Limits Registry
A curated public record of the verified boundaries of what is possible.
https://www.limitsregistry.com/Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect straight to this server’s public endpoint.
https://limitsregistry.com/api/mcpWe add this server to your workspace, then open Studio — saved access, one connection to many servers, with a history of what ran.
Last probed Sep 18, 2026 · limitsregistry.com
4tools discovered
Get Limit
Get a published Limit's record: title, category, and its current frontier (best known accepted bounds and gap).
Search Frontiers
Search published Limits by keyword in title, category, or summary.
List Open Frontiers
List published Limits whose frontier is still open (not yet proven/closed) — the highest-leverage unsolved problems cur…
Verify Claim
Check a hypothetical bound against a Limit's current ACCEPTED frontier — does it tighten the known bound, does it match…
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsA curated public record of the verified boundaries of what is possible.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
MCPBundles probed 4 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
Request removal if you do not want Limits Registry listed here, or claim the listing if you want to manage it on MCPBundles.
This server appears in the MCPBundles directory. Verify you operate it to take over the listing — name, description, logo, contact email, and skill content. We email a 6-digit code to a maintainer address your server publishes in /.well-known/security.txt or /.well-known/mcpbundles.json. Free, takes about a minute.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
Request removal from the MCPBundles directory. This does not shut down or change your MCP server — we stop showing it on MCPBundles.
MCPBundles is an independent platform built on the open Model Context Protocol standard. Not affiliated with Anthropic PBC or Claude.