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Kiro

Free tier

Move beyond AI coding to agentic engineering

Free tier available·All audiences·Powered by Multiple: Anthropic (Claude), OpenAI (GPT), DeepSeek, MiniMax, GLM, Qwen (open-weight)·API available

Key strengths

Spec-driven development (prompts → requirements → architecture → tasks)Parallel agentic implementation (local and cloud)Property-based testing to catch edge cases missed by unit testsAutomated reasoning to check requirements for contradictions and gapsMulti-model support (Auto, Claude, GPT, open-weight models)Enterprise-grade security built on AWS infrastructureHeadless CLI for CI/CD integrationMCP and ACP compatibilityHooks for automated background tasks
Free tier + paid plans · from $20 USD/mo
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Kiro — Technical Documentation Highlights

Spec-Driven Development Workflow

Kiro's core workflow transforms a natural-language prompt through three automated stages:

  1. Requirements — structured, verifiable statements of what the system must do.
  2. Architecture — a design plan derived from those requirements.
  3. Tasks — discrete, executable implementation units assigned to agents.

Automated reasoning runs over the requirements stage to surface contradictions and coverage gaps before any implementation begins.

Agentic Execution

  • Local agents run within the developer's environment.
  • Cloud agents execute in parallel, enabling concurrent workstreams.
  • Hooks allow developers to define event-driven background automations that trigger without manual intervention.

CLI & CI/CD

Kiro ships a headless CLI that exposes agentic capabilities outside the IDE, enabling integration into any CI/CD pipeline. Shell support covers bash, zsh, and fish.

Protocol Compatibility

  • MCP (Model Context Protocol) — connect external context sources and tools.
  • ACP (Agent Client Protocol) — interoperate with external agent runtimes.

IDE & Extension Ecosystem

Kiro is compatible with VS Code settings and the Open VSX extension registry, giving access to a broad ecosystem of editor extensions without migration friction.

Integrations Reference

IntegrationCategory
FigmaDesign handoff
TerraformInfrastructure as code
MCPContext & tooling protocol
ACPAgent interoperability
Open VSX extensionsEditor ecosystem
VS Code settingsEditor configuration
bash / zsh / fishShell environments
CI/CDAutomated pipelines

Model Configuration

Kiro supports an Auto routing mode alongside explicit selection of Claude (Anthropic), GPT (OpenAI), DeepSeek, MiniMax, GLM, and Qwen (open-weight). Model selection can be configured per task or globally.

API

Kiro exposes a public API for programmatic control of agentic workflows and automation.

Security

The platform is built on AWS infrastructure, providing enterprise-grade security controls suitable for regulated and large-scale engineering environments.