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API Client
API Client

Insomnia› offers API Client

ProductOperating Status: Currently Offered

Open-source cross-platform API client for designing, testing, and debugging HTTP, GraphQL, gRPC, and MCP APIs.

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Overview

Insomnia is an open-source, cross-platform API client used to design, test, debug, and mock APIs across HTTP, GraphQL, gRPC, WebSocket, and MCP protocols. It offers a free tier with local and Git-based storage alongside paid cloud and enterprise plans for collaboration, governance, and single sign-on.

The client includes AI-assisted testing, a native MCP client, automated collection testing, API mocking from OpenAPI specs, and the Inso CLI for CI/CD integration. It is maintained as open source under Kong and distributed as a desktop application for Windows, macOS, and Linux.

API Client - Classification

Revenue
  • Freemium
Customer
  • Developers

API Client - Direct Competitors

  • Apible

    Apible logo

    API Client

    httpie.io

  • Postman

    Postman logo

    Postman API Platform

    postman.com

AttributeAPI ClientAPI ClientPostman API Platform
ProviderInsomniainsomnia.restApiblehttpie.io6.5M raised · SeedPostmanpostman.com433M raised · Series D
Founded201420202014
Sells ToDevelopersEnterprise, Small BusinessEnterprise, Small Business
Pricing ModelFreemium, SubscriptionRecurringRecurring, Software, Usage-based
OwnershipAcquired SubsidiaryVenture CapitalEquity, Venture Capital
API Client

Provider Insomniainsomnia.rest

Founded 2014

Sells To Developers

Pricing Model Freemium, Subscription

Ownership Acquired Subsidiary

API Client

Provider Apiblehttpie.io6.5M raised · Seed

Founded 2020

Sells To Enterprise, Small Business

Pricing Model Recurring

Ownership Venture Capital

Postman API Platform

Provider Postmanpostman.com433M raised · Series D

Founded 2014

Sells To Enterprise, Small Business

Pricing Model Recurring, Software, Usage-based

Ownership Equity, Venture Capital

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