0.18.0

modelcontextprotocol/inspector0.18.0Dec 16, 2025by cliffhall

AI Summary

Preliminary release with basic elicitation and OAuth fixes. Includes SEP-1330 Elicitation Enum support, theme properties for UI types, and StreamableHTTP 401 error detection.

Key Highlights

Added support for SEP-1330 Elicitation Enums
Added theme property to Icon and Prompt types
Fixed 401 error detection from StreamableHTTP transport
Allowed empty elicitation form data when all fields are optional

New Features

SEP-1330 Elicitation Enums support
Theme property for Icon and Prompt types

Full Release Notes

## What's Changed
* Update V2 messaging to clarify V1 focus by @olaservo in https://github.com/modelcontextprotocol/inspector/pull/958
* fix issue link in CONTRIBUTING.md by @DaleSeo in https://github.com/modelcontextprotocol/inspector/pull/963
* [Docs] Fix broken CONTRIBUTING.md links in GitHub templates by @koic in https://github.com/modelcontextprotocol/inspector/pull/964
* Add support for SEP-1330 Elicitation Enums by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/952
* feat: add theme property to Icon and Prompt types by @Vijaydaswani in https://github.com/modelcontextprotocol/inspector/pull/968
* fix: allow empty elicitation form data when all fields are optional by @bolinfest in https://github.com/modelcontextprotocol/inspector/pull/926
* chore: bump version to 0.18.0 by @olaservo in https://github.com/modelcontextprotocol/inspector/pull/969
* Bump TS SDK version to 1.24.3 by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/971
* fix: detect 401 errors from StreamableHTTP transport for OAuth flow by @olaservo in https://github.com/modelcontextprotocol/inspector/pull/966

## New Contributors
* @DaleSeo made their first contribution in https://github.com/modelcontextprotocol/inspector/pull/963
* @Vijaydaswani made their first contribution in https://github.com/modelcontextprotocol/inspector/pull/968
* @bolinfest made their first contribution in https://github.com/modelcontextprotocol/inspector/pull/926

**Full Changelog**: https://github.com/modelcontextprotocol/inspector/compare/0.17.5...0.18.0