2026-08-11
The App SDK is stable.
attio and create-attio were previously published as dated
0.0.1-experimental.<date> builds. From 1.0.0 they follow
semantic versioning, and are always released together at the
same version.What stable means
- Everything exported from
attio,attio/clientandattio/serverwill not change incompatibly within the 1.x line unless marked asexperimentalordeprecated. Breaking changes require a new major version. - Additive changes ship as minor versions and fixes ship as patches, so
^1.0.0picks up both. - Individual APIs that are still taking shape are marked as experimental in their documentation and
carry an
Experimental_prefix. They are excluded from the guarantee above and can change or be removed in a minor release. Apps submitted for review must not use them.
What you can build
- Extensions: record actions, bulk record actions, record widgets, object actions and call recording text actions.
- Workflow blocks: triggers and steps that appear in Attio’s workflow builder, each with its own configurator UI.
- Workspace settings: a settings schema and a settings page for your app.
- Forms and a component library for extension UI.
- Queries against Attio data, server functions, inbound webhooks, connections to external services and a key-value store.