Compare
Insomnia vs Voiden API Client
Open-source but UI-centric; Voiden focuses on text-based, versionable files.
InsomniaOpen-source API client for REST, GraphQL and gRPC
Voiden API ClientGit-native. Modular. Made for devs who build.Which to pick
Pick Insomnia if you want…
- Collaborative AI-native API testing
- Open-source API client
- Integrations with Kong Konnect, OIDC or SAML (on Insomnia's list, not Voiden API Client's)
Pick Voiden API Client if you want…
- Git-native, markdown-based API design & testing
- A free, open-source tool
- Integrations with JavaScript, Python or Shell (on Voiden API Client's list, not Insomnia's)
Side by side
- What it is
- Insomnia:Insomnia is an open-source API client for designing, testing, debugging and mocking REST, GraphQL, gRPC, SOAP and WebSocket APIs.
- Voiden API Client:Voiden is an open-source, Git-native API client that lets you design, test and document APIs in plain Markdown files.
- Best for
- Insomnia:Collaborative AI-native API testing
- Voiden API Client:Git-native, markdown-based API design & testing
- Who it’s for
- Insomnia:API developers, security-focused teams, and organizations needing collaborative API workflows.
- Voiden API Client:Developers who version-control APIs and need offline, code-centric tooling.
- Pricing
- Insomnia:Freemium
- Voiden API Client:Open source
- Open source
- Insomnia:Yes, 40,038 GitHub stars
- Voiden API Client:Yes
- Works with
- Insomnia:Kong Konnect, OIDC, SAML, SCIM, Inso CLI
- Voiden API Client:JavaScript, Python, Shell, REST, WebSocket, gRPC, GraphQL, GitHub Actions
Insomnia features
- Design-first API editor. Create and preview OpenAPI specs in real time with live linting.
- Native API mocking. Generate dynamic mock responses from collections, specs or plain language.
- Automated testing at scale. Run unlimited collection tests with pre/post scripts and CI/CD integration via Inso CLI.
- Kong Konnect integration. Sync API catalog directly with Kong Konnect for up-to-date endpoint discovery.
- Collaboration & RBAC. Real-time project sharing, role-based access controls and unlimited collaborators per project.
- Flexible storage options. Store data locally, in Git, in the cloud, or hybrid with end-to-end encryption.
- Enterprise identity & security. SSO via OIDC/SAML, SCIM provisioning, SOC 2 compliance and enterprise SLAs.
- MCP client support. Test and debug MCP servers with AI-powered workflows.
Voiden API Client features
- Executable Markdown Docs. Run API requests directly inside Markdown alongside documentation and explanations.
- LEGO-style Request Blocks. Compose requests from reusable blocks (endpoint, headers, auth, params) that are version-controlled as text.
- Multi-Protocol Support. Test REST, WebSocket, gRPC and GraphQL APIs without leaving the tool.
- MCP Agent Integration. Expose requests as AI-agent callable tools and connect Claude, Codex or other MCP assistants.
- CI/CD Runner. Run .void files headlessly in Node.js environments like GitHub Actions or GitLab CI with deterministic exit codes.
- Advanced Auth & Scripts. Built-in OAuth, token, basic auth and pre/post request JavaScript, Python or Shell scripts.
- Rich Media & Format Previews. Preview PDFs, images, videos and handle XML, YAML, JSON payloads directly in responses.
- OpenAPI & Postman Import. Import OpenAPI specs or Postman collections to auto-generate .void files.
Insomnia vs Voiden API Client FAQ
Is Insomnia or Voiden API Client free?+
Insomnia has a free plan and paid plans. Voiden API Client is free and open source.
Is Insomnia or Voiden API Client open source?+
Yes, both are open source: Insomnia (Kong/insomnia on GitHub, Apache-2.0 license) and Voiden API Client (VoidenHQ/feedback on GitHub).
Do Insomnia and Voiden API Client integrate with the same tools?+
Their integration lists don't overlap: Insomnia lists Kong Konnect, OIDC, SAML, SCIM and 1 more; Voiden API Client lists JavaScript, Python, Shell, REST and 5 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.