Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 81 Complete, well-documented, and agent-ready

HubSpot Calling Extensions APIThe calling extensions SDK enables apps to provide a custom calling option to HubSpot users directly from C...91.9 Salesforce Mobile SDKThe Salesforce Mobile SDK provides libraries and tools for building native and hybrid mobile applications o...88.0 Canva Apps SDKBuild apps that extend Canva's editor with custom functionality, content, and integrations.87.3 WSO2 SDKs APIThe SDKs API from WSO2 — 2 operation(s) for sdks.84.3 OpenAI Agents SDKThe OpenAI Agents SDK is a lightweight framework for building multi-agent workflows in Python and TypeScrip...82.5 Postman SDKs APIThe sdKs API from Postman — 6 operation(s) for sdks.82.5 Sentry SDK APISentry provides official SDKs for 22+ platforms including JavaScript, Python, PHP, .NET, Java, Go, Ruby, Ru...80.7 Flagsmith Flags APIThe Flagsmith Flags API is the public-facing REST API that client-side and server-side SDKs use to retrieve...79.4 Flagsmith SDK APISDK endpoints for flags, identities, and traits.79.4 Amazon Connect Streams SDKAmazon Connect Streams is a browser-based integration API and JavaScript SDK that enables embedding and con...79.0 HERE SDK for AndroidNative Android SDK with maps, routing, search, navigation, and offline capabilities for mobile applications.79.0 HERE SDK for FlutterFlutter SDK wrapping HERE Mobile SDK capabilities for cross-platform mobile applications.79.0 HERE SDK for iOSNative iOS SDK with maps, routing, search, navigation, and offline capabilities for mobile applications.79.0 Didomi Android SDKDidomi's Android and Android TV SDK delivers native consent notices, preference popups, and TCF / GPP / Did...78.8 Didomi Cross-Platform SDKs (React Native, Flutter, Unity, Vega OS, AMP)Didomi maintains first-party CMP plugins for React Native, Flutter, Unity (games and game consoles), Vega O...78.8 Didomi iOS SDKThe iOS / tvOS / Mac Catalyst SDK renders Didomi consent notices and preference centers natively in Swift a...78.8 Didomi Web SDKThe Didomi Web SDK is the browser-side library that renders consent notices, preference centers, and privac...78.8 Automation Anywhere Package SDKThe Automation Anywhere Package SDK is a Java-based development toolkit that enables developers to build cu...76.7 Scalar SDKsScalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include T...76.4 Scalar SDKS APIThe sdks API from Scalar — 18 operation(s) for sdks.76.4 Moov Backend SDKsMoov provides official server-side client libraries for interacting with the Moov API across multiple progr...75.9 Veeva Vault Java SDKThe Veeva Vault Java SDK (VAPIL) is an open-source Java-based REST API client for the Vault REST API. Provi...75.2 ArcGIS API for PythonThe ArcGIS API for Python provides a Pythonic interface for GIS capabilities including data management, spa...75.0 ArcGIS Maps SDK for JavaScriptThe ArcGIS Maps SDK for JavaScript enables web developers to build compelling 2D and 3D mapping application...75.0 Power Query Connectors APIAPI for building and managing custom data connectors for Power Query using the M language and Connector SDK.74.7 Power Query SDKDevelopment toolkit for building custom Power Query connectors using Visual Studio Code, including project ...74.7 New Relic Mobile SDKThe New Relic Mobile SDK provides iOS and Android APIs for extending mobile monitoring data collection beyo...74.4 New Relic Telemetry SDKsThe New Relic Telemetry SDKs are open source client libraries for sending metrics, events, logs, and traces...74.4 Maps SDK for AndroidAdd maps to Android and Wear OS applications with customizable markers, polylines, and user interaction sup...73.6 Maps SDK for iOSAdd maps to iOS applications with automatic server access, map display, and gesture handling.73.6 Navigation SDK for AndroidIntegrate Google Maps turn-by-turn navigation into Android applications with UI customization and route con...73.6 Navigation SDK for iOSIntegrate Google Maps turn-by-turn navigation into iOS applications with UI customization and route configu...73.6 Places SDK for AndroidAccess rich place information including names, addresses, ratings, and photos in Android applications.73.6 Places SDK for iOSAccess rich place information including names, addresses, ratings, and photos in iOS applications.73.6 Clerk Astro SDKAdapter for the Astro framework with components and middleware.73.1 Clerk C# / .NET SDKOfficial C# / .NET SDK for the Clerk Backend API.73.1 Clerk Expo SDKExpo / React Native bindings for Clerk supporting OAuth via deep links, secure session storage, and biometr...73.1 Clerk Go SDKOfficial Go SDK for the Clerk Backend API.73.1 Clerk Java SDKOfficial Java SDK for the Clerk Backend API.73.1 Clerk JavaScript SDKOfficial ClerkJS browser library and monorepo of framework adapters (Next.js, React, Expo, React Router, As...73.1 Clerk Next.js SDKNext.js integration covering App Router and Pages Router, middleware, route handlers, server components, an...73.1 Clerk Node.js SDKBackend SDK for Node.js (@clerk/backend / @clerk/express / @clerk/fastify) that wraps the Backend API and v...73.1 Clerk PHP SDKOfficial PHP SDK for the Clerk Backend API.73.1 Clerk Python SDKOfficial Python SDK for the Clerk Backend API.73.1 Clerk React Router SDKAdapter for React Router v7 (Remix successor) covering loaders, actions, and server-rendered authentication.73.1 Clerk React SDKReact components, hooks, and providers from the @clerk/clerk-react package for plain React SPAs.73.1 Clerk Ruby SDKOfficial Ruby SDK for the Clerk Backend API, with a Rails integration.73.1 Clerk TanStack Start SDKAdapter for TanStack Start (React full-stack framework) with route-level authentication helpers.73.1 Jitterbit Connector SDK REST APIAPIs for registering and managing connectors created with the Jitterbit Connector SDK — log in to Harmony, ...73.1 Speakeasy Contract TestingAPI contract test generation using OpenAPI specs and the Arazzo specification. Generates both test code and...72.3 Speakeasy React Query HooksTurns your OpenAPI spec into fully typed TanStack Query hooks with built-in caching, retries, and paginatio...72.3 Speakeasy SDK GenerationGenerate idiomatic, type-safe SDKs in 7+ languages from OpenAPI specs. Supports TypeScript, Python, Go, Jav...72.3 Nutanix Prism Central API V4The next-generation v4 API for managing the Nutanix Cloud Platform through Prism Central with GA SDKs for P...72.2 Canvas Medical SDKA Python SDK that enables developers to build plugins that execute natively within the Canvas EMR infrastru...71.0 Appian Integration SDKThe Appian Integration SDK enables developers to build connected system plug-ins that extend Appian's low-c...70.7 Appian UI SDKThe Appian UI SDK lets developers design custom component plug-ins to extend Appian interfaces by adding ne...70.7 Azure Quantum Python SDKPython SDK for submitting jobs to Azure Quantum. Supports Q#, Qiskit, Cirq, and pass-through provider input...70.3 Medusa JS SDK (@medusajs/js-sdk)Official TypeScript / JavaScript SDK wrapping the Store and Admin REST APIs - typed clients, auth helpers, ...69.8 CrawlCheck SDK APIThe Sdk API from CrawlCheck — 1 operation(s) for sdk.69.6 Dolby OptiView PlayerCross-platform video playback (formerly THEOplayer) for web, Android/Fire TV, iOS/tvOS, Roku, React Native ...68.9 MATLAB Compiler SDK APIBuild C/C++ shared libraries, .NET assemblies, Java classes, and Python packages from MATLAB programs for i...68.8 Boomi Connector Deployment APIThe Boomi Connector Deployment API provides programmatic access to deploy connectors created using the Boom...68.5 Azure Event Hubs SDKClient libraries for various programming languages to interact with Event Hubs.68.4 Iterable Android SDKThe Iterable Android SDK provides native integration between Android applications and the Iterable marketin...68.3 Iterable iOS SDKThe Iterable iOS SDK allows developers to integrate Iterable's marketing automation features into native iO...68.3 Iterable React Native SDKThe Iterable React Native SDK enables developers to integrate Iterable's marketing automation capabilities ...68.3 Iterable Web SDKThe Iterable Web SDK enables developers to integrate Iterable's marketing automation capabilities directly ...68.3 CloudKit FrameworkThe native CloudKit framework for iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. Provides programmatic ac...67.9 CloudKit JSCloudKit JS is Apple's JavaScript SDK that wraps the CloudKit Web Services REST API for browser apps. It pr...67.9 Token.io Android Webview SDKAndroid webview SDK for embedding Token.io Hosted Payments pages in native Android apps.67.9 Token.io C# SDKOfficial Token.io C# / .NET SDK for the Open Banking API.67.9 Token.io iOS Webview SDKiOS webview SDK for embedding Token.io Hosted Payments pages in native iOS apps.67.9 Token.io JavaScript SDKOfficial Token.io JavaScript SDK for Node.js and browser environments interacting with the Token System and...67.9 Token.io Objective-C SDKOfficial Token.io Objective-C SDK for iOS.67.9 Token.io PHP SDKOfficial Token.io PHP SDK for interacting with the Token System and Open Banking API.67.9 Configuration Manager SDKSoftware Development Kit for extending and integrating with Configuration Manager, including WMI providers,...67.4 Intune App SDKSDKs for iOS and Android that enable mobile apps to support Intune app protection policies. Allows develope...67.4 Intune PowerShell SDKPowerShell module providing native cmdlet support for invoking the Microsoft Intune Graph API. Enables IT a...67.4 Neo4j Java DriverThe Neo4j Java Driver is the official library for connecting Java applications to Neo4j graph databases. Di...66.6 Neo4j JavaScript DriverThe Neo4j JavaScript Driver is the official library for interacting with Neo4j graph databases from JavaScr...66.6 Neo4j Python DriverThe Neo4j Python Driver is the official library for interacting with Neo4j graph databases from Python appl...66.6

Strong 74 Solid coverage with minor gaps

Developing 159 Usable, with meaningful gaps to close

Thin 185 Limited public surface area

Emerging 136 Early or largely undocumented

Wormhole TypeScript SDKUnified TypeScript SDK for building cross-chain applications on Wormhole. Supports Native Token Transfers, ...26.1 Vocode Open Source Libraryvocode-core, the MIT-licensed Python library for building voice-based LLM agents with pluggable STT, LLM, a...25.9 Factory Droid SDK (TypeScript)TypeScript SDK for building, invoking, and orchestrating Droids. Public source on GitHub at Factory-AI/droi...25.7 Hotjar JavaScript SDKThe Hotjar JavaScript SDK (@hotjar/browser) is an npm package that provides a programmatic interface for in...25.5 GMX TypeScript SDKOfficial @gmx-io/sdk package shipping two clients: GmxSdk (SDK v1) for full read/write access via RPC, and ...25.4 Yarn Plugin APIYarn ships with a full plugin API exposed by `@yarnpkg/core`. Plugins can register commands, resolvers, fet...25.3 BandChain.js SDKBandChain.js is a comprehensive TypeScript library for seamless interaction with BandChain and Cosmos SDK b...25.2 PyBand Python SDKPyBand is a Python SDK that offers a comprehensive set of features for interacting with BandChain via gRPC....25.2 Godot GDExtension (C++ Bindings)GDExtension is Godot 4's mechanism for binding native C++ (or any language with a C ABI) into the engine wi...25.1 in-toto Go ImplementationA Go implementation of the in-toto specification that enables supply chain integrity verification in Go-bas...25.1 in-toto Python Reference ImplementationThe Python reference implementation of in-toto provides tools and libraries for creating and verifying in-t...25.1 starknet-rs SDKRust SDK for Starknet with high-performance providers, accounts, contract bindings, ABI codegen, and Cairo ...25.0 starknet.js SDKJavaScript / TypeScript SDK for Starknet — providers, accounts, contract classes, ABI parsing, transaction ...25.0 starknet.py SDKPython SDK for Starknet maintained by Software Mansion, covering account / contract interaction, Cairo ABI ...25.0 Pendle Boros SDKOfficial TypeScript SDK (`@pendle/boros-sdk-public`) that wraps calldata generation, EIP-712 signing, the A...24.8 Pendle Hosted SDK APIA hosted REST API that generates ready-to-broadcast calldata for every Pendle protocol action — swap (inclu...24.8 Filecoin Onchain Cloud Synapse APIHigh-level TypeScript SDK and API for the Filecoin Onchain Cloud — a smart-contract-based marketplace provi...24.6 what3words Android SDKOfficial Android wrapper around the what3words Public API for native Android applications.24.6 what3words Java SDKOfficial Java wrapper around the what3words Public API for server-side JVM applications.24.6 what3words JavaScript SDKOfficial JavaScript wrapper around the what3words Public API for browser and Node.js applications.24.6 what3words PHP SDKOfficial PHP wrapper around the what3words Public API.24.6 what3words Python SDKOfficial Python wrapper around the what3words Public API.24.6 what3words Swift SDKOfficial Swift wrapper around the what3words Public API for iOS, iPadOS, and macOS applications.24.6 Raycast AI APIAI access surfaced through the SDK via `AI.ask(prompt)` - no API keys or HTTP endpoint required. Routes pro...24.5 Raycast Extension API (SDK)The primary developer interface - the @raycast/api npm package. A strongly typed TypeScript/Node SDK (insta...24.5 Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...24.4 OnchainKitReact component library and TypeScript SDK (@coinbase/onchainkit) for building onchain apps on Base — walle...24.4 Paytm All-in-One SDK (Android)Native Android SDK that hosts the Paytm payment experience inside the merchant app, supporting UPI, cards, ...24.4 Paytm All-in-One SDK (iOS)Native iOS SDK that hosts the Paytm payment experience inside the merchant app across all supported payment...24.4 Phantom Browser SDKFramework-agnostic Browser SDK for integrating Phantom into vanilla JavaScript or TypeScript web apps. Wrap...24.4 Phantom React Native SDKReact Native SDK that lets iOS and Android apps embed Phantom wallet functionality, including embedded wall...24.4 Phantom React SDKReact SDK (@phantom/react-sdk) for integrating Phantom across Solana and EVM chains with embedded wallet su...24.4 Shakr Video Editor SDKEmbeddable, white-labeled drag-and-drop video editor for the browser (npm @shakrmedia/editor-sdk).24.4 Voyage AI Python SDKOfficial Python client (voyageai) wrapping the embeddings, multimodal, contextualized, and reranking endpoi...24.2 Voyage AI TypeScript SDKOfficial TypeScript / JavaScript client for the Voyage AI REST API.24.2 IDKit (Web / React Widget)Client-side widget for triggering a World ID verification from a web or React app. Handles QR-code / deep-l...24.0 World Mini Apps (MiniKit)Mini Apps run inside World App and use MiniKit to access wallet capabilities - payments in WLD / USDC, sign...24.0 Manifold Studio Apps APIREST API backing Manifold's Client SDK, providing product instance data and purchase preparation informatio...23.9 Jumio Cordova PluginApache Cordova plugin wrapping the iOS and Android SDKs for hybrid Cordova apps.23.8 Jumio Flutter PluginFlutter plugin wrapping the iOS and Android SDKs for Flutter applications. MIT-licensed.23.8 Jumio Mobile SDK (Android)Native Android SDK (Java/Kotlin) that captures ID, supporting documents, and selfie biometrics, with on-dev...23.8 Jumio Mobile SDK (iOS)Native iOS SDK (Swift) that captures ID, supporting documents, and selfie biometrics, with on-device pre-ch...23.8 Jumio React Native PluginReact Native plugin wrapping the iOS and Android SDKs for cross-platform mobile apps.23.8 NSwagNSwag is an open source .NET toolchain for generating C# and TypeScript API clients and Swagger/OpenAPI spe...23.7 Push Chain Core SDKJavaScript/TypeScript SDK (@pushchain/core) for the Push Chain Universal Layer 1 blockchain. Exposes PushCh...23.4 Farcaster AuthKit (React)React toolkit wrapping Sign In with Farcaster - provides hooks and components for the QR-code / deep-link h...23.3 Farcaster Mini Apps SDKJavaScript SDK for building Mini Apps (the evolution of Frames) that run inside Farcaster feeds and clients...23.3 EigenCompute SDK & CLIEigenCompute lets developers run arbitrary code in any language, with the execution secured by restakers an...23.0 EigenSDK (Go)Go SDK for building AVS operator software and AVS-side services on top of EigenLayer. Provides typed bindin...23.0 EigenSDK (TypeScript)TypeScript SDK for interacting with the EigenLayer restaking protocol and AVS contracts from Node.js and br...23.0 Genql GraphQL APIFully-typed TypeScript client generated from any GraphQL schema, enabling type-safe query building with IDE...22.9 AxelarJS SDKJavaScript/TypeScript SDK wrapping common cross-chain operations on the Axelar network. Key classes include...22.6 Kipu Quantum Hub APIREST API and Python SDK for the Kipu Quantum Hub — submit quantum-classical workflows, run pre-built quantu...22.5 Bloqade Analog Python SDKBloqade Analog (pip install bloqade-analog) is QuEra's Python SDK for writing, simulating, and submitting a...22.4 Bloqade Circuit Python SDKBloqade Circuit is the gate-model eDSL component of the Bloqade family, built on the Bloqade Core eDSL infr...22.4 Bloqade.jl Julia SDKBloqade.jl is QuEra's Julia package for quantum computation and quantum simulation based on the neutral-ato...22.4 CyberConnect JavaScript SDKThe CyberConnect JavaScript SDK provides connect and disconnect (follow and unfollow) functions for writing...22.3 Mantle SDKTypeScript SDK for bridging MNT, ETH, ERC-20, and ERC-721 tokens between Ethereum L1 and Mantle L2. Mirrors...21.8 Spline Code API for KotlinAndroid client SDK for embedding Spline scenes in Kotlin apps.21.7 Spline Code API for SwiftUIiOS client SDK for embedding Spline scenes in SwiftUI apps.21.7 Spline Code API for WebClient SDK for embedding and interacting with Spline scenes from JavaScript.21.7 AgentOps Python SDKThe AgentOps Python SDK is the primary entry point, installable via pip install agentops and initialized wi...21.6 AgentOps TypeScript SDKAgentOps' TypeScript SDK provides instrumentation for the OpenAI Agents SDK in Node.js applications, surfac...21.6 AdsWizz SDKThe AdsWizz SDK provides mobile and web integration for audio advertising, supporting VAST-compliant ad tec...21.4 Better Auth LibraryCore TypeScript library distributed as the `better-auth` npm package. Configured in the application backend...21.3 nostr-tools JavaScript Librarynostr-tools is the de-facto JavaScript/TypeScript library for Nostr clients and bots. It implements event c...21.2 PyAnsysOpen-source Python ecosystem for Ansys products. The pyansys metapackage bundles 45+ libraries including Py...21.1 Renault Group Android Automotive SDK and Vehicle PropertiesSDK and onboard vehicle APIs for building Android Automotive OS apps on Renault Group openR / openR evo inf...21.1 zSpace Core SDK (Native C API)The zSpace Core SDK is a native C API (documented as native_sdk_4.0) that lets an application drive a zSpac...20.9 Boston Dynamics Spot SDKThe Spot SDK is an open-source SDK for developing applications and payloads for the Spot quadruped robot. B...20.8 Garmin Connect IQ PlatformConnect IQ is Garmin's open platform for building wearable apps that run on Garmin watches and cycling comp...20.0 Garmin FIT SDKThe Flexible and Interoperable Data Transfer (FIT) protocol is Garmin's compact binary file format for spor...20.0 Garmin Health SDKMobile SDKs for iOS and Android that pair directly with Garmin wearables over BLE and stream raw real-time ...20.0 Resurface Logger for GoOpen-source Go library for logging API requests and responses to the Resurface database. Integrates with go...19.9 Notional Typescript SDKClient-side Typescript SDK for interacting with Notional Finance smart contracts. Provides helper methods f...19.8 libcurllibcurl is a free, easy-to-use, thread-safe, IPv6-compatible client-side URL transfer library written in C ...19.7 Helium Program Library (Solana)Open-source Solana on-chain programs and TypeScript client SDKs powering the Helium DAO, sub-DAOs, HNT / IO...19.6 Mirai uzu Inference SDKuzu is Mirai's first-party, high-performance on-device inference engine. A single high-level API — shared a...19.6 Tradeweb Python APIPython API enabling seamless integration between trading strategies and Tradeweb execution. Allows direct c...19.2 ABB PC SDKThe PC SDK is a .NET software development kit that lets system integrators, third parties, and end users bu...19.1 ABB RobotStudio SDKThe RobotStudio SDK enables developers to build custom applications, Add-Ins, and SmartComponents that exte...19.1 Pulser SDKPulser is Pasqal's open-source (Apache-2.0) Python framework for composing, simulating, and executing pulse...19.1 Qadence SDKQadence is Pasqal's higher-level digital-analog quantum programming interface for writing variational quant...19.1 QoolQit SDKQoolQit is Pasqal's Python package for simplified algorithm development in the Rydberg Analog Model on neut...19.1 Berachain Developer ToolsCurated registry of RPC providers, oracles, indexers, wallets, dev IDEs, and SDK packages supported on Bera...18.9 Unreal Engine C++ APIThe Unreal Engine C++ API is the primary programmatic surface of the engine. It is shipped as engine source...18.6 Aibee AR Navigation SDKAibee's all-scene AR indoor-wayfinding SDK for web and WeChat mini-programs, published with a full public r...18.4 Burp Suite Montoya Extension APIThe Java-based extension API for building custom Burp Suite extensions (BApps). The Montoya API is the curr...18.2 Framer Code Components APIAuthor custom React components with visual property controls (PropertyControls) so designers can use them o...18.1 Framer Plugin APIBuild small in-editor apps that interact with the Framer Editor and CMS. Plugins can read and modify the ca...18.1 Huly Platform SDKThe @hcengineering/api-client Node.js package provides typed programmatic access to the Huly Platform. It e...18.1 Rowy Firestore DataRowy tables map directly onto Google Cloud Firestore collections. Programmatic data access is not a Rowy-sp...18.1 PowerSync Flutter / Dart SDKClient SDK for Flutter and Dart applications providing embedded SQLite sync with Rust-backed native connect...18.0 PowerSync JavaScript / Web SDKClient SDK for JavaScript and browser environments using Wasm-backed SQLite. Provides a PowerSyncDatabase c...18.0 PowerSync Kotlin SDKClient SDK for Kotlin Multiplatform applications, enabling offline-first Android and cross-platform apps wi...18.0 PowerSync React Native SDKClient SDK for React Native and Expo applications, enabling offline-first mobile apps backed by embedded SQ...18.0 PowerSync Swift SDKClient SDK for Swift applications enabling offline-first iOS and macOS apps with embedded SQLite synced to ...18.0 Sierra Agent OSSierra Agent OS is the enterprise platform for building, deploying, and operating customer-facing AI agents...17.9 Stack Auth React / Next.js SDKFrontend SDK distributed as @stackframe/stack on npm. Provides React components, hooks, and Next.js App Rou...17.9 Atomic Transact SDKThe Transact SDK is the user-facing client that drives every Atomic flow — authentication, account selectio...17.8 Loom Record SDK APIEmbed Loom's recording experience directly into your web app. The recordSDK lets users record screen, mic, ...17.7 StackBlitz JavaScript SDKA lightweight (3kB gzipped) JavaScript SDK that lets developers programmatically create, open, and embed St...17.7 Cyber Library APICyber Library API as documented publicly: 31 operations. Contract generated from the documentation by API E...17.6 Testcontainers Open-Source LibrariesA family of open-source libraries providing a programmatic API for spinning up and tearing down Docker cont...17.5 syngo.via Frontier Development KitResearch-oriented SDK that lets clinicians, researchers, and developers turn research ideas into deployable...16.8 tldraw React SDKThe tldraw SDK is a React component library for embedding an infinite canvas with drawing tools, shapes, te...16.7 Sony Spresense SDKSpresense is Sony's hexa-core Cortex-M4F IoT board powered by the CXD5602 chipset. The Spresense SDK provid...16.6 Sudoswap SDK (sudo-defined-quoter)TypeScript/JavaScript SDK published on npm as sudo-defined-quoter that wraps the Defined (formerly Codex) A...16.5 Nori Teleoperation SDK@nori/sdk — robot-local teleoperation SDK. Connects to a Nori robot over WebRTC, receives video and telemet...16.1 PolyScope X URCap SDKThe PolyScope X URCap SDK is the TypeScript/HTML extension framework for Universal Robots' next-generation ...15.9 URCap SDK (PolyScope 5)The URCap SDK is the Java-based extension framework for PolyScope 5 that powers Universal Robots' UR+ ecosy...15.9 SanDisk HQME SDKThe SanDisk HQME (Home Quality Media Experience) SDK is based on the IEEE P2200/D2 draft standard for conte...15.3 SanDisk iXpand SDKThe SanDisk iXpand SDK enables third-party iOS application developers to access and manage iXpand Flash Dri...15.3 Tripo Python SDKOfficial Python SDK wrapping the Tripo OpenAPI. Provides synchronous and asynchronous clients, typed task h...15.2 Aave KitHigher-level toolkit (React + TypeScript + GraphQL) for embedding Aave market data and protocol actions int...14.9 Aave V3 SDKOfficial TypeScript SDK for Aave V3 that wraps protocol interactions — supply, borrow, repay, withdraw, swa...14.9 Aave V4 SDKOfficial TypeScript SDK for the Aave V4 protocol, exposing typed operations for supplying, borrowing, and r...14.9 aave-utilitiesTypeScript helper library exposing math, formatting, and contract-call helpers for building UIs and analyti...14.9 @excalidraw/excalidraw npm PackageThe official React component package for embedding the Excalidraw canvas. Provides programmatic control ove...14.6 Patronus Python SDKThe Patronus Python SDK provides decorators and clients for instrumenting LLM applications, running evaluat...13.9 Patronus TypeScript SDKThe Patronus TypeScript SDK brings the same evaluation, tracing, and experiment workflows to Node.js and br...13.9 Llama StackOpen-source framework standardizing the building blocks for Llama-based generative AI applications, includi...13.4 OnchainKit React SDKCore @coinbase/onchainkit npm package providing React components and TypeScript utilities for onchain apps....13.0 Balancer SOR SDKClient-side TypeScript / Solidity SDK for the Balancer Smart Order Router; constructs swap routes against c...12.9 connect-es (Connect for ECMAScript)Connect for ECMAScript provides type-safe browser and Node.js clients and Node.js servers from Protobuf sch...12.5 connect-goThe Go implementation of Connect. Provides server handlers and clients that speak the Connect, gRPC, and gR...12.5 connect-kotlinConnect for Kotlin provides type-safe clients for Android and JVM applications. Speaks the Connect protocol...12.5 connect-pythonConnect for Python (beta) provides Connect protocol and gRPC clients generated from Protobuf schemas. Targe...12.5 connect-swiftConnect for Swift provides type-safe Connect, gRPC, and gRPC-Web clients for iOS, macOS, watchOS, and tvOS ...12.5 ModiFace AR Virtual Try-On SDK and APIModiFace, a L'Oréal company, provides an augmented reality virtual try-on platform for beauty brands and re...12.4 Gretel Python Client SDKPython SDK and CLI (gretel-client) for interacting with Gretel APIs. Provides a high-level Gretel interface...11.9 Lens React SDKThe Lens React SDK provides React hooks (useAccount, usePosts, useFollow, useLogin, etc.) layered on top of...11.7 Lens TypeScript SDKThe Lens SDK is the official TypeScript client for the Lens API. It wraps GraphQL operations behind typed f...11.7 Cap'n Proto C++ Reference ImplementationThe C++ reference implementation is the canonical runtime for Cap'n Proto, providing the capnp compiler, se...11.6 Cap'n Proto Language BindingsCommunity-maintained language bindings implement Cap'n Proto serialization and, in many cases, the full RPC...11.6 qm-qua Python SDKOfficial Python SDK for the QUA pulse-level programming language. Provides the QuantumMachinesManager clien...11.4

Minimal 17 Almost no public developer surface

LastPass MFA SDKServer-side SDK for embedding LastPass MFA (push, biometric, TOTP) into custom cloud or on-prem application...9.1 Operator SDKThe Operator SDK provides tools for building Kubernetes operators. It includes scaffolding commands, code g...8.9 Avatar Neo SDKDeveloper SDK for high-fidelity 3D avatar generation from a single photo, delivered as Unreal and Unity eng...8.8 Honorlock Elements & Integration SDKBrowser-side Integration SDK and Elements UI components that embed the Honorlock exam-taker experience into...8.7 Keystatic Reader APIThe Reader API is a server-side Node.js library exposing createReader and createGitHubReader functions that...8.7 ORAS Client LibrariesClient libraries for building custom OCI artifact tools and integrations on top of ORAS, available across m...8.7 RLY Protocol Mobile ToolkitOpen-source web3 mobile toolkit exposed as first-party SDKs (React Native/Expo, Flutter, Unity) plus TypeSc...8.4 RACE ProtocolDeveloper guide and SDK/CLI surface for writing, publishing, and running WASM game bundles on the RACE Prot...8.2 Jane Digital Merchandising SDK (Jane DM SDK)The Jane DM SDK is a TypeScript/JavaScript library (usable in client-side React/Angular/Vue and server-side...8.1 pump-fun-sdk (Community TypeScript SDK)Open-source TypeScript SDK wrapping the Pump.fun Solana program - create-token, buy, sell, and bonding-curv...8.1 Hypersync SDKSDK for building custom Hypersync integrations that automate evidence collection from third-party systems.7.7 MorphCastWe expertly craft safe browser-processing, energy-efficient, accurate Emotion AI solutions to analyze facia...7.3 Defer PlatformThe Defer platform exposes a TypeScript SDK for declaring deferred functions and a managed control plane th...7.2 Maya C++ APIC++ API for high-performance Maya plugin development, providing low-level access to Maya internals through ...6.0 Fauna .NET DriverThe Fauna .NET Driver is the official client SDK for interacting with Fauna from C# and .NET applications. ...0.0 Fauna JavaScript DriverThe Fauna JavaScript Driver is the official client SDK for interacting with Fauna from JavaScript and TypeS...0.0 Fauna Python DriverThe Fauna Python Driver is the official client SDK for accessing Fauna from Python applications. It provide...0.0

Companies reaching this through an API (324)

These companies publish an API, specification or operation carrying “SDK” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Aave ABB Robotics Adobe Illustrator Adobe Photoshop AgentOps AgiBot Agnost AI AI21 Labs Akash Network Alliance Data Systems (Bread Financial Holdings) Altimate AI Amazon Connect Apache Arrow Apache Beam Apache Dubbo Apache Flume Apache Geode Apache Giraph Apache Guacamole Apache HBase Apache Helix Apache Hive Apache Hudi Apache Iceberg Apache Ignite Apache Jena Apexxfintech APIMatic Appian Apple CloudKit Arbitrum Arcjet Atla Atomic Authsignal Automation Anywhere Axelar Azure Event Hubs Balancer Band Protocol Barndoor Base BentoML Berachain Better Auth Biconomy Bifrost BillDesk Bloomberg Bloomberg News

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Bloomberg Professional Service Boomi Boston Dynamics Canva Canvas Medical Carbone Carto CI HUB Cisco Nexus Dashboard Clerk CloudEvents Clover Coinbase Comcast Convex Corva AI Cradlepoint craft CrawlCheck Crystal Reports CSG Systems cURL Cyber Library CyberConnect DataHub Dataiku Defer Didomi Discord Ditto Docling Dolby Dream Sports Dynamic EigenLayer Eko Health ElectricSQL Epic Games Esri Euler Finance Eventbrite EvolutionaryScale Excalidraw Factory Fasten Health Fauna Felt Fiddler Filecoin Flagsmith Formant Framer Freshdesk Freshworks Friendly Captcha Fusio Garmin Geneos Gladly Glia GlitchTip GMX Goldman Sachs Golioth Google Gemini Google Maps Platform Google Quantum AI GOV.UK Notify Gretel grovs Gusto Hanyang University HashiCorp Nomad hCaptcha Heidi Health Helium Network Helm HERE Honorlock Hotjar HubSpot Hyperliquid Hyperproof In-Toto InfluTo Iterable Jane (iHeartJane) Jitsi Jitterbit Jumio Kalshi Kanban Tool Kentico Koala Komodo Health Kubeflow Pipelines L'Oréal LanceDB LastPass Lens Protocol Leo1 Lightly Linea Linktree Linode Livepeer Llama Llamaindex Loom Lucent Lucidchart Lumos Make MangoBoost Manifold Mantle Network Mastercard MATLAB Maya Medusa Mezmo Microsoft Azure Quantum Microsoft Bot Framework Microsoft Endpoint Configuration Management Microsoft Power Apps Microsoft Word Modal Model Context Protocol (MCP) Moov MOSTLY AI Neo4j New Relic Nexad Nokia Nomba Nomic AI Nostr Notary Project Notional Finance Nutanix Obsidian Open OpenAI OpenHands OpenLLMetry OpenTelemetry Operator Framework Optimism Oracle Enterprise Manager Oracle Essbase ORAS OSIsoft PI System Pasqal Patronus AI Paytm Pendle Pendle Finance Phantom PhonePe Physical Capability Cloud Pinscreen Pipecat Planet Labs Planetscale Playable Polar Polygon ID Polymarket PortSwigger Postman Power Query PowerShell PowerSync Prefect Prizeout Promptfoo Pulumi Pump.fun Push Protocol QlikView Quantcast Quantum Machines QuEra Computing Ramp Network Red5 Refinitiv Refinitiv Eikon Resurface Roblox Rockwell Automation Roku Rowy Rubrik Runway Safe (Gnosis Safe) Saleor Salesforce Salla SAP BI Tools Scrapfly Sejda Sentry Shift4 Payments Shopify Storefront API Siemens Healthineers Siemens Insights Hub (MindSphere) Sierra Signal Sirius XM Snapchat SnapLogic Snowplow Sony Spree Commerce Squads Stack Auth StackBlitz Starknet Stigg Stytch Subversion Sudoswap SuperRare Surge AI Survicate Sybase Sync Labs Tableau Tally Teledyne Technologies Testcontainers Tidio TiKV Token.io Tradeweb Trieve Triplit Tripo AI Truework turbopuffer Typeform Union.ai Universal Robots University of Michigan-Ann Arbor University of Pennsylvania Unleash Vagrant Val Town Vantor Veeva Veritas Cluster Server Vim Vinkius Visteon VNC Vocode Voyage AI Wahoo Fitness WasmEdge WattTime Waze Weights and Biases what3words Wix Wormhole Wowza WSO2 Xerox XMTP Yarn ZenRows Zespan zkSync zSpace

Score breakdown

Frequency

76.1

log-scaled weighted occurrences

Breadth

5.4

spread across providers

Quality lift

27.7

mean composite of providers using it

Cohesion

15.0

strength of nearest seed neighbor

Where this tag sits

Developer Tools broader

Where this tag comes from

Provider tag417

Api tag647

Openapi tag18

Openapi op tag67

Cohort brief

Auto-generated

The 390 providers in the APIs.io catalog tagged SDK, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

390

of 417 in the catalog

Mean Kin Score

28.4

+4.3 vs catalog 24.1

Mean Agent Readiness

12.4

-1.7 vs catalog 14.1

Spread

0–78.1

median 25.3 · σ 16.7

How the 390 split by band

Exemplar 11Strong 21Developing 59Thin 97Emerging 153Minimal 49

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	43.9	24.5	+19.4	390
Operational Transparency	19.5	13.2	+6.3	390
Discoverability	61.5	59.1	+2.4	390
Contract Governance	10	9.7	+0.3	390
Access Clarity	28.9	30	-1.1	390
Contract Quality	16.4	18.6	-2.2	390

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	17%	18%	-1
MCP server (first-party)	16%	16%	0
Agent Skills	0%	0%	0
OAuth scopes	7%	13%	-6
Security	97%	99%	-2
Arazzo workflows	1%	1%	0
Governance rules	30%	36%	-6

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 Optimizely 78.1
2 Scalar 76.4
3 General Translation 75.3
4 Dwolla 75
5 Cvent Registration 73.6
6 Speakeasy 72.3
7 GitBook 71.5
8 linkbreakers-com 71.1
9 Clix 69.4
10 Fillo 67.5

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This tag

curl "https://apis.io/api/v1/tags/sdk"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort (paid plan)

The distribution (Pro)

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SDK

Providers using this tag (417)

APIs with this tag (652)