Date: 2026-03-22
MCP Server: Chipp (build.chipp.ai/mcp, streamable-http transport) MCP Client: Claude Code (Anthropic CLI, macOS)
Steps to reproduce
Call search_documentation with any query:
{ "query": "add_document_source file upload base64" }
Result
{ "error": { "code": "INTERNAL_ERROR", "message": "connect ECONNREFUSED 127.0.0.1:5432" } }
Expected
Returns relevant documentation excerpts.
Root cause evidence
The error connect ECONNREFUSED 127.0.0.1:5432 indicates the documentation search handler is attempting to connect to a PostgreSQL instance on localhost:5432. This suggests the docs search feature uses a local or sidecar Postgres database that is not running in the MCP server's deployed environment.
Other MCP tools that use a different database connection (app CRUD, knowledge sources, custom actions) all work correctly, so this appears to be a database configuration issue specific to the documentation search feature.
Tested twice in the same session — consistently fails with the same error.
Environment
MCP Server: Chipp (build.chipp.ai/mcp, streamable-http, OAuth 2.0 + PKCE)
MCP Client: Claude Code (Anthropic CLI, macOS darwin)
All other MCP tools (app management, knowledge sources, custom actions, system prompt, branding) function normally for this workspace and app.
