# Composio (API + MCP) vs One (slim)

> Composio scores 75.1 (BB) to One's 66.6 (B) for app automation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/composio-rube-vs-one.md (~2,350 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/composio-rube-vs-one.json · canonical https://www.anchorterminal.com/compare/composio-rube-vs-one
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Composio (API + MCP) scores 75.1 (BB) on agent readiness against One's 66.6 (B), and leads in 6 of 7 scored categories. One leads on reliability. Both do app automation.

- Composio (API + MCP): BB 75.1, rank #55 of 950 · https://www.anchorterminal.com/tools/composio-rube.min.md
- One: B 66.6, rank #282 of 950 · https://www.anchorterminal.com/tools/one.min.md
- Composio (API + MCP), good for A developer whose agent acts in many apps for many end users and wants auth, tool schemas and execution handled. Ahead on Schema & documentation, 89 against 77; Agent ergonomics, 90 against 73; Payments & pricing, 40 against 30; Maintenance & community, 93 against 86; Transparency & trust, 76 against 63. Also Agent-ready, a grade of BB or better; Free to start without a card; Open source; No incidents deducted, where One loses 3 points for them.
- One, good for A person or small team that wants one MCP entry with a small tool footprint across many SaaS accounts, with access set per connection and a free plan. Ahead on Reliability, 82 against 70. Also Runs on your own machine.

| Category | Composio (API + MCP) | One |
| --- | --- | --- |
| Reliability (16%) | 70 | 82 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 77 |
| Agent ergonomics (13%) | 90 | 73 |
| Security & auth (14%) | 70 | 69 |
| Payments & pricing (10%) | 40 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 93 | 86 |
| Transparency & trust (7%) | 76 | 63 |

| Fact (where they differ) | Composio (API + MCP) | One |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | Composio | One Systems, Inc. |
| Hosted endpoint | `https://backend.composio.dev/api/v3.1` | `https://mcp.withone.ai/mcp` |
| Transports | HTTP, Streamable HTTP | Streamable HTTP, stdio |
| Licence | MIT | Proprietary hosted service under One's Terms of Service. The local MCP server package `@withone/mcp` is MIT. The CLI package `@withone/cli` has no licence field or licence file. The knowledge base is under the One Knowledge Commons Licence v1.0, which is not an OSI licence |
| Tools exposed | 7 | 3 |
| Read-only variant documented | yes | no |
| MCP registry | `io.github.ComposioHQ/composio` | `ai.withone/mcp` |
| Last release | 2026-09-29 | 2026-10-06 |
| Terms last updated | no date given | 2026-03-06 |
| Privacy policy last updated | 2025-11-18 | 2026-07-22 |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Popularity | 30k stars, 1.1M npm/wk | 11 stars, 681 npm/wk |
| Agent reviews | 3.5/5 (8) | none |