Anthropic launches developer submission portal for Claude Marketplace

# What changed Anthropic opened a developer submission portal for the Claude Marketplace on September 25, 2026. The portal gives builders on paid Claude plans a formal, trackable way to add integrations to a marketplace that launched two days earlier and was already listing over 2,000 plugins, connectors, agents, and partner services.

# How submissions work There are two distinct submission paths:

• Single remote MCP connector: for developers who want to expose one specific tool or data source.
• Full plugin bundle hosted on GitHub: for larger integrations that package multiple components together.

Both routes use the same process: automated validation checks, safety scans, and review status tracking. Only after passing those guardrails does an integration become available in the Claude directory.

# The role of MCP Protocol (MCP) is central to the portal. Anthropic designed MCP as an open standard for connecting AI applications to external tools and data sources. MCP provides a shared interface so integrations can work consistently across the Claude ecosystem instead of each one requiring custom plumbing.

# Why this matters now Before the portal, developers faced a largely manual submission workflow with limited visibility into the review process and why submissions stalled. The portal adds three practical improvements:

• Faster, predictable processing for straightforward submissions through automated validation.
• Visibility into review status so developers don't have to chase manual updates.
• Scalable quality control via automated safety scans instead of relying only on manual reviews.

# Practical implications for developers and organizations If you build integrations and have been waiting to list on Claude, the portal now provides a clear path. The GitHub-hosted bundle option aligns with common developer workflows, since many teams already version and distribute code via GitHub.

Pay attention to the safety scans. Anthropic hasn't published a detailed rubric for what triggers flags, and automated checks can produce edge cases. Connectors that handle sensitive data or request elevated permissions will likely receive closer scrutiny during review.

# What developers get after approval Once a plugin clears review and is listed, developers gain access to post-launch usage analytics. That gives concrete data on how often a connector is used rather than relying on indirect signals or guesses.

# Where this fits in Anthropic's product timeline

# Bottom line The submission portal standardizes how external tools get into the Claude Marketplace. If you maintain a tool, data source, or multi-component integration and you're on a paid Claude plan, you now have a documented, trackable path to list it, with safety checks and analytics that help you measure reach once it's live.