Tencent/WeKnora · error

MCP service not found

Error message

MCP service not found

What it means

Lookup guard in mcpServiceService.ClearMCPCredential: the tenant-scoped repository GetByID returned nil for the requested MCP service ID, meaning no such service exists in this workspace. The method cannot clear a credential on a nonexistent entity, so it aborts before touching AuthConfig; distinct from a repo error, which would surface as 'failed to get MCP service'.

Source

Thrown at internal/application/service/mcp_service.go:546

	s.mcpManager.CloseClient(id)
	logger.GetLogger(ctx).Infof(
		"MCP credentials updated, connection closed: %s (ID: %s)",
		secutils.SanitizeForLog(existing.Name), id,
	)
	return existing, nil
}

// ClearMCPCredential removes a single credential field. Idempotent: clearing
// an already-empty field returns nil without writing or reconnecting.
func (s *mcpServiceService) ClearMCPCredential(
	ctx context.Context, tenantID uint64, id, field string,
) error {
	existing, err := s.mcpServiceRepo.GetByID(ctx, tenantID, id)
	if err != nil {
		return fmt.Errorf("failed to get MCP service: %w", err)
	}
	if existing == nil {
		return fmt.Errorf("MCP service not found")
	}
	if existing.IsBuiltin {
		return fmt.Errorf("builtin MCP services cannot have credentials modified")
	}
	if existing.AuthConfig == nil {
		return nil // nothing to clear
	}

	changed := false
	switch field {
	case "api_key":
		if existing.AuthConfig.APIKey != "" {
			existing.AuthConfig.APIKey = ""
			changed = true
		}
	case "token":
		if existing.AuthConfig.Token != "" {
			existing.AuthConfig.Token = ""

View on GitHub (pinned to 988cbb0330)

Solutions

1. Verify the MCP service ID and that it belongs to the tenant
2. List MCP services to confirm the record still exists
3. Return/propagate a 404-style response to the caller

When it happens

Trigger: Thrown at internal/application/service/mcp_service.go:546 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Tencent/WeKnora@988cbb0330 (2026-09-02). Data as JSON: /api/errors/b26eea8acde32091. Report an issue: GitHub.