan, Buil...TrackingMoreTrackingMore is a multi-carrier shipment tracking platform offering a unified REST API that integrates with...AmadeusAmadeus for Developers is the self-service developer program from Amadeus IT Group, the leading technology ...RollbarRollbar is a real-time error tracking and monitoring platform for software teams. It automatically captures...Jito LabsJito Labs is the Solana MEV infrastructure company behind Jito-Solana, the MEV-enabled validator client tha...Elastic.ioElastic IO is a cloud-based integration platform that helps businesses effortlessly connect their various a...Apache DubboApache Dubbo is a high-performance, Java-based open-source RPC framework that provides service discovery, t...MapboxMapbox is a leading mapping and location data platform that provides tools and services to help developers ...ForethoughtForethought is a San Francisco-based generative AI customer-support platform. Its multi-agent product suite...OpenHandsOpenHands (by All Hands AI, formerly OpenDevin) is an open-source autonomous coding agent platform. Ships a...FreshworksFreshworks is a software company that develops cloud-based business software including customer support, IT...IEEE XploreIEEE Xplore is the authoritative technical library operated by the Institute of Electrical and Electronics ...Ricoh USARicoh USA is the United States operating company of Ricoh Co., Ltd. — a global imaging, printing, document ...
Thin 29 Limited public surface area
PolarPolar Electro Oy (operating as Polar Global) is a Finnish sports and fitness technology company founded in ...SplitSplit, now part of Harness Feature Management and Experimentation, is a feature flag and experimentation pl...AmpersandAmpersand is a developer-first platform for building native SaaS integrations. It provides an embeddable UI...AutoRestAutoRest is an open source tool from Microsoft (MIT License) that generates client libraries for accessing ...io.netio.net is a decentralized GPU network for AI compute, built on Solana, that aggregates idle consumer and da...WixWix is a cloud-based web development platform that allows users to create professional websites and online ...ACI.devACI.dev (Aipolabs Agent-Computer Interface) is an open-source tool-calling platform that hooks AI agents in...Bloomberg NewsBloomberg News is a leading global provider of financial news, data, and analysis, delivering breaking news...Pagar.mePagar.me is the API-first online payments platform from Stone Co., one of Brazil's largest financial techno...Surge AISurge AI is a human-data company that provides large-scale, expert-quality labeled data for training and ev...RiskifiedRiskified (NYSE RSKD) is an Israeli ecommerce risk-management platform that uses machine learning and a glo...Apache DolphinSchedulerApache DolphinScheduler is a modern distributed and extensible data orchestration platform governed by the ...PaysafePaysafe is an integrated payment platform providing businesses with REST APIs for online payments, digital ...UpworkUpwork is a global freelancing platform that connects businesses with independent professionals through a t...JitsiJitsi is a collection of free and open-source projects for secure, simple, and scalable real-time video con...OPayOPay is a Nigerian mobile money and fintech super-app operated by Blue Ridge Microfinance Bank (OPay Digita...FormantFormant is a San Francisco–based robotics and physical-operations cloud platform that lets companies operat...Apache TinkerPopApache TinkerPop is a graph computing framework for both graph databases (OLTP) and graph analytic systems ...AgoraAgora is a real-time engagement platform providing ultra-low latency voice, video, signaling, chat, interac...Bloom CreditBloom Credit is a fintech infrastructure company providing API access to consumer credit data from all thre...Eyevinn TechnologyEyevinn Technology is a Stockholm, Sweden based video streaming consultancy and open source company special...Lex MachinaLex Machina is a legal analytics platform owned by LexisNexis that transforms raw court documents and docke...GlamaGlama is an all-in-one AI workspace combining an MCP server marketplace and registry, a managed MCP gateway...FawryFawry is Cairo-based Egypt's leading provider of e-payments and digital finance solutions, operating a nati...ApifuseApifuse is a native integration platform that enables SaaS companies to build and embed integrations direct...API.Videoapi.video is a video infrastructure platform offering APIs for video on demand, live streaming, analytics, ...LidoLido is the leading liquid staking protocol on Ethereum, allowing anyone to stake ETH without locking it or...Bloomberg IntelligenceBloomberg Intelligence provides research, data, and analytics on companies, industries, credit, government,...FirelyFirely is an Amsterdam-based health IT company and one of the original co-developers of the HL7 FHIR (Fast ...
Emerging 20 Early or largely undocumented
YarnYarn is an open-source JavaScript package manager and project manager originally created at Facebook in 201...SignifydSignifyd is an ecommerce fraud prevention, chargeback protection, and revenue optimization platform. Its Co...Shelf.ioShelf.io is the first knowledge automation platform and next-generation AI agentic platform for knowledge m...BetSolutionsBetSolutions provides a casino and gaming platform API offering a two-way HTTP API with JSON data format fo...Pendle FinancePendle Finance is a decentralized yield-trading protocol that tokenizes future yield by stripping yield-bea...HPE Aruba NetworkingHPE Aruba Networking is the networking business unit of Hewlett Packard Enterprise (NYSE HPE), born of Arub...QuEra ComputingQuEra Computing is a Boston-based neutral-atom quantum computing company (founded 2018) that operates Aquil...GarminGarmin is the global leader in GPS-enabled wearables, cycling computers, outdoor handhelds, marine electron...SSTSST is an open source TypeScript framework for building full-stack applications on your own infrastructure....Bloomberg EnterpriseBloomberg Enterprise provides enterprise-grade financial data distribution, analytics, and connectivity sol...BlackRockBlackRock is the world's largest asset manager with over $10 trillion in assets under management. Through i...SardineSardine is a San Francisco-based fraud prevention, AML compliance, and risk management platform for fintech...Arthur J. GallagherArthur J. Gallagher & Co. is a global insurance brokerage, risk management, and consulting firm headquarter...KountKount is a Boise, Idaho-based fraud prevention and chargeback management platform, now operating as part of...ABB RoboticsABB Robotics is the robotics and discrete-automation business of ABB Ltd, the Swiss-Swedish multinational h...PasqalPasqal is a French neutral-atom quantum computing company headquartered in Palaiseau, France and co-founded...AtomicAtomic is the connected-banking infrastructure for income, payroll, and merchant data. Their user-permissio...AstroPayAstroPay is a Uruguay-founded fintech and electronic money institution offering a multicurrency wallet, vir...Babylon.jsBabylon.js is an Apache-2.0 licensed, TypeScript-first open-source 3D engine and rendering framework sponso...ChubbChubb Limited is the world's largest publicly traded property and casualty (P&C) insurance company, serving...
Minimal 1 Almost no public developer surface
What Providers Actually Declared
This feature is a canonical term. These are the free-text strings
providers wrote in their own apis.yml that map onto it.
20+ SDKs30+ language SDKs50+ platform SDKs (Node, Ruby, Python, JS, mobile, game engines)9 Language SDKsAI SDKAdministrative SDKAladdinSDKAllegion Device Communication SDK (iOS, Android) for ENGAGE device commissioning and door file distributionApps SDKAuto-generated TypeScript and Python SDKs from the OpenAPI spec at packages/continue-sdkAuto-generated client SDKs in TypeScript, Go, and JavaScript from the backend sourceAzure SDK IntegrationBackend SDKs for Node, Express, FastAPI, Flask, Django REST Framework, Python, Go, Rust, .NET, Ruby, and Cloudflare WorkersBeacon device-intelligence JavaScript snippet plus iOS, Android, React Native, and Unity SDKsBloqade Analog Python SDK (pip install bloqade-analog) — hardware-first AHS submission to AquilaBringg Dispatcher web app and JavaScript SDK for embedded dispatch UXBroad Sdk SupportBrowser SDKs for React, Next.js, Remix, Vue, Angular, Gatsby, SvelteKit, Electron, React Native (beta)C++ SDK ExtensionsCode-First SDKsCommunity SDKs and wrappers for PHP, Laravel, Python; official Dart utility library (dart-flow)Connect IQ wearable application platform with Monkey C, device simulators, and VS Code extension (SDK 9.1.0)Connector SDK for custom integrationsCross-Platform SDKCross-Platform SDKsCustom Apps SDKCustom Connector SDKCustom functions SDK for registering proprietary tools alongside the catalogCustom sandbox templates built from e2b.toml or programmatic SDK definitions with cached build layersDatafile-based Feature Experimentation SDKs (10+)Developer free: unlimited flags, seats, 30 SDKs, 5K replays, 10M logsDevice Intelligence and Behavioral Biometrics SDKs for web, iOS, and Android (5.4B+ devices profiled)Device profiling JavaScript snippet and Android/iOS SDKsDigital Intelligence (SigmaDevice SDK) for device fingerprinting and behavioral biometricsDrop-in SDK compatibility with OpenAI SDKs and LangChainEditor SDKs (@yarnpkg/sdks) for VS Code, Vim, and other editors to integrate with PnPEmbeddable video calls via iframe, Web Component, or React Browser SDKEmbedded Insurance via Chubb Studio APIs/SDKsEmbedded Wallets / Non-Custodial Wallets (NCW) — wallet-as-a-service with mobile and web SDKsFirely CQL SDK — Clinical Quality Language execution engine for .NET
Showing 40 of 150 declared variants
Work with this as data
Every feature here is available over the APIs.io API and to AI agents over MCP. Features is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.