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front-api

Reference for Front REST API integration. Use when working with Front API schemas, nullable fields, webhooks, or debugging Front SDK issues.

SKILL.md

Full skill instructions

Front API Skill

Reference for Front REST API integration.

OpenAPI Spec

The full OpenAPI spec is in core-api.json (13k+ lines). Use it as the source of truth for:

  • Request/​response schemas
  • Nullable fields
  • Enum values
  • Endpoint paths

Key Schemas

Message

  • recipients[].name - nullable
  • recipients[]._links.related.contact - nullable
  • recipients[].role - enum: from, to, cc, bcc, reply-to
  • author - nullable (null for inbound from external)
  • text - nullable (plain text version of body)

Conversation

  • assignee - nullable
  • recipient - nullable for some conversation types
  • tags - can be empty array
  • last_message - nullable
  • scheduled_reminders - nullable

Recipient

{
  "name": "string | null",
  "handle": "string (required)",
  "role": "from | to | cc | bcc | reply-to",
  "_links": {
    "related": {
      "contact": "string | null"
    }
  }
}

Common Gotchas

  1. Webhooks send previews only - must fetch full data via API
  2. Many fields nullable - don't assume presence, use .nullable() in Zod
  3. _links.related.contact - null when recipient has no contact record
  4. role includes reply-to - often forgotten in enums

SDK Location

@skillrecordings/​front-sdk - Zod schemas should match this spec exactly.

Useful Endpoints

  • GET /​messages/​{id} - Full message with body
  • GET /​conversations/​{id} - Conversation details
  • GET /​conversations/​{id}/​messages - Message history
  • POST /​conversations/​{id}/​drafts - Create draft reply
  • GET /​inboxes/​{id} - Inbox details