firecrawl / firecrawl/firecrawl-mcp-server
Incompatible JSON Schema ($dynamicRef) in Firecrawl MCP server tools
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Description
Hello Firecrawl team,
I'm encountering an issue when using the Firecrawl MCP server with my MCP client/VS Code. The following error appears for all Firecrawl tools:
The schema uses meta-schema features ($dynamicRef) that are not yet supported by the validator. (at /$schema)
t appears your tool schemas use JSON Schema draft 2020-12 features (like $dynamicRef), but the MCP client/validator only supports older drafts (like draft-07 or draft-04). As a result, the tools are omitted and cannot be used.
Could you please:
Update your tool schemas to use draft-07 or draft-04 (removing $dynamicRef and other unsupported features), or
Coordinate with the MCP client maintainers to add support for draft 2020-12 and $dynamicRef?
Thank you!
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