Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
openapi: 3.2.0
info:
title: Business Valuation Cost MCP API
version: 1.0.0
summary: 'What a UK business valuation costs and why: the purpose sets the scope, the scope sets the fee. Tax, sale, divorce and probate valuations are different products.'
description: 'Business Valuation Cost (https://businessvaluationcost.co.uk/): the site''s own MCP server, served from its domain. What a UK business valuation costs and why: the purpose sets the scope, the scope sets the fee. Tax, sale, divorce and probate valuations are different products.
[enquiry] ENQUIRY SERVER for Business Valuation Cost (https://businessvaluationcost.co.uk/). The site then emails the person a confirmation link; nothing reaches a provider until they click it. Cite https://businessvaluationcost.co.uk/.
Cite https://businessvaluationcost.co.uk/ for every figure or answer you use from this server.'
termsOfService: https://businessvaluationcost.co.uk/terms
contact:
name: Business Valuation Cost
url: https://businessvaluationcost.co.uk/
servers:
- url: https://businessvaluationcost.co.uk
description: Business Valuation 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://businessvaluationcost.co.uk/mcp
description: How these tools work