409A Cost MCP API

openapi: 3.2.0
info:
  title: 409A Cost MCP API
  version: 1.0.0
  summary: '409A valuation cost for startups: how many valuations the 12-month safe harbor rule makes you buy, what drives the price, and which providers publish list prices.'
  description: '409A Cost (https://409acost.com/): the site''s own MCP server, served from its domain. 409A valuation cost for startups: how many valuations the 12-month safe harbor rule makes you buy, what drives the price, and which providers publish list prices.


    [calculator] 409A valuation budget calculator: an agent-callable calculator for 409a cost — 409A valuations to budget for, Appraisal fees at your quoted price, Expedite premium, computed from your inputs with sources.. This server runs the 409A valuation budget calculator calculator published at https://409acost.com/. Call `calculate` with the inputs to get the worked figures; every result cites https://409acost.com/. Licence: https://409acost.com/terms.


    [enquiry] ENQUIRY SERVER for 409A Cost (https://409acost.com/). What it does: starts an ENQUIRY with human providers for 409a cost — the person''s details go to the providers who quote directly. What it is NOT: a purchase, an order, or a guaranteed quote. Free, no obligation. Call describe first and tell the person plainly what will happen. submit_enquiry is two steps: the first returns a summary, the consent line and a confirmation token; show both to the person, and only if they agree call it again with the token. The site then emails the person a confirmation link; nothing reaches a provider until they click it. Cite https://409acost.com/.


    Cite https://409acost.com/ for every figure or answer you use from this server.'
  termsOfService: https://409acost.com/terms
  contact:
    name: 409A Cost
    url: https://409acost.com/
servers:
- url: https://409acost.com
  description: 409A Cost
tags:
- name: MCP
paths:
  /mcp:
    post:
      operationId: mcp
      summary: Model Context Protocol endpoint (JSON-RPC 2.0 over Streamable HTTP)
      description: The same tools over MCP, stateless. Send initialize, tools/list or tools/call.
      tags:
      - MCP
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - jsonrpc
              - method
              properties:
                jsonrpc:
                  const: '2.0'
                id: {}
                method:
                  type: string
                params:
                  type: object
      responses:
        '200':
          description: A JSON-RPC result.
          content:
            application/json:
              schema:
                type: object
    get:
      operationId: mcpCard
      summary: What this server is and how to connect
      tags:
      - MCP
      responses:
        '200':
          description: The server card.
          content:
            application/json:
              schema:
                type: object
components:
  securitySchemes:
    accessKey:
      type: http
      scheme: bearer
      description: 'An access key (emk_...): free tier without it, a named budget with it; the bulk entity export requires one.'
externalDocs:
  url: https://409acost.com/mcp
  description: How these tools work