Rankings
Best-of rankings
Each ranking is built from a transparent, objective rule that is printed on the page and shown on every row. A platform appears where the evidence places it.
Best open-source agent frameworks
Agent frameworks whose core is open source, ranked by our editorial overall score.
5 platformsBest MCP-native agent platforms
Platforms that support the Model Context Protocol natively, ranked by our MCP-nativeness score.
16 platformsBest managed agent platforms
Platforms that run and operate the agent for you, ranked by our editorial overall score.
6 platformsBest agent hosting & compute
Compute and sandbox infrastructure for running agents, ranked by our scalability score.
3 platformsBest agent platforms that are free to start
Platforms whose primary source shows a free tier or an open-source core you can run at no cost, ranked by our editorial overall score.
19 platformsBest agent SDKs
Vendor SDKs for wiring tool-calling agents against model providers, ranked by our developer-experience score.
3 platforms
Product and company names are trademarks of their respective owners and are used here only to identify the products under discussion.