MCP — Tools Reference
The MCP server exposes 26 tools to MCP clients. Tools are grouped here by domain. Each entry shows the tool name, a one-line description, key required parameters, and the MCP annotations (readOnly, destructive, idempotent).
For full parameter shapes including optional fields, the MCP server publishes a schema via the standard MCP tools/list method — most clients (including Claude.ai) display this inline.
Contacts
Section titled “Contacts”| Tool | Description | Key params | Annotations |
|---|---|---|---|
list_contacts | List/filter contacts. Supports count_only, fields=summary. | (filters) | read-only |
get_contact | Fetch a contact with bounded events (20). | contact_id | read-only |
create_contact | Create a contact. Min: email. | email | write |
update_contact | Update properties on a contact. | contact_id | write, idempotent |
get_contact_timeline | Chronological events for a contact across all sources. | contact_id | read-only |
get_contact_conversations | Gmail + Intercom thread history. Pass include_messages=true for bodies. | contact_id | read-only |
list_contact_email_threads | Compact thread list — thread_id, last_message_id, subject. | contact_id | read-only |
list_contact_notes | All notes on a contact. | contact_id | read-only |
create_contact_note | Add a freeform note (direct, no approval). | contact_id, content | write |
update_contact_note | Edit an existing note. | contact_id, note_id, content | write, idempotent |
delete_contact_note | Delete a note. Irreversible. | contact_id, note_id | destructive, idempotent |
Companies
Section titled “Companies”| Tool | Description | Key params | Annotations |
|---|---|---|---|
list_companies | List/filter companies (search domain, name, industry). | (filters) | read-only |
get_company | Fetch a company with up to 25 associated contacts. | company_id | read-only |
create_company | Create a company. Min: domain. | domain | write |
update_company | Update properties on a company. | company_id | write, idempotent |
list_company_notes | All notes on a company. | company_id | read-only |
create_company_note | Add a freeform note. | company_id, content | write |
update_company_note | Edit an existing note. | company_id, note_id, content | write, idempotent |
delete_company_note | Delete a note. Irreversible. | company_id, note_id | destructive, idempotent |
Events
Section titled “Events”| Tool | Description | Key params | Annotations |
|---|---|---|---|
list_events | List events with rich filters. Supports count_only, fields=summary. | (filters) | read-only |
get_event | Single event with associated contact/company. | event_id | read-only |
get_event_types | Distinct event names recorded for the tenant. | — | read-only |
get_event_stats | Total + breakdown by type, domain, day. | (filters) | read-only |
Batch & Aggregate
Section titled “Batch & Aggregate”| Tool | Description | Key params | Annotations |
|---|---|---|---|
batch_get_details | Up to 25 contacts or companies in one call. | entity_type, ids | read-only |
batch_get_activity | Recent events for up to 25 contacts in one call. | contact_ids | read-only |
aggregate_data | Server-side group-by on contacts/companies/events. 50+ dimensions. | entity, group_by | read-only |
aggregate_data is the right tool for any “by X, count Y” question. Always prefer it over paginating list tools.
Authoring custom MCP integrations
Section titled “Authoring custom MCP integrations”The Pathbound MCP server is built on the @modelcontextprotocol/sdk. The same tool list above is exposed via the standard tools/list method — any compliant MCP client can connect via OAuth (interactive) or with a REST API key (headless) and call them. See MCP authentication for both flows.
For the source of truth on each tool’s parameter schema and behaviour, see packages/mcp/src/tools.ts in the Pathbound repo.