Your APIs. For humans and AI. Secured.
The API platform for the AI era.
Execute specs. Control agents. Stay secure.
Choose your package manager:
Try it in 30 Seconds
Watch how we turn the GitHub API into a powerful CLI instantly
TiefWise
The Modern REST API Client. A fast, local-first alternative to bloated, cloud-tied tools — test, debug, and organize your APIs without an account.
- ✓ Local-first, no cloud
- ✓ Under 8 MB, no Electron
- ✓ No account, no signup
- ✓ Free for core features
Download free for macOS & Windows
macOS shows Apple Silicon · Intel and MSI on the download page.
Key Features at a Glance
Everything you need to master any API in seconds.
🔍 Smart Discovery
Find exactly what you need from hundreds of endpoints instantly.
mrapids list --filter payment --method POST🔭 Explore & Inspect
Browse API structure and view detailed operation information.
mrapids explore --tag Users | mrapids show GetUser🐛 Preview & Debug
See exactly what will be sent before executing.
mrapids run CreateUser --dry-run --as-curl📝 Interactive Templates
Never forget parameter names again. Generate perfect request templates.
mrapids run ComplexOperation -i🔐 Secure Auth Management
Keys stay in environment, never in code. Profile-based auth.
mrapids run SecureEndpoint --profile production🔄 Team Collections
Save successful requests and share with your entire team.
mrapids collection run smoke-tests --env prodWhy MicroRapid?
Forget collections, logins, or GUIs. MicroRapid is built from the ground up for developers, testers, and agents who want speed, security, and automation.
🚀 Core Features
Terminal-first design
Everything runs from your CLI. Scriptable, automatable, and CI/CD-ready. No GUI overhead.
Zero accounts, zero lock-in
Works out of the box. No signup, no cloud storage, no vendor dependency.
Git-friendly workflows
Specs, configs, and tests are all plain text. Commit them, diff them, branch them like code.
AI-agent support (MCP ready)
Safely expose APIs to AI agents with policy files, redaction, and audit logging.
SDK generation
Generate strongly-typed clients in multiple languages directly from your OpenAPI spec.
Blazing performance
- • Startup time: <100ms
- • API test execution: 87ms avg
🛡️ Built for Security
Local-first execution — secrets never leave your machine
Environment-scoped configs (dev, staging, prod)
SBOMs + signed releases for enterprise trust
Our Philosophy
Terminal-first, privacy-default, AI-ready.
Speed is a Feature
Every millisecond counts. MicroRapid is optimized for developer velocity, not venture capital metrics.
Privacy by Default
Your API keys stay on your machine. Your requests never touch our servers. Your data is yours alone.
Plain Text Power
Everything is a file. Every command is scriptable. Every workflow is git-friendly. No proprietary formats, ever.
Developer-First Design
Built by developers, for developers. Every feature is designed to enhance your workflow, not complicate it.
AI as a Multiplier
We're building for a future where AI agents need policy-driven execution. MicroRapid enforces granular permissions, redacts sensitive data, and logs every action.
Local > Cloud
The best API tool is the one that works offline, commits to git, and runs in CI without secrets. Run it anywhere, even offline.
"We believe developers should own their tools and data. MicroRapid runs entirely on your machine, integrates with your existing workflow, and never phones home."
— The MicroRapid Team
🚀 Launching September 5th, 2025
MicroRapid launches as a free beta on September 5th. Be among the first to experience API testing at the speed of typing. Join our community and shape the future of API development.
Real Teams. Real Results.
Join thousands of developers who've transformed their API workflow.
We reduced our API integration time from 2 weeks to 2 hours. mrapids turned our 5000-line OpenAPI spec into an intuitive CLI that our whole team can use.
— Engineering Lead
FinTech Startup
No more searching through Postman collections or copying curl commands from Slack. Everything is version controlled and executable.
— DevOps Engineer
E-commerce Platform
Junior devs can now work with any API immediately. The interactive mode means they never forget parameters.
— Tech Lead
SaaS Company
<100ms
CLI Startup
0ms
Cloud Latency
∞
API Calls
Try It Now - 3 Real Examples
1️⃣ GitHub API
mrapids init github \
--from-url https://api.github.com/v3/openapi.yaml
mrapids list --filter repo
mrapids run repos/create \
--param name=my-repo2️⃣ OpenAI API
mrapids init openai \
--from-url openai.com/openapi.yaml
mrapids list --filter completion
mrapids run createChatCompletion -i3️⃣ Your Own API
mrapids init my-api \
--from-url localhost:3000/openapi
mrapids doctor # Validates
mrapids run healthCheck🚀 Get Started Today
No signup. No API keys. Just instant API power.