Insomnia review

Insomnia, built by Kong, ranks fifth as a capable multi-protocol client with strong options for where your data lives. The free Essentials plan includes unlimited local and cloud projects, Git Sync for up to 3 users, the Inso CLI for running tests in CI/CD, unlimited collection runs, 1,000 mock server requests a month, end-to-end encryption, custom linting rules and plugins. The client covers REST, gRPC, GraphQL, SOAP, WebSocket, Socket.IO and SSE, and the design side has a spec editor with live preview and OpenAPI linting. Pro, listed at $12 per user a month, adds unlimited users on Git Sync, unlimited organizations, role-based access control and 10,000 mock requests. Enterprise at $45 per user adds SSO and SCIM, storage mandates, domain capture, vault integrations with AWS, GCP, HashiCorp and Azure and integration with Kong Konnect. It is a good fit for teams that already use Kong for API management.

Who it is for

Teams that want a multi-protocol client with Git Sync, CLI test runs and a choice of where projects are stored.

Price

Free Essentials plan; Pro $12 per user per month, Enterprise $45.

$ 12 Per user / month
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Clients for REST, gRPC, GraphQL, SOAP, WebSocket, Socket.IO and SSE
• Inso CLI for automated API tests in CI/CD, with unlimited collection runs
• API spec editor with live preview, OpenAPI linting and custom linting rules
• Mock servers with 1,000 requests a month free and 10,000 on Pro
• Storage in local, Git or cloud projects with end-to-end encryption

Strengths and weaknesses

• Strength: Free plan includes the CLI, unlimited collection runs and end-to-end encryption
• Strength: Teams choose local, Git or cloud storage for each project
• Strength: Enterprise ties into Kong Konnect and adds vault integrations
• Weakness: Free Git Sync covers up to 3 users
• Weakness: Role-based access control starts on Pro
• Weakness: Enterprise at $45 per user is the highest listed seat price here

Key facts

• Free plan: Essentials, Git Sync for up to 3 users
• Plans: Essentials, Pro and Enterprise
• Annual discount: Save 17%
• Free trial: 14 days of Enterprise, no credit card

Where it ranks

Insomnia is No. 5 in our Best API Testing Tools verdict.