We walk these hostsSo your MCP can run.

Sixteen named hosts on the public ledger. Click a mark for the captured profile: how it announces, what it hides, what to change in your MCP, and what we have not measured.

Cover your blind spots

Supported hosts

Open a host. Hosted Claude and ChatGPT stay off the ledger until login walks are honest.

Open a host. The dossier is identity, protocol, the eight gates in plain language, what to change, and what we have not measured.

Where they differ

Configured headers, walks without a key, and catalog size are the same on every host we list: send the key, send a key if none is set, no size cap we know. The split is pages, app-only tools, structured output, Mcp-Param, and missing arguments.

Host	Tool list pages	App-only tools	Structured output	Mcp-Param header	Missing required args
Perplexity	Not measured	Hides them	Accepts text	Does not mirror	Passes through
Mistral	Follows pages	Hides them	Accepts text	Does not mirror	Passes through
Slackbot	Not measured	Hides them	Accepts text	Does not mirror	Passes through
Notion	Not measured	Hides them	Accepts text	Does not mirror	Passes through
Claude Code	Follows pages	Shows them	Accepts text	Mirrors it	Passes through
Cursor	First page only	Shows them	Checks if advertised	Does not mirror	Becomes {}
Cursor CLI	Not measured	Not measured	Not measured	Does not mirror	Becomes {}
VS Code	Follows pages	Shows them	Accepts text	Does not mirror	Passes through
Copilot	Follows pages	Hides them	Accepts text	Does not mirror	Passes through
Copilot CLI	Follows pages	Hides them	Accepts text	Does not mirror	Stringifies some anyOf
Codex	First page only	Hides them	Accepts text	Does not mirror	Becomes {}
Windsurf	Follows pages	Shows them	Accepts text	Does not mirror	Becomes {}
Cline	Not measured	Hides them	Accepts text	Does not mirror	Becomes {}
Goose	Not measured	Hides them	Accepts text	Does not mirror	Wraps as {value}
n8n	Not measured	Hides them	Accepts text	Does not mirror	Strips extra keys
AgentCore	Not measured	Hides them	Accepts text	Does not mirror	Passes through

Supported hosts

Open a host for the captured profile. To see a server survive these hosts, run Host Compatibility.

Chat4

Coding9

Agents3

Your biggest blind spots sit outside your logs,inside hosts you don't control.

Paste the MCP URL. We walk named hosts from home internet. Reviewable record, not a status ping.

Cover your blind spots