MCP Graphql vs Posthog
A side-by-side look at the MCP Graphql and Posthog MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Graphql for developer tools work as a local process; choose Posthog for developer tools. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Graphql when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
introspect-schema, query-graphql.
Choose Posthog when
- You need dedicated capabilities in the Developer Tools domain.
- Its auth model fits you: API key required.
- You have the keys it needs:
POSTHOG_AUTH_HEADER, MCP_URL.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 57/100 · Good | 43/100 · Fair |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | No auth required | API key required |
| Pricing | Free | Not declared |
| Required env vars | None listed | POSTHOG_AUTH_HEADERMCP_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 408 | 40,388 |
| Directory activity | 5 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 2 | Not listed |
| Full listing | View MCP Graphql | View Posthog |
Tools & capabilities
MCP Graphql tools 2
introspect-schemaThis tool retrieves the GraphQL schema. Use this first if you don't have access to the schema as a resource.query-graphqlExecute GraphQL queries against the endpoint. By default, mutations are disabled unless `ALLOW_MUTATIONS` is set to `true`.
Posthog tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
MCP Graphql
{
"mcpServers": {
"blurrah-mcp-graphql": {
"command": "npx",
"args": [
"-y",
"mcp-graphql"
]
}
}
}
Posthog
No confirmed install command for Posthog yet — follow the setup steps linked from its listing page rather than a guessed package name.