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Open API spec and Yaml handling utilities
Last release 2 days ago
12 Oct 2026
Ships on a steady schedule
a new release about every 2 weeks
Some releases are documented
notes for 17 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
3 years old
312 releases · first in 2024
### Patch Changes - #10559: Clean up Biome warnings in package code and tests. Handle rejected debounced callbacks and await streaming writes.
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One column per month.
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Narrow DOM elements and caught errors before accessing their properties. Correct header lookup to include missing values and handle them during PowerS
#10160: Pass request duration to post-response scripts as pm.response.responseTime in milliseconds and enable the response-time example.
#10140: Replace redundant type assertions with compiler-checked annotations, typed accumulators, and existing guards across helpers, API conversion, request handling, and schema rendering.
Narrow DOM elements and caught errors before accessing their properties. Correct header lookup to include missing values and handle them during PowerShell snippet generation.
Validate release-note provider responses, represent unresolved references and absent groups in helper return types, and require narrowing merged object values. Preserve AsyncAPI broker credentials separately from HTTP authentication schemes.
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### Patch Changes - #9941: Republish every package through npm trusted publishing. No functional changes.
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### Patch Changes - #9793: Expose server and customFetch in the ClientPlugin beforeRequest hook payload (both optional, additive) so plugins can resol
server and customFetch in the ClientPlugin beforeRequest hook
payload (both optional, additive) so plugins can resolve relative URLs and run
network calls — e.g. a token refresh — through the host fetch without closing
over external state.Nothing published for this version
### Patch Changes - #9719: docs: update the Scalar platform overview block in the README
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The hook runs after the request has been built, right before it is sent. Header mutations apply to the outgoing request and the body bytes match what
#9515: feat: add requestBuilt client plugin hook and onRequestBuilt configuration callback that receive the exact fetch Request that is sent over the wire
The hook runs after the request has been built, right before it is sent. Header mutations apply to the outgoing request and the body bytes match what the server receives, which makes request signing possible: hashing the body of a rebuilt multipart/form-data request would produce a different multipart boundary than the request that is actually sent.
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Path entries and webhooks can reference components.pathItems instead of inlining operations. Navigation, mutators, search, and markdown export now res
#9342: fix: resolve operations when OpenAPI path items use $ref
Path entries and webhooks can reference components.pathItems instead of inlining operations. Navigation, mutators, search, and markdown export now resolve path-item references before reading HTTP methods and path-level parameters.
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Add WebSocketSession with connect, send, and close helpers, plus connectWebSocket orchestration using Result-based errors. Extend ClientPlugin with op
#9341: feat: add WebSocket session transport and plugin hooks for AsyncAPI
Add WebSocketSession with connect, send, and close helpers, plus connectWebSocket orchestration using Result-based errors. Extend ClientPlugin with optional webSocketHooks (beforeConnect, onWebSocketMessage, onWebSocketClose).
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IndexedDB v2 migrates existing data into the new shape, collapses all workspaces into the local team (aligned with a single team workspace on the clie
#9211: feat: UID-based workspaces and local-team migration
IndexedDB v2 migrates existing data into the new shape, collapses all workspaces into the local team (aligned with a single team workspace on the client for now), resolves slug collisions deterministically, re-keys chunk stores by workspaceUid, and strips x-scalar-tabs and x-scalar-active-tab from meta chunks so routing does not follow stale paths after migration or slug changes.
#9211: feat: make WorkspaceDocument an union of OpenApiDocument and AsyncApiDocument
migrations/semver and use isVersionLessThan from @scalar/helpers in the workspace migrator. The previous semverLessThan export is removed from @scalar/oas-utils/migrations; import from @scalar/helpers/general/compare-versions instead.Nothing published for this version
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### Patch Changes - #9023: chore: use homemade slugger
### Minor Changes - #9045: chore: migrate api-client from namespaces to teamSlug and convert team workspaces
### Minor Changes - #8986: chore: migrate api-client from namespaces to teamSlug and convert team workspaces
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### Minor Changes - #8865: feat: add plugin support for custom response body content types ### Patch Changes - #8810: refactor: move telemetry to an o
### Minor Changes - #8863: chore: updated imports to new api client version ### Patch Changes - #8825: chore: moving files around in preparation for t
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### Minor Changes - #8695: feat: suport pre/post request scripts
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### Patch Changes - #8578: fix: correctly add openapi-parser as a dependency
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### Patch Changes - #8466: chore: new build pipeline
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