Twitter Bridge MCP
Enables Claude.ai to interact with Twitter/X by using browser automation to perform actions like posting, replying, and searching through a logged-in Chrome session. It provides a cost-effective alternative to the official API by bridging the Model Context Protocol with a real browser instance.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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replica882
Source: Glama
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
twitter_postPost a new tweet
twitter_replyReply to a tweet
twitter_likeLike a tweet (no page navigation)
twitter_retweetRetweet (no page navigation)
twitter_undoUndo an action: unlike, unretweet, or delete tweet
twitter_quoteQuote tweet - posts on your timeline with embedded tweet card
twitter_followFollow a user
twitter_unfollowUnfollow a user
twitter_searchSearch tweets
twitter_notificationsGet your notifications
twitter_my_repliesGet your own replies to other tweets
twitter_mentionsGet mentions and replies to your tweets
twitter_bookmarksGet your bookmarks
twitter_tweetsGet a user's tweets
twitter_userGet a user's profile
twitter_timelineGet your home timeline
twitter_view_tweetView a tweet with full details and image URLs
twitter_screenshotScreenshot the current Twitter page
twitter_dm_readRead your DM conversations
browser_openOpen any URL (http/https only)
browser_snapshotGet current page content
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
BASE_URLPublic URL (for OAuth discovery)BB_BROWSER_PATHPath to bb-browser binaryCDP_PORTChrome DevTools Protocol portDM_PINTwitter DM encryption PIN (if set up)OAUTH_CLIENT_IDOAuth client IDOAUTH_CLIENT_SECRETOAuth client secretPORTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
21/21 tools missing one or more hints — twitter_post (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); twitter_reply (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); twitter_like (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +18 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Descriptions match behaviour
11 tools describe read intent but their handlers mutate — twitter_search (line 65: execFileSync(BB, args, { encoding: "utf-8", timeout: 30000 })); twitter_notifications (line 65: execFileSync(BB, args, { encoding: "utf-8", timeout: 30000 })); twitter_my_replies (line 65: execFileSync(BB, args, { encoding: "utf-8", timeout: 30000 }))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Tool description accuracy
11 tools have description/behavior mismatches: twitter_search: description implies read-only but handler writes/deletes/executes; twitter_notifications: description implies read-only but handler writes/deletes/executes; twitter_my_replies: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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