PrefMark
Claude connectorCommunityAsk about your deals in Claude. PrefMark holds your investment memo, and every change Claude suggests waits in PrefMark for your review.
- Tools
- 16
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
Rank by popularity
Rank by trending score
Popularity score
Trending score
Movement is measured against our own daily snapshots, and there isn’t an earlier one to compare with yet.
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Financial servicesnot ranked by popularity · not ranked by trending score
This connector isn’t ranked by popularity, so the category’s top connectors are shown instead.
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1 | 18,371 | 0 | ||
| 2 |  Intuit QuickBooks | 17,916 | 6places down | |
| 3 | 17,803 | 0 | ||
| 4 | 17,752 | 2places down | ||
| 5 | 17,583 | 0 | ||
| 6 |  Vibe Prospecting | 17,241 | 0 | |
| 7 | 17,162 | 2places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Black Diamond | 20,930,323 | — | |
| 2 |  Amazon Selling Partner | 10,472,303 | — | |
| 3 | 4,495,836 | 5places down | ||
| 4 | 1,451,594 | 4places down | ||
| 5 |  Orion | 976,907 | 18places up | |
| 6 |  Envestnet MoneyGuide | 731,212 | — | |
| 7 | 646,040 | 9places up |
Productivitynot ranked by popularity · not ranked by trending score
This connector isn’t ranked by popularity, so the category’s top connectors are shown instead.
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1 | 24,646 | 0 | ||
| 2 | 23,900 | 0 | ||
| 3 | 22,231 | 0 | ||
| 4 |  Notion | 22,110 | 0 | |
| 5 | 21,782 | 0 | ||
| 6 | 21,673 | 0 | ||
| 7 | 20,614 | 0 |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | Amazon Selling Partner | 10,472,303 | — | |
| 2 | 8,116,794 | 33places up | ||
| 3 | 1,451,594 | 4places down | ||
| 4 | 1,126,136 | — | ||
| 5 |  ZeroBounce Official | 956,807 | — | |
| 6 | 842,156 | — | ||
| 7 |  Tineo | 757,948 | — |
Also on other marketplaces
PrefMark is a private workspace for early-stage investors. It turns a deal's materials into an investment memo with one clear stance (Greenlight, Watch or Pass), evidence you can trace, and the diligence questions that are still open.
With this connector, Claude can:
- Find a deal by name and read its stance, reasons, risks and facts, each with its evidence level.
- Tell you what changed since your last review and which questions are still open.
- Read the Investment Memo and its Quick Read.
- Add deals, save notes, and add or update diligence questions.
- Draft a rewrite of a memo section, or pass on an update from a founder.
Claude never changes your memo or your stance by itself. A rewrite or a new figure arrives in PrefMark as a suggested change, with the current text next to the new one, and nothing lands until you accept it in PrefMark. Changes to questions, notes and deal details can be undone in PrefMark.
PrefMark is in a private beta for invited investors. You need a PrefMark account to connect.
Tools
- add_deals
- add_note
- add_question
- draft_memo_edit
- get_deal
- get_evidence
- get_memo
- get_open_questions
- get_pending_changes
- get_what_changed
- list_deals
- remove_question
- resolve_deal
- submit_deal_event
- update_deal
- update_question
- Categories
- Sign-in
- Required
- Connector URL
- https://prefmark.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- September 27, 2026
- More info