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Cursor IDE's HTTP Streamable server fails for remote connections

By PulseAugur Editorial · [1 sources] ·

Users of the Cursor IDE are reporting issues with its HTTP Streamable (oAuth) server, which has stopped working for remote MCP connections. This functionality, which previously worked, now fails specifically within Cursor, while other MCP clients like Codex and Claude can still connect to the same servers without error. The problem appears to be related to Streamable HTTP errors, with logs indicating failed SSE streams and tombstoning of the transport after repeated 404 responses. AI

IMPACT Potential disruption for developers using Cursor for AI-assisted coding workflows.

RANK_REASON User-reported bug in a specific software tool.

Read on r/cursor →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Cursor IDE's HTTP Streamable server fails for remote connections

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-reported bug in a specific software tool.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
Standard
On-topic for AI-industry coverage; kept in the public index.
Story freshness
106 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/cursor TIER_2 English(EN) · /u/elwingo1 ·

    Cursor MCP via HTTP Streamable (oAuth) server not working anymore

    <table> <tr><td> <a href="https://www.reddit.com/r/cursor/comments/1u9bu8u/cursor_mcp_via_http_streamable_oauth_server_not/"> <img alt="Cursor MCP via HTTP Streamable (oAuth) server not working anymore" src="https://preview.redd.it/ijsbw042o28h1.png?width=640&amp;crop=smart&amp;a…

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