crmapi_key

Tomba

Tomba is an Email Finder for B2B sales and email marketing.

Verdict

Tomba finds and verifies business email addresses at scale. When you @mention Tomba in a Space, your team can create leads, check domain reputation, audit API usage, and manage lead lists without leaving the conversation. Sales and ops teams use it to validate prospect emails before outreach, enrich contact records mid-workflow, or confirm a domain isn't disposable before sending. You'll need a Tomba API key with sufficient credits — usage counts against your account quota, so monitor stats regularly to avoid hitting limits mid-campaign.

Common use cases

  • Validate prospect emails before cold outreach
  • Enrich CRM contacts with verified addresses
  • Check domain reputation during lead import
  • Monitor API usage to avoid quota overruns
  • Audit and clean lead lists before campaigns

Integration

Vendor
Tomba
Category
crm
Auth
API_KEY
Tools
10
Composio slug
tomba

Tools

  • Create Lead

    Tool to add a new lead. use when you have lead details and need to save them to tomba.

  • Delete API Key by ID
    destructive

    Tool to delete an api key by id. use when you need to permanently revoke an api key before its expiration.

  • Delete Leads List by ID
    destructive

    Tool to delete a leads list by id. use when you need to permanently remove a list after confirming its id.

  • Domain Status

    Tool to check if a domain is webmail or disposable. use when validating email deliverability constraints.

  • Get Usage Statistics

    Tool to get api usage statistics. use when you need to monitor account usage and avoid hitting limits.

  • List API Keys

    Tool to list all api keys. use when you want to retrieve information about your existing tomba api keys.

  • List lead attributes

    Tool to list all lead attributes. use when you need to discover available attributes before enrichment.

  • List Lead Lists

    Tool to list all lead lists. use when you need to retrieve and paginate your lead lists.

  • List Leads

    Tool to list all leads. use when you need to retrieve and paginate your leads list.

  • Update Leads List

    Tool to update a leads list's name by id. use when renaming an existing list after obtaining its id.

Setup

Setup guide

  1. 11. In Switchy, open your workspace settings and navigate to the Integrations tab. 2. Click 'Add Integration', search for Tomba, and select it from the list. 3. Go to your Tomba dashboard at app.tomba.io, navigate to API Keys under your account settings, and generate a new key with the scopes you need (lead creation, domain verification, list management). 4. Copy the API key and paste it into the Switchy connection dialog, then click 'Connect'. 5. Switchy will test the connection by fetching your usage statistics — if successful, you'll see a confirmation message. 6. Open any Space, type '@Tomba get usage statistics' in the chat, and send. 7. Tomba should respond with your current API usage and remaining credits, confirming the integration is live and ready for lead enrichment, domain checks, and list operations.

What teammates see: by default, memories from Tomba are scoped to the Space (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.

Works well with

Top models

Compatibility data appears once enough Spaces have used this MCP together with a given model.

How Switchy teams use it

Not enough Spaces yet to publish anonymised usage stats (we require ≥ 50 Spaces per week).

Starter prompts

Verify Domain Status

@Tomba check the domain status for example.com and tell me if it's safe to use for business email outreach.
Open in a Space →

Create New Lead

@Tomba create a new lead with the email john.doe@acmecorp.com, first name John, last name Doe, and company Acme Corp.
Open in a Space →

Check API Usage

@Tomba get my current API usage statistics and let me know how many requests I have remaining this month.
Open in a Space →

List All Lead Lists

@Tomba list all my lead lists and show me the name and ID of each so I can pick one to review.
Open in a Space →

Discover Lead Attributes

@Tomba list all available lead attributes so I know which fields I can populate when creating or updating contacts.
Open in a Space →

Example outputs

Illustrative - representative of the model's voice and quality, not literal recordings.

Prompt

@tomba check if the domain 'freemail-service.com' is a webmail or disposable provider before I add these leads to our CRM

Output

Domain Status Check for freemail-service.com: • Type: Disposable • Webmail: No • Accept-all: Yes • Risk Score: High This domain is flagged as a disposable email provider. Emails from this domain are typically temporary and may not be suitable for long-term lead nurturing campaigns. Consider filtering out disposable domains during lead import to maintain list quality and improve deliverability metrics.

Notes

This example demonstrates Tomba's domain validation capability, which helps teams maintain CRM hygiene by identifying temporary or low-quality email domains before import. Requires API key authentication. Note that domain classification databases update periodically, so results reflect current provider status but may change if a domain's usage pattern shifts.

Prompt

@tomba create a new lead with email 'sarah.chen@techstartup.io', first name Sarah, last name Chen, company TechStartup, and tag this as 'conference-2024'

Output

Lead Created Successfully: • Email: sarah.chen@techstartup.io • Name: Sarah Chen • Company: TechStartup • Tags: conference-2024 • Lead ID: ld_8x9k2m4p • Created: 2024-01-15 14:23:17 UTC This lead has been added to your default leads list. You can enrich this record with additional attributes or move it to a specific list using the lead ID provided.

Notes

This write operation shows how Tomba stores structured lead data directly from conversation context. The MCP creates the lead immediately—there's no preview or confirmation step. Make sure your team understands that @tomba create commands execute instantly and will consume API quota. You'll need appropriate API key permissions for lead creation.

Prompt

@tomba pull our API usage statistics for this month and tell me if we're at risk of hitting our email verification limit before the billing cycle resets

Output

Tomba API Usage Summary (January 2024): • Email Verifications: 8,420 / 10,000 (84% used) • Domain Searches: 1,203 / 5,000 (24% used) • Lead Enrichments: 456 / 2,000 (23% used) • Days Remaining in Cycle: 9 Analysis: At your current verification rate (~935/day), you're projected to exceed your 10,000 verification limit by approximately 1,000 requests before the February 1st reset. Consider prioritizing high-value verifications or upgrading your plan to avoid service interruption during the final week of this billing period.

Notes

This synthesis example pairs Tomba's usage data with the AI's calculation abilities to provide proactive quota management. The MCP returns raw statistics; the AI interprets burn rate and projects overages. Useful for teams running high-volume email validation workflows who need to stay within plan limits without manual spreadsheet tracking.

Use-case deep-dives

Cold outreach list validation

When Tomba saves your sender reputation before launch

A 3-person growth team at a B2B SaaS startup is building a cold email campaign to 800 prospects scraped from LinkedIn. Before loading the list into their outbound tool, they run every domain through Tomba's Domain Status check to flag webmail and disposable addresses. The MCP catches 140 Gmail addresses and 22 temp-mail domains that would have tanked their deliverability score. The team deletes those rows, enriches the rest with lead attributes, and ships a clean list in under an hour. This scenario wins when you're working with externally sourced contact lists and need a pre-flight validation step. If your CRM already has native email verification (like Apollo or ZoomInfo), Tomba becomes redundant.

Freelance consultant lead intake

Tomba as a lightweight CRM for solo operators

A freelance marketing consultant uses Tomba to manage 40-60 inbound leads per month without paying for HubSpot or Salesforce. When a prospect fills out her contact form, she uses the Create Lead tool to log the inquiry with custom attributes (budget tier, service interest, referral source). She reviews her lead lists weekly to prioritize follow-ups and checks usage statistics to stay under her API plan. This works because her volume is low and her workflow is simple—no multi-stage pipelines, no team handoffs. If she scales past 100 leads per month or needs automation triggers, she'll outgrow Tomba and need a real CRM. For now, it's a $50/month alternative to a $500/month seat.

Agency client data cleanup audit

When Tomba fixes inherited contact databases

A 6-person digital agency inherits a client's 12,000-contact Mailchimp list that hasn't been cleaned in three years. The account manager uses Tomba to batch-check domain status on the entire list, flagging 1,800 disposable or role-based addresses that are killing open rates. She exports the flagged rows, archives them in the client's CRM, and documents the cleanup in a deliverability audit report. The client's next campaign sees a 9-point bounce-rate drop. This scenario works when you're doing one-time forensic work on a stale database and need a fast, API-driven validation layer. If the client needs ongoing real-time verification at the point of capture, they should integrate a tool like ZeroBounce directly into their forms instead.

Frequently asked

What does the Tomba MCP do in Switchy?

It lets your team validate email addresses, check domain reputation, and manage leads directly from Switchy's AI workspace. You can verify if an email is deliverable, flag webmail or disposable domains, and create or organise lead lists without switching to Tomba's dashboard. Useful when you're prospecting or cleaning contact data mid-conversation.

Do I need a paid Tomba account to use this MCP?

Yes. You need an active Tomba account with an API key. The MCP uses your Tomba API quota, so if you're on a free tier with limited verifications per month, those limits apply. Generate the key in Tomba's settings, paste it into Switchy's connection flow, and you're set.

Can the Tomba MCP find email addresses for me?

No. This MCP validates and enriches existing email data — it checks deliverability, flags disposable domains, and manages leads you already have. If you need to discover new email addresses from names or domains, you'll still use Tomba's web app or a different tool. This integration is for verification and list hygiene.

How is this different from just logging into Tomba?

You skip the context switch. Instead of copying an email, opening Tomba, pasting it, waiting for results, and copying them back, you ask Switchy to verify it inline. The MCP also surfaces usage stats so you know when you're close to your API limit, which Tomba's UI buries in account settings.

Who on my team should connect the Tomba MCP?

Whoever owns your Tomba account and can generate API keys. Since the MCP uses your shared quota, one connection covers the whole Switchy workspace. Sales ops or the person managing your CRM hygiene workflows is the typical owner. Everyone else just uses the tools without needing their own Tomba login.

Data last verified 607 hours ago.Sources aggregated hourly to weekly. See docs/architecture/model-directory.md.