Tomba MCP: find and verify B2B emails from your AI app

Connect Tomba to your AI app

1. 1Click Connect Tomba free and sign in with your Tomba account.
2. 2Finding, verifying and listing leads are everyday work. Deleting a lead list or revoking an API key isn't, so switch those two off.
3. 3Add ContextGate to your AI app as a connector or MCP server. The steps for each app are on the Works with page.
4. 4Ask your AI app whether a prospect's domain is webmail or disposable, then save them as a Tomba lead and look at both calls in Activity.

From domain to verified lead

• Find and verify a B2B email address, then enrich the contact.
• Check whether a domain is webmail or disposable before you send.
• Create leads and organize them into lead lists.
• Watch your API usage so you don't hit a limit.

Guard leads and keys

• Switch off the tools that delete API keys and lead lists, so an AI app can't revoke a key or remove a list.
• Policies can hide personal data, such as prospects' phone numbers, from your AI app.
• Activity records which contacts were looked up and which leads were saved.

What you get with Tomba and ContextGate

• Your AI apps can use TombaClaude, Cursor, ChatGPT and other AI apps reach Tomba through the one ContextGate connection you add to them.
• You choose which tools they can useSwitch off any Tomba tool you don't want used. It's hidden from your AI apps and refused if called.
• Every call is checked and recordedYour policies check each call (for example, personal data is hidden and secrets are blocked), and Activity keeps a record of it.

ContextGate sees only the tool calls that go through it, not your AI app's built-in tools or your chats.

Tomba tools

Examples of what your AI apps can do in Tomba. You'll see the exact list of tools after you connect it.

• Delete API Key by IDTool to delete an api key by id. use when you need to permanently revoke an api key before its expiration.
• List API KeysTool to list all api keys. use when you want to retrieve information about your existing tomba api keys.
• Create LeadTool to add a new lead. use when you have lead details and need to save them to tomba.
• List LeadsTool to list all leads. use when you need to retrieve and paginate your leads list.
• Delete Leads List by IDTool to delete a leads list by id. use when you need to permanently remove a list after confirming its id.
• List Lead ListsTool to list all lead lists. use when you need to retrieve and paginate your lead lists.
• Update Leads ListTool to update a leads list's name by id. use when renaming an existing list after obtaining its id.
• List lead attributesTool to list all lead attributes. use when you need to discover available attributes before enrichment.
• Domain StatusTool to check if a domain is webmail or disposable. use when validating email deliverability constraints.
• Get Usage StatisticsTool to get api usage statistics. use when you need to monitor account usage and avoid hitting limits.