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Published issue · October 1, 2026

Claude's marketplace is live. Install three connectors, not thirty.

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Indexed — Wednesday, October 1, 2026

Anthropic put a public marketplace in front of Claude on September 27 — more than 2,000 connectors and plugins, plus partner agents you can buy. The operator move is not "install everything." It is pick three that touch real systems, check the auth scopes, and leave the rest closed.

The Signal

Anthropic launched the Claude Marketplace on September 27, 2026. Coverage puts the catalog past 2,000 connectors and plugins from names like Atlassian, Google, Microsoft, Notion, and Salesforce, with partner agents from CrowdStrike, Cursor, Harvey, Legora, Lovable, and Snowflake, plus consulting partners such as Accenture, BCG, and Deloitte (BleepingComputer, Anthropic connectors directory at anthropic.com/partners/mcp).

What changed for you: discovery is no longer a Slack thread of MCP URLs. There is a storefront. That also means your team can one-click connect tools that read mail, tickets, code, and CRM without a shared install checklist.

What to do this week:

  • List every Claude connector / MCP / plugin already live in your workspace (web, desktop, Claude Code).
  • Add at most three new Marketplace connectors that touch production systems (repo, calendar, CRM, billing). Skip the rest for 14 days.
  • For each add: record who approved it, the OAuth scopes you accepted, and whether write access is on.
  • If a connector is "nice to have," leave it unclaimed. Catalog size is not a reason to expand blast radius.

Honesty check: a marketplace does not replace your own auth review. Last issue covered Plugin4Shell on coding-agent plugins. Different bug class, same habit — do not trust a pin or a logo alone. Treat Marketplace "Connect" like granting a third-party app in Google Workspace.

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The Stack

Twenty minutes. Do it before anyone on your team clicks Connect on a whim.

  1. Export or screenshot your current Claude connectors list (and Claude Code /plugin / MCP list if you use them).
  2. Mark each one: production-touching vs toy. Kill or disable the toys you have not used in 30 days.
  3. Pick three Marketplace adds max for the next two weeks. Write the three names in the same note as your connector list.
  4. In Cursor (featured on the AI Tools Index): open model settings and write down which model each hot agent route uses. OpenAI has proposed cutting Cursor's OpenAI model supply on November 12, 2026 after the SpaceX close — so know your fallback before mid-November (CNBC, Cursor / SpaceX).

One decision today: name the three connectors you will allow this month. Everything else waits.

Prompt of the Day

Paste this into Claude (or the agent that already has least privilege):

You are my connector auditor. I will paste: (1) my current Claude / MCP / plugin list, (2) up to three Marketplace connectors I want to add, (3) which systems each would touch (repo, email, CRM, billing, none). For each current and proposed connector, say: keep / disable / add-with-read-only / reject. Flag any with write access to production data. End with a six-line checklist I can run today. Ask for missing scope names before you invent them.

Run it on your real list. If the model invents scopes, throw the answer out.

Operators inside AI Freedom Lab are comparing which three connectors actually pay rent this month — faster than waiting for another marketplace blog.

Tool of the Day

Cursor — AI-first code editor. Featured in the AI Tools Index: https://aitoolind.io/tools/cursor

Why it earns the slot this week: Cursor is listed among Claude Marketplace partner agents, and it still has an OpenAI model cutoff clock (proposed Nov 12, 2026). If Cursor is in your daily loop, the Tool of the Day action is to pin your fallback models now, not after the shutoff email.

Do this one thing: in Cursor, switch one production agent route to Claude (or your non-OpenAI default), run yesterday's hardest job once, and keep the route that still passes.

Quick Hits

OpenAI says it will wind down OpenAI model supply inside Cursor after SpaceX's acquisition, with a proposed Nov 12, 2026 shutoff for existing models and no future models (including Astra) during the wind-down. Cursor's CEO put OpenAI traffic at about 5% and said talks continue (CNBC).

Google opened early access to a Google Home MCP server for Nest / Matter control — U.S. Home Premium Advanced for now. Fine for a home lab; not your Claude Marketplace production connector list (TechCrunch).

Claude Marketplace lets developers publish MCP connectors and Agent Skills, and lets companies apply to list Claude-powered products. Treat "listed" as discoverable, not pre-audited for your threat model.

Closing the loop

A 2,000-connector catalog is a discovery win and an install trap. Cap new connectors at three, write down scopes, and fix your Cursor model fallback before Nov 12. Marketplace clicks are easier than cleaning up a write-enabled connector later.

Footer CTAs

Join AI Freedom Lab — builders shipping with AI: https://www.skool.com/aifreedomlab

Today's Tool of the Day: Cursor on the AI Tools Index: https://aitoolind.io/tools/cursor

Missed an issue? Browse the Indexed archive: https://indexednewsletter.com/archive

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