Mastra
Mastra is the easiest way to build a production AI application, built by the team that brought you Gatsby. We provide a complete set of AI primitives: workflows for complex operations, agents for autonomous decisions, RAG for knowledge integration, and evals for quality & accuracy. Mastra is open-source, modular, and built in Typescript for product developers. You can deploy Mastra on any cloud, and it gives you a straightforward syntax to solve the hardest problems building with AI: human-in-th
Y Combinator
yc-company-directory #5717Mastra is the easiest way to build a production AI application, built by the team that brought you Gatsby. We provide a complete set of AI primitives: workflows for complex operations, agents for autonomous decisions, RAG for knowledge integration, and evals for quality & accuracy. Mastra is open-source, modular, and built in Typescript for product developers. You can deploy Mastra on any cloud, and it gives you a straightforward syntax to solve the hardest problems building with AI: human-in-th
sourceMastra is classified as AI agents from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.
Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.
Companies similar to Mastra
A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.
Workflow86
match 80Workflow86 provides a complete end-to-end platform for building agentic workflows and automating complex business processes and operations. Workflow86 provides users with a complete suite of tools to build and deploy custom agents and orchestrate them to perform complex, long-running workflows including human-in-the-loop steps, custom code, agent tools, and integrations with your existing systems. Build using a visual canvas, or simply describe the workflow in natural language with agents able t
shared extracted concept terms: workflow; shared product terms: complete, workflow, complex, operation; shared product theme: workflow automation, developer infrastructure; same category: AI agents; shared affiliation: Y Combinator
Deasy Labs
match 68Deasy Labs was acquired by Collibra in July 2025 (global leader in enterprise data governance). Deasy Labs provides metadata orchestration for AI workflows. Deasie's platform provides the best way for AI teams to create and embed high-quality, customized metadata into their AI workflows (e.g., RAG, Agentic frameworks). Our three founders (from Amazon, McKinsey/QuantumBlack & MIT) previously built an ML data governance tool from 0 to 1 within McKinsey, which we deployed with 11 Fortune 500 compan
shared extracted concepts: rag; shared product terms: workflow, quality, rag, deploy; shared product theme: workflow automation, developer infrastructure; same category: AI agents; shared affiliation: Y Combinator
Manufact
match 66Manufact is the MCP cloud platform to get your product ready for Claude Connectors marketplace, ChatGPT App Store and any AI agent that supports MCP. We're the team behind mcp-use SDK, the open-source framework for building MCP Apps with 10k github stars and 8M+ downloads across python and typescript. It's the fastest and most complete solution for production-ready MCP servers.
shared extracted concepts: typescript; shared product terms: cloud, any, typescript, complete; shared product theme: developer infrastructure, open source and local first; same category: AI agents; shared affiliation: Y Combinator
Understudy Labs
match 61An open-source toolkit to capture traces, evaluate cheaper models against benchmarks, and ship specialist routes you own. Capture traces from LLM production workflows with a single install that deploys within coding agents you already use. Hosted infrastructure is optional. Evaluate the captured traces and set a benchmark for success. Every future model switch meets or exceeds it in A/B testing. Train and fine-tune a new model on prompts and weights you always own. Start locally and scale into c
shared extracted concept terms: workflow; shared product terms: production, set, workflow, deploy; shared product theme: workflow automation, developer infrastructure, open source and local first; same category: AI agents; shared affiliation: Y Combinator
Preflight
match 61PreFlight is a No-code web testing tool for anyone. Preflight is 20x faster than writing Selenium and Cypress tests. Maintaining Selenium/Cypress tests is also a big challenge. Preflight solves this problem by understanding how users understand any page and adapt to the changes and update the selectors if the test passes. It's also super easy to set up end-to-end tests that depend on each other with Preflight's Workflow feature. You can orchestrate which test should run after another. Creating A
shared extracted concept terms: workflow; shared product terms: set, workflow, any, solve; shared product theme: workflow automation, developer infrastructure; shared affiliation: Y Combinator
Libretto
match 61Libretto is an open-source CLI that lets agents turn website workflows into fast, reusable scripts you can deploy The problem: Most browser automation tools work by sending an AI agent to operate a website in real time, like a robot typing and clicking on your behalf. This is slow, expensive, and unpredictable. They rely on fragile DOM parsing that breaks on legacy and complex sites, and you can never fully trust what the agent will do on unintuitive or inconsistent workflows. Our approach: Libr
shared extracted concept terms: workflow; shared product terms: workflow, deploy, problem, complex; shared product theme: workflow automation, developer infrastructure, open source and local first; same category: AI agents; shared affiliation: Y Combinator