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Connect Holded to Gemini CLI via MCP

Holded — the Spanish SMB business suite: contacts, sales and purchase documents, products, warehouses, treasury accounts and CRM funnels. REST API v1, API-key auth.

HCBy HelpCode teamUpdated 3 min read Open-source on GitHub
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Holded

Holded

Holded — the Spanish SMB business suite: contacts, sales and purchase documents, products, warehouses, treasury accounts and CRM funnels. REST API v1, API-key auth.

tools

9

Region

ES

Category

Accounting

Authentication

API Key

Required env vars

HOLDED_API_KEY
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    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Summary

Holded — the Spanish SMB business suite: contacts, sales and purchase documents, products, warehouses, treasury accounts and CRM funnels. REST API v1, API-key auth.

Guided setup

Connect Holded to Gemini in 2 minutes

Start a free trial on AnythingMCP Cloud, connect Holded in the guided setup, then add your MCP URL to Gemini. No code and no server to run.

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Example prompts for Holded

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Holded · live via MCP
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Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Holded, paste your credentials, mint an MCP API key — done. No Docker, no git clone, no local server.

Holded + Gemini

Holded — the Spanish SMB business suite: contacts, sales and purchase documents, products, warehouses, treasury accounts and CRM funnels. REST API v1, API-key auth.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

HOLDED_API_KEY

Step 1 — Get credentials

Getting a key

  1. Sign in to Holded and open Configuración → Desarrolladores → API key (Settings → Developers).
  2. Generate a key and put it in HOLDED_API_KEY. The key belongs to the account, not to a user, and carries full access to every module you have subscribed to — treat it as a password.

The key travels in a key header. Not Authorization, not a query parameter. Holded's own documentation calls it simply key.

This adapter uses Holded's v1 API (/api/invoicing/v1, /api/crm/v1), which is still served. Holded's current developer site documents a newer v2 API with Authorization: Bearer and different paths; this adapter does not use it.

…(continued in the in-app connector instructions)

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in Gemini

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

Gemini CLI reads MCP servers from ~/.gemini/settings.json (or %APPDATA%\gemini\settings.json on Windows). Add:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID",
      "headers": { "X-API-Key": "YOUR_MCP_API_KEY" }
    }
  }
}
  1. Get your MCP API key from AnythingMCP → MCP Servers → your server → API keys.
  2. Save the file and restart gemini.
  3. Run /mcp inside the Gemini CLI — Holded should be listed as available.
  4. Vertex AI Studio: pass https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID to the tools array of your request with the same X-API-Key header.

Available tools

ToolWhat it does
holded_list_contactsList contacts — customers, suppliers, leads — with their name, NIF/CIF, e-mail, address and the type flags that say which role they hold
holded_get_contactRead one contact in full: tax data, billing address, payment terms, default VAT rate and the notes recorded against them
holded_list_documentsList documents of one type — invoices, estimates, credit notes, purchase orders — with their number, date, contact, total and payment status
holded_get_documentRead one document in full: every line with its quantity, price, discount and VAT, the totals, and the payments applied against it
holded_list_productsList products and services with their SKU, name, price, cost, VAT rate and stock level
holded_list_warehousesList warehouses with their name and location, so a stock question can name the right one
holded_list_treasury_accountsList the treasury accounts (bank and cash) with their name, IBAN and current balance — the cash-position answer
holded_list_funnelsList the CRM funnels with their stages, so a pipeline question knows which stages exist before asking about leads in them
holded_list_leadsList CRM leads with their name, contact, value, funnel stage and expected close date — the sales-pipeline view

FAQ

Does Gemini 1.5 Pro or 2.x support MCP? Yes — Gemini CLI ≥ 0.4 and Vertex AI tools API both accept MCP httpUrl connectors with custom headers.

Next steps

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