Home / MCP registry index / io.github.WellApp-ai/well-mcp
Well
io.github.WellApp-ai/well-mcp in the official MCP registry.
Endpoint https://api.wellapp.ai/v1/mcp. Source: github.com/WellApp-ai/well-mcp.
The registry describes it as: Connect your AI to your Well financial data - invoices, companies, contacts.
On 2026-10-29 we read its 200 tools, but part of what it advertised was cut before our rules saw it: a description or schema past the size we read, more tools than we read, or a tool list split across pages. Nothing in the part we read matched, but the rest was not checked: this is not a clean result.
Tools it advertises
well_create_ledger_account well_update_ledger_account well_delete_ledger_account well_create_payslip_line_rubric well_update_payslip_line_rubric well_delete_payslip_line_rubric well_create_shipment well_update_shipment well_delete_shipment well_create_journal well_update_journal well_delete_journal well_create_workspace_category well_update_workspace_category well_delete_workspace_category well_create_workspace_category_override well_update_workspace_category_override well_delete_workspace_category_override well_create_chat_conversation well_update_chat_conversation well_delete_chat_conversation well_delete_canvas well_create_skill well_update_activity well_delete_activity well_update_activity_participant well_create_workspace_view well_update_workspace_view well_delete_workspace_view well_update_skill well_delete_skill well_get_schema well_query_records well_create_company well_record_writing_feedback well_create_person well_update_company well_update_person well_delete_company well_delete_person well_update_invoice well_set_subscription_quantity well_delete_invoice well_add_contact_channel well_remove_contact_channel well_update_web_link well_get_entity well_list_connector_tools well_invoke_connector_tool well_create_invoice_from_data well_create_invoice_time_entries well_issue_invoice well_list_workspaces well_list_connectors well_run_register_diff well_resolve_reconciliation_task well_resolve_register_diff_gap well_get_investment_holdings well_render_cost_structure well_get_own_company and 140 more
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[](https://lazaretto.dev/mcp-registry/io-github-wellapp-ai-well-mcp)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. How tool poisoning works. What we found across the registry. Check another server.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.
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