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Add MCPlexer introduction post#17

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OzTamir merged 2 commits into
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posts/mcplexer
Jun 30, 2026
Merged

Add MCPlexer introduction post#17
OzTamir merged 2 commits into
mainfrom
posts/mcplexer

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@OzTamir

@OzTamir OzTamir commented Jun 30, 2026

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Adds a new post introducing MCPlexer, a tiny MCP proxy for running multiple labeled instances of the same MCP server without tool-name collisions.

What the post covers

  • Setup: install + a two-account .mcp.json
  • How the prefixing proxy works, with code from proxy.ts / prefix.ts
  • Remote MCP + browser OAuth, including the deterministic callback-port trick
  • A per-account permissions use case via Claude Code allow/deny rules
  • Known limitations

Notes

  • Published (draft: false) at /mcplexer-multiple-instances-of-the-same-mcp-server/
  • Includes a cover image (used as the OG card) and three screenshots
  • npm run check, npm run build, and npm run check:links all pass

🤖 Generated with Claude Code

Introduces MCPlexer, a tiny MCP proxy for running multiple labeled instances of the same MCP server without tool-name collisions. Covers setup, how the prefixing proxy works, remote MCP + OAuth support, per-account permissions, and known limitations. Includes a cover image and three screenshots (agent setup, the Notion two-instance config, and a per-account write guardrail). Still a draft.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jun 30 2026, 12:55 PM

Flip draft to false and move to the SEO slug mcplexer-multiple-instances-of-the-same-mcp-server, mirroring the post title.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@OzTamir OzTamir merged commit fa35d0c into main Jun 30, 2026
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