Compare the Top API Management Software in the UK as of April 2025 - Page 2

  • 1
    Backendless

    Backendless

    Backendless

    Backendless is a Visual App Development Platform (VADP) that combines API, user, and database management functionality with a user-friendly, web-based interface and UI Builder. Backendless offers the ability to send emails and push notifications and supports real-time chat and geolocation-based functionality. A Backendless application can be customized with manually written code or using our Codeless logic builder. The platform can be hosted on our cloud servers or installed and managed on your own private servers. The Backendless UI Builder allows you to build fully functional web and mobile apps. You can use the UI Builder, or Backendless works seamlessly with virtually any client-side environment, automatically morphing data to the proper format for the frontend operating system. A Backendless database can also be connected to external databases, allowing you to maintain existing data sources while also being able to manage those databases using Backendless' intuitive interface.
    Starting Price: $15.00/month
  • 2
    Advantage CSP

    Advantage CSP

    Advantage CSP

    Advantage CSP is an enterprise-class content services platform that powers complex websites, mobile apps, and business applications while offering the flexibility to adapt to each organization's unique processes and workflows. From public-facing websites to business applications that drive organizational processes, Advantage CSP unifies an enterprise for efficiency. Centrally manage thousands of sites using just one interface. 30% faster development and deployment time compared to a traditional CMS. Spend less time on coding and more time on scaling your business. The multi-tenant architecture enables multi-site and multi-language deployments from a single dashboard. Effortlessly help your team efficiently create beautiful digital experiences for every user on any device. Achieve true flexibility and power.
    Starting Price: $79 per month
  • 3
    Impala

    Impala

    Command Line Software

    Connect your product to hotel data in minutes Securely read from and write to many hotel systems using one powerful, well-documented JSON API. Connect your app to our Test Hotel in minutes, and connect to real hotels in days, not weeks. One easy-to-understand, universal REST API to connect to many hotel systems. Impala uses bank-grade security, is fully GDPR-compliant and uses geographically diverse hosting. Impala will be the last PMS integration you’ll ever need. We’re connecting your app to hotel data by integrating with a growing number of property management systems, so you don't have to. We're continuously adding hotel systems, so you can sell to a wider range of hotels every month. Modern hotel technology needs complete data and that's what Impala provides, seamlessly and in both directions. Whether you need to read guest information, write a new transaction or receive an update on a rate change, the Impala API provides a full range of data.
    Starting Price: €17 per month
  • 4
    Martini

    Martini

    TORO Cloud

    Join the growing community of integration ninjas using Martini™ to integrate faster. Gloop eliminates the grunt work required when creating services for application and data integration, building APIs, and managing data. Gloop makes it easy to perform common development tasks such as mapping and transforming data, iterating over arrays, executing if-else and switch-case logic, invoking external code, running jobs in parallel, and so much more. Flux is Martini’s event based workflow engine for managing asynchronous workflows and event based triggers of Gloop microservices. With Flux you can invoke Gloop microservices sequentially, passing the output of one to the other, and/or in parallel, and Flux will maintain the state of each execution for you. Flux workflows are created visually by dragging Flux states onto a canvas and selecting the Gloop microservice you would like executed when the state is invoked.
    Starting Price: $500 per month
  • 5
    SyncTree

    SyncTree

    Ntuple

    SyncTree strives to be a "Super Connecting Platform" that can easily connect any services you want. With SyncTree, which consists of SyncTree STUDIO, a solution for building backend business logic with block coding, and Block Store, a platform for buying and selling pre-made backend function blocks like App Store, you can organically utilize data and connect services to achieve unlimited service expansion. Based on aPaaS, Block Store provides APIs from various services such as ChatGPT, DALLE, YouTube, etc. in the form of 'backend function blocks', which you can subscribe to and then combine as you want quickly in SyncTree STUDIO to build your business logic. SyncTree is for everyone, whether you're an individual or a business, and you can subscribe and use it according to your needs, from the free version to the PRO version.
    Starting Price: Free/1Month/3,000 Call
  • 6
    Telepresence

    Telepresence

    Ambassador Labs

    Telepresence streamlines your local development process, enabling immediate feedback. You can launch your local environment on your laptop, equipped with your preferred tools, while Telepresence seamlessly connects them to the microservices and test databases they rely on. It simplifies and expedites collaborative development, debugging, and testing within Kubernetes environments by establishing a seamless connection between your local machine and shared remote Kubernetes clusters. Why Telepresence: Faster feedback loops: Spend less time building, containerizing, and deploying code. Get immediate feedback on code changes by running your service in the cloud from your local machine. Shift testing left: Create a remote-to-local debugging experience. Catch bugs pre-production without the configuration headache of remote debugging. Deliver better, faster user experience: Get new features and applications into the hands of users faster and more frequently.
    Starting Price: Free
  • 7
    Pangea

    Pangea

    Pangea

    Pangea is the first Security Platform as a Service (SPaaS) delivering comprehensive security functionality which app developers can leverage with a simple call to Pangea’s APIs. The platform offers foundational security services such as Authentication, Authorization, Audit Logging, Secrets Management, Entitlement and Licensing. Other security functions include PII Redaction, Embargo, as well as File, IP, URL and Domain intelligence. Just as you would use AWS for compute, Twilio for communications, or Stripe for payments - Pangea provides security functions directly into your apps. Pangea unifies security for developers, delivering a single platform where API-first security services are streamlined and easy for any developer to deliver secure user experiences.
    Starting Price: $0
  • 8
    Treblle

    Treblle

    Treblle

    Treblle is a federated API Intelligence platform built for enterprises that need full visibility, control, and security over their APIs. With a single integration, Treblle provides real-time API Discovery, Observability, Analytics, Governance, Runtime Security, and Developer Portals. It supports on-prem and private cloud deployments to meet strict compliance and data privacy requirements. Treblle helps teams shift left by surfacing API issues early in development and ensuring consistency across environments. Its AI-powered Integration Assistant simplifies onboarding and reduces manual effort. Trusted by global enterprises and recognized over 15 times by Gartner, Treblle accelerates innovation while giving you complete control over your API landscape.
    Starting Price: $25 per month
  • 9
    holidays.rest

    holidays.rest

    holidays.rest

    holidays.rest provides the most accurate and comprehensive holiday data delivered at blazing speed for customers at any scale. Cover national, public, and religious holidays for 190+ countries in milliseconds with our RESTful API. We take pride in delivering authentic, accurate data. Our API exclusively offers real historical information without artificial records. For example, it recognizes that October 3rd wasn’t German Unity Day in 1985 because Germany wasn’t unified at the time—something many other APIs fail to account for. We also don’t provide fictional data. The United Nations recognizes 195 countries, with an additional 9 partially recognized states. Unlike others, we don’t exaggerate by claiming to cover 250 countries. Our pricing is straightforward: all plans give you full access to the capabilities of our API, without restrictions on parameters or features. No hidden limitations—just simplicity.
    Starting Price: $39/month
  • 10
    Boomi

    Boomi

    Dell

    Dell Boomi AtomSphere is the easiest way to integrate all your business applications. A single-instance, multi-tenant integration platform as a service (iPaaS), Dell Boomi AtomSphere gives enterprises and their teams access to full set of capabilities that speed up integrations and simplify management. With its visual design interface and enterprise-grade performance, Boomi AtomSphere can ensure scalability and high availability and provide support across all your app integration needs.
    Starting Price: $550.00/month
  • 11
    Enterprise Universal ERP API
    Enterprise Universal ERP API is a complete HTTP REST API with hundreds of accounting & ERP functions that you can use to add accounting and ERP functionality to your own applications! All basic Accounting and ERP functionality is included and made available via API calls! GL, AR, AP, OE, Inv, Warehousing, CRM, MRP, and ECommerce calls included. Since the Enterprise ERP API is implemented in stored procedures, and can be called either directly or via HTTP REST, ANY LANGUAGE or PLATFORM can be used to access the ERP business logic! IF the language / development environment / software platform can access MySQL or SQL Server, then it can use the ERP business logic directly! One of the BEST new features of this API, is that it will allow your company to hire outside developers to build sub-systems and add-ons to your software product WITHOUT having to SHARE THE SOURCE CODE WITH THEM! You can simply send your new outside developers the API Call List & API Documentation!
    Starting Price: $999.99 One Time
  • 12
    AvAIO

    AvAIO

    SysAIO

    At SysAIO, we create all-in-one software solutions to simplify complex operations. Our flagship product, AvAIO, is built for aviation—seamlessly managing reservations, operations, and management, all within in a single platform. Gain full oversight of your airline’s operations with advanced management tools covering compliance tracking, aircraft airworthiness, and maintenance scheduling. AvAIO centralizes critical data, automates reporting, and enhances decision-making, ensuring regulatory compliance, operational efficiency, and improved resource allocation. Deliver a seamless booking experience with integrated DCS, automated check-in options, and secure payment processing. AvAIO optimizes inventory management, reduces manual workload, and ensures a smooth reservation process—enhancing both passenger satisfaction and operational efficiency. Gain full oversight of your airline’s operations with advanced management tools. Visit our website for more details.
    Starting Price: $2000 per month
  • 13
    Conholdate.Total For .NET
    Conholdate.Total for .NET is the complete package of all .NET APIs as offered by Aspose and GroupDocs. It empowers the developers to perform a wide range of document processing tasks from within their own .NET based applications. This .NET package is an all-in-one solution for all types of document managements systems because it offers the ability to create, edit, print, view, annotate, compare, sign, automate, search and convert between a wide range of popular document formats. Process a Multitude of File Formats - Conholdate.Total for .NET empowers you to build an incredibly versatile file processing system capable of handling many popular file formats. You can easily open, create, modify and convert file formats. Conholdate.Total for .NET currently supports following file types: Microsoft Word documents Microsoft Excel spreadsheets Microsoft PowerPoint presentations Adobe PDF documents Microsoft Outlook Microsoft Project files and more than 100 other file formats
    Starting Price: $4,999
  • 14
    DreamFactory

    DreamFactory

    DreamFactory Software

    DreamFactory Software is the fastest way to build secure, internal REST APIs. Instantly generate APIs from any database with built-in enterprise security controls that operates on-premises, air-gapped, or in the cloud. Develop 4x faster, save 70% on new projects, remove project management uncertainty, focus talent on truly critical issues, win more clients, and integrate with newer & legacy technologies instantly as needed. DreamFactory is the easiest and fastest way to automatically generate, publish, manage, and secure REST APIs, convert SOAP to REST, and aggregate disparate data sources through a single API platform. See why companies like Disney, Bosch, Netgear, T-Mobile, Intel, and many more are embracing DreamFactory's innovative platform to get a competitive edge. Start a hosted trial or talk to our engineers to get access to an on-prem environment!
    Starting Price: $1500/month
  • 15
    Kong Konnect
    Kong Konnect Enterprise Service Connectivity Platform brokers an organization’s information across all services. Built on top of Kong’s battle-tested core, Kong Konnect Enterprise enables customers to simplify management of APIs and microservices across hybrid-cloud and multi-cloud deployments. With Kong Konnect Enterprise, customers can proactively identify anomalies and threats, automate tasks, and improve visibility across their entire organization. Stop managing your applications and services, and start owning them with the Kong Konnect Enterprise Service Connectivity Platform. Kong Konnect Enterprise provides the industry’s lowest latency and highest scalability to ensure your services always perform at their best. Kong Konnect has a lightweight, open source core that allows you to optimize performance across all your services, no matter where they run.
  • 16
    3scale

    3scale

    Red Hat

    3scale is the API infrastructure to build on now, and for the future. We make it easy to manage your APIs for internal or external users. Share, secure, distribute. Control who gets access to your APIs. Implement your corporate business, usage, and governance policies from a simple console. Package APIs in the tiers of service that make sense for your business. Take advantage of a wide range of authentication patterns and credentials to create the safest interactions for your partners, customers, and users. Plan, design, implement, publish, govern, operate, analyze, optimize, and retire your APIs from a one continuous experience. Implement this lifecycle in an open standard devops pipeline. Foster a community of users with a sophisticated developer portal. Design your own systems for provisioning developers and provide the content and tools they need with a CMS out of the box. Provide interactive documentation to speed developers to productive use.
    Starting Price: $750 per month
  • 17
    SheetDB

    SheetDB

    SheetDB

    SheetDB will turn your sheets into a JSON API, easy to integrate with other tools and all programming languages. We have prepared many libraries working with common tools, other APIs and programming languages. If you work with non-IT people, use Google Sheets as a database for your projects. Spreadsheet is a great CMS that everyone know how to use! SheetDB is really easy to implement with any programming language. We take care about tokens and security stuff, so you can focus on your ideas.
    Starting Price: $19 per month
  • 18
    APIMatic

    APIMatic

    APIMatic

    Enable faster integrations of your API by providing multi-language SDKs with API reference docs, dynamic code samples, assisted authentication and more - all auto-generated to provide a comprehensive developer experience beyond any API documentation tool. Get programmatic access to APIMatic offerings via CodeGen-as-a-Service (CGaaS). Looking to build code generation directly into your CI/CD pipelines, update API docs on the fly, or publish a package to npm? CGaaS can assist wherever, whenever and however you want. CGaaS is available in flexible options like APIs and GitHub Actions. Effortlessly integrate your APIs, and drastically reduce time to update and release APIs or microservices with no fear of breaking changes.
    Starting Price: $15 per month
  • 19
    Atatus

    Atatus

    NamLabs Technologies

    NamLabs Technologies is an Indian software company that publishes a software suite called Atatus. Atatus is a SaaS software & a full stack observability platform. It provides a wide range of monitoring capabilities including Application Performance Monitoring, Real-User Monitoring/ End User Monitoring/ Browser Monitoring, Synthetic Monitoring, Infrastructure Monitoring, Logs Monitoring, and API Analytics. Analyze the performance of your application for performance issues such as slow transactions, database queries, website availability, uptime, latency, response time, and throughput, much more. 24x7 customer support is guaranteed.
    Starting Price: $49.00/month
  • 20
    Apollo GraphQL
    Get GraphQL done fast and done right. Built on Apollo's core open source GraphQL client and server, the Apollo Platform offers developer tools and cloud services to accelerate development, secure the infrastructure, and scale across teams. The tools and libraries you need to implement a GraphQL schema, connect it to your apps, gain insights into how it performs, and maintain it over time. Keep your GraphQL infrastructure secure and stable using historic data about production traffic to automatically safeguard it from breaking schema changes or unsafe client queries. Expand your GraphQL API from one team to the entire organization by composing separate GraphQL services into one federated schema, without single points of failure or development chokepoints. A single source of truth for your data graph. Track and collaborate on your schema, with detailed history of how it’s changed over time and how each part is used by different clients.
    Starting Price: $49 per month
  • 21
    LaunchDarkly

    LaunchDarkly

    LaunchDarkly

    LaunchDarkly feature management platform. Dynamically control the availability of application features to your users. Modern development and operations teams are using feature management to deliver faster and take on more development cycles. This best practice enables engineering teams of any size to continuously deploy code, and empowers business teams with control over features so they can manage their customers' experience. With the LaunchDarkly Feature Management Platform, leading teams are able to reduce risk and launch their ideas at inception. Speed up the pace of software delivery by separating code deployments from feature releases. Deploy when you want, release when you’re ready. Lower the cost of being wrong by using feature flags to rollout new features and services or when migrating systems. Monitor and manage your features in real-time. Test robust functionality instead of just cosmetic changes.
    Starting Price: $12 per month
  • 22
    Apideck

    Apideck

    Apideck

    Apideck eliminates the complexity of integrations with a single real-time API that connects to 135+ platforms across CRM, Accounting, HRIS, File Storage, and eCommerce without the technical overhead. Instead of spending months building and maintaining multiple integrations, SaaS companies go to market 98% faster while we take care of maintenance, versioning, and infrastructure. Our platform lets you focus on business growth while we handle the integrations, so you can launch faster, cut costs, and scale without limits. Why leading SaaS teams choose Apideck: ✅ One platform, unlimited integrations – No need to build or maintain separate integrations. ✅ Real-time data – No caching means instant, up-to-date information. ✅ Flexible, cost-effective pricing – API call-based, so you only pay for what you use. ✅ Enterprise-grade security – GDPR & SOC2 Type 2 compliant. ✅ Mission-critical reliability – 99.8% uptime SLA with 24/7 support.
    Starting Price: €299
  • 23
    Stream

    Stream

    GetStream.io

    Why spend months building in-app activity feeds and messaging from scratch when you can implement in just weeks with Stream's activity feeds and in-app chat APIs? Stream's reliable APIs, developer-friendly SDKs, and flexible UI kits enable product teams to quickly integrate polished communication functionality often found in social media platforms such as WhatsApp, Facebook Messenger, and Instagram. With an industry-leading 99.999% uptime SLA, over a billion end users, and 5 million concurrent connections recently supported in a single chat channel, Stream's APIs are highly scalable, making them ideal for enterprise-grade businesses and growing startup platforms alike. Ship fully-featured activity feeds and in-app chat functionality faster with easy-to-use software components that give your product a competitive edge.
  • 24
    Insomnia
    Design, debug, and test APIs like a human, not a robot. Finally, a workflow you'll love. The Collaborative API Design Tool for designing, testing and managing OpenAPI specifications. The Desktop API client for REST and GraphQL. Make requests, inspect responses. Quickly create and group requests, specify environment variables, authentication, generate code snippets, and more. Get all the details on responses. View the whole request timeline, status codes, body, headers, cookies, and more. Create workspaces, folders, environments, drag-and-drop requests, and easily import and export your data. Create, edit, lint, debug, preview, and manage all of your OpenAPI specs in one collaborative API design editor. Generate configuration for common API gateways such as the Kong API Gateway, and Kong for Kubernetes. Sync your API designs with source control such as Github / Gitlab, and deploy directly to API Gateways such as Kong with one click.
    Starting Price: $5 per month
  • 25
    Switchover
    We help companies in every industry to accelerate their software development processes. Our clearly arranged feature flag solution allows you to switch your features on and off at any time. Use it for User Targeting, A/B Testing, Canary Releases, Experimenting and everything else you can think of.
    Starting Price: 0,-EUR
  • 26
    RapidAPI

    RapidAPI

    RapidAPI

    RapidAPI Testing is a functional API testing and monitoring solution that provides an intuitive UX, support for any API type, and integration with the RapidAPI Marketplace and Enterprise Hub. RapidAPI Testing enables users and enterprises to: Ensure API Functionality – Easily create intricate functional tests for deep validation of APIs. Centralize Monitoring – Monitor and manage API tests across multiple geographies. Improve Efficiency – Integrate to the CI/CD pipeline, collaborate across teams, and natively integrate with the RapidAPI Marketplace and Enterprise Hub. RapidAPI Testing enables you to create customizable functional test flows that provide deep validation of REST, SOAP, and GraphQL APIs. An easy-to-use interface offers users three options for test generation, enabling developers and non-developers to create visual, automated, or code-based test generation.
    Starting Price: $59 per user per month
  • 27
    API Science

    API Science

    API Science

    APIs aren't just plumbing. They're critical to your business, your apps, and your reputation. That means you need to make sure they're always up, working and performing as they should. Don't let customers call you to tell you your API is down. Don't suffer bad app reviews because of slow or unreliable APIs. Traditional monitoring services were designed long before APIs became core to modern applications. API Science is designed specifically for monitoring APIs. Sure, we understand REST, JSON, OAuth, XML. No problem. Our worldwide API monitoring network lets you see how developers and apps really experience your APIs. You setup API monitors with your own tests. We then call your APIs (up to every minute) from around the world. If anything goes wrong we'll immediately let you know. Quickly identify performance issues, outages, errors. Troubleshoot faster and easier.
    Starting Price: $29 per month
  • 28
    Gravitee.io

    Gravitee.io

    Gravitee.io

    Gravitee.io is the easiest to use, most performant and cost-effective Open Source API Platform that helps your organization to secure, publish and analyze your APIs. Use the power of Gravitee.io to manage identities with our OAuth2, OpenID Connect (OIDC) and Financial-grade API (FAPI) certified server. Gravitee.io APIM is a flexible, lightweight and blazing-fast open source API Management solution that helps your organization control finely who, when and how users access your APIs. With strong governance features such as API review and API quality and our market leading API designer, Gravitee.io enables you to design, manage, deploy and monitor your APIs in a secure and governed way. A branded Gravitee.io portal enables your API consumers to fully engage with your business - delivering high quality engagement for your business in the digital age.
    Starting Price: $2500 per month
  • 29
    Stoplight

    Stoplight

    Stoplight

    Stoplight is an API Design, Development, and Documentation platform. Use Stoplight Platform to enable consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience. Here's what you can do with Stoplight Platform: - Design APIs with our easy visual designer, Stoplight Studio - Mock API designs automatically with Stoplight Prism mocking - Collaborate on your designs and invite internal and external users to provide feedback - Develop faster and better APIs - Test and enforce against style guides with Stoplight Spectral - Document both internal and external APIs automatically to create a delightful experience Utilize and integrate design-first workflows to quickly scale up standardized, collaborative, and well-governed API programs.
    Starting Price: Free
  • 30
    Checkly

    Checkly

    Pink Robots

    Monitor the status and performance of your API endpoints & vital site transactions from a single, simple dashboard. Checkly is an active reliability platform that brings together the best of end-to-end testing and active monitoring to serve modern, cross-functional DevOps teams. With a focus on JavaScript-based Open Source tech stacks, Checkly is easy to get started with and seamlessly integrates into your development workflow. Checkly is the API & E2E monitoring platform for the modern stack: programmable, flexible and loving JavaScript. Monitor and validate your crucial site transactions. Take screenshots and get instant insights into what's working and what's not. Coding browser click-flows used to be hard. Not anymore. Use modern open source frameworks like Playwright and Puppeteer to automate your flows. Run your checks in 20 locations worldwide. Make sure your APIs always responds quickly and with the correct payload.
    Starting Price: $0.80 /10k API check runs