Feature
REST API
Resource-oriented HTTP API over standard verbs.
188 providers
1669 APIs
165 declared variants
A RESTful HTTP interface with predictable resources, verbs, and status codes. Still the default integration surface and the one with the broadest client and tooling support.
188 API providers on the APIs.io network offer rest api. The highest-rated are Messagebird, Salesforce, HubSpot, Braze, Close.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 29 Complete, well-documented, and agent-ready
MessagebirdMessageBird, which trades as Bird, is a Dutch cloud communications company whose platform carries email, SM...SalesforceSalesforce is a cloud-based customer relationship management (CRM) platform that provides a comprehensive s...HubSpotHubSpot is an AI-native customer platform built around the Smart CRM, unifying marketing, sales, customer s...BrazeBraze is a leading customer engagement platform providing REST APIs for managing user profiles, orchestrati...CloseClose is an inside-sales CRM with calling, email, SMS, and WhatsApp built in. The Close API exposes leads, ...AdobeAdobe provides APIs and developer resources for its creative, document, and experience cloud platforms. Dev...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...TwilioCloud communications platform providing APIs for SMS, voice, video, and authentication services. Twilio off...TrelloTrello is a web-based, kanban-style, list-making application from Atlassian that lets teams organize tasks,...JiraAPIs for Atlassian Jira project management and issue tracking platform.Constant ContactConstant Contact is a small-business email and digital marketing platform offering email campaigns, automat...IterableIterable is an AI customer engagement platform that powers unified cross-channel marketing experiences and ...GiteaGitea is an open-source, self-hosted Git service and all-in-one DevOps platform written in Go and licensed ...SendcloudSendcloud is Europe's leading shipping platform for e-commerce, headquartered in Eindhoven, Netherlands. Th...CloudflareCloudflare is a global network designed to make everything you connect to the Internet secure, private, fas...ClickupClickUp is a work management platform — tasks, Lists, Folders, Spaces, Docs, Chat, Goals, time tracking, da...AuthentikAuthentik is an open source identity provider from Authentik Security Inc., a public benefit company, expos...falfal (Features and Labels, Inc.) is a generative media platform providing the world's fastest API for runnin...Qlik SenseQlik Sense and Qlik Cloud from Qlik Parent, Inc. — a business intelligence, data integration and AI analyti...AdyenAdyen is a global payment company that provides businesses with a single platform to accept payments from c...Amazon API GatewayAmazon API Gateway is a fully managed service that makes it easy to create, publish, maintain, monitor, and...DocusignDocuSign helps organizations connect and automate how they prepare, sign, act on, and manage agreements. As...NetlifyNetlify is a cloud platform for building, deploying and scaling modern web applications, with continuous de...BitbucketBitbucket is a Git-based source code repository hosting service owned by Atlassian offering both commercial...MoovMoov is a financial infrastructure platform that enables developers to embed money movement capabilities di...ConfluenceAPIs for Atlassian Confluence - team collaboration and knowledge management software.UserGemsUserGems is a San Francisco-based sales intelligence platform that tracks champion job changes and surfaces...AsanaAsana is a web and mobile application designed to help teams organize, track, and manage their work. The As...
Strong 41 Solid coverage with minor gaps
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...CumulocityCumulocity is an enterprise AIoT (Artificial Intelligence of Things) platform that connects, manages, and a...FastlyFastly is an edge cloud platform that helps customers create great digital experiences quickly, securely, a...AtlassianAtlassian is a software company that develops collaboration, productivity, and project management tools to ...GoToWebinarGoToWebinar is GoTo's (formerly LogMeIn) webinar and virtual event platform. The GoToWebinar REST API lets ...IBM QuantumIBM Quantum is IBM's quantum computing program — the operator of the IBM Quantum Platform (quantum.cloud.ib...n8nn8n is a fair-code workflow automation and iPaaS platform with AI-agent tooling. It exposes an instance-sco...Unified.toUnified is a real-time unified API platform that provides access to over 360 integrations across 22 categor...SocureSocure is the leading vertically-integrated digital identity verification and fraud-prevention platform, us...Dolby.ioDolby.io (now branded as Dolby OptiView) is Dolby Laboratories' developer platform for media, streaming, co...AnkrAnkr is a Web3 infrastructure provider whose multichain RPC, Advanced API, liquid staking, contract automat...ThingsBoardThingsBoard is an open-source IoT platform for device connectivity, data collection, processing, and visual...AirtableAirtable is a cloud-based collaboration service that combines the simplicity of a spreadsheet with the comp...D-WaveD-Wave Quantum Inc. (NYSE: QBTS) is the leader in commercial quantum annealing computing and developer of t...BoxBox is a cloud content management and file sharing service for businesses. Box provides a secure platform f...NotionNotion is an all-in-one workspace that combines notes, tasks, wikis, and databases. The Notion API allows d...AppianAppian is a low-code automation platform that accelerates the creation of high-impact business applications...FreestyleFreestyle is the infrastructure for code you didn't write — VMs and Git for AI agents. The platform provide...Oracle E-Business SuiteA collection of APIs for Oracle E-Business Suite (EBS), Oracle's comprehensive suite of integrated, global ...Ant MediaAnt Media Server is a scalable, open-source media server for ultra-low latency live streaming and WebRTC-ba...RocketReachRocketReach is a Seattle-based B2B contact data and sales intelligence provider that maintains a database o...BringgBringg is a last-mile delivery and fulfillment orchestration platform headquartered in Tel Aviv (founded 20...emnifyemnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN...BigCommerceBigCommerce is a leading e-commerce platform providing APIs for building and managing online stores, produc...FigmaFigma is a collaborative interface design tool with a comprehensive REST API for accessing and manipulating...IonQIonQ (NYSE IONQ) is a College Park, Maryland-based public trapped-ion quantum computing company. IonQ desig...FilevineFilevine is the leading legal case management and operating intelligence platform for plaintiff, personal-i...ZohoZoho is a comprehensive cloud software suite offering 55+ integrated business applications for sales, marke...PayPalPayPal is a global online payment system that lets individuals and businesses send and receive money electr...DatabricksCollection of Databricks REST APIs for managing workspaces, clusters, jobs, and data operations.US Census BureauThe U.S. Census Bureau is the federal statistical agency responsible for producing data about the American ...SinchSinch is a cloud communications platform providing APIs for SMS, voice, video, fax, verification, and omnic...Track-PODTrack-POD is a cloud-based delivery management platform that combines route planning and optimization with ...VercelVercel is a cloud platform that helps developers build, deploy, and scale modern web applications quickly a...SourcepointSourcepoint is a New York City-headquartered enterprise privacy and consent management technology company f...Octopus EnergyOctopus Energy is a UK-founded retail energy supplier and the parent of Kraken Technologies, the AI-powered...AppleCollection of Apple's public APIs and developer resources.Beatoven.aiBeatoven.ai is an Indian generative-music startup (Bengaluru, founded 2021) building text-to-music and text...PipedreamPipedream is a developer-centric integration platform providing three product lines: Workflows (code-level ...ThoughtlyThoughtly is an AI voice and chat agent platform that helps revenue and support teams contact every lead ac...PipedrivePipedrive is a sales CRM and pipeline management tool focused on small and mid-market teams. The Pipedrive ...
Developing 73 Usable, with meaningful gaps to close
Cloudflare AI GatewayCloudflare AI Gateway is a managed LLM proxy that sits in front of 23+ AI providers (OpenAI, Anthropic, Goo...ZoomZoom is a communications platform that allows users to connect with video, audio, phone, and chat. The Zoom...BandwidthBandwidth is a leading cloud-based communications platform providing voice, messaging, emergency calling, p...BallerinaBallerina is an open-source programming language for the cloud, created and maintained by WSO2, whose type ...IntercomIntercom is an AI-powered customer service platform that enables businesses to build seamless customized ex...FlickrFlickr is the long-running photo, group, people, place, tag, gallery, photoset, and Commons platform now ow...LivepeerLivepeer is a decentralized video infrastructure network. Independent orchestrators run GPU hardware to pro...WherebyWhereby is an embeddable video API plus standalone meetings product that lets developers add browser-based,...1NCE1NCE is a Cologne-headquartered global IoT connectivity provider best known for the IoT Lifetime Flat — a s...RunwayRunway is an applied AI research company that builds generative AI tools for creative professionals. Their ...FactorialFactorial is an all-in-one HR, payroll, time, talent, finance, and IT management platform headquartered in ...ServiceTitanServiceTitan is the operating system for the trades — all-in-one field service management software for resi...UbiquitiUbiquiti Inc. (NYSE: UI) is an American networking technology company that designs and sells wireless and w...AmadeusAmadeus for Developers is the self-service developer program from Amadeus IT Group, the leading technology ...ShippoShippo provides a robust shipping API architecture that helps developers drive efficiency at scale. The Shi...CrewAI CloudCrewAI Cloud (CrewAI AMP) is the managed Agent Management Platform for deploying, monitoring, scaling, and ...PinterestPinterest is an American image sharing and social media service designed to enable saving and discovery of ...Housecall ProHousecall Pro is an all-in-one home services business management platform headquartered in Denver, Colorado...RenderRender is a cloud platform for building and running applications and websites with automatic Git-based depl...FOREX.comFOREX.com is a regulated forex and CFD trading broker (a brand of StoneX Group) offering REST and FIX APIs ...VesselFinderVesselFinder is a maritime intelligence company operating a global AIS vessel-tracking network (terrestrial...ContinueContinue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The ...Bloomberg AIMBloomberg's Asset and Investment Manager (AIM) is a comprehensive buy-side solution offering global, multi-...CircleCICircleCI is a continuous integration and continuous delivery (CI/CD) platform that automates software build...WooCommerceWooCommerce is the world's most popular open-source eCommerce platform, built on WordPress. It provides a c...VTEXVTEX is a global enterprise digital commerce platform that provides end-to-end solutions for businesses to ...FrontFront is a customer operations platform unifying shared inboxes, chat, SMS, social, and CRM workflows. Fron...LineaLinea is ConsenSys' ZK-EVM Layer 2 network built on Ethereum, offering low fees, fast finality, and full EV...PhonelyPhonely is an AI voice agent platform that answers business phone calls in real time with large-language-mo...OpsGenieOpsGenie is an incident management and alerting platform, now part of Atlassian, that helps operations team...Heidi HealthHeidi Health is a Melbourne, Australia-founded AI care partner for clinicians, founded in 2019 by Dr. Tom K...Triton OneTriton One is a high-performance Solana RPC and blockchain infrastructure provider operating globally distr...DeepgramDeepgram is an enterprise voice AI platform that provides speech-to-text, text-to-speech, and voice agent A...Workday StudioWorkday Studio is an integrated development environment (IDE) for building custom integrations and applicat...Help ScoutHelp Scout is an email-first help desk platform with shared inboxes, live chat, knowledge bases, and a cust...Juniper Mist AIJuniper Mist AI is the AI-driven enterprise networking platform that powers Juniper Networks' AI-Native Net...Scale AIScale AI is the data engine for AI. The company turns raw data into training data by combining ML-powered p...Jito LabsJito Labs is the Solana MEV infrastructure company behind Jito-Solana, the MEV-enabled validator client tha...PagerDutyPagerDuty is a digital operations management platform that helps teams detect problems and resolve incident...MeilisearchMeilisearch is an open source, lightning-fast search engine API that brings AI-powered hybrid search to sit...ApimanApiman is an open source API management platform featuring a REST API, manager UI, and standalone developer...Apache AirflowApache Airflow is an open-source platform to programmatically author, schedule, and monitor workflows, deve...DiscordDiscord is a voice, video and text communication service used by hundreds of millions of people to hang out...WordPressWordPress is an open-source content management system (CMS) that powers a significant portion of websites o...Apache OFBizApache OFBiz is an open-source enterprise resource planning (ERP) system providing a suite of integrated bu...CoolifyCoolify is an open-source, self-hostable Platform-as-a-Service alternative to Vercel, Heroku, Netlify, and ...PokéAPIPokéAPI (pokeapi.co) is a free, open-source RESTful and GraphQL API serving comprehensive Pokémon data — in...CflowCflow is a cloud-based workflow automation platform that helps organizations streamline and optimize busine...Oracle APEXOracle Application Express (APEX) is a low-code development platform that enables you to build scalable, se...NOAA — National Oceanic and Atmospheric AdministrationThe National Oceanic and Atmospheric Administration (NOAA) is the United States scientific and regulatory a...UnkeyUnkey is the developer platform for modern APIs, providing globally distributed API key management, rate li...RollbarRollbar is a real-time error tracking and monitoring platform for software teams. It automatically captures...CopperCopper is a CRM platform built natively for Google Workspace, designed to help teams cultivate enduring cli...OpenHandsOpenHands (by All Hands AI, formerly OpenDevin) is an open-source autonomous coding agent platform. Ships a...DropboxDropbox is a file hosting service operated by the American company Dropbox, Inc., headquartered in San Fran...FreshworksFreshworks is a software company that develops cloud-based business software including customer support, IT...LoadsmartLoadsmart is a digital freight technology company and 4PL that connects shippers, carriers, warehouses, and...Apache AirflowApache Airflow is an open-source platform to programmatically author, schedule, and monitor workflows. Airf...PandaDocPandaDoc is a document automation platform that enables businesses to create, send, track, and e-sign docum...Apache NutchApache Nutch is a highly extensible and scalable open-source web crawler software project built on Apache H...CHAOSSCHAOSS (Community Health Analytics in Open Source Software) is a Linux Foundation project that develops met...commercetoolscommercetools is the leading composable, headless, API-first Commerce platform powering large-scale B2C, B2...SupabaseSupabase is an open-source Firebase alternative that provides a suite of backend services built on top of P...ActivepiecesActivepieces is an open-source, no-code automation platform that enables users to streamline workflows by c...Cisco Nexus DashboardAPIs for managing and monitoring Cisco Nexus data center switches and network infrastructure.Stability AIStability AI is an AI company that develops open-source generative AI models for image, audio, video, and l...Apache HBaseApache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's Bigt...HeapHeap is a digital analytics platform that automatically captures every user interaction on web and mobile a...LangflowLangflow is an open-source low-code visual builder for AI agents, RAG pipelines, and LangChain-based workfl...AnchoreAnchore is a container and software supply chain security company providing open source and enterprise tool...Apache NiFiApache NiFi is a dataflow management system designed to automate the flow of data between systems. It provi...Apache HelixApache Helix is a generic cluster management framework for partitioned and replicated distributed resources...Tableau DesktopAPIs and integration points for Tableau Desktop, a data visualization and business intelligence platform fr...
Thin 32 Limited public surface area
Ship24Ship24 is a universal shipment tracking platform that consolidates 1,500+ couriers and marketplaces into a ...MarqoMarqo is an open-source, multimodal vector search engine that lets developers index text and images, genera...Apache JamesApache James (Java Apache Mail Enterprise Server) is a portable and enterprise-ready mail server built enti...Chaos MeshChaos Mesh is a CNCF graduated cloud-native chaos engineering platform that orchestrates chaos experiments ...Veritas InfoScaleAPIs for Veritas InfoScale, an enterprise storage and availability management solution that provides high a...Apache CloudStackApache CloudStack is an open-source cloud computing platform developed by the Apache Software Foundation fo...LeverLever is a talent acquisition and applicant tracking platform built on the Opportunities data model. The Le...ElasticElastic is a software company that builds search-powered solutions for observability, security, and search ...Surge AISurge AI is a human-data company that provides large-scale, expert-quality labeled data for training and ev...United States Postal ServiceThe United States Postal Service (USPS) provides a modern REST API platform at developers.usps.com that giv...Apache HiveApache Hive is a data warehouse software that facilitates reading, writing, and managing large datasets res...Black KnightBlack Knight, Inc. was a Jacksonville-based mortgage technology and data provider whose core franchises wer...Apache OozieApache Oozie is a workflow scheduler system for managing Apache Hadoop jobs. It enables users to define wor...Lemon SqueezyLemon Squeezy is on a mission to make selling digital products easy-peasy. We know first-hand the challenge...PaysafePaysafe is an integrated payment platform providing businesses with REST APIs for online payments, digital ...AvaloqAvaloq is a leading provider of wealth management technology and digital banking solutions, offering over 7...GreenlyGreenly is a Paris-headquartered (with offices in London and New York) carbon accounting platform focused o...Apache OpenMeetingsApache OpenMeetings is a web conferencing and collaboration tool that provides video conferencing, instant ...Agilent TechnologiesAgilent Technologies is a global leader in life sciences, diagnostics, and applied chemical markets, provid...Apache LivyApache Livy is a service that enables easy interaction with a Spark cluster over a REST interface. It allow...APIs.guruAPIs.guru is an open source, community-driven directory of public REST API definitions in OpenAPI 2.0/3.x f...Absence.ioAbsence.io is an innovative and efficient leave management software that simplifies the process of tracking...Apache FlumeApache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and...SourcegraphSourcegraph is a code intelligence platform that lets developers and AI agents search, navigate, understand...Apache FlinkApache Flink is a framework and distributed processing engine for stateful computations over unbounded and ...AgentQLAgentQL connects LLMs and AI agents to the entire web through a specialized query language, REST API, and P...BMW ConnectedDriveBMW ConnectedDrive is BMW Group's umbrella for connected vehicle services spanning navigation, remote servi...Apache AtlasApache Atlas is a scalable and extensible set of core foundational data governance services developed by th...Incident.ioincident.io is an incident management platform that helps teams declare, manage, and learn from incidents.FawryFawry is Cairo-based Egypt's leading provider of e-payments and digital finance solutions, operating a nati...Adaptive ShieldAdaptive Shield (now CrowdStrike Falcon Shield) is a SaaS Security Posture Management (SSPM) platform that ...Apache OpenWhiskApache OpenWhisk is an open-source serverless cloud platform that executes functions in response to events ...
Emerging 12 Early or largely undocumented
ChainguardChainguard builds, secures, and maintains a catalog of hardened, minimal container images and software supp...Shelf.ioShelf.io is the first knowledge automation platform and next-generation AI agentic platform for knowledge m...FortoForto is a digital freight forwarder and supply chain platform that combines technology with logistics expe...QuEra ComputingQuEra Computing is a Boston-based neutral-atom quantum computing company (founded 2018) that operates Aquil...Apache SlingApache Sling is a RESTful web framework built on top of the Java Content Repository (JCR) standard. It maps...HPE Aruba NetworkingHPE Aruba Networking is the networking business unit of Hewlett Packard Enterprise (NYSE HPE), born of Arub...ABB RoboticsABB Robotics is the robotics and discrete-automation business of ABB Ltd, the Swiss-Swedish multinational h...Arthur J. GallagherArthur J. Gallagher & Co. is a global insurance brokerage, risk management, and consulting firm headquarter...PasqalPasqal is a French neutral-atom quantum computing company headquartered in Palaiseau, France and co-founded...HostfullyHostfully is a San Francisco-based short-term rental (STR) property management platform serving vacation re...CHAMP CargosystemsChamp.aero, also known as CHAMP Cargosystems, is a company that provides comprehensive IT solutions for the...CMA CGMCMA CGM is a Marseille-headquartered French container shipping, logistics, and port operator and the third-...
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.
1NCE Customer Portal at portal.1nce.com with the same management surface available through the REST API24 published REST API surfaces covering CRM, JPM, Dispatch, Accounting, Pricebook, Inventory, and more40+ Travel REST APIs409 REST endpoints across 59 controllers exposed via OpenAPI 3.1 (live spec at /v3/api-docs)50+ REST APIs67 REST endpoints covering flows, builds, projects, files, users, API keys, MCP servers, monitoring, and traces71 documented REST endpoints across the 5 specs (60 LLM-ready, 5 Extract, 3 NERD, 1 Scribe v1, 2 Scribe v2)7500+ REST API EndpointsAOS-CX — modern data-center / campus switch operating system with full on-box REST API and YANG modelsAccess is gated through commercial licensing and the my.schrodinger.com customer portal; no self-serve public REST API and no public developer signupAsynchronous task-based REST API with status polling (composing / running / composed)Bearer-token auth (Authorization header) for all REST APIsChannels, Ingests, Engines, Distributions resource model with full REST and GraphQL surfacesCommand Centre REST APIComprehensive REST APIContinue Hub IDE API (api.continue.dev) with 8 REST endpoints under /ide for assistants, organizations, policy, free-trial, secrets, and checkoutCore REST API covering inventory, identity, measurements, events, alarms, device control, device bootstrap, tenants, users, applications, audit, retention, and real-timeCustomers REST API at customers.triton.one for accounts, subscriptions, endpoints, tokens, watch listsDCSA Track & Trace v2.2.0 REST API (Public API Key + Private OAuth2 tiers)DME Object Model REST APIDeployment REST APIERDDAP servers across CoastWatch, NCEI, IOOS, and line offices — unified gridded/tabular access via griddap and tabledap REST endpointsFrontend REST API for agent management with X-Authorization API key authGreenly Carbon Analytics REST API for fintech transaction enrichmentHeidi API — public REST API at registrar.api.heidihealth.com for sessions, transcription, consult notes, documents, coding, Ask HeidiHypermedia-Driven REST API (HAPI)ID+ unified multi-module REST API — pass `modules` array in one request to combine KYC, fraud, risk, and document verificationLiquid Staking RESTful metrics API (https://api.staking.ankr.com/v1.0/metrics)Livepeer Studio managed REST API with Bearer authLocal desktop GUI with REST APIMSP DX REST APIsMethod-Dispatched REST APIModern REST APIMonitoring REST APINo public QuEra-operated REST API — programmatic access is via AWS Braket task API and Bloqade SDKsOn-demand REST endpoints for vessel positions (Vessels), port arrivals/departures (PortCalls), and expected arrivals (ExpectedArrivals)Outbound REST API for contact and account submission with up to 100 custom signal fields per contactOver 1,700 datasets exposed via a single REST API base (api.census.gov/data)PDF creation, conversion, and manipulation via REST APIPasqal Cloud Services REST API
Showing 40 of 165 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.