MIT-licensed Python/JavaScript framework for building LLM agents, with 1,000+ model and tool integrations
Mastra alternatives
3 products our research names as a replacement for Mastra in LLM Orchestration Frameworks, each with what it does differently — prices, API and status from our own checks rather than from the vendors’ own pages.
Open-source data framework for retrieval and agents, with LlamaParse as the paid document parsing, extraction and indexing service
from $50 against $250
Mastra vs LlamaIndex →CrewAI
68Open-source Python framework for role-based agent crews and event-driven flows, with a hosted platform for running them
More in LLM Orchestration Frameworks
Not named as direct replacements — neighbours from the same part of the catalog: the best-rated first, then a sample of the rest.
Langflow
79Open-source visual builder for LLM agents and RAG flows, deployable as an HTTP API or an MCP server.
OnDemand
68Agent-building platform with a playground, visual workflow builder, agent marketplace and bring-your-own-model support, on web and mobile.
Langbase
71A serverless platform for building, deploying, and monitoring AI agents across 600-plus LLMs.
Mem0
89Memory layer for AI agents and apps that stores user facts and preferences between sessions and retrieves them on demand.
Paid Node boilerplate for AI SaaS: auth, Stripe or Lemon Squeezy billing, RAG endpoints and demo apps
Haystack
81Apache-licensed Python framework for building RAG pipelines and agents out of swappable components, maintained by deepset.
LMQL
77Query language and runtime for constrained LLM prompting, built at ETH Zurich's SRI Lab.
Prem AI
57Runs LLMs and vision models on encrypted GPUs so enterprise data never leaves the customer's environment.
OfoxAI
68OpenAI-compatible gateway routing requests to 100+ language, image, and video models by swapping a base URL.
Powabase
79Postgres backend bundled with a RAG pipeline, agent runtime and a visual workflow builder
Xpoz
70Social data API and hosted MCP server for X, Instagram, TikTok and Reddit without platform API keys
Awan LLM
71Flat monthly plans for LLM API access with no per-token metering, built on open models.
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