Mastra

Good (public checks)

Agent Native Score

Mastra is an open-source framework for building AI agents and workflows. It provides tools for integrating LLMs, managing agent state, and orchestrating multi-step AI operations with built-in memory and tool management.

Categories: Ai Agents · Workflow Automation · Llm Orchestration

#1 of 23 in Ai Agents · #1 of 20 in Workflow Automation

Checklist Breakdown

0 of 33 checks passed.

Discovery 82%

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

Auth & Onboarding Not yet scored

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

Pricing Not yet scored

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)

Agent Tooling Requires account Not yet scored

How well does the API work for non-human consumers?

— SDK available in 2+ languages

— Structured error responses (JSON with error codes)

— Idempotency support on write endpoints

— Pagination on list endpoints

— Webhook/event support

— Sandbox or test mode available

— Rate limit headers in responses

— Consistent REST resource naming

Reliability Requires account 68%

Does the tool fail gracefully when an agent makes a mistake?

— Meaningful error messages (not just 500)

— 429 responses include Retry-After header

— Documented uptime SLA (99.9%+)

— Graceful degradation under rate limits

— Request IDs in responses for debugging

— API versioning supported

Reviewer Notes

Mastra excels at agent tooling with comprehensive SDK support, TypeScript/JavaScript libraries, and clear documentation that makes agent integration straightforward. Discovery is strong due to well-maintained GitHub repo, detailed docs site, and example integrations. Main weakness: as an open-source framework rather than a hosted service, reliability depends on self-deployment; no official MCP server or OpenAPI spec published, limiting discoverability through standard agent protocols. Pricing model is excellent for agents (free, open-source, self-hosted), but deployment complexity may create operational friction.

Mastra

Is this your tool?

Let your agents find tools like Mastra