Developer docs

Plain integration

Plain is a collaborative support platform for B2B support teams, offering a…

Updated June 2026 23 actions available

Provider
plain
Category
Other
Setup
User-supplied API key
Actions
23 available

Quick start

Call Plain from your generated app's worker code via the OverSkill composio client. The toolkit slug below maps to Plain's public Composio identifier — your app references it by name and OverSkill handles the OAuth round-trip.

// In your generated app's worker handler:
const composio = composioClient(env);

const result = await composio.execute(
  "PLAIN_ACTION_NAME",
  { /* action parameters — see Actions section below */ }
);

return new Response(JSON.stringify(result), {
  headers: { "Content-Type": "application/json" }
});

Replace ACTION_NAME with one of the slugs listed in the Actions section below. The composio client handles auth + rate limits automatically — no API key is exposed to user code.

Setup

End-users supply their own Plain API key. OverSkill provides a pre-built connection form via the integration card — your app can call the composio client immediately once the user has connected.

Available actions

23 actions exposed via the Plain integration. Each maps to a callable slug — pass it to composio.execute(...) in your worker code.

Show all 23 actions
  • PLAIN_GET_USER_BY_ID
  • PLAIN_LIST_CUSTOMER_GROUPS
  • PLAIN_LIST_THREADS
  • PLAIN_LIST_TIERS
  • PLAIN_QUERY_THREADS
  • PLAIN_REMOVE_CUSTOMER_FROM_GROUP
  • PLAIN_RUN_GRAPHQL_QUERY
  • PLAIN_SEND_MESSAGE
  • PLAIN_UPDATE_COMPANY
  • PLAIN_UPDATE_THREAD
  • PLAIN_UPSERT_CUSTOMER

Build with Plain

Open OverSkill, describe what you want to build, and reference Plain in your prompt — the AI will wire up the integration automatically.