Feature

Single Sign-On

Enterprise SSO via SAML or OIDC identity providers.

83 providers 3729 APIs 75 declared variants

Users authenticate through a corporate identity provider rather than product-local credentials. A hard requirement for enterprise buyers and usually the gate on an enterprise plan.

83 API providers on the APIs.io network offer single sign-on. The highest-rated are Zapier, Notion, Asana, Postman, Plaid.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 21 Complete, well-documented, and agent-ready
Zapier Zapier is an automation platform that connects different apps and services to automate workflows without re... 13 APIs 79.3 Notion Notion is an all-in-one workspace that combines notes, tasks, wikis, and databases. The Notion API allows d... 6 APIs 79.1 Asana Asana is a web and mobile application designed to help teams organize, track, and manage their work. The As... 55 APIs 77.1 Postman Postman is the world's leading API platform, used by 35+ million developers to design, build, test, documen... 39 APIs 75.8 Plaid Plaid is a US financial-technology company and data-network aggregator that provides an API platform for bu... 31 APIs 75.2 Gitea Gitea is an open-source, self-hosted Git service and all-in-one DevOps platform written in Go and licensed ... 13 APIs 73.0 Unified.to Unified is a real-time unified API platform that provides access to over 360 integrations across 22 categor... 140 APIs 72.9 Buildkite Buildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with se... 23 APIs 71.8 GitHub The GitHub REST API allows developers to programmatically interact with GitHub resources including reposito... 350 APIs 71.3 Slack Slack is a cloud-based team collaboration platform that provides chat, file sharing, and integrations with ... 115 APIs 70.6 Commerce Layer Commerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m... 148 APIs 69.5 Affinda Affinda is an Intelligent Document Processing (IDP) platform that uses AI to extract structured data from d... 16 APIs 69.3 Microsoft Azure Microsoft Azure is a cloud computing platform and infrastructure for building, deploying, and managing appl... 1667 APIs 68.8 PropelAuth PropelAuth is a B2B SaaS authentication and multi-tenant user management platform purpose-built for organiz... 18 APIs 68.7 Raygun Raygun is an application monitoring platform that combines Crash Reporting, Real User Monitoring (RUM), and... 15 APIs 68.7 emnify emnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN... 29 APIs 68.3 Cobalt Traditional integrations are slow, fragmented, and hinder growth. Cobalt is changing that. A next-gen integ... 10 APIs 67.4 Didomi Didomi is a Paris-based consent and preference management platform (CMP/PMP) that helps publishers, adverti... 37 APIs 66.6 WorkOS WorkOS is the "Enterprise Ready" identity platform for B2B SaaS — providing AuthKit user management, enterp... 41 APIs 66.3 Amazon Managed Grafana Amazon Managed Grafana is a fully managed service for open source Grafana developed in collaboration with G... 3 APIs 66.2 Amazon Cognito Amazon Cognito is an AWS service that provides authentication, authorization, and user management for web a... 124 APIs 66.1
Strong 22 Solid coverage with minor gaps
Tray.ai Tray.ai (formerly Tray.io) is an AI-ready enterprise orchestration platform for data and AI, combining a Me... 12 APIs 65.4 PolyAPI Poly, built using cutting-edge AI and Kubernetes-native technology, accelerates development and simplifies ... 10 APIs 65.2 Amazon IAM Identity Center AWS IAM Identity Center (successor to AWS Single Sign-On) is where you create, or connect, your workforce i... 56 APIs 64.5 Nanonets Nanonets is a no-code document AI and OCR platform that combines a custom-model OCR API, pre-built document... 10 APIs 63.5 Amazon Migration Hub AWS Migration Hub provides a single location to track the progress of application migrations across multipl... 17 APIs 63.2 Zoom Zoom is a communications platform that allows users to connect with video, audio, phone, and chat. The Zoom... 47 APIs 63.2 CrewAI Cloud CrewAI Cloud (CrewAI AMP) is the managed Agent Management Platform for deploying, monitoring, scaling, and ... 6 APIs 62.9 PagerDuty PagerDuty is a digital operations management platform that helps teams detect problems and resolve incident... 38 APIs 62.6 Barndoor Barndoor AI is the control plane for agentic AI, providing secure access and governance for AI agents and M... 13 APIs 62.1 CircleCI CircleCI is a continuous integration and continuous delivery (CI/CD) platform that automates software build... 18 APIs 62.1 Heidi Health Heidi Health is a Melbourne, Australia-founded AI care partner for clinicians, founded in 2019 by Dr. Tom K... 11 APIs 62.0 Amazon CodeGuru Reviewer Amazon CodeGuru Reviewer is an automated code review service that uses machine learning and AWS best practi... 5 APIs 61.4 Deel Deel is a global workforce platform combining payroll, Employer of Record (EOR), independent contractor man... 39 APIs 61.3 Runway Runway is an applied AI research company that builds generative AI tools for creative professionals. Their ... 16 APIs 61.2 Google Quantum AI Google Quantum AI is Google's quantum-computing research and engineering arm, building superconducting quan... 15 APIs 61.1 Elastic.io Elastic IO is a cloud-based integration platform that helps businesses effortlessly connect their various a... 22 APIs 61.0 Vespa Vespa is an open-source AI search engine, big-data serving engine, and vector database originally developed... 9 APIs 59.9 Microsoft Collection of Microsoft's primary APIs and developer resources. 59 APIs 59.1 Zitadel Zitadel is an open source identity infrastructure platform providing secure authentication and user managem... 11 APIs 58.6 Microsoft Azure Active Directory Microsoft Azure Active Directory (Azure AD), now Microsoft Entra ID, is Microsoft's cloud-based identity an... 12 APIs 58.5 Interswitch Interswitch is Nigeria's foundational digital payments and transaction-switching company, founded in 2002 a... 32 APIs 58.0 Shippo Shippo provides a robust shipping API architecture that helps developers drive efficiency at scale. The Shi... 9 APIs 56.4
Developing 22 Usable, with meaningful gaps to close
Microsoft Azure Cloud A comprehensive collection of Microsoft Azure cloud service APIs covering compute, storage, databases, AI, ... 13 APIs 55.9 Supabase Supabase is an open-source Firebase alternative that provides a suite of backend services built on top of P... 21 APIs 55.8 Amazon Amplify AWS Amplify is a set of tools and services for building secure, scalable full-stack applications powered by... 1 API 55.1 Heap Heap is a digital analytics platform that automatically captures every user interaction on web and mobile a... 10 APIs 53.7 Apache Knox Apache Knox is a REST API and application gateway for the Apache Hadoop ecosystem. It provides a single acc... 4 APIs 52.8 Azure Active Directory Microsoft's cloud-based identity and access management service that helps employees sign in and access reso... 6 APIs 51.1 Qdrant Qdrant is a vector similarity search engine that provides a production-ready service with a convenient API ... 9 APIs 50.5 Grafana Grafana Labs builds the open and composable observability stack used by millions of engineers to visualize,... 20 APIs 50.0 honeycomb Build integrations and automate workflows with the Honeycomb API. Programmatically manage datasets, queries... 22 APIs 49.0 Lunar Energy Lunar Energy is a Mountain View, California-based residential clean-energy company founded in August 2020 b... 14 APIs 48.9 Descope Descope is a customer and agentic identity access management (CIAM) platform founded in 2022 by veterans of... 16 APIs 48.2 trello Trello is a web-based, kanban-style, list-making application that allows users to organize tasks, projects,... 16 APIs 47.4 clickup Work with tasks using the ClickUp API. 13 APIs 47.0 Casdoor Casdoor is an open-source, AI-first identity and access management (IAM) and MCP gateway authentication ser... 15 APIs 46.9 Zero Trust Network Access Zero Trust Network Access (ZTNA) is a security framework and product category that grants access to private... 12 APIs 46.9 Apache HBase Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's Bigt... 5 APIs 46.6 Humaans Humaans is a London-headquartered modern HRIS (Human Resources Information System) for fast-growing, distri... 15 APIs 46.5 Calm Calm is an American digital wellness company headquartered in San Francisco that builds a mobile and web ap... 2 APIs 46.0 Incident.io incident.io is an incident management platform that helps teams declare, manage, and learn from incidents. 25 APIs 45.2 Argo CD Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes that automates the deployment of a... 13 APIs 44.4 launchdarkly LaunchDarkly is a feature management platform that enables development teams to deliver and control softwar... 27 APIs 44.0 bugsnag Bugsnag is an application stability monitoring platform that helps software teams detect, diagnose, and fix... 16 APIs 43.1
Thin 12 Limited public surface area
Authelia Authelia is an open source authentication and authorization server providing multi-factor authentication an... 3 APIs 40.4 Apache NiFi Apache NiFi is a dataflow management system designed to automate the flow of data between systems. It provi... 6 APIs 39.0 Qlik Sense APIs Collection of APIs for Qlik Sense, a business intelligence and visual analytics platform. Qlik provides RES... 13 APIs 38.4 QlikView QlikView is a business intelligence and data visualization platform that enables users to create guided ana... 10 APIs 36.9 Acadia Acadia is a Connected Worker Platform designed for employee productivity, acquired by Epicor. It delivers d... 5 APIs 35.0 Autodesk PowerMill Autodesk PowerMill is a leading CAM (Computer-Aided Manufacturing) software solution for high-speed and 5-a... 3 APIs 33.1 BB&T Corp (Truist) BB&T Corporation was a major financial services holding company that merged with SunTrust Banks in December... 5 APIs 31.7 Riskified Riskified (NYSE RSKD) is an Israeli ecommerce risk-management platform that uses machine learning and a glo... 7 APIs 31.7 AWS CLI The AWS Command Line Interface (AWS CLI) is a unified tool to manage AWS services from the command line. Wi... 1 API 31.2 NHS England Digital NHS England (incorporating the former NHS Digital and NHSX) provides national digital, data, and technology... 7 APIs 30.9 Blynk Blynk is a low-code / no-code IoT software platform that helps companies prototype, deploy, and remotely ma... 3 APIs 29.8 Factory Factory is an agent-native software development platform whose Droids act as autonomous AI engineers that p... 3 APIs 29.2
Emerging 3 Early or largely undocumented
Apache MADlib Apache MADlib is an open-source library for scalable in-database analytics. It provides data-parallel imple... 1 API 22.5 Beamy Beamy is a SaaS discovery and governance platform that helps organizations identify unauthorized cloud appl... 1 API 22.2 CMA CGM CMA CGM is a Marseille-headquartered French container shipping, logistics, and port operator and the third-... 6 APIs 14.0
Minimal 3 Almost no public developer surface
Catena-X Catena-X is the automotive industry's data space standard, published by Catena-X Automotive Network e.V. — ... 11.2 Centric Brands Centric Brands LLC is a New York-headquartered global lifestyle brand management and product-development pl... 8.6 MISMO MISMO — the Mortgage Industry Standards Maintenance Organization — is the standards development body for US... 8.5

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.

API calls not associated with labels billed at API Starter ratesAWS SSO SupportAccessories GroupAssociation RulesAssociation ServicesAssociation members: 197 as of 01 July 2026Associative Data ModelAssociative EngineAuth (email/password, OAuth, magic links, SAML SSO)Authentication And SSOBlynk.NCP — network co-processor reference designBusiness at $12/user/mo with dashboards, automations (5K/mo), Google SSOBusiness at $18.33/user/mo with 300 participants, SSO, managed domainsBusiness at $20/member/mo with Notion Agent, SAML SSO, AI Meeting NotesBusiness+ at $15/user/mo with SSO, compliance, full AICard 360 — issuer-processor card management for Verve, debit, and prepaid cards (create, PIN, block, link, balance)Container API for custom searchers, document processors, and handlersCoprocessorsDomain AssociationEnterprise SSO via SAML and OIDC with self-service per-organization setup (Okta, Entra ID, etc.)Enterprise SSO, SAML/SCIM, Zero Data Retention, on-prem deployEnterprise at $17.50/user/mo: org-wide permissions, SSO via Atlassian GuardEnterprise custom: SAML/SCIM, custom roles, release automationEnterprise features including SSO, centralised billing, custom hosting, dedicated CSMEnterprise: SAML/SCIM, capacity planning, AI Studio (200K credits)Enterprise: SSO, custom org spaces, Workspace AnalyticsFounding member of the Digital Container Shipping Association (DCSA) — APIs align with DCSA standardsFree: 10K monthly sessions, 6 months history, SSOHost: Mortgage Bankers Association; MISMO founded 1999, MBA subsidiary since 2004Hundreds of Built-in ProcessorsIdentity Provider IntegrationMicrosoft Entra ID AuthenticationNHS Login Identity ProviderOIDC and OAuth Token Exchange (RFC 8693) for short-lived API tokens from identity providersPartner SAML 2.0 IdP-initiated SSO with unique SubjectNameIdPay-as-you-go default; Growth tier with discounts and SSOPost-Processor SupportPre-built integrations across Payroll (Remote, Oyster, Papaya Global, Symmetrical, Payap, PayCaptain, Salary), Identity (Okta, JumpCloud, Microsoft Entra ID, Google SSO, SAML), Compliance (Vanta, Drata, Secureframe), Finance (Carta, Pulley, Pleo, Spendesk, Moss, Ramp, Pave, Ravio, Figures, Ledgy, Mesh Payments, Cledara), ATS (Greenhouse, Lever, Workable, Ashby, Teamtailor, Gem, Pinpoint, Manatal), Performance (Lattice, CultureAmp, Leapsome, Workvivo, Eletive, Officevibe, Frankli, Appraisd), Calendar/Comms (Google Calendar, Slack), eSignature (Docusign, Contractbook), Benefits (Ben, Assembly, Bonusly, Goody, Kota, Happl, CakeDrop), Learning (Sana Labs, WorkRamp, Ethena), Automation (Zapier), People Analytics (ChartHop, Insightful)Premium: SSO, private VPC, 99.9% SLAPro $1,250/mo: 1.25M API calls, SAML SSO, secrets manager

Showing 40 of 75 declared variants