x-mcp

x-mcp

Read-only MCP server for Kan's FxTwitter API proxy, enabling public X/Twitter search and retrieval.

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README

x-mcp

Read-only MCP server for public X/Twitter search and retrieval via twitter.2-38.com. Implemented as a TypeScript + Hono Cloudflare Worker.

日本語版は下にあります: 日本語

Remote MCP endpoint

https://x.mcp.2-38.com/mcp

Discovery metadata:

https://x.mcp.2-38.com/.well-known/mcp.json

This server exposes MCP tools that call the existing public proxy endpoints under:

https://twitter.2-38.com/api/fx/2/...

Example upstream call wrapped by search_posts:

https://twitter.2-38.com/api/fx/2/search?q=from%3Ajack&feed=latest&count=10

AI agent skill first

MCP tells an agent what tools exist, but a skill tells it when and how to use them. Before asking an AI agent to use this MCP, have it install or load the bundled skill:

https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md

Full copy/paste prompts are available here:

Short English prompt:

Install or load this x-mcp skill first:
https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md

Then configure MCP server `x` with:
https://x.mcp.2-38.com/mcp

Verify tools/list includes search_posts and call search_posts with
{ "q": "from:jack", "feed": "latest", "count": 2 }.
Use this instead of x_search/xurl for public read-only X/Twitter search and retrieval through twitter.2-38.com.

MCP configuration

Hermes Agent

hermes skills inspect https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md
hermes skills install https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md --category social-media -y
hermes mcp add x --url https://x.mcp.2-38.com/mcp
hermes mcp test x

Or add this to ~/.hermes/config.yaml and restart Hermes / start a new session:

mcp_servers:
  x:
    url: "https://x.mcp.2-38.com/mcp"

Hermes will expose tools with the mcp_x_ prefix, for example mcp_x_search_posts.

Generic MCP clients

{
  "mcpServers": {
    "x": {
      "url": "https://x.mcp.2-38.com/mcp"
    }
  }
}

Use your client's HTTP / Streamable HTTP MCP transport setting if it requires an explicit transport type.

Tools

  • search_posts — call /2/search
  • get_post — call /2/status/:id
  • get_profile — call /2/profile/:handle
  • get_profile_statuses — call /2/profile/:handle/statuses
  • get_profile_media — call /2/profile/:handle/media
  • get_trends — call /2/trends
  • typeahead — call /2/typeahead
  • get_openapi — call /2/openapi.json

Smoke test

curl -sS https://x.mcp.2-38.com/health
curl -sS https://x.mcp.2-38.com/.well-known/mcp.json

For an MCP-level smoke test, call tools/list and then search_posts using your MCP client. A successful search_posts call with q=from:jack returns JSON text containing:

{
  "upstreamUrl": "https://twitter.2-38.com/api/fx/2/search?q=from%3Ajack&feed=latest&count=2",
  "status": 200
}

Local development

npm install
cp wrangler.example.jsonc wrangler.jsonc
npm run check
npx wrangler dev --config wrangler.jsonc

npm run check regenerates local Worker runtime types from wrangler.example.jsonc and runs TypeScript type checking.

MCP endpoint locally:

http://localhost:8787/mcp

Deploy

cp wrangler.example.jsonc wrangler.jsonc
# Fill account_id in wrangler.jsonc if needed.
npm run deploy

wrangler.jsonc is intentionally gitignored so account-specific deployment config stays local.

Security and scope

  • Public, unauthenticated, read-only MCP endpoint.
  • Do not include secrets, private data, or access tokens in search queries.
  • Not for posting, liking, reposting, following, DMs, notifications, private accounts, or authenticated timelines.
  • Upstream availability, rate limits, and response shape depend on twitter.2-38.com.

日本語

twitter.2-38.com 経由で公開X/Twitter情報を read-only で検索・取得する MCP server です。実装は TypeScript + Hono の Cloudflare Worker です。

公開MCP endpoint

https://x.mcp.2-38.com/mcp

Discovery metadata:

https://x.mcp.2-38.com/.well-known/mcp.json

このMCPは、既存の公開proxy endpointを呼びます。

https://twitter.2-38.com/api/fx/2/...

search_posts が包む upstream 呼び出し例:

https://twitter.2-38.com/api/fx/2/search?q=from%3Ajack&feed=latest&count=10

まずAIエージェントにskillを入れる

MCPだけだと「どの場面で、どう使うべきか」がAIに伝わりにくいので、このrepoにはAIエージェント向けskillを同梱しています。

Skill URL:

https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md

コピペ用の導入プロンプトはこちらです。

短い日本語プロンプト:

まず以下の x-mcp skill をインストール、または読み込んでください。
https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md

その後、MCP server `x` を以下で設定してください。
https://x.mcp.2-38.com/mcp

`tools/list` に `search_posts` が出ることを確認し、
`search_posts` を { "q": "from:jack", "feed": "latest", "count": 2 } で試してください。
このMCPは twitter.2-38.com 経由の公開X/Twitter情報取得専用です。公開read-only用途では x_search/xurl ではなくこのMCPを使ってください。

MCP設定

Hermes Agent

hermes skills inspect https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md
hermes skills install https://raw.githubusercontent.com/kandotrun/x-mcp/main/skills/x-mcp/SKILL.md --category social-media -y
hermes mcp add x --url https://x.mcp.2-38.com/mcp
hermes mcp test x

CLIが使えない場合は、~/.hermes/config.yaml に次を追加してHermesを再起動、または新しいセッションを開始してください。

mcp_servers:
  x:
    url: "https://x.mcp.2-38.com/mcp"

Hermesでは mcp_x_search_posts のように mcp_x_ prefix付きでtoolが見えます。

汎用MCP client

{
  "mcpServers": {
    "x": {
      "url": "https://x.mcp.2-38.com/mcp"
    }
  }
}

client側でtransport指定が必要な場合は、HTTP / Streamable HTTP MCP transportを選んでください。

Tools

  • search_posts/2/search を呼ぶ
  • get_post/2/status/:id を呼ぶ
  • get_profile/2/profile/:handle を呼ぶ
  • get_profile_statuses/2/profile/:handle/statuses を呼ぶ
  • get_profile_media/2/profile/:handle/media を呼ぶ
  • get_trends/2/trends を呼ぶ
  • typeahead/2/typeahead を呼ぶ
  • get_openapi/2/openapi.json を呼ぶ

Smoke test

curl -sS https://x.mcp.2-38.com/health
curl -sS https://x.mcp.2-38.com/.well-known/mcp.json

MCPレベルでは、clientから tools/listsearch_posts を確認してください。q=from:jack の成功例では、返ってくるJSON textに次のような内容が含まれます。

{
  "upstreamUrl": "https://twitter.2-38.com/api/fx/2/search?q=from%3Ajack&feed=latest&count=2",
  "status": 200
}

ローカル開発

npm install
cp wrangler.example.jsonc wrangler.jsonc
npm run check
npx wrangler dev --config wrangler.jsonc

npm run checkwrangler.example.jsonc からローカルのWorker runtime型を再生成し、TypeScriptの型チェックを実行します。

ローカルMCP endpoint:

http://localhost:8787/mcp

デプロイ

cp wrangler.example.jsonc wrangler.jsonc
# 必要に応じて wrangler.jsonc の account_id を埋める
npm run deploy

wrangler.jsonc はアカウント固有の設定なのでgitignoreしています。

セキュリティと範囲

  • 公開・認証なし・read-only のMCP endpointです。
  • search query に secret / private data / access token を入れないでください。
  • 投稿、いいね、RT、フォロー、DM、通知、private account、認証timelineには使えません。
  • upstreamの可用性、rate limit、response shapeは twitter.2-38.com 側に依存します。

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