# Your own systems and Volty > We connect Volty to any system with an API or an MCP server, with a switch for every operation. If your system has an API, Volty can work with it. We build the connection from a key or an MCP server, and every operation becomes a tool with its own switch. Talk to Volty · Free trial Updated 2 Nov 2026 ## An in-house system, answered on WhatsApp A membership system we connected by its API. PN Priya Nair WhatsApp · Customer When does my membership renew? Called your membership API · Priya Nair · Gold · renews 1 Dec Volty Hi Priya, your Gold membership renews on 1 December. Would you like the renewal link? Custom connection Membership API 3 tools Find member Read · On Renewal date Read · On Extend membership Change · Check with staff Approved by Workspace admin Built by our team from your API ## What Volty does with Custom API Many businesses run on a system nobody else uses: an in-house booking tool, an ERP from a regional vendor, a database behind the website. We build the connection in your workspace from an address and a key, or connects an MCP server you already run. Each operation becomes a tool with its own switch, exactly like the products in the catalogue. - Any API · REST endpoints with a key, or an MCP server by its address. - Your own database · Read only SQL Server queries on the tables you pick. - One switch per tool · Off, On, or Check with staff, for every operation. - Bound to the customer · A lookup in a customer conversation is for that verified customer only. Connects with An API key, or an MCP server address Volty reads Whatever operations you choose Volty can change Whatever operations you choose, Off by default Setup Built by our team Category Developer & analytics Your own systems, reached the same way as every other source. ## As an automation An automation that starts from your own system. Describe it to Volty in a sentence; it drafts the automation and an admin turns it on. A record changes in your system - When · Your system calls Volty · A webhook when a record changes - Step 1 · Volty finds the contact · And checks they opted in - Step 2 · Sends the approved template · With the update - Step 3 · Answers the replies · Using the same connection We build the connection with you. ## How Volty connects to Custom API Tell us what the system is and share its API documentation and a key. We build the connection, an admin approves it, and you set the switches. - 01 · Share the API · Documentation and a key, or the MCP server address. - 02 · We build the tools · One per operation you want Volty to use. - 03 · Approve and set switches · An admin approves the connection once. ### The tools Volty gets Each one is a switch on the Sources page in Volty. - Your read operations · Reads - Your write operations · Changes Reading tools can be turned on straight away. Anything that changes Custom API starts Off, and once on it can be set to check with staff, so each change waits for a colleague. ## Common questions ### What do you need to connect our system? The API documentation and a key, or the address of an MCP server you already run. ### Can Volty change records in your system? Only when an admin allows it. Every tool has its own switch: tools that only read can be turned on, and tools that change a record start Off. A tool that is on can be set to check with staff, so each change waits for a colleague to approve it. ### How much does it cost to connect your own system with Volty? Every Volty plan includes seats, active contacts and AI credits and starts with a free 7-day trial, and the plan prices are on voltade.com/pricing. Meta bills message charges separately for WhatsApp, Instagram and Messenger. ## Related integrations - MCP server Developer & analytics - SQL Server Spreadsheets & databases - Odoo Industry & regional systems - Your website Docs & knowledge - Google Sheets Spreadsheets & databases All integrations ## Start your free trial Talk to Volty · Start your free trial Sign up for our 7-day trial. No credit card needed. ## Not convinced? Hear more from our CEO and Volty The Leonard and Volty Show · 8 October 2026 ### Meta now charges for WhatsApp replies The Leonard and Volty Show · 1 October 2026 ### Too busy to hire? The Leonard and Volty Show · 21 September 2026 ### From $500 chatbot jobs to agentic AI The Leonard and Volty Show · 10 September 2026 ### Your AI is a new employee The Leonard and Volty Show · 4 September 2026 ### Trust in the AI world The Leonard and Volty Show · 29 August 2026 ### Does the AI model matter? The Leonard and Volty Show · 19 August 2026 ### What are AI agents? Meta now charges for WhatsApp replies. Here's what it means for your business, 8 October 2026 ## Links - [Developer & analytics](https://voltade.com/integrations?category=developer) - [MCP serverDeveloper & analytics](https://voltade.com/integrations/mcp-server) - [SQL ServerSpreadsheets & databases](https://voltade.com/integrations/sql-server) - [OdooIndustry & regional systems](https://voltade.com/integrations/odoo) - [Your websiteDocs & knowledge](https://voltade.com/integrations/your-website) - [Google SheetsSpreadsheets & databases](https://voltade.com/integrations/google-sheets) - [All integrations](https://voltade.com/integrations)