Connect a coding agent to Apostra, verify the account, and build an advertising
workflow. Start with apostra-developer; install the narrower operating
packages only when you need them. Packages do not grant account permissions.
Apostra OAuth and server-side entitlements remain authoritative.
codex plugin marketplace add scope3data/interchange-plugin
codex plugin add apostra-developer@interchange-pluginThe native plugin installs both the build-with-apostra skill and the Apostra
MCP connection. Complete OAuth when prompted, then ask Codex: "Verify my
Apostra account and help me build a seller discovery prototype."
/plugin marketplace add scope3data/interchange-plugin
/plugin install apostra-developer@interchange-plugin
Complete OAuth when prompted. Never paste API keys or provider credentials into a prompt.
npx skills add scope3data/interchange-plugin \
--skill build-with-apostra \
--yesThis route installs the instructions only. Connect the agent's MCP client to
https://api.interchange.io/mcp/v3, complete OAuth, and run the read-only
get_status check before building.
| Package | Purpose | Current canonical skills |
|---|---|---|
apostra-developer |
Plan, run, automate, and report on advertising across sellers, or build those jobs into an application. | build-with-apostra@1.0.0 |
amc-listing |
Build and maintain an Agentic Media Company listing in Interchange. | MCP access; workflow skill forthcoming |
amc-merchandising |
Merchandise an Agentic Media Company's inventory and products in Interchange. | MCP access; workflow skill forthcoming |
amc-distribution |
Prepare and distribute an Agentic Media Company through supported agent channels. | publish-an-openai-app@1.0.0 |
amc-campaign-management |
Operate seller-side campaigns and delivery in Interchange. | MCP access; workflow skill forthcoming |
buyer-account-setup |
Prepare an Interchange buyer account for campaign execution. | get-account-ready-to-buy@1.0.0 |
buyer-campaign-management |
Discover sellers, create campaigns, request proposals, and manage delivery. | buy-from-seller@1.3.0, set-up-a-campaign@1.3.0, set-up-an-event-source@1.0.0, manage-a-campaign@1.1.0 |
buyer-creative-management |
Prepare and inspect buyer creative inputs for campaign execution. | inspect-tag-sheet@1.0.0, generate-campaign-creatives@1.0.0 |
buyer-reporting |
Inspect buyer campaign delivery and reporting in Interchange. | set-up-an-event-source@1.0.0 |
sales-agent-testing |
Test a first-party or third-party AdCP sales agent with governed buyer workflows. | test-sales-agent@1.5.1 |
amc-self-serve-buyer |
Bundle buyer workflows for an Agentic Media Company's own self-serve plugin. | get-account-ready-to-buy@1.0.0, buy-from-seller@1.3.0, set-up-a-campaign@1.3.0, set-up-an-event-source@1.0.0, manage-a-campaign@1.1.0, inspect-tag-sheet@1.0.0, generate-campaign-creatives@1.0.0 |
amc-self-serve-buyer is the aggregate buyer package an Agentic Media
Company can bundle into its own self-serve plugin. sales-agent-testing
is the package for first-party or third-party agent validation.
Skill files are composed from the canonical, versioned Interchange skill registry. When a registry current-version pointer or referenced asset changes, the source workflow opens a reviewed sync PR for this repository.
Every durable change remains confirmation-gated by the underlying Apostra tool contract. Build guides live at https://docs.interchange.io/v3/overview.
Licensed under the Apache License, Version 2.0. Copyright 2026 Scope3 PBC.
This is a generated public mirror. Do not hand-edit it: the next reviewed sync
will overwrite local changes. SOURCE_DIGEST records the composed content
checkpoint.