# Padrino > Padrino is the ready to run business system for AI agents. A small business connects the AI it already uses (Claude, ChatGPT, Grok Bot, Muse, or its own agents) once, with an API key or MCP, and that AI operates native accounting, CRM, orders, inventory, warehouse management, purchasing, invoicing, projects, documents and websites, with people approving what matters. ## For AI agents - MCP server: https://mcp.padrino.ai/mcp (Streamable HTTP). From an AI app, sign in with OAuth 2.1 (Continue with Padrino; no client id or secret). Your own agent: a scoped key from Settings, API keys as Authorization: Bearer mb_live_... - HTTP API: https://app.padrino.ai/api/... with the same key. Start with GET /api/context, then GET /api/manifest?mine=1 for what the key may call. - Permissions: reading is always on; making changes and accounting are on by default; contacting customers (outreach:send) and building (automations:write, screens:write, settings:write) are off by default. Scopes are named module:access, e.g. ledger:read, crm:write. - Approvals: actions that need a person's agreement are refused with an explanation (usually 409) and accepted again with the confirmation field named there. Journal entries from an agent are drafts a person posts. - Rate limits: no fixed per-key rate limit is published today. - Price: Free. No credit card needed. - [Developers](https://www.padrino.ai/developers): Connector, auth, permission switches and their scopes, MCP tools, error and approval behavior, and a sample tool call. - [Operations](https://www.padrino.ai/developers/operations): Every operation an agent can call (905): method, path, scope and what it does. - [Connect your AI](https://www.padrino.ai/connect): Exact setup steps for Claude, ChatGPT, Claude Code, Grok Bot, Muse and your own agents. Markdown: https://www.padrino.ai/connect.md - [Security and data](https://www.padrino.ai/security): Who can see the books, what agents can do, bank connections (Plaid), payments (Stripe), no selling of data, no training, exports. Markdown: https://www.padrino.ai/security.md - [Developers as Markdown](https://www.padrino.ai/developers.md): The developer facts without the page around them. - [Operations as JSON](https://www.padrino.ai/api-catalog.json): The same list, machine readable: method, path, scope, read or write, summary. ## Languages Padrino works in any language. English, Spanish and Portuguese are built in and are the most used. Any other language can be picked in account settings and Padrino translates the app automatically the first time it is chosen. Padrino's AI team and connected AI assistants read and reply in whatever language the user writes in. ## Core pages - [Home](https://www.padrino.ai/): What Padrino is and who it is for. - [How it works](https://www.padrino.ai/how-it-works): Describe the business, connect your AI once, approve what matters. - [Modules](https://www.padrino.ai/modules): Every native module in one place. - [AI agents](https://www.padrino.ai/ai-agents): Using Muse, ChatGPT, Claude and Grok with Padrino. - [Automations](https://www.padrino.ai/automations): Recurring jobs your AI builds once as a small program; Padrino reviews the code and runs it on schedule without AI tokens. - [What to do about the PHP vulnerability and the eMudhra certificate compromise](https://www.padrino.ai/php-vulnerability-what-to-do): The October 2026 PHP vulnerability (PHP2Shell) and eMudhra certificate compromise, in plain English: what happened and what to do as a user. Five simple steps. - [Blog](https://www.padrino.ai/blog): Posts from Padrino, newest first. ## Modules - [Accounting](https://www.padrino.ai/accounting): Real double-entry books your AI can maintain: bank feeds, receipts, reconciliation and reports, with every AI entry drafted for your approval. - [CRM](https://www.padrino.ai/crm): A CRM your AI can run from the first day: leads, conversations, quotes and follow up in one pipeline, connected to invoicing and projects. - [Orders](https://www.padrino.ai/orders): Quotes, sales orders, deposits, fulfillment, returns and invoicing in one flow your AI can run, connected to inventory and the books. - [Inventory](https://www.padrino.ai/inventory): Real-time stock levels across warehouses, an append-only stock ledger with costs, cycle counts with AI variance flags, kitting, variants and reorder suggestions. - [Warehouse management](https://www.padrino.ai/warehouse-management): A WMS built for small warehouses: bins and zones, receiving with QC hold, putaway suggestions, wave picking along the pick path, scan-to-pick, packing slips and counts. - [Purchasing](https://www.padrino.ai/purchasing): Purchase orders your AI drafts from reorder points and plain sentences, with approvals, vendor price breaks, receiving, vendor returns and supplier feeds. - [Invoicing and payments](https://www.padrino.ai/invoicing): Invoices created from finished work, sent and followed up by your AI, with payments reconciled against the books automatically. - [Projects and workflows](https://www.padrino.ai/projects): Turn won jobs into tasks, owners and deadlines. People and AI agents work the same board, with costs and invoices tied to every project. - [Scheduling](https://www.padrino.ai/scheduling): Services, staff and rooms, availability with holiday overrides, and bookings with conflict detection, connected to customers, invoices and the books. - [Shifts and time clock](https://www.padrino.ai/shifts): Build and publish shifts by department, protect minimum coverage, handle time off, and let staff clock in and out from their phones. - [Route planning](https://www.padrino.ai/route-planning): Plan sales visit routes from your CRM with arrival times and a multi-stop map, then log each visit's outcome straight back to the customer record. - [Documents](https://www.padrino.ai/documents): Contracts, receipts, W-9s, estimates and photos stored with the customer, project or transaction they belong to, organized by AI and protected by permissions. - [Websites](https://www.padrino.ai/websites): An AI website builder that already knows your services, prices and service area, and keeps the site in step with the rest of your business. - [CFO and budgets](https://www.padrino.ai/cfo): An AI CFO that reads your real books: financial summaries across businesses, budgets by account and month, a prioritized action queue and plain-language guidance. - [AI employees](https://www.padrino.ai/ai-employees): Hire AI employees with real roles, context and logins, give them tasks, watch their work live, and pause or refocus them anytime. They work inside your Padrino business. ## Blog - [Padrino and the October 2026 PHP and certificate security incidents](https://www.padrino.ai/blog/php2shell-emudhra-padrino): What the PHP2Shell vulnerability and the eMudhra certificate compromise of October 2026 meant for Padrino, your data and the AI assistants you connect. Published October 22, 2026. ## Guides - [Claude and QuickBooks](https://www.padrino.ai/claude-quickbooks): Can Claude do your QuickBooks? How the QuickBooks connector for Claude works, what it covers, and why some businesses give Claude its own books in Padrino instead. - [ChatGPT and QuickBooks](https://www.padrino.ai/chatgpt-quickbooks): How to use ChatGPT with QuickBooks, what the QuickBooks app in ChatGPT can do, and how ChatGPT can keep complete books in Padrino instead of querying another app. - [AI alternative to QuickBooks](https://www.padrino.ai/quickbooks-alternative-ai): Looking for a QuickBooks alternative with AI built in? Padrino is an accounting system your AI can actually run, with CRM, invoicing, projects and documents in the same place. - [Claude for small business](https://www.padrino.ai/claude-for-small-business): Claude for Small Business connects Claude to QuickBooks, PayPal, HubSpot and more. Here is how it works, and how Padrino gives Claude one business system instead. - [ChatGPT for small business](https://www.padrino.ai/chatgpt-for-small-business): How small businesses use ChatGPT, what ChatGPT Business and its apps can do, and how connecting ChatGPT to Padrino gives it real books, a CRM and projects to work in. - [Grok Bot for business](https://www.padrino.ai/grok-bot-for-business): Grok Bot gives you always-on AI teammates that sign into your tools. Here is how businesses use it, and how Padrino gives your bots one system of record instead of a dozen logins. - [Grok Bot alternatives](https://www.padrino.ai/grok-bot-alternatives): The main Grok Bot alternatives for business in 2026, what each one does well, and why the choice of agent matters less than where your business lives. - [Best AI agent for small business](https://www.padrino.ai/best-ai-agent-for-small-business): How to choose an AI agent for a small business: what to look for, where agents fall short, and how to set one up so it can do real work safely.