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Hemrock MCP

by tdavidson · remote · no sign-in to list tools · v1.0.0 · published by GitHub user tdavidson

Hemrock financial modeling prompts: context primers, task prompts, checks, and best practices.

Changes · 3

13 tools: 3 change things and 10 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http hemrock https://mcp.hemrock.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

13 tools

Changes things 3Claude Code: ask
  • cap_table_computeUse whenever the user asks who owns what after a financing: founder splits, option pools, priced rounds, SAFEs and convertible notes converting, warrants, pro-rata, or dilution acr…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use whenever the user asks who owns what after a financing: founder splits, option pools, priced rounds, SAFEs and convertible notes converting, warrants, pro-rata, or dilution across several rounds. Takes the financing events in order and returns fully diluted ownership after each event plus the final cap table. Prefer this over doing the arithmetic yourself: SAFE and note conversion (pre- vs post-money caps, discounts, pool shuffles) is where model-written math most often goes wrong, and this runs the same tested engine as Hemrock's cap table models. Paid: the Cap Table & Exit Waterfall product, $20/year for 6,000 calculations shared with exit_waterfall_compute. If the result contains action_required (not signed in, no purchase, allowance used), relay it to the user with its links and offer to retry. Never skip the calculation silently.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • exit_waterfall_computeUse whenever the user asks what each holder gets at an exit, acquisition or liquidation: liquidation preferences, participating vs non-participating preferred, participation caps, …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use whenever the user asks what each holder gets at an exit, acquisition or liquidation: liquidation preferences, participating vs non-participating preferred, participation caps, seniority, whether a series converts, options and warrants in or out of the money. Takes the cap stack and an exit value and returns proceeds by holder and class, with each series' convert-or-take-preference decision. Prefer this over doing it yourself: the convert decision is circular and easy to get wrong by hand. Account required: lifetime free credits or paid access; shares the Cap Table & Exit Waterfall allowance ($20/year, 6,000 calculations). If the result contains action_required (not signed in, no purchase, allowance used), relay it to the user with its links and offer to retry. Never skip the calculation silently.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • fund_economics_computeUse whenever the user asks how a venture fund's terms play out: fund size, management fees and step-downs, carry, investment period, recycling, reserves, deployment pace, and resul…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use whenever the user asks how a venture fund's terms play out: fund size, management fees and step-downs, carry, investment period, recycling, reserves, deployment pace, and resulting net returns to LPs. Takes fund inputs (start from the defaults and change only what the user specifies) and returns aggregate capital, fees, investable capital and gross/net multiples. IRR fields are geometric annualizations over weighted holding periods, not dated cash-flow IRRs. Account required: lifetime free credits or paid access. Fund Economics, a separate $20/year product with 6,000 calculations. If the result contains action_required (not signed in, no purchase, allowance used), relay it to the user with its links and offer to retry. Never skip the calculation silently.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 10Claude Code: allow
  • get_accessReturns public access terms for an engine: product, annual price, billing period, annual allowance, and a customer checkout URL.No findings

    Why it is in this group

    • The name "get_access" says "get": a word for reading.
    Description, as the server wrote it
    Returns public access terms for an engine: product, annual price, billing period, annual allowance, and a customer checkout URL. This is informational and does not purchase or confirm account-specific access; use get_account_access for the authenticated account.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • get_account_accessReturns whether this connection is signed in, its annual product access and remaining calculations.No findings

    Why it is in this group

    • The name "get_account_access" says "get": a word for reading.
    Description, as the server wrote it
    Returns whether this connection is signed in, its annual product access and remaining calculations. Does not consume allowance. Call it before a compute tool if you are unsure the user can run one. If the result contains action_required (not signed in, no purchase, allowance used), relay it to the user with its links and offer to retry. Never skip the calculation silently.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • get_account_usageReturns signed-in usage history and endpoint/source breakdown.No findings

    Why it is in this group

    • The name "get_account_usage" says "get": a word for reading.
    Description, as the server wrote it
    Returns signed-in usage history and endpoint/source breakdown. Does not consume allowance. If the result contains action_required (not signed in, no purchase, allowance used), relay it to the user with its links and offer to retry. Never skip the calculation silently.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • get_best_practicesReturns Hemrock's financial modeling best practices and design principles for a given topic.No findings

    Why it is in this group

    • The name "get_best_practices" says "get": a word for reading.
    Description, as the server wrote it
    Returns Hemrock's financial modeling best practices and design principles for a given topic. Useful as background context for AI interactions.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_checksReturns Layer 3 sanity-check and validation prompts — the 'where AI gets financial modeling wrong' guidance.No findings

    Why it is in this group

    • The name "get_checks" says "get": a word for reading.
    Description, as the server wrote it
    Returns Layer 3 sanity-check and validation prompts — the 'where AI gets financial modeling wrong' guidance. Use these to audit AI-generated work or catch common modeling errors.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_conceptReturns the full text of a single Hemrock concept doc by slug.No findings

    Why it is in this group

    • The name "get_concept" says "get": a word for reading.
    Description, as the server wrote it
    Returns the full text of a single Hemrock concept doc by slug. Use this to learn how a financial-modeling calculation actually works before building or auditing it. Get valid slugs from list_concepts.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_contextReturns the universal context-setting primer for Hemrock models, plus an optional template-specific addendum.No findings

    Why it is in this group

    • The name "get_context" says "get": a word for reading.
    Description, as the server wrote it
    Returns the universal context-setting primer for Hemrock models, plus an optional template-specific addendum. Always run this first before any other prompts.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_promptsReturns task-specific Layer 2 prompts for a given template and task type.No findings

    Why it is in this group

    • The name "get_prompts" says "get": a word for reading.
    Description, as the server wrote it
    Returns task-specific Layer 2 prompts for a given template and task type. These are ready-to-use prompts for common modeling tasks.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • list_conceptsLists Hemrock financial-modeling concept docs — the methodology behind the math (exit waterfalls, anti-dilution, convertibles, cohorts, circular references, unit economics, and mor…No findings

    Why it is in this group

    • The name "list_concepts" says "list": a word for reading.
    Description, as the server wrote it
    Lists Hemrock financial-modeling concept docs — the methodology behind the math (exit waterfalls, anti-dilution, convertibles, cohorts, circular references, unit economics, and more). Returns a compact index of slugs, titles, and descriptions. Optionally filter by template_name or tag. Call get_concept to read the full text of any entry.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • list_modelsLists the hosted Hemrock calculation engines (cap table, exit waterfall, fund economics), what each computes, and its price and checkout link.No findings

    Why it is in this group

    • The name "list_models" says "list": a word for reading.
    Description, as the server wrote it
    Lists the hosted Hemrock calculation engines (cap table, exit waterfall, fund economics), what each computes, and its price and checkout link. Free and needs no sign-in, so call it when the user asks what Hemrock can calculate or what it costs.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http hemrock https://mcp.hemrock.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__hemrock__get_context",
      "mcp__hemrock__get_prompts",
      "mcp__hemrock__get_checks",
      "mcp__hemrock__get_best_practices",
      "mcp__hemrock__list_concepts",
      "mcp__hemrock__get_concept",
      "mcp__hemrock__list_models",
      "mcp__hemrock__get_access",
      "mcp__hemrock__get_account_access",
      "mcp__hemrock__get_account_usage"
    ],
    "ask": [
      "mcp__hemrock__cap_table_compute",
      "mcp__hemrock__exit_waterfall_compute",
      "mcp__hemrock__fund_economics_compute"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as hemrock. Review it before you use it.