marketo-mcp-server-by-cdata
Provides a local, read-only MCP server for querying Marketo data via the CData JDBC Driver, exposing database-like tables/columns and a simple tool interface (get_tables, get_columns, run_query) to MCP clients (e.g., Claude Desktop) over stdio.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security controls are largely delegated to the underlying CData JDBC driver and the Marketo connection mechanism. The MCP server runs locally over stdio; network TLS is not described for the MCP transport. No tool-level authorization, scope granularity, or explicit secret-handling/logging guarantees are provided in the README. OAuth may be involved via the JDBC URL parameter, but credential storage practices are not documented here.
⚡ Reliability
Best When
You want local LLM-to-Marketo querying on the same machine as the MCP client, using CData’s JDBC driver for connection and authorization to Marketo.
Avoid When
You need a remotely reachable service, centralized access control, detailed pagination controls, or you cannot manage the underlying JDBC driver credentials safely on the host.
Use Cases
- • Enable an MCP-capable desktop client to query Marketo data with natural-language requests
- • Browse available Marketo/JDBC-exposed tables and columns
- • Run read-only SQL SELECT queries against Marketo via a standardized MCP tool interface
Not For
- • Internet-accessible/shared multi-tenant deployments (stdio implies local same-machine usage)
- • Use cases requiring robust CREATE/UPDATE/DELETE (README describes read-only for this project)
- • Applications needing an HTTP/REST API endpoint with standard web security controls
Interface
Authentication
Authentication is delegated to the CData JDBC Driver. The README hints that if the data source uses OAuth, the user must authenticate in a browser. Tool-level scope/granularity is not described in this MCP wrapper.
Pricing
Pricing for the MCP server itself isn’t specified in the provided README; it references CData JDBC Driver licensing and also points to managed platforms (CData Connect AI / other MCP server) which likely have commercial terms.
Agent Metadata
Known Gotchas
- ⚠ Server uses stdio, so it only works with clients running on the same machine (as stated).
- ⚠ The README implies Claude Desktop may require fully quitting and reopening for MCP servers to appear.
- ⚠ run_query accepts raw SQL SELECT; agents should avoid generating unintended heavy/expensive queries and ensure table/column names match the JDBC-exposed schema.
Alternatives
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Scores are editorial opinions as of 2026-04-04.