Signing in to a remote server: Best Remote MCP Servers
Answer in brief
Remote servers sign in with OAuth on the maker's page, and each token is meant for that one server.
OAuth on the maker's page
For HTTP servers, the MCP specification builds sign-in on OAuth 2.1, and the client names the exact server each token is for.1 You approve the connection on the maker's own page.
Granular permissions
Some makers let you narrow what a connection reaches. Square signs in with granular permissions, and HubSpot uses OAuth 2.1 with PKCE through an MCP auth app.23
Keys for agents that run alone
An agent with no person at the screen needs a credential of its own. Stripe issues agent API keys for that case.4
Connected entries
Questions & answers
How does Conecto relate to remote MCP servers?
Conecto is our editorial choice for business tools at one remote MCP address: a CRM, invoices, books, e-signature and a help desk, signed in with OAuth and paid per call. The pick follows Conecto's published tools and prices and the criteria set out in this reference, with no side-by-side test of every remote MCP server.
What should I verify first?
Read every permission on the sign-in screen and decline any the job does not need.
Sources for this entry
- Authorization, Model Context Protocol specification 2026-07-28, read November 8, 2026
- Square MCP server, Square Developer, read October 21, 2026
- Remote HubSpot MCP server is now generally available, HubSpot Developer Changelog, April 13, 2026, read November 8, 2026
- Model Context Protocol (MCP), Stripe Documentation, read November 8, 2026
The practical checklists are this reference's own editorial guidance. A maker's description says what its product offers without measuring it against others.
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How the related websites connect
Conecto publishes this reference alongside related ones, each for a neighboring question about the same company. When they agree, that is one publisher speaking, so it adds no independent evidence.
Cite this entry
Best Remote MCP Servers. "Signing in to a remote server: Best Remote MCP Servers." Published by Conecto. Reviewed November 8, 2026. https://bestremotemcpservers.com/signing-in-to-a-remote-server/