Ship AI-Ready APIs 10x Faster with Zero Integration Headaches

Design, build & govern high-quality AI-Ready APIs at scale by transforming your API specs into executable contracts within seconds

Supported Specification Standards 

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Meet Genie, Your AI-First API Assistant

From Idea to AI-Ready API, Instantly

Genie is an AI powered API assistant which converts business requirements in plain English into complete production-ready API specifications, MCP server, contract tests, and mock servers from plain-English inputs - no code required. Ideal for teams designing predictable endpoints for headless or agentic workflows.
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Specmatic Studio is Here

No-Code API Testing Suite

Studio’s visual interface enables teams (QA, PM, frontend) to create complex contract tests, inject faults, run backward‑compatibility checks, and spin up mock servers. All artifacts integrate seamlessly into CI/CD via the Specmatic CLI.
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Dive Deep into your Services with Specmatic Insights

Govern APIs effortlessly at Scale.

Insights aggregates contract testing and mocking results across CI pipelines, visualizes service dependencies, and surfaces API Spec coverage and adoption gaps. It provides API health and governance metrics at scale.
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See Specmatic in Action

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Article Spotlight

May 20, 2025

Read time: 16 min

Demystifying API Lifecycle: Unpacking Essential Roles, Responsibilities and Their Challenges 

APIs are the invisible glue of modern digital ecosystems – powering microservices, enabling integrations, and accelerating innovation. But building and scaling successful APIs takes more than clean code, good documentation and enterprise governance. It requires a deep understanding of the API lifecycle from both provider and consumer perspectives, and the

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life of api specmatic
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What Users say about Specmatic

  • "Specmatic helped us build an executable deliverable based on the API Contract."

  • "Our earlier attempts made use of Postman mocks, but we soon realised that solves a slightly different problem. We saw some holes in the tool chain that we want and Specmatic covers that."

  • "Use Specmatic if you need to agree with another team about your shared expectations of the API. It's a well documented tool. It's straightforward to add to your build."

  • "It's an awesome tool! I'm a big fan of Specmatic and how it tackles contract testing because I'm a big fan of using the standard OpenAPI specification."

  • "Specmatic is addressing some real problems in an interesting way"

  • “Specmatic helped us achieve stable test environments by isolating dependencies through Smart Mocks”

  • Featured Clients

    Why Choose Specmatic?

    Eliminate API integration headaches with our no-code AI powered API development suite. Teams ship APIs 10x faster by transforming specifications into executable contracts instantly—no coding required, no integration surprises.

    Accelerated Delivery & Efficiency

    Reduce API development cycles by up to 75%, improve flow efficiency by 40%.

    Zero API Drift & Predictable Releases

    Eliminate ~25% of contract mismatch bugs, shift-left fault injection and backward compatibility checks and embed API drift detection in your CI pipelines.

    Team Autonomy & Parallel Delivery

    Enable API provider and consumer teams to work simultaneously with enhanced DevEx and improved Collaboration

    Resilient APIs continuously governed at Scale

    Aggregates contract testing and mocking results across CI pipelines, visualises service dependencies, and surfaces Spec coverage and adoption gaps.

    Unleash the Potential of API Specifications with Specmatic

    No-Code

    All capabilities of Specmatic are designed with a No-Code approach in mind

    Multiple Protocols

    HTTP, Kafka, SOAP, JMS, Redis, DB mocks and more

    Platform Independent

    Use the command line to integrate with any environment

    Language Agnostic

    Specmatic is Programming Language agnostic since it is working at the API level

    Proxy Mode

    Intelligent Service Virtualization lets you stub select endpoints and pass other requests through to a real Provider / service

    Capture API Specifications

    Capture your traffic and convert it into API Specifications

    API Resilience Testing

    Verify boundary conditions in your API implementations without writing a single line of code. More...

    Woven into your CI Pipelines

    Trigger Provider and Consumer CI builds when API specifications change

    Import your APIs

    Use Postman Collections or Specmatic’s proxy to create API Specifications

    API Coverage Reports

    Easily identify mismatches between your specs and implementation

    Database stubbing

    Isolate your applications from their database dependencies with JDBC & Redis stubbing

    AI Generated Examples

    Automatically generate examples for your tests powered by GPT-4

    Try out Specmatic

    Explore a collection of sample projects that showcase many of Specmatic’s capabilities.

    Women in APIs: GET /Speaking​

    Build skills and confidence with speaking in public​
    Attend the Online Training →
    Starting 1 Aug 2025
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    Upcoming Events

    Hari Krishnan speaking at GOTO Severless Bengaluru 2025
    08 Aug 2025
    Bengaluru, India

    GOTO: Serverless Bengaluru 2025

    Reliable AWS Lambda Data Pipelines with AsyncAPI Specifications
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    Agile India 2025

    25-27 Mar 2025

    Bengaluru, India

    10x DevEx – Shift Left API Governance
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    Past Events

    api days munich lambda
    02 Jul 2025
    Munich, Germany

    Apidays Munich 2025

    Reliable Kafka-Lambda Data Pipelines with AsyncAPI and Specmatic
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    naresh api days munich 10xdevx
    03 Jul 2025
    Munich, Germany

    Apidays Munich 2025

    10x DevEx – Shift Left API Governance
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    hari speaker card
    15 May 2025
    New York

    Apidays New York 2025

    Using GraphQL SDL files as executable API Contracts
    Watch Video
    life of api specmatic
    15 May 2025
    New York

    Apidays New York

    Unifying OpenAPI & AsyncAPI : Designing JSON Schemas+Examples
    Watch Video
    curious duck podcast
    30 May 2025
    Online

    Curious Duck Dev Podcast

    Reliable by Design: Building Guardrails for AI and Other Unpredictable Systems
    Watch Video
    naresh apidays singapore speaker card
    16 Apr 2025
    Singapore

    Apidays Singapore

    Multi-Protocol APIs: Designing a Unified Interface for EDA using Async APIs
    Watch Video
    hari krishnan agile india 2025 speaker card
    27 Mar 2025
    Bengaluru, India

    Agile India 2025

    API Design Anti-patterns: How to identify & avoid them
    Watch Video
    naresh jain speaker card (1)
    27 Mar 2025
    Bengaluru, India

    Agile India 2025

    10x DevEx – Shift Left API Governance
    Watch Video
    hari krishnan speaker card
    29 Jan 2025
    Online

    Functional Conf 2025

    The Functional Fix: Kotlin Error Handling Made Elegant
    Watch Video

    Agile India 2025

    25-27 Mar 2025

    Bengaluru, India

    10x DevEx – Shift Left API Governance
    Learn More
    View all Appearances →

    Transform API Specifications into Executable Contracts

    NO CODE

    Contract as Test

    Turn your API Specification into tests fast and for free (no-code) and run them against your Services to identify integration issues early.
    Learn more
    INTELLIGENT MOCKS

    Contract as Stub

    No more stale stubs. Specmatic’s “Intelligent Service Virtualization” verifies your expecations / stub responses against your A
    Learn more
    API SPEC VS SPEC

    Backward Compatibility

    dentify backward incompatible changes just by comparing two versions of your API Specifications with our unique “no-code” approach.
    Learn more
    Explore all Features →

    Introducing Specmatic IDE Plugins

    Bringing the power of Specmatic to your favourite editor

    An interactive UI takes care of your configurations for running contract tests and remembers your settings for future tests.

    Unlock the power of AI to automatically generate examples and test data for your OpenAPI specifications with GPT-4.

    Visual Studio Code

    Download ForWatch Video

    Jetbrains IDEs

    Download ForWatch Video

    Introducing Specmatic IDE Plugins

    Bringing the Power of Specmatic to your Favourite Editor

    An interactive UI takes care of your configurations for running contract tests and remembers your settings for future tests.

    Unlock the power of AI to automatically generate examples and test data for your OpenAPI specifications with GPT-4.

    Visual Studio Code

    Download ForDownload ForWatch Video

    Jetbrains IDEs

    Download ForDownload ForWatch Video

    Visual Studio Code

    DownloadWatch Video
    Watch Video
    Watch Video

    Article Spotlight

    A hand points at an API icon during a real-world adoption journey of contract-driven development.

    Contract Driven Development a Real-World Adoption Journey

    The story of how a large financial services company adopted contract-driven development. Covering the situation on the ground before adoption and initial skepticism, and how we were able to influence change by demonstrating value and eventually getting people to collaborate over API specifications.
    More..
    Explore all Articles

    Meet the Team

    Naresh Jain

    Founder, CEO
    Developer, Conference producer, Startup founder. Null Process Evangelist.

    Naresh Jain

    Founder, CEO
    Developer, Conference producer, Startup founder. Null Process Evangelist.

    Naresh Jain

    Founder, CEO
    Developer, Conference producer, Startup founder. Null Process Evangelist.

    Harness API Specifications as Executable Contracts

    Specmatic supercharges your API Specifications by leveraging them as “Executable Contracts”. Specmatic does this by:

    Intelligent Service Virtualization

    Allows Consumer Application Development and Testing to progress independent of the Provider Application

    API Specifications as Contract Tests

    Generates Tests based on the API Specification File without you having to write any code

    Contract as Test

    Tests for Free – Specmatic parses your API Specification files and based on this generates requests which are fired at your application. It then verifies if your application’s response is as per your API Specification. All this with a “No Code” approach.

    Positive Tests

    Verify if the API implementation meets basic criteria as per your API Specification

    Negative Tests

    Verify boundary conditions to identify error handling, unexpected behaviour, etc.
    Try It OutLearn MoreTry It Out →Learn More

    Contract as Mock

    A component test setup should be able to isolate the “System Under Test” from its dependencies. Intelligent Service Virtuatlization enables you to achieve this by truly emulating the dependencies.

    Intelligent Service Virtualization

    Allows Consumer Application Development and Testing to progress independent of the Provider Application

    Static and Dynamic Mocking

    Expectations can be set either at startup or dynamically at runtime (for workflow testing) through an http endpoint

    Backward Compatibility

    As API Specifcation authors / API designers it is important for us understand if our changes to existing APIs can break compatibility with existing API Consumers / Clients.

    Specmatic can perform “Contract vs Contract” testing between two versions of your API Specification file and provide accurate results about backward compatibility breaking changes. Since this is a completely “No Code” capability, you do not have to write any code on the API Client or Service Applications.

    Treat Contract as Code

    Specmatic promotes treating your API Specifications as code and storing them in a Version Control System where they truly belong.

    Central Contract Repo

    The “Single Source of Truth” for all your API Specifications so that stakeholders across the organization are on the same page.

    Pull/Merge Request based Collaboration

    Specmatic can help you identify backward compatibility breaking changes automatically as part of your pre-merge checks so that you can focus on API design.

    Begin your CDD journey

    Explore Contract Driven Development in your organizations’s context with a 2-week guided proof-of-concept implementation.
    Tell me more!

    Try out Specmatic

    Studio provides a visual experience layer built on top of the powerful Specmatic engine. It brings all the richness of our CLI features into an intuitive interface designed for first-time users and cross-functional teams—entirely in a #NoCode manner.
    Explore Studio →

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