Marian
A planned US home mortgage whose interest rate can only go down. Pre-launch; not lending yet.
What it does
Marian is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)Hosted endpoint
https://mcp.marianmortgage.com/mcpstreamable-http
In Claude Code: claude mcp add --transport http marian https://mcp.marianmortgage.com/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"marian": {
"url": "https://mcp.marianmortgage.com/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 1h agoONLINE Marian answered an MCP connection on 06 Nov 2026 and introduced itself as marian 0.2.0 (MCP protocol 2025-06-18).
3 tools offered to AI assistants
explain_marian· Returns Marian's published product facts: status (pre-launch, not lending in any state, not offering credit), how the down-only rate works, who it is not a fit for, and the brand line and product description. Same data as https://marianmortcompare_to_refinancing· Describes, in qualitative terms, how Marian's automatic rate resets compare with a standard fixed-rate mortgage that the borrower refinances, given the borrower's situation. Returns no rates, payments or dollar figures, because Marian has njoin_waitlist· Adds the user's email (and optional ZIP code) to the Marian waitlist. Only call this when the user has explicitly asked to join, and pass user_consent: true to confirm that. Joining the waitlist isn't an application for credit.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://mcp.marianmortgage.com/mcp | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Website | https://marianmortgage.com/agents#mcp-server | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Version | 0.2.0 | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
Change history
- NEW06 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is Marian still online?
Free alerts · no account▲ 0Do you run Marian? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of Marian?
Free · show your listingAn independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.
<a href="https://electraindex.com/mcp/marian?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/marian" alt="Listed on Electra Index"></a>Questions about Marian
How do I connect Marian?
Use the hosted endpoint https://mcp.marianmortgage.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does Marian offer?
When Electra Index connected on 06 Nov 2026, it listed 3 tools: explain_marian, compare_to_refinancing, join_waitlist. The full list is in "Live check" above.
Is Marian online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.