American Financial Group

Great American Carrier Services Billing API

All business functions related to billing — payments, billing accounts, payment plans, bill charges and producer updates, plus One Inc payment notification acknowledgements.

GitHub OpenAPI

Operations 17

GET /api/endpoints
POST /api/docs
POST /api/createPayments
POST /api/updateProducers
POST /api/getAccountDetails
POST /api/getAuthenticatedAccountDetails
POST /api/getAuthenticatedAccountDetailsV2
POST /api/getPoliciesForAccount
POST /api/createNewBillingAccount
POST /api/updateBillingAccount
POST /api/getPaymentPlans
POST /api/billCharges
GET /api/synthetic
POST /oneinc/notifications/acknowledgePayments
POST /oneinc/notifications/acknowledgeScheduledPayments
POST /oneinc/notifications/acknowledgePaymentMethods
POST /oneinc/notifications/acknowledgeAutopayDetails

Documentation

📖
Documentation
https://api-documentation.gaig.com/billing/index.html
📖
APIReference
https://api-documentation.gaig.com/billing/index.html

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/american-financial-group/refs/heads/main/openapi/american-financial-group-billing-openapi.yml

Other Resources

🔗
DeveloperPortal
https://www.greatamericaninsurancegroup.com/agents-brokers/great-american-carrier-services
🔗
Overlay
https://raw.githubusercontent.com/api-evangelist/american-financial-group/refs/heads/main/overlays/american-financial-group-billing-overlay.yaml

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OpenAPI Specification

american-financial-group-billing-openapi.yml Raw ↑ 
openapi: 3.0.3
info:
  title: Great American Insurance Policy
  version: 1.0.0
paths:
  /api/endpoints:
    get:
      tags:
      - endpoints
      responses:
        '200':
          description: OK
  /api/docs:
    post:
      tags:
      - docs
      responses:
        '200':
          description: OK
  /api/createPayments:
    post:
      tags:
      - payments
      responses:
        '200':
          description: OK
  /api/updateProducers:
    post:
      tags:
      - producers
      responses:
        '200':
          description: OK
  /api/getAccountDetails:
    post:
      tags:
      - ivr
      responses:
        '200':
          description: OK
  /api/getAuthenticatedAccountDetails:
    post:
      tags:
      - ivr
      responses:
        '200':
          description: OK
  /api/getAuthenticatedAccountDetailsV2:
    post:
      tags:
      - ivr
      responses:
        '200':
          description: OK
  /api/getPoliciesForAccount:
    post:
      tags:
      - ivr
      responses:
        '200':
          description: OK
  /api/createNewBillingAccount:
    post:
      tags:
      - billing-account
      responses:
        '200':
          description: OK
  /api/updateBillingAccount:
    post:
      tags:
      - billing-account
      responses:
        '200':
          description: OK
  /api/getPaymentPlans:
    post:
      tags:
      - billing-account
      responses:
        '200':
          description: OK
  /api/billCharges:
    post:
      tags:
      - post
      responses:
        '200':
          description: OK
  /api/synthetic:
    get:
      tags:
      - synthetic
      responses:
        '200':
          description: OK
  /oneinc/notifications/acknowledgePayments:
    post:
      tags:
      - billing-webhook
      responses:
        '200':
          description: OK
  /oneinc/notifications/acknowledgeScheduledPayments:
    post:
      tags:
      - billing-webhook
      responses:
        '200':
          description: OK
  /oneinc/notifications/acknowledgePaymentMethods:
    post:
      tags:
      - billing-webhook
      responses:
        '200':
          description: OK
  /oneinc/notifications/acknowledgeAutopayDetails:
    post:
      tags:
      - billing-webhook
      responses:
        '200':
          description: OK
servers:
- url: https://prod01.api.gaig.com/billing
  description: PROD — base URL published on the Great American Carrier Services API documentation page
- url: https://uat01.api.gaig.com/billing
  description: UAT
- url: https://dev01.api.gaig.com/billing
  description: DEV