ComposiovsMastra
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Composio
Composio · Agent framework
OSSMCP
Panel
6.81 spec wins
- Reliability
- 6.5
- Usefulness
- 7.3
- Cost
- 6.5
- Longevity
- 7.0
“It ships triggers, so your agent can now be woken up by an email like the rest of us.”
Mastra
Mastra · Agent framework
OSSMCP
Panel
6.86 spec wins
- Reliability
- 6.7
- Usefulness
- 6.8
- Cost
- 6.5
- Longevity
- 7.0
“Publishes two books on building agents and a weekly podcast, so the documentation now has documentation.”
Spec by spec
| Spec | Composio | Mastra |
|---|---|---|
| Architecture | ||
| Category | Agent framework | Agent framework |
| Runs | local, cloud | local, cloud |
| Platforms | macos, linux, windows, web | macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | Yes | Yes |
| Capabilities | ||
| Runs terminal commands | No | Yes |
| Multi-file edits | No | No |
| Git operations | No | No |
| Browser control | No | Yes |
| Sandboxed execution | Yes | Yes |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | any | OpenAI, Anthropic, Google Gemini, xAI, 40+ providers |
| Bring your own model | Yes | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | mixed | byok |
| Starts at | $29/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | Apache-2.0 (core) / Mastra Enterprise License (ee directories) |
| GitHub stars | 30,406 | 28,521 |
Which one would each critic pick
| Critic | Composio | Mastra | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 7.3 | 7.3 | no preference |
| El Crítico | 6.8 | 6.5 | Composio — It sits in the authentication path for every application it connects, so one incident there is one incident across every integration you shipped, at once. |
| El Profesor | 6.5 | 6.8 | Mastra — Agents iterate until the model emits a final answer or a stopping condition; workflows are an explicit graph of then, branch and parallel; suspend and resume persists state; no benchmark is published. |
| La Inversora | 7.3 | 7.0 | Composio — A $29 plan that includes $29 of usage is a subscription disguised as a meter, and the real moat is the accumulated authorisation between their service and your users. |
| La Jefa | 6.5 | 6.5 | no preference |
| El Hacker | 6.8 | 6.5 | Composio — MIT with pip install composio, npm install @composio/core and a curl installer, and it serves MCP without consuming it, which is backwards from what I wanted. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.