Connect Claude to Your Bookmarks with MCP

Claude's custom connectors can call Save This One from Claude on the web and Claude Desktop. This is a remote connection: Anthropic's cloud connects to Save This One's public Streamable HTTP endpoint, so there is no local process, API token, or claude_desktop_config.json to maintain.

Before you connect

• MCP endpoint: https://mcp.savethisone.com/mcp
• Authentication: browser-based OAuth with PKCE. Sign in to the Save This One account whose library Claude should use.
• Plans: Anthropic currently documents custom connectors for Free, Pro, Max, Team, and Enterprise. Free is limited to one custom connector. On Team and Enterprise, an Owner or Primary Owner must add the connector before members can connect it. Availability and labels can still vary during the beta.
• Trust boundary: this is a custom, not Anthropic-verified, connector. Tool inputs go to Save This One and tool results return to Claude.

Personal plans: add the connector

1. Open Claude's connector settings, or go to Customize → Connectors.
2. Choose Add custom connector (in some versions, Add → Custom → Web).
3. Name it Save This One and enter:

``text https://mcp.savethisone.com/mcp ``

1. Leave advanced client-ID/client-secret fields empty. Save This One supports OAuth client discovery/registration; you should not paste a Save This One password or invent a bearer token.
2. Click Connect. In the browser window, sign in to Save This One and approve access. Return to Claude when it reports the connector is connected.
3. Start a new conversation if an already-open conversation does not show the new tools.

Team and Enterprise: owner setup

An owner first opens Organization settings → Connectors, chooses Add → Custom → Web, and enters the endpoint above. Each member then opens Customize → Connectors and selects Connect to complete OAuth for their own Save This One account. Provisioning the server does not share one member's bookmark library with another member.

Verify the account and tools

Start read-only and be explicit about the connector:

Use the Save This One whoami tool. Do not change anything.

Then test retrieval:

Use list_tags, then use search_bookmarks to find up to five active bookmarks about database indexing. Include each title, URL, and tags. Do not save, tag, archive, or delete anything.

Claude should expose these exact server tools:

Read-only	Changes data
whoami, list_bookmarks, search_bookmarks, get_bookmark, list_tags, list_comments	save_bookmark, archive_bookmark, delete_bookmark, create_tag, delete_tag, tag_bookmarks, add_comment, delete_comment

list_bookmarks can select active or archived items, filter by one tag, and paginate. search_bookmarks searches active bookmarks by title, description, URL, domain, and site name; it is keyword substring search, not semantic search. Use a result's bookmark ID with detail or mutation tools.

Claude workflows that fit the tool surface

Turn research into a reading list

Search my Save This One library for passkeys. List what is already saved. For the three URLs in this message that are missing, show me the proposed URL and tags first; after I approve, save them with the tag auth-research.

Saving fetches title, description, and reader metadata. An already-saved URL returns the existing item and does not duplicate it.

Review without mutating

List up to 20 bookmarks tagged launch, newest first. Group them into “read now” and “reference,” using only returned metadata. Do not alter my library.

Add durable context

Find my bookmark for the MCP authorization specification. Show its ID and existing comments. Ask before adding the comment “Check protected-resource metadata before implementation.”

Clean up safely

Find active bookmarks from example.com. Present IDs and titles. Recommend which could be archived, but do not call any write tool until I approve the exact IDs. Never permanently delete them.

Permissions and destructive actions

OAuth scopes identify the signed-in account; they are not a per-tool read-only grant. Apply least privilege inside Claude:

• Disable change tools in the connector's tool controls when you only need research, if those controls are available in your Claude plan/workspace.
• Ask Claude to preview bookmark IDs, tag names, and comment text before a write.
• Prefer reversible archive_bookmark over delete_bookmark.
• Treat delete_bookmark, delete_tag, and delete_comment as destructive. Deleting a bookmark also removes its tag links and comments; deleting a tag removes it from every bookmark.
• add_comment is not idempotent: retrying can create duplicate comments. Check list_comments after a timeout before trying again.
• Tool annotations guide the client, but they do not replace reviewing a confirmation dialog.

Troubleshooting

There is no Add button. On Team or Enterprise, ask an owner to provision the connector. On Free, remove an unused custom connector if you already reached the one-connector limit.

OAuth never starts or returns “couldn't register.” Confirm the endpoint ends in /mcp, remove the connector, and add it again with the advanced OAuth credential fields blank. Allow pop-ups and cross-site redirects for the sign-in attempt.

whoami shows the wrong account. Disconnect the connector, sign out of the unintended Save This One/Clerk session in the browser, then reconnect. Do not test writes until whoami is correct.

The connector is connected but tools are absent. Enable Save This One for the conversation, check whether an organization owner disabled its tools, and start a new chat. Disconnect/reconnect to refresh the server's tool catalog.

Calls say Unauthorized. The OAuth token may have expired or been revoked. Use Disconnect, then Connect to authorize again; do not put credentials in the conversation.

Claude cannot find an expected item. Search only covers active bookmarks. Ask for list_bookmarks with archived: true, check spelling with list_tags, or use smaller keyword fragments.

Official references

• Anthropic: custom connectors using remote MCP
• Anthropic: Claude Code and MCP (a separate client and configuration path)
• MCP authorization specification