Free Tier
Aider is an AI pair programming tool that lets developers work with Claude, GPT-4, and other LLMs directly in their terminal to edit code files. It integrates with git repositories and supports multiple AI models through various APIs.
#72 of 96 in Devtools · #52 of 69 in Ai Apis
Checklist Breakdown
11 of 33 checks passed.
14 unscored.
Can an agent find and understand this tool without a web search?
✗
Published OpenAPI/Swagger spec
✗
Has llms.txt or llms-full.txt
✗
Has an MCP server (official or well-maintained)
✗
MCP server listed in a public registry
✓
API reference docs are publicly accessible
✓
Docs include runnable code examples
✓
Has a public changelog or release notes
✓
Has a public status page
Can an agent create an account and get credentials without human intervention?
✗
Signup does not require CAPTCHA
✗
Signup does not require phone verification
✗
Supports API key auth (not only OAuth)
✗
API key obtainable without manual approval
✓
No mandatory billing info to start
✓
Can sign up without creating an organization
Can an agent operate autonomously without upfront payment or contracts?
✓
Has a free tier
✓
Usage-based pricing available
✓
No minimum contract or commitment
✓
Pricing page is public (no 'contact sales')
✓
Free tier sufficient for testing (not just a trial)
How well does the API work for non-human consumers?
—
SDK available in 2+ languages
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Structured error responses (JSON with error codes)
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Idempotency support on write endpoints
—
Pagination on list endpoints
—
Webhook/event support
—
Sandbox or test mode available
—
Rate limit headers in responses
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Consistent REST resource naming
Does the tool fail gracefully when an agent makes a mistake?
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Meaningful error messages (not just 500)
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429 responses include Retry-After header
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Documented uptime SLA (99.9%+)
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Graceful degradation under rate limits
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Request IDs in responses for debugging
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API versioning supported
Reviewer Notes
Aider is primarily a CLI tool for developers, not an agent-native service. It requires external API keys (OpenAI, Anthropic) rather than providing its own backend, so an agent cannot sign up independently. Discovery is moderate due to clear documentation, but lack of MCP server, OpenAPI spec, or programmatic account creation significantly limits agent integration. The tool is designed for human-in-the-loop development rather than autonomous agent operation.
Let your agents find tools like Aider
Install the Agent Native Registry MCP server. Your agents can search, compare, and score tools mid-task.
claude mcp add --transport http agent-native-registry https://agentnativeregistry.com/api/mcp