Crunch Accounting (crunch-mcp)

Name: Crunch Accounting (crunch-mcp)
Author: mattoddie

de mattoddieversión 0.4.1i★ –iSe ejecuta en tu computadora

Nombre en el registroio.github.mattoddie/crunch-mcp

Instalar

Resumen

Descripción del creador (original en inglés)

Work with your Crunch Accounting books: expenses, receipts, invoices, clients, suppliers and banking

Los tres pilares de PopNx MCP

Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.

Opinión de usuariosiAún no hay reseñasLas reseñas se abrirán junto con las cuentas en una etapa posterior
Nuestras revisiones básicasi1 de 1 superadasRevisado con información pública; el código aún no se ha escaneado
UsoiAún sin medir★ –

Qué puedes hacer con él

Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.

Conexión: Se ejecuta en tu computadora
Transporte: stdio
Categoría: Contabilidad, finanzas e impuestos
Debes completar: CRUNCH_CLIENT_ID, CRUNCH_CLIENT_SECRET, CRUNCH_REFRESH_TOKEN

Instalación

Elige la app de IA que usas y copia la configuración.

Antes de instalar

Revisiones básicas: 1 de 1 superadas
Se ejecuta en tu computadora con los permisos de tu usuario (archivos, red, apps).
Debes completar tú: MCP_TRANSPORT, CRUNCH_CLIENT_ID, CRUNCH_CLIENT_SECRET, CRUNCH_REDIRECT_URI, CRUNCH_REFRESH_TOKEN, CRUNCH_ALLOW_WRITES, CRUNCH_ALLOW_DELETES, CRUNCH_ALLOW_EMAIL, CRUNCH_TOOLSETS, CRUNCH_FILES_DIR, CRUNCH_AUDIT_LOG

Los valores marcados como secretos son llaves de tu cuenta. Nunca los compartas ni los pegues en un chat.

Necesitas

DockerDocker instalado

¿Qué app usas?

ClaudeClaude CodeCursorVS CodeChatGPT

Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.

Descargar el archivo .mcpb del creador

El enlace lleva al archivo del propio creador; no lo alojamos ni lo reempaquetamos. Abre el archivo y Claude Desktop lo instalará.

Ejecuta esto en tu terminal

claude mcp add crunch --env MCP_TRANSPORT=your-value --env CRUNCH_CLIENT_ID=your-value --env CRUNCH_CLIENT_SECRET=your-value --env CRUNCH_REDIRECT_URI=your-value --env CRUNCH_REFRESH_TOKEN=your-value --env CRUNCH_ALLOW_WRITES=your-value --env CRUNCH_ALLOW_DELETES=your-value --env CRUNCH_ALLOW_EMAIL=your-value --env CRUNCH_TOOLSETS=your-value --env CRUNCH_FILES_DIR=your-value --env CRUNCH_AUDIT_LOG=your-value -- docker run -i --rm -e MCP_TRANSPORT -e CRUNCH_CLIENT_ID -e CRUNCH_CLIENT_SECRET -e CRUNCH_REDIRECT_URI -e CRUNCH_REFRESH_TOKEN -e CRUNCH_ALLOW_WRITES -e CRUNCH_ALLOW_DELETES -e CRUNCH_ALLOW_EMAIL -e CRUNCH_TOOLSETS -e CRUNCH_FILES_DIR -e CRUNCH_AUDIT_LOG ghcr.io/mattoddie/crunch-mcp:0.4.1

Completa los valores vacíos antes de ejecutarlo.

Abrir en Cursor

O copia la configuración tú

Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json

{
  "mcpServers": {
    "crunch": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "MCP_TRANSPORT",
        "-e",
        "CRUNCH_CLIENT_ID",
        "-e",
        "CRUNCH_CLIENT_SECRET",
        "-e",
        "CRUNCH_REDIRECT_URI",
        "-e",
        "CRUNCH_REFRESH_TOKEN",
        "-e",
        "CRUNCH_ALLOW_WRITES",
        "-e",
        "CRUNCH_ALLOW_DELETES",
        "-e",
        "CRUNCH_ALLOW_EMAIL",
        "-e",
        "CRUNCH_TOOLSETS",
        "-e",
        "CRUNCH_FILES_DIR",
        "-e",
        "CRUNCH_AUDIT_LOG",
        "ghcr.io/mattoddie/crunch-mcp:0.4.1"
      ],
      "env": {
        "MCP_TRANSPORT": "your-value",
        "CRUNCH_CLIENT_ID": "your-value",
        "CRUNCH_CLIENT_SECRET": "your-value",
        "CRUNCH_REDIRECT_URI": "your-value",
        "CRUNCH_REFRESH_TOKEN": "your-value",
        "CRUNCH_ALLOW_WRITES": "your-value",
        "CRUNCH_ALLOW_DELETES": "your-value",
        "CRUNCH_ALLOW_EMAIL": "your-value",
        "CRUNCH_TOOLSETS": "your-value",
        "CRUNCH_FILES_DIR": "your-value",
        "CRUNCH_AUDIT_LOG": "your-value"
      }
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Abrir en VS Code

O copia la configuración tú

Pégalo en .vscode/mcp.json de tu proyecto

{
  "servers": {
    "crunch": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "MCP_TRANSPORT",
        "-e",
        "CRUNCH_CLIENT_ID",
        "-e",
        "CRUNCH_CLIENT_SECRET",
        "-e",
        "CRUNCH_REDIRECT_URI",
        "-e",
        "CRUNCH_REFRESH_TOKEN",
        "-e",
        "CRUNCH_ALLOW_WRITES",
        "-e",
        "CRUNCH_ALLOW_DELETES",
        "-e",
        "CRUNCH_ALLOW_EMAIL",
        "-e",
        "CRUNCH_TOOLSETS",
        "-e",
        "CRUNCH_FILES_DIR",
        "-e",
        "CRUNCH_AUDIT_LOG",
        "ghcr.io/mattoddie/crunch-mcp:0.4.1"
      ],
      "env": {
        "MCP_TRANSPORT": "your-value",
        "CRUNCH_CLIENT_ID": "your-value",
        "CRUNCH_CLIENT_SECRET": "your-value",
        "CRUNCH_REDIRECT_URI": "your-value",
        "CRUNCH_REFRESH_TOKEN": "your-value",
        "CRUNCH_ALLOW_WRITES": "your-value",
        "CRUNCH_ALLOW_DELETES": "your-value",
        "CRUNCH_ALLOW_EMAIL": "your-value",
        "CRUNCH_TOOLSETS": "your-value",
        "CRUNCH_FILES_DIR": "your-value",
        "CRUNCH_AUDIT_LOG": "your-value"
      }
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.

Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.

Valores que debes completar

MCP_TRANSPORT env
Serve MCP over stdio. The image serves HTTP by default.
CRUNCH_CLIENT_ID obligatorio env
The client ID Crunch gave you when it approved your API application.
CRUNCH_CLIENT_SECRET secreto env
Only for confidential clients, which Crunch issues a secret. Leave empty for a public client.
CRUNCH_REDIRECT_URI env
Only if your API account has a redirect URI registered with Crunch. Empty means http://127.0.0.1:8976/callback.
CRUNCH_REFRESH_TOKEN secreto env
Optional refresh token to start from instead of logging in. Don't use it anywhere else afterwards.
CRUNCH_ALLOW_WRITES env
Allow creating and changing records, including issuing invoices. Off means read-only.
CRUNCH_ALLOW_DELETES env
Also allow deleting records and removing payments. Needs CRUNCH_ALLOW_WRITES.
CRUNCH_ALLOW_EMAIL env
Also allow emailing invoices and turning on payment reminders. Needs CRUNCH_ALLOW_WRITES.
CRUNCH_TOOLSETS env
Optional comma-separated toolsets to expose fewer tools, e.g. account,reference,expenses. Empty means all.
CRUNCH_FILES_DIR env
Optional folder, inside the container, for receipts to attach and files to save. Mount it too. Empty turns it off.
CRUNCH_AUDIT_LOG env
Optional audit log of every change: stderr, or a file path inside the container. Empty turns it off.

Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.

Qué puede hacer

Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.

Revisiones básicasi

Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 8 nov 2026

✓ Superada
El creador coincide con el repo
El nombre en el registro se verificó con la cuenta de GitHub mattoddie, dueña del repo
… Aún sin revisar
Sigue en mantenimiento
Todavía no hemos leído este repo en GitHub
… Aún sin revisar
Tiene licencia
Todavía no hemos leído este repo en GitHub
– No aplica
El endpoint responde
Este se ejecuta en tu computadora; no hay endpoint en internet
– No aplica
Inicio de sesión con OAuth
Se ejecuta en tu computadora y usa ajustes locales en su lugar
… Aún sin revisar
Sin instrucciones ocultas en las descripciones de herramientas
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet

Comparado con otros en Contabilidad, finanzas e impuestosi

Más estrellas que el 0% de los otros 2911 servidores de esta categoría
Publicado en el registro más recientemente que el 66% de los otros 2911 servidores de esta categoría
Revisiones básicas iguales o mejores que el 100% de los otros 2911 servidores de esta categoría

Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.

Preguntas frecuentes

¿Es seguro Crunch Accounting (crunch-mcp)?

Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.

¿Qué claves o códigos necesita?

Debes completar: CRUNCH_CLIENT_ID, CRUNCH_CLIENT_SECRET, CRUNCH_REFRESH_TOKEN

¿Se ejecuta en mi computadora o en la nube?

Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).

¿Sigue en mantenimiento?

El repo de GitHub cambió por última vez –, y la última versión (0.4.1) llegó al registro hace 16 días.

¿Qué apps pueden usarlo?

Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Docker, MCPB en tu computadora.

¿Qué puedo usar en su lugar?

En la misma categoría: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternativas

Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.

Cómo leer una tarjeta:★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi

Finance Toolkit

de JerBouma

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computadora o nube★ 5496MITActualizado ayer

Instalar

SolidInvoice

de SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Se ejecuta en la nube★ 981MITActualizado hace 8 días

Instalar

Korea Tax Calculator

de UpstageAI

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Se ejecuta en tu computadora★ 97MITActualizado anteayer

Instalar

README del creador

Abrir el README

Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.

crunch-mcp

Talk to your books.

An open-source Model Context Protocol server for Crunch Accounting, the UK online accounting service. It lets Claude and other AI assistants read and, if you allow it, update your expenses, receipts, invoices, clients, suppliers and bank accounts, all from one small Docker container.

[crunch-mcp.mattoddie.dev](https://crunch-mcp.mattoddie.dev)

Quick start · Documentation · Tool reference · Contributing

"How's the business looking this month?"

*You have £18,240 across your two bank accounts and £312 on the company credit card. Three sales invoices are unpaid, £7,800 in total. INV-0042 to Example Client Ltd (£2,400) is 12 days overdue; the other two aren't due yet. On the spending side, four September expenses have no receipt attached and one bill from Example Hosting Ltd (£96) is still unpaid. Want me to draft a polite chaser for INV-0042, or list the expenses that are missing receipts?*

Ask about your business in plain English. The assistant picks from 70 tools to look things up and, if you allow it, make changes. Some examples:

🩺 *"Give me a health check of the business."*
🧾 *"Here's a receipt for a train ticket to Leeds. Record it as an expense paid from the business account."*
📬 *"Which invoices are overdue? Draft a chasing email for each customer."*
📊 *"Summarise income and spending for the last quarter, with an estimate of the VAT."*
🔍 *"Which expenses this year have no receipt attached?"*
📝 *"Invoice Example Client Ltd for 5 days of consulting at £450 a day, on 30-day terms."*

Highlights

🐳 Docker-first and tiny. One image (ghcr.io/mattoddie/crunch-mcp) for linux/amd64 and linux/arm64, about 21 MB. It's a single static Go binary on a distroless base, with no shell or package manager, running as a non-root user. It serves Streamable HTTP for a long-running service, or stdio for docker run -i. You can also run the binary on its own.
🛡️ Safe by default. The server is read-only unless you turn on writes. Deleting needs a second switch, and emailing invoices or payment reminders to customers needs a third. The switches also hold inside request bodies and the raw API tool, and the HTTP server requires a bearer token. Tools that aren't allowed aren't registered at all, and destructive tools, such as deletes and issuing an invoice, are labelled so your MCP client asks before running them.
🔑 Least-privilege login. It logs in with Crunch's own OAuth 2.0 flow (with PKCE) and asks only for the scopes your settings need. Tokens never appear in tool output.
🔄 Stays logged in. Crunch rotates refresh tokens, and reusing an old one revokes your login. crunch-mcp saves each new token before using it and never refreshes twice at once, so it keeps working across restarts.
✏️ Careful updates. Changing an expense or invoice fetches the current record and changes only what you asked, so payments and attachments are never dropped by accident.
🔍 Preview and audit. Every tool that changes something takes dry_run: true to show the request it would send, with a field-by-field diff for updates, without changing anything. CRUNCH_AUDIT_LOG records each change in a JSON Lines audit log.
🖥️ One-click Claude Desktop install. Each release has an extension bundle (.mcpb) for macOS, Windows and Linux, with a settings form and no Docker needed.
📎 Receipts and PDFs. Attach receipts and timesheets, download receipts as images the assistant can read, and fetch invoice PDFs.
🎛️ Tunable. Expose only the toolsets you need, which keeps the model's context small and focused. List tools take search, fields and limit to fetch only what's needed.
🧪 Tested. The test suite runs against a mock Crunch API and OAuth server on every build.

Quick start

Using Claude Desktop? Download the extension bundle for your computer from the latest release, open it, enter your Crunch client ID and ask Claude to *"log in to Crunch"*. See Claude Desktop. The steps below set up the Docker server for every other client.

You need Docker, a Crunch account, Crunch API access and an MCP client such as Claude Code.

1. Get API access. Apply for access to Crunch's public API through the application form linked from Crunch's developer documentation. Crunch sends you a client ID, and a client secret if you're set up as a confidential client. There's no sandbox, so a free Crunch account is a good place to try things. Getting started has the details.

2. Set up the server.

mkdir crunch-mcp && cd crunch-mcp

curl -fsSLO https://raw.githubusercontent.com/mattoddie/crunch-mcp/main/compose.yaml curl -fsSL https://raw.githubusercontent.com/mattoddie/crunch-mcp/main/example.env -o .env

Edit .env: set CRUNCH_CLIENT_ID (and CRUNCH_CLIENT_SECRET if you have one)

and a random MCP_AUTH_TOKEN, which the HTTP server requires (e.g. `openssl rand -hex 32`)

3. Log in to Crunch and start the server.

docker compose run --rm -p 127.0.0.1:8976:8976 crunch-mcp login   # open the URL it prints and click Allow

docker compose up -d

If your browser isn't on the Docker host, the page after Allow won't load. That's fine: copy the URL from the address bar and paste it into the terminal.

4. Connect your assistant.

claude mcp add --transport http crunch http://<docker-host>:8080/mcp \

--header "Authorization: Bearer "

Now ask *"How's my business doing?"* in Claude Code.

Using Claude Desktop, VS Code, Cursor or Codex? See Connecting MCP clients. Prefer not to run a service? Use stdio mode with docker run -i or the local binary.

crunch-mcp is listed in the official MCP Registry as io.github.mattoddie/crunch-mcp, so clients that install servers from the registry can set it up for you, with the Docker image in stdio mode or an extension bundle.

Turning on changes

Out of the box the assistant can look but not touch. To let it make changes, add these to .env:

CRUNCH_ALLOW_WRITES=true    # create and update expenses, invoices, clients, suppliers, payments, attachments…

CRUNCH_ALLOW_DELETES=true # also allow deleting records and removing payments (needs writes) CRUNCH_ALLOW_EMAIL=true # also allow emailing invoices and payment reminders to customers (needs writes) CRUNCH_TOOLSETS=account,reference,expenses,invoices,clients,suppliers # optional: expose fewer tools CRUNCH_AUDIT_LOG=stderr # optional: log every change (or an absolute file path; see docs/configuration.md)

The login needs matching scopes, so log in again after turning on writes or deletes:

docker compose stop

docker compose run --rm -p 127.0.0.1:8976:8976 crunch-mcp login docker compose up -d

Ask for a dry run first when it matters: *"Record that receipt, but show me a dry run first."*

Read Security before turning on writes for your real books.

What it can do

Toolset	What's covered
`account`	Login status and the OAuth login flow, the logged-in user, company details (VAT number and scheme, addresses) and a one-call business overview
`reference`	The values Crunch expects: expense types, VAT types, payment methods, countries, open accounting periods, directors and employees
`banking`	Bank accounts and credit cards: balances, details, payments recorded against them, opening balances, default accounts, archiving
`clients`	Clients (the customers you invoice): list, look up, create, update and delete
`suppliers`	Suppliers: list, look up, create, update, archive and delete
`expenses`	Expenses: list and filter, totals, create with lines, payments and receipts, update, record and remove payments, attach and download receipts, delete
`recurring`	Recurring expenses that Crunch creates on a schedule: list, create, pause or change, delete
`invoices`	Sales invoices: list and filter, totals, create drafts, update, issue, email to the customer, record and remove payments, attachments, PDF download, delete
`raw`	An escape hatch that calls any Crunch public API endpoint

See the [tool reference](docs/tools.md) for every tool and argument. Ready-made prompts like business_health_check, record_receipt and chase_overdue_invoices chain the tools together for common jobs.

Documentation

The docs are also published at [crunch-mcp.mattoddie.dev/docs](https://crunch-mcp.mattoddie.dev/docs/), with search.


🚀 Getting started	Step-by-step setup, from API access to first question
🔌 Connecting MCP clients	Claude Code, Claude Desktop, VS Code, Cursor, Codex, stdio mode
⚙️ Configuration	Every environment variable, how login and tokens work, Docker secrets, toolsets
🐳 Deployment	Compose, image tags, upgrades, TLS reverse proxy, hardening, running without Docker
💬 Using crunch-mcp	Example conversations, prompts, how changes, receipts and PDFs work
🧰 Tool reference	Every tool and prompt, generated from the code
🛡️ Security	Threat model, least privilege, token storage, safe write setups
📡 Compatibility	The Crunch API, its limits, and known gaps
🩹 Troubleshooting	Common errors and how to fix them
🛠️ Development	Architecture, adding a tool, testing

Contributing

Contributions are very welcome, whether that's bug reports, docs or new tools. Read the contributing guide to get started, and please follow the code of conduct. To report a vulnerability, see the security policy. Please don't open a public issue for one.

License

*crunch-mcp is an independent community project. It is not affiliated with, endorsed by or sponsored by Crunch (E-Crunch Ltd). "Crunch" is a trademark of E-Crunch Ltd.*

Crunch Accounting (crunch-mcp)

Resumen

Los tres pilares de PopNx MCP

Qué puedes hacer con él

Instalación

Antes de instalar

Valores que debes completar

Qué puede hacer

Revisiones básicasi

El creador coincide con el repo

Sigue en mantenimiento

Tiene licencia

El endpoint responde

Inicio de sesión con OAuth

Sin instrucciones ocultas en las descripciones de herramientas

Comparado con otros en Contabilidad, finanzas e impuestosi

Preguntas frecuentes

Alternativas

Finance Toolkit

SolidInvoice

Korea Tax Calculator

README del creador

crunch-mcp

Highlights

Quick start

Edit .env: set CRUNCH_CLIENT_ID (and CRUNCH_CLIENT_SECRET if you have one)

and a random MCP_AUTH_TOKEN, which the HTTP server requires (e.g. openssl rand -hex 32)

Turning on changes

What it can do

Documentation

Contributing

License

and a random MCP_AUTH_TOKEN, which the HTTP server requires (e.g. `openssl rand -hex 32`)