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Amazon Kiro

Free

An AI-powered IDE from prototype to production.

FreeFree tier
Type
Open Source
Company
Amazon Web Services (AWS)
Visit Website GitHub (38 stars)

About Amazon Kiro

Kiro is an agentic development environment built and operated by AWS that redefines how developers collaborate with AI agents. It introduces spec-driven development, where prompts are transformed into structured requirements, architectural designs, and sequenced tasks, then implemented by parallel agents running locally or in the cloud. Before writing code, Kiro checks requirements for contradictions using automated reasoning, and verifies behavior with property-based tests that catch edge cases missed by unit tests. It supports multiple models including Anthropic Claude, open-weight models, and an Auto mode that selects the best model based on complexity, latency, and cost. Kiro integrates with existing tools via the Agent Client Protocol (ACP), AGENTS.md, Skills.md, MCP, Open VSX extensions, VS Code settings, and over 500 CLIs. It offers enterprise-grade security with IAM, SSO, usage dashboards, cost management, IP indemnity, and governance. Pricing is credit-based with a perpetual free tier (50 credits) and paid plans starting at $20/user/month.

Key Features

Spec-driven development: turn prompts into requirements, design, and sequenced tasks
Parallel agents that implement tasks on local machine or in the cloud
Property-based tests to catch edge cases missed by unit tests
Automated reasoning to check requirements for contradictions and gaps
Multi-model support: Anthropic Claude, open-weight models (Qwen3, DeepSeek, MiniMax), and Auto mode
Built on open standards: ACP, AGENTS.md, Skills.md, MCP, Open VSX, VS Code settings
Enterprise-ready: IAM, SSO, usage analytics, cost controls, IP indemnity, governance
Headless CLI for CI/CD to review PRs and fix bugs without opening an editor
Context integration from tools like Figma and Terraform
Credit-based pricing with no daily or weekly rate limits

Pros & Cons

Pros
  • Spec-driven development brings structure and reduces ambiguity in AI coding
  • Property-based tests are more thorough than example-based unit tests
  • Parallel agents accelerate implementation across multiple tasks
  • Flexible model selection including cost-optimized Auto mode
  • Built on open standards for interoperability with existing tools
  • Enterprise-grade security and governance by AWS
  • Predictable credit-based pricing without rate limits on paid tiers
  • Free tier available with access to Claude Sonnet and open-weight models
Cons
  • Free tier limited to 50 credits and subject to rate limits
  • Heavy users may find credit-based costs accumulate
  • Enterprise features require team or contact sales
  • Not all premium models available in all countries/regions
  • Tightly integrated with AWS ecosystem (IAM, SSO via AWS IAM Identity Center)

Best For

Developing production-grade software with AI agentsCatching edge cases with property-based testingIntegrating AI-assisted development into CI/CD pipelinesEnterprise development requiring security, compliance, and governanceRapid prototyping with structured requirements and designDelegating background tasks (docs, tests, performance optimization) via agent hooks

FAQ

How does Kiro pricing work?
Kiro offers a credit-based pricing model. The perpetual Free tier includes 50 credits monthly with access to open-weight models and Claude Sonnet 4.5. Paid tiers start at $20/user/month (1,000 credits) up to $200/user/month (10,000 credits). Add-on credits are $0.04/credit. Team plans offer consolidated billing, SSO, and enterprise controls.
What models does Kiro support?
Kiro supports Anthropic Claude (Sonnet and Opus), open-weight models such as Qwen3 Coder Next, DeepSeek v3.2, and MiniMax 2.1, and an Auto mode that selects the best model based on task complexity, latency, and cost. Free tier includes Claude Sonnet 4.5; paid plans unlock Claude Sonnet 4.6 and Claude Opus 4.8.
Is Kiro enterprise-ready?
Yes, Kiro offers IAM and SSO authentication, usage dashboards, cost management controls, IP indemnity, governance, and administration controls. It is built and operated by AWS, inheriting its security and reliability standards.
Can I use Kiro in CI/CD?
Yes, Kiro includes a headless CLI that can run in CI/CD pipelines to review PRs and fix bugs without opening an editor.