Best API Marketplaces

Zapier is an AI-powered automation platform designed to help teams safely scale workflows, agents, and AI-driven processes. It connects over 8,000 apps into a single ecosystem, allowing businesses to automate work across tools without writing code. Zapier enables teams to build AI workflows, custom AI agents, and chatbots that handle real tasks automatically. The platform brings AI, data, and automation together in one place for faster execution. Zapier supports enterprise-grade security, compliance, and observability for mission-critical workflows. With pre-built templates and AI-assisted setup, teams can start automating in minutes. Trusted by leading global companies, Zapier turns AI from hype into measurable business results.

Datadog is the monitoring, security and analytics platform for developers, IT operations teams, security engineers and business users in the cloud age. Our SaaS platform integrates and automates infrastructure monitoring, application performance monitoring and log management to provide unified, real-time observability of our customers' entire technology stack. Datadog is used by organizations of all sizes and across a wide range of industries to enable digital transformation and cloud migration, drive collaboration among development, operations, security and business teams, accelerate time to market for applications, reduce time to problem resolution, secure applications and infrastructure, understand user behavior and track key business metrics.

Integrately helps you in automating your manual tasks in just a click. It is built for business, professionals and owners who wish to automate their processes quickly and easily. No need to hire coders! Just select your apps and choose from over 250K+ ready to use 1 click integrations and activate them and you are good to go! With Integrately, you can integrate apps like Salesforce, Google, Hubspot, and Facebook to move your data automatically and thus save your precious time and money. Search from 250,000+ fully ready integrations, and activate them in 1 click! Ready mappings, no steps to perform, nothing to learn, isn't that awesome? Send marketing leads to your CRM. Add your leads/purchases to spreadsheet. Update meetings in CRM & Google calendar. When Deal is won, notify via Email/Slack. Automatically create invoices in Quickbooks. Integrately has zero learning curve, you can connect your apps in next 5 minutes.

IBM API Connect is a scalable API solution that helps organizations implement a robust API strategy by creating, exposing, managing and monetizing an entire API ecosystem across multiple clouds. As businesses embrace their digital transformation journey, APIs become critical to unlock the value of business data and assets. With increasing adoption of APIs, consistency and governance are needed across the enterprise. API Connect aims to help businesses to get new features to market fast, maintain continuous availability, meet changing user needs, and spur innovation.

Cyclr is an embedded integration toolkit (embedded iPaaS) for creating, managing and publishing white-labelled integrations directly into your SaaS application. With a low-code, visual integration builder and a fully featured unified API for developers, all teams can impact integration creation and delivery. Flexible deployment methods include an in-app Embedded integration marketplace, where you can push your new integrations live, for your users to self serve, in minutes. Cyclr's fully multi-tenanted architecture helps you scale your integrations with security fully built in - you can even opt for Private deployments (managed or in your infrastructure). Accelerate your AI strategy by Creating and publishing your own MCP Servers too, so you can make your SaaS usable inside LLMs. We help take the hassle out of delivering your users' integration needs.

Choreo is an internal developer platform designed to accelerate the creation of digital experiences. With Choreo, you can effortlessly build, deploy, monitor, and manage your cloud native applications. Choreo enhances developer productivity and enables innovation. Choreo can be used for: - Cloud native application development - DevOps - API management - Integration

Connect the entire mortgage technology ecosystem quickly and securely on a single platform, where all data and services become seamlessly interoperable. The Staircase platform untangles the integration issues that hold the mortgage industry back and enables end-to-end seamless automation. Automate custom workflows between all software. Instantly verify employment and income. Save time and labor by transforming PDFs into data. Instantly connect to any partner or system of record. Delegate finding best results and orchestration to us. Staircase is an API marketplace that allows for low code integrations and the orchestration of all technology providers in the US residential mortgage industry. We enable all parties throughout mortgage origination and servicing to easily communicate with zero friction. You can think of us as "AWS marketplace for mortgage". Staircase enables seamless integration and orchestration instead of trying to move the industry towards a single integration style.

Fit it to your brand and provide all features needed for easy API adoption. Provide a fast and personalized onboarding experience from discovery to integration. Analyze your portal user’s behavior and API real-time usage. Enable live testing, built-in API key management, and code snippets. Send emails, alerts, and communications based on API usage. Choose the right monetization model and try different pricing options. Provide the fastest time to the first call and a personalized experience. Keep on improving your developer portal & pricing to scale your business.

DigitalAPI is a unified API management platform designed to help organizations manage the full lifecycle of APIs, events, and agents across multiple environments. It centralizes API discovery, governance, deployment, and monetization into a single control plane. The platform enables businesses to manage APIs across different gateways and cloud infrastructures with enhanced visibility and control. It includes tools like a lightweight API gateway, developer portal, and external API marketplace for improved accessibility and adoption. DigitalAPI also supports AI-ready capabilities, allowing APIs to be integrated with agent-based workflows and automation. Its governance features ensure security, compliance, and structured API management at scale. Overall, DigitalAPI helps organizations streamline API operations and unlock new revenue opportunities.

Nokia API Hub is a comprehensive API marketplace and management platform that allows developers and organizations to discover, connect to, test, and manage thousands of APIs within a single unified environment. It functions as one of the world’s largest API hubs, enabling users to access and integrate APIs using a standardized format and a single API key, simplifying the process of working with multiple external services. It provides tools for API discovery, allowing users to search and evaluate APIs for different use cases, as well as built-in testing capabilities to send requests and inspect responses directly from the browser before integration. It also includes a centralized dashboard for monitoring API performance, tracking metrics such as usage, latency, and error rates, and managing subscriptions and access. Developers can publish their own APIs to the hub, control access (public or private), and monetize them while handling user management and more.

Glasser is a data API marketplace for AI agents and developers. It brings specialist data providers into one account and balance, with sources for company and people research, search and SEO, finance, property, jobs, social media, and product data. Users can discover endpoints, inspect inputs and prices before a call, then retrieve data through Glasser's hosted service, a Model Context Protocol (MCP) connection, command-line tool, or agent setup skill. Charges apply per data call rather than as a monthly Glasser subscription; rates vary by provider and endpoint. Glasser supports agent workflows needing structured external data for research, lead generation, enrichment, analysis, or search. Users choose which endpoint to call and can review results and charges in the workspace. Endpoint search and price checks are free, and new accounts receive a $1 credit for paid calls.

Locoia (short for: low-code intelligent automation) is a Germany-based all-in-one integration & automation platform (iPaaS) tailored-to-the European market with its special requirements in terms of data protection and GDPR-compliance. Locoia is a fully-fledged iPaaS with everything growth companies, SMEs, and enterprise customers could ask for: 1000+ connectors, incl. old-fashioned ERP systems, a low-code, and drag & drop workflow builder, advanced low-code programming helpers, highly robust, scalable, and secure infrastructure, as well as strong customer support. Due to its low starting price (from $199/month), Germany-based servers, high GDPR & data protection compliance, as well as powerful low-code platform, Locoia is the ideal iPaaS solution for European digital-oriented small-to-medium-sized companies and enterprises that are looking to integrate both cloud & legacy ERPs and systems, have advanced to complex integration and automation needs and value world-class support.

The ApyHub Marketplace is a one-stop platform where developers can discover, integrate, and monetize APIs effortlessly. Designed to eliminate the hassle of building and managing essential services, ApyHub provides a curated catalog of high-quality APIs, covering a wide range of use cases. ApyHub offers ready-to-use APIs across multiple categories, allowing developers to streamline their workflows and focus on real innovation.

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Mobile applications increasingly use Application Programming interfaces (APIs) in addition to enterprise systems of record in their development. The number of APIs available grows by the day. Their usage is multiplied by a growing population of mobile devices and computing platforms (web, tablets, smartphones, TVs, video game consoles, cars, and other household devices--the Internet of Things). As the number of APIs an organization produces and uses increases, the management and visibility of these APIs become increasingly important. The Oracle API Catalog (OAC) allows organizations to easily build a catalog of their APIs to provide visibility to those APIs for application development. OAC includes a simple metamodel for an API asset, automation to populate OAC, and the ability for users to search OAC for APIs and understand the details of the APIs to assess their fit in the user's application.

​Optum AI Marketplace is a curated ecosystem of AI-powered solutions designed to transform healthcare by providing payers, providers, and partners with tools to deliver better outcomes efficiently. It offers a diverse range of products and services across categories such as patient & member engagement, eligibility & claims, care operations & management, payment & reimbursement, and analytics & insights. Notable offerings include the prior authorization inquiry API, which enables payers to check a patient's prior authorization status in real-time, and SmartPay Plus, an e-cashiering payment platform that simplifies patient payments and streamlines the collection process. Additionally, Optum Advisory Technology Services provides expert support for digital transformation initiatives, offering system selection, procurement, implementation, and AI tools. It also features partnerships with trusted resellers, such as ServiceNow, to offer cutting-edge healthcare solutions.

AllThingsDev is a comprehensive API marketplace designed to streamline the discovery, subscription, and integration of APIs across various domains. It offers an extensive catalog encompassing categories such as artificial intelligence & machine learning, business & productivity, finance & payments, cloud & infrastructure, health & fitness, and communication & social. Developers can explore APIs for tasks like image recognition, text analytics, predictive modeling, project management, data analytics, secure payment processing, and social media integrations. Each API listing provides detailed documentation, usage examples, and integration guidelines, facilitating seamless adoption. AllThingsDev's user-friendly interface allows for efficient search and filtering, enabling users to find APIs that match their specific project requirements. Upon subscribing to an API, users receive immediate access credentials and sample code to expedite integration.

This portal provides a sandbox to test APIs and manage partners, clients, and your processing preferences. Our Open*CP Fintech API Marketplace is one of the only ‘REAL Banking-as-a-Service’ platforms powered by a full-scale, digital payments bank. Open*CP Fintech API Marketplace is simplifying the way that established brands and fintech acquire single-source access to the full payments ecosystem in lieu of expending the resources or acquiring the expertise to piece together all of the individual parts. Open*CP’s features of technology, charter and choice make it the solution for entrepreneurs who long for a complete integration from a trusted payments bank that leads in innovation. Central Payments is focused on making financial experiences better for all, particularly serving people of modest means who historically have not enjoyed the benefits of affordable and accessible financial products.

Kemiex provides a set of digital solutions that help companies buy and sell raw materials more conveniently with existing and new verified trade partners in the feed, food, vet, and pharma industries. Additionally, we collect and summarize crucial information to help you visualize markets in real, so you can connect the dots faster than your peers. Your safety, privacy, and our neutrality are our main priorities. Your own private platform to interact with your trusted trade partners. Safe and fast access to suppliers and customers globally. Analyze and compare +36 price trends for vitamins, amino acids, APIs, and freight costs. Thousands of neutral data points are collected from marketplace transactions, enhanced with big data, verified by our analysts, and contrasted with our customers to provide truly independent price trends. Save time browsing the internet for news all around the world. We collect news about relevant events in the industry and make them available immediately.

Jitterbit Harmony is an AI-infused integration and automation platform designed to unify business systems across cloud, SaaS, and on-premise environments. It provides end-to-end workflow automation through products including iPaaS, API Manager, App Builder, and EDI. With a layered AI architecture, Harmony embeds accountable AI agents and assistants directly into integration processes. Drag-and-drop connectors enable rapid deployment and seamless connectivity with thousands of applications such as Salesforce, SAP, Workday, and NetSuite. The platform supports industries ranging from healthcare and manufacturing to retail and logistics. Jitterbit has earned repeated #1 rankings in G2’s Enterprise iPaaS Implementation Index, highlighting customer satisfaction and speed to value. Designed for secure, scalable transformation, Harmony powers integration, automation, and application development within a single unified system.