Branch

Branch Event API

The Event API from Branch — 1 operation(s) for event.

GitHub OpenAPI

Operations 1

POST /v2/event/{eventid} POST /v2/event/custom #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/branch-messenger/refs/heads/main/openapi/branch-messenger-event-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/branch-messenger/refs/heads/main/json-schema/branch-messenger-put-v1-app-branchkey-request-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/branch-messenger/refs/heads/main/json-schema/branch-messenger-put-v1-app-branchkey-response-schema.json

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OpenAPI Specification

branch-messenger-event-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Branch Event API
  version: '2026-10-03'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-10-03: 6 operation(s) read from 5 public documentation page(s) (each operation names its page in x-source). This is not the provider''s published contract; Branch has published no machine-readable contract that the pipeline could find. Engine: local.'
  x-evidence-tiers:
    code-example: 9
    documentation: -3
    pages-with-code: 5
    pages-read: 5
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-03'
  x-generator: generate-contract-from-docs.py
  x-engine: local
  x-sources:
  - https://help.branch.io/apidocs/app-api.md
  - https://help.branch.io/apidocs/query-api.md
  - https://help.branch.io/apidocs/cohort-api.md
  - https://help.branch.io/apidocs/events-api.md
  - https://help.branch.io/apidocs/qr-code-api.md
servers:
- url: https://api2.branch.io
tags:
- name: Event
paths:
  /v2/event/{eventid}:
    post:
      operationId: post_v2_event_eventid
      tags:
      - Event
      summary: POST /v2/event/custom
      x-source: https://help.branch.io/apidocs/events-api.md
      parameters:
      - name: eventid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: code-example
        language: curl
        snippet: "curl\ncurl -vvv -d '{\n                    \"name\": \"picture swiped\",\n                    \"user_data\": {\n                    \"advertising_ids\": {\n                    \"oaid\": \"02ab41d3-7886-4f29-a606-fba4372e9fdc\"\n                    },\n                    \"os\": \"Android\",\n                    \"os_version\": 25,\n                    \"anon_id\": \"fbanon_abc123def456\",\n                    \"environment\": \"FU"
        collapsed_from: 2 example path(s) differing only at eventId