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Build buyer agents, seller integrations, automations, and reporting systems on the same Interchange platform. Start with the stable v2 API unless Scope3 has enrolled your account in the v3 preview.

Connect an AI agent

Connect Claude, ChatGPT, Cursor, or another MCP client in a few minutes.

Authenticate

Choose OAuth for interactive agents or an organization API key for automation.

Build a buyer integration

Create advertisers and campaigns, discover products, and read delivery.

Build a seller integration

Configure a Seller Account, connect inventory sources, and operate demand.

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Choose an API version

Use the version picker in this section to move between API generations:
  • v2 — Stable: the default production API, with MCP and REST surfaces for buyer and seller integrations.
  • v3 — Preview: one account-resolved MCP endpoint with typed, noun-shaped tools. It is available only to enrolled accounts and is not yet a replacement for every v2 workflow.
Selecting v3 changes the developer documentation shown in this section. It does not change your account, migrate an integration, or enroll you in the preview.
Read the v3 preview guide for availability, connection details, supported account kinds, and current limitations.