Composio vs Zapier MCP
Product engineer: Composio fits a product that embeds tools for its own users; Zapier fits internal automation on an existing Zapier plan. Developer-platform lead: Composio's per-call metering is easier to forecast at volume than task quotas. Agent builder: Zapier's agentic mode finds actions at run time; Composio recommends sessions for dynamic tools.
The sourced difference
Composio generates per-user MCP URLs, restricts tools with allowed_tools and bills per call (0.0003 USD on Pro); Zapier MCP serves one endpoint at mcp.zapier.com over 9,000+ apps and bills two plan tasks per successful call. (Composio: Composio MCP quickstart, read 5 November 2026 and Composio pricing, read 5 November 2026; Zapier MCP: Zapier MCP docs, read 5 November 2026)
Verdicts by reader
| Reader | Verdict |
|---|---|
| Product engineer | Composio fits a product that embeds tools for its own users; Zapier fits internal automation on an existing Zapier plan. |
| Developer-platform lead | Composio's per-call metering is easier to forecast at volume than task quotas. |
| Agent builder | Zapier's agentic mode finds actions at run time; Composio recommends sessions for dynamic tools. |
Side by side on the rubric
| Dimension | Composio | Zapier MCP |
|---|---|---|
| Remote transport | HTTP | Streamable HTTP only |
| OAuth with client registration | Composio holds app OAuth | OAuth for clients |
| Per-tool auth scoping | yes, allowed_tools | yes, app and action level |
| Hosting and scale limits | 2,000 to 10,000 requests a minute | task quota |
| Observability | not detailed on these pages | History log of every MCP action |
| Pricing | 0 / 29 USD / custom | included, tasks per call |
| Registry submission | not a registry | not a registry |
| Discoverability by agents | session-based tool discovery | agentic mode |
| Own server in the registries | yes | yes |
Evidence for every cell is on the profiles: Composio and Zapier MCP.