Tomba.io MCP Server
Officialby tomba-io
README.md
# [<img src="https://tomba.io/logo.svg" alt="Tomba" width="25"/>](https://tomba.io/) Tomba.io MCP Server
A Model Context Protocol (MCP) server for integrating with the Tomba.io API. This server provides comprehensive email discovery, verification, and enrichment capabilities through a standardized MCP interface.
## Features
### Tools (28 available)
#### Email Discovery
- **[Domain Search](https://tomba.io/domain-search)**: Find all email addresses associated with a domain
- **[Email Finder](https://tomba.io/email-finder)**: Generate likely email addresses from names and domains
- **[Author Finder](https://tomba.io/author-finder)**: Discover email addresses of article authors
- **[LinkedIn Finder](https://tomba.io/linkedin-finder)**: Find emails from LinkedIn profile URLs
- **[Email Count](https://tomba.io/email-count)**: Get total email counts for domains
- **[Email Sources](https://docs.tomba.io/api)**: Find where an email address was found on the web
- **[Email Format](https://docs.tomba.io/api)**: Get the email format patterns used by a domain
#### Verification
- **[Email Verifier](https://tomba.io/email-verifier)**: Verify email deliverability and check database presence
#### Enrichment
- **[Email Enrichment](https://tomba.io/enrichment)**: Enrich emails with additional contact data
- **[Person Enrichment](https://docs.tomba.io/api)**: Find person data by email (name, position, social profiles)
- **[Company Enrichment](https://docs.tomba.io/api)**: Find company data by domain (industry, size, location)
- **[Combined Enrichment](https://docs.tomba.io/api)**: Combined person + company enrichment by email
#### Phone
- **[Phone Finder](https://tomba.io/phone-finder)**: Search phone numbers by email, domain, or LinkedIn
- **[Phone Validator](https://tomba.io/phone-validator)**: Validate phone numbers and check carrier info
#### Domain Intelligence
- **[Domain Status](https://docs.tomba.io/api)**: Check if a domain is webmail or disposable
- **[Autocomplete](https://docs.tomba.io/api)**: Company name suggestions with logo and domain info
- **[Similar Finder](https://tomba.io/similar-domains)**: Find similar domains based on a target domain
- **[Technology Finder](https://tomba.io/technology-finder)**: Discover technology stacks used by websites
- **[Location](https://docs.tomba.io/api)**: Get employees location count by country
#### Company Search
- **[Companies Search](https://app.tomba.io/reveal)**: Search for companies using natural language queries with advanced filters
#### Account & Management
- **Account Info**: Get current account information, plan, and credits
- **Usage Info**: Get API usage statistics across all endpoints
- **List Flags**: List submitted data flags with status and credit refunds
- **Create Flag**: Report incorrect data (hard bounces, invalid emails) for credit recovery
- **List Leads**: List leads with optional domain filter
- **Create Lead**: Add a new lead to a list
- **List Keys**: List API keys
- **Get Logs**: Get recent API request logs
### Resources (7 available)
- `tomba://api/status` - API status and account info
- `tomba://domain/{domain}` - Domain information
- `tomba://email/{email}` - Email information
- `tomba://similar/{domain}` - Similar domains analysis
- `tomba://technology/{domain}` - Technology stack information
- `tomba://docs/api` - API documentation
- `tomba://docs/tools` - Tools documentation
### Prompts (16 pre-built workflows)
- **find_contact** - Find complete contact info for a person
- **verify_email_list** - Batch verify email addresses
- **research_company** - Research company contacts and structure
- **enrich_lead** - Enrich a lead with all available data
- **find_journalists** - Find journalist contacts from articles
- **phone_finder** - Find phone numbers for contacts
- **validate_phone** - Validate a phone number
- **competitor_analysis** - Analyze competitors using similar domains and technology
- **technology_audit** - Comprehensive technology audit of a website
- **domain_insights** - Get comprehensive insights about a domain including email count and technology
- **bulk_domain_research** - Research multiple domains for email counts and basic information
- **find_target_companies** - Find companies with advanced filters (size, type, revenue, industry)
- **market_research** - Research companies in a market segment with comprehensive filtering
- **lead_generation** - Generate leads by finding companies and their contacts
- **prospect_enrichment** - Enrich company prospects with comprehensive data
- **industry_analysis** - Analyze companies within an industry with detailed segmentation
#### Filter Options for Company Search Prompts
| Filter | Available Values |
| ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Size** | 1-10 (Micro), 11-50 (Small), 51-250 (Mid-sized), 251-1K (Medium-large), 1K-5K (Large), 5K-10K (Very large), 10K-50K (Enterprise), 50K-100K (Massive), 100K+ (Global) |
| **Type** | education, government, nonprofit, private, public, personal |
| **Revenue** | $0-$1M, $1M-$10M, $10M-$50M, $50M-$100M, $100M-$250M, $250M-$500M, $500M-$1B, $1B-$10B, $10B+ |
| **Industry** | Based on LinkedIn Industry Codes V2 (140+ industries including Computer Software, Financial Services, Hospital & Health Care, etc.) |
### Performance & Reliability
#### Timeout
All API calls have a **120-second timeout**. Tomba searches run in real time against live infrastructure — response times vary with the target company's SMTP server speed, website responsiveness, and the depth of catch-all detection.
#### Retry with Exponential Backoff
All API calls automatically retry up to **3 times** with exponential backoff on:
- `429 Too Many Requests` (rate limit exceeded)
- `5xx` server errors
Retry delays: 1s → 2s → 4s.
#### Rate Limits
Rate limits are enforced per endpoint and per plan:
| Plan | Per Second | Per Minute | Per Day |
| --- | :---: | :---: | :---: |
| Free | 1 | 2 | 5 |
| Basic | 3 | 50 | 500 |
| Growth | 5 | 80 | 1,000 |
| Pro | 8 | 150 | 4,000 |
| 50,000+ plans | Unlimited | Unlimited | Unlimited |
No credits are charged when Tomba cannot provide a result. Duplicate requests within 30 days are not counted again.
### Transport Options
- **stdio** - Standard input/output (default, for Claude Desktop)
- **http** - HTTP server with REST endpoints
## Installation
### Prerequisites
- Node.js 18 or higher
- npm or yarn
- Tomba API account ([Sign up here](https://tomba.io))
## Screenshots
> **Note:** The npm package has been renamed from `tomba-mcp-server` to `@tomba-io/tomba-mcp-server`. Please update your configurations accordingly.
### Option 1: Install via NPX (Recommended)
The easiest way to use the Tomba MCP server is via npx, which doesn't require cloning the repository:
#### macOS/Linux
Add to your `claude_desktop_config.json` (`~/Library/Application Support/Claude/claude_desktop_config.json`):
```json
{
"mcpServers": {
"tomba": {
"command": "npx",
"args": ["-y", "@tomba-io/tomba-mcp-server"],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
#### Windows
Add to your `claude_desktop_config.json` (`%APPDATA%\Claude\claude_desktop_config.json`):
```json
{
"mcpServers": {
"tomba": {
"command": "npx",
"args": ["-y", "@tomba-io/tomba-mcp-server"],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
**Note:** The `-y` flag automatically accepts the installation prompt, and npx will always fetch the latest version.
### Option 2: Install from Source
If you want to modify the server or contribute to development:
```bash
# Clone the repository
git clone https://github.com/tomba-io/tomba-mcp-server.git
cd tomba-mcp-server
# Install dependencies
yarn install
# Build the project
yarn build
```
## Configuration
### OpenClaw Skill
This repository now includes a workspace-local OpenClaw skill at `skills/tomba-contact-intelligence/SKILL.md`.
The skill is designed to help OpenClaw choose the right Tomba MCP tools for contact discovery, company research, email verification, phone lookup, and prospect enrichment workflows.
To use it:
1. Open this repository as your OpenClaw workspace, or copy the `skills/tomba-contact-intelligence` directory into your OpenClaw skills directory.
2. Ensure the Tomba MCP server is configured and available to OpenClaw.
3. Start a new OpenClaw session so the skill is loaded.
Example prompts:
- "Find the best contact for partnerships at stripe.com and verify the email before you return it."
- "Research fintech companies in Germany, then identify likely sales contacts for the top matches."
- "Enrich this prospect with email, phone, company technology, and similar competitors: jane@acme.com"
### Claude Desktop Setup
To use this server with Claude Desktop, add the configuration to your `claude_desktop_config.json` file.
#### Using NPX (Recommended)
This method automatically uses the latest published version:
**macOS/Linux** (`~/Library/Application Support/Claude/claude_desktop_config.json`):
```json
{
"mcpServers": {
"tomba": {
"command": "npx",
"args": ["-y", "@tomba-io/tomba-mcp-server"],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
**Windows** (`%APPDATA%\Claude\claude_desktop_config.json`):
```json
{
"mcpServers": {
"tomba": {
"command": "npx",
"args": ["-y", "@tomba-io/tomba-mcp-server"],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
#### Using Local Installation
If you've built from source, use the absolute path to your installation:
**macOS/Linux:**
```json
{
"mcpServers": {
"tomba": {
"command": "node",
"args": ["/ABSOLUTE/PATH/TO/tomba-mcp-server/server/index.js"],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
**Windows:**
```json
{
"mcpServers": {
"tomba": {
"command": "node",
"args": [
"C:\\ABSOLUTE\\PATH\\TO\\tomba-mcp-server\\server\\index.js"
],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
**Important Notes:**
- Replace `your-api-key-here` and `your-secret-key-here` with your actual Tomba API credentials
- For local installation, replace `/ABSOLUTE/PATH/TO/tomba-mcp-server` with the full path to your installation directory
- Restart Claude Desktop after updating the configuration
### Getting Tomba API Credentials
1. Visit [https://tomba.io](https://tomba.io)
2. Sign up for an account or log in
3. Navigate to your dashboard
4. Go to API settings
5. Copy your API Key and Secret Key
### Alternative: Using HTTP Transport
For HTTP transport with npx:
```json
{
"mcpServers": {
"tomba": {
"command": "npx",
"args": [
"-y",
"@tomba-io/tomba-mcp-server",
"--transport",
"http",
"--port",
"3000"
],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
For HTTP transport with local installation:
```json
{
"mcpServers": {
"tomba": {
"command": "node",
"args": [
"/ABSOLUTE/PATH/TO/tomba-mcp-server/server/index.js",
"--transport",
"http",
"--port",
"3000"
],
"env": {
"TOMBA_API_KEY": "your-api-key-here",
"TOMBA_SECRET_KEY": "your-secret-key-here"
}
}
}
}
```
## Usage
### Command-line Options
```bash
Usage: tomba-mcp-server [options]
Options:
--transport <type> Transport type: 'stdio' or 'http' (default: stdio)
--port <number> Port number for HTTP transport (default: 3000)
--help Show help message
Environment Variables:
TOMBA_API_KEY Your Tomba API key (required)
TOMBA_SECRET_KEY Your Tomba secret key (required)
Examples:
# Run with stdio transport (default)
node server/index.js
# Run with HTTP transport on default port (3000)
node server/index.js --transport http
# Run with HTTP transport on custom port
node server/index.js --transport http --port 8080
```
### Standalone HTTP Server
You can also run the server as a standalone HTTP service:
```bash
export TOMBA_API_KEY="your-api-key"
export TOMBA_SECRET_KEY="your-secret-key"
node server/index.js --transport http --port 3000
```
#### HTTP API Endpoints
- **POST /mcp** - Send JSON-RPC requests
- **GET /mcp** - Server-Sent Events for notifications (requires X-Session-Id header)
- **DELETE /mcp** - Terminate a session (requires X-Session-Id header)
- **GET /health** - Health check endpoint
- **GET /sessions** - List active sessions (requires authentication)
#### Example HTTP Request
```bash
curl -X POST http://localhost:3000/mcp \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "tools/call",
"params": {
"name": "email_finder",
"arguments": {
"domain": "stripe.com",
"firstName": "Patrick",
"lastName": "Collison"
}
},
"id": 1
}'
```
## 🔧 Development
### Development Commands
```bash
# Run in development mode
yarn dev
# Build the project
yarn build
# Run tests
yarn test
# Run tests in watch mode
yarn test:watch
# Run tests with coverage
yarn test:coverage
# Lint code
yarn lint
# Fix linting errors
yarn lint:fix
```
## 🔍 Debugging & Testing
### MCP Inspector (Recommended)
The easiest way to test and debug your MCP server:
```bash
# Build and launch MCP Inspector
yarn debug
```
This opens a web interface where you can:
- 📋 View all available tools
- 🧪 Test tools interactively
- 📊 Inspect requests/responses
- 🐛 Debug in real-time
### Alternative Debug Methods
```bash
# Debug TypeScript directly
yarn debug:dev
# Run integration tests
yarn test:integration
# Manual testing
yarn build
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | node server/index.js
```
### VS Code Debugging
If using VS Code, use the included debug configurations:
- **Debug MCP Server**: Debug the compiled JavaScript
- **Debug TypeScript**: Debug TypeScript source directly
- **Debug with Inspector**: Debug with MCP Inspector
- **Run Tests**: Debug Jest tests
See `DEBUG_GUIDE.md` for comprehensive debugging instructions.
## 🧪 Testing Individual Tools
### 1. Domain Search
Search for email addresses associated with a domain name.
```json
{
"name": "domain_search",
"arguments": {
"domain": "tomba.io",
"limit": 10,
"page": 1
}
}
```
**Response:**
```json
{
"data": {
"organization": {
"website_url": "tomba.io",
"organization": "Tomba technology web service LLC",
"location": {
"country": "US",
"city": "Claymont",
"state": "Delaware",
"street_address": "1228 claymont",
"postal_code": "19703"
},
"social_links": {
"twitter_url": "https://twitter.com/tombaplatforum",
"facebook_url": "https://www.facebook.com/tombaplatforum",
"linkedin_url": "https://www.linkedin.com/company/tomba-io"
},
"disposable": false,
"webmail": false,
"phone_number": "(850) 790-5575",
"industries": "Information Technology and Services",
"founded": "2021",
"company_size": "1-10",
"company_type": "privately held",
"revenue": "$0-$1M",
"accept_all": false,
"description": "the most powerful email-finding tool which is able to list all the email addresses of people who are working in a particular company.",
"pattern": "{l}.{first}",
"total_similar": 35,
"keywords": [
"lead generation software"
],
"ranking": 661495,
"whois": {
"registrar_name": "namecheap, inc.",
"created_date": "2020-07-07T20:54:07+02:00",
"referral_url": "https://www.namecheap.com/"
},
"last_updated": "2025-09-06T00:22:01+02:00"
},
"emails": [
{
"email": "b.mohamed@tomba.io",
"first_name": "Mohamed",
"last_name": "Ben rebia",
"full_name": "Mohamed Ben rebia",
"gender": "male",
"phone_number": false,
"type": "personal",
"country": "DZ",
"position": "CEO",
"department": "executive",
"seniority": "senior",
"twitter": null,
"linkedin": "https://www.linkedin.com/in/mohamed-ben-rebia",
"score": 100,
"verification": {
"date": "2025-09-22T00:00:00+02:00",
"status": "valid"
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
},
....
]
},
...
...
...
...
...
]
},
"meta": {
"total": 21,
"pageSize": 10,
"current": 1,
"total_pages": 3,
"params": {
"domain": "tomba.io",
"page": 1,
"limit": 10,
"department": null,
"country": null,
"type": "all",
"live": false
}
}
}
```
### 2. Email Finder
Generate likely email addresses from domain, first name, and last name.
```json
{
"name": "email_finder",
"arguments": {
"domain": "example.com",
"firstName": "John",
"lastName": "Doe"
}
}
```
**Response:**
```json
{
"data": {
"email": "b.mohamed@tomba.io",
"first_name": "Mohamed",
"last_name": "Ben rebia",
"full_name": "Mohamed Ben rebia",
"website_url": "tomba.io",
"company": "Tomba technology web service LLC",
"position": "CEO",
"country": "DZ",
"gender": "male",
"twitter": null,
"linkedin": "https://www.linkedin.com/in/mohamed-ben-rebia",
"score": 100,
"accept_all": null,
"phone_number": false,
"verification": {
"date": "2025-09-22T00:00:00+02:00",
"status": "valid"
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
}
]
}
}
```
### 3. Email Verifier
Verify email address deliverability and check database presence.
```json
{
"name": "email_verifier",
"arguments": {
"email": "b.mohamed@tomba.io"
}
}
```
**Response:**
```json
{
"data": {
"email": {
"email": "b.mohamed@tomba.io",
"result": "deliverable",
"status": "valid",
"score": 99,
"smtp_provider": "Google Workspace",
"mx": {
"records": [
"aspmx.l.google.com",
"alt2.aspmx.l.google.com",
"alt1.aspmx.l.google.com",
"alt4.aspmx.l.google.com",
"alt3.aspmx.l.google.com"
]
},
"mx_check": true,
"smtp_server": true,
"smtp_check": true,
"accept_all": false,
"greylisted": false,
"block": true,
"gibberish": false,
"disposable": false,
"webmail": false,
"regex": true,
"whois": {
"registrar_name": "namecheap, inc.",
"referral_url": "https://www.namecheap.com/",
"created_date": "2020-07-07T20:54:07+02:00"
}
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
}
]
}
}
```
### 4. Email Enrichment
Enrich an email address with additional contact information.
```json
{
"name": "email_enrichment",
"arguments": {
"email": "b.mohamed@tomba.io"
}
}
```
**Response:**
```json
{
"data": {
"email": "b.mohamed@tomba.io",
"first_name": "Mohamed",
"last_name": "Ben rebia",
"full_name": "Mohamed Ben rebia",
"website_url": "tomba.io",
"company": "Tomba technology web service LLC",
"position": "CEO",
"country": "DZ",
"gender": "male",
"twitter": null,
"linkedin": "https://www.linkedin.com/in/mohamed-ben-rebia",
"score": 100,
"accept_all": null,
"phone_number": false,
"verification": {
"date": "2025-09-22T00:00:00+02:00",
"status": "valid"
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
}
]
}
}
```
### 5. Author Finder
Find email addresses of article authors from a URL.
```json
{
"name": "author_finder",
"arguments": {
"url": "https://example.com/article"
}
}
```
**Response:**
```json
{
"data": {
"email": "b.mohamed@tomba.io",
"first_name": "Mohamed",
"last_name": "Ben rebia",
"full_name": "Mohamed Ben rebia",
"website_url": "tomba.io",
"company": "Tomba technology web service LLC",
"position": "CEO",
"country": "DZ",
"gender": "male",
"twitter": null,
"linkedin": "https://www.linkedin.com/in/mohamed-ben-rebia",
"score": 100,
"accept_all": null,
"phone_number": false,
"verification": {
"date": "2025-09-22T00:00:00+02:00",
"status": "valid"
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
}
]
}
}
```
### 6. LinkedIn Finder
Find email addresses from LinkedIn profile URLs.
```json
{
"name": "linkedin_finder",
"arguments": {
"url": "https://linkedin.com/in/johndoe"
}
}
```
**Response:**
```json
{
"data": {
"email": "b.mohamed@tomba.io",
"first_name": "Mohamed",
"last_name": "Ben rebia",
"full_name": "Mohamed Ben rebia",
"website_url": "tomba.io",
"company": "Tomba technology web service LLC",
"position": "CEO",
"country": "DZ",
"gender": "male",
"twitter": null,
"linkedin": "https://www.linkedin.com/in/mohamed-ben-rebia",
"score": 100,
"accept_all": null,
"phone_number": false,
"verification": {
"date": "2025-09-22T00:00:00+02:00",
"status": "valid"
},
"sources": [
{
"uri": "https://github.com/tomba-io/generic-emails/blob/084fc1a63d3cdaf9a34f255bedc2baea49a8e8b9/src/lib/validation/hash.ts",
"website_url": "github.com",
"extracted_on": "2021-02-08T20:09:54+01:00",
"last_seen_on": "2021-02-08T22:43:40+01:00",
"still_on_page": true
}
]
}
}
```
### 7. Phone Finder
Search for phone numbers based on email, domain, or LinkedIn profile.
```json
{
"name": "phone_finder",
"arguments": {
"domain": "tomba.io"
}
}
```
**Response:**
```json
{
"data": {
"domain": "tomba.io",
"valid": true,
"local_format": "(850) 790-5575",
"intl_format": "+1 850-790-5575",
"e164_format": "+18507905575",
"rfc3966_format": "tel:+1-850-790-5575",
"country_code": "US",
"line_type": "FIXED_LINE_OR_MOBILE",
"carrier": "",
"timezones": ["America/New_York"]
}
}
```
### 8. Phone Validator
Validate phone numbers and check carrier information.
```json
{
"name": "phone_validator",
"arguments": {
"phone": "+213667945402"
}
}
```
**Response:**
```json
{
"data": {
"valid": true,
"local_format": "0667 94 54 02",
"intl_format": "+213 667 94 54 02",
"e164_format": "+213667945402",
"rfc3966_format": "tel:+213-667-94-54-02",
"country_code": "DZ",
"line_type": "MOBILE",
"carrier": "Mobilis",
"timezones": ["Europe/Paris"]
}
}
```
### 9. Email Count
Get the total number of email addresses for a domain.
```json
{
"name": "email_count",
"arguments": {
"domain": "tomba.io"
}
}
```
**Response:**
```json
{
"domain": "tomba.io",
"total": 245,
"personalEmails": 198,
"genericEmails": 47,
"department": {
"engineering": 45,
"sales": 38,
"marketing": 32,
"hr": 15,
"finance": 12,
"legal": 8,
"executive": 25,
"support": 28,
"other": 42
},
"seniority": {
"junior": 89,
"senior": 125,
"executive": 31
},
"source": "tomba_email_count"
}
```
### 10. Similar Finder
Find similar domains based on a specific domain.
```json
{
"name": "similar_finder",
"arguments": {
"domain": "tomba.io"
}
}
```
**Response:**
```json
{
"data": [
{
"website_url": "summit.com",
"name": "Summit",
"industries": "Wholesale"
},
{
"website_url": "hunter.io",
"name": "Hunter",
"industries": "Information Technology and Services"
},
{
"website_url": "voilaNorbert.com",
"name": "VoilaNorbert",
"industries": "Information Technology and Services"
}
]
}
```
### 11. Technology Finder
Instantly reveal the technology stack of any website.
```json
{
"name": "technology_finder",
"arguments": {
"domain": "tomba.io"
}
}
```
**Response:**
```json
{
"domain": "tomba.io",
"data": [
{
"slug": "intercom",
"name": "Intercom",
"icon": "Intercom.png",
"website": "https://www.intercom.com",
"categories": {
"id": 10,
"slug": "analytics",
"name": "Analytics"
}
}
]
}
```
### 12. Companies Search
Search for companies using natural language queries with advanced filters including location, industry, size, and revenue.
```json
{
"name": "companies_search",
"arguments": {
"filters": {
"location_city": {
"include": ["san francisco"]
},
"industry": {
"include": ["technology"]
},
"size": {
"include": ["51-200", "201-500"]
}
},
"page": 1,
"limit": 10
}
}
```
**Response:**
```json
{
"data": {
"companies": [
{
"name": "Tech Company Inc",
"domain": "techcompany.com",
"industry": "Technology",
"location": {
"city": "San Francisco",
"state": "California",
"country": "United States"
},
"size": "51-200",
"revenue": "$10M-$50M"
}
],
"total": 150,
"page": 1
}
}
```
**Available Filters:**
- `location_city`: Filter by city with include/exclude arrays
- `location_state`: Filter by state with include/exclude arrays
- `location_country`: Filter by country with include/exclude arrays
- `industry`: Filter by industry (based on LinkedIn Industry Codes V2 - 140+ industries)
- `type`: Filter by company type: `education`, `government`, `nonprofit`, `private`, `public`, `personal`
- `size`: Filter by company size: `1-10`, `11-50`, `51-250`, `251-1K`, `1K-5K`, `5K-10K`, `10K-50K`, `50K-100K`, `100K+`
- `revenue`: Filter by revenue range: `$0-$1M`, `$1M-$10M`, `$10M-$50M`, `$50M-$100M`, `$100M-$250M`, `$250M-$500M`, `$500M-$1B`, `$1B-$10B`, `$10B+`
- `founded`: Filter by founding year with include/exclude arrays
- `keywords`: Filter by keywords with include/exclude arrays
- `sic`: Filter by SIC codes with include/exclude arrays
- `naics`: Filter by NAICS codes with include/exclude arrays
- `similar`: Filter by similar domains with include/exclude arrays
## Rate Limiting & Usage
### API Rate Limits
Tomba.io implements rate limiting based on your subscription plan:
- **Free Plan**: 50 requests per month
- **Growth Plan**: 5,000 requests per month + 10,000 verifications requests
- **Pro Plan**: 10,000 requests per month
- **Enterprise Plan**: 50,000 requests per month
- **Custom Plan**: Custom limits
Learn more about [Tomba Pricing Plans](https://tomba.io/pricing).
### Rate Limit Headers
Each API response includes rate limit information:
```
X-RateLimit-Limit: 1000
X-RateLimit-Remaining: 999
X-RateLimit-Reset: 1609459200
```
Learn more about [Tomba API Rate Limits](https://docs.tomba.io/rate-limits).
### Handling Rate Limits
When you exceed your rate limit, the API returns a `429 Too Many Requests` status with:
```json
{
"error": {
"type": "rate_limit",
"message": "Rate limit exceeded. Please try again in 60 seconds",
"code": 429
}
}
```
### Best Practices
1. **Monitor Usage**: Check your dashboard at [tomba.io/dashboard](https://app.tomba.io/dashboard)
2. **Implement Backoff**: Handle 429 responses with exponential backoff
3. **Batch Operations**: Use domain search for multiple emails from the same domain
4. **Cache Results**: Store results locally to avoid duplicate requests
5. **Plan Accordingly**: Upgrade your plan based on usage patterns
### Usage Tips
- Domain search returns multiple emails per request (more efficient than individual lookups)
- Email verification consumes credits only for valid email formats
- Phone finder may return multiple numbers per request
- Enrichment provides comprehensive data in a single request
## Troubleshooting
### Server Not Starting in Claude Desktop
1. **Check Node.js version**: Ensure you have Node.js 18 or higher
```bash
node --version
```
2. **Using NPX:**
- Ensure you have a stable internet connection for the first run
- The `-y` flag should auto-accept the installation
- NPX will cache the package after first use
3. **Using Local Installation:**
- Verify absolute path is correct in your config
- Ensure `server/index.js` exists: `ls -la server/index.js`
- Make sure you ran `yarn build` successfully
4. **Verify API credentials**: Ensure your Tomba API keys are correct
5. **Check Claude logs**:
- macOS: `~/Library/Logs/Claude/mcp*.log`
- Windows: `%APPDATA%\Claude\logs\mcp*.log`
### NPX-Specific Issues
**"npx command not found":**
- Ensure npm is installed: `npm --version`
- NPX comes with npm 5.2.0+, update if needed: `npm install -g npm`
**Package not found:**
- Verify the package is published: `npm view @tomba-io/tomba-mcp-server`
- Try clearing npm cache: `npm cache clean --force`
**Always downloading package:**
- This is normal behavior with `-y` flag
- NPX caches the package after first download
- For a permanent installation, use local installation method
### Authentication Errors
- Verify your API keys at [https://app.tomba.io/dashboard](https://app.tomba.io/dashboard)
- Ensure environment variables are properly set in the config
- Check that your API subscription is active
### Tools Not Responding
- Check your Tomba API rate limits
- Verify network connectivity
- Review server logs for error messages
## About Tomba
Founded in 2020, Tomba prides itself on being the most reliable, accurate, and in-depth source of email address data available anywhere. We process terabytes of data to produce our Email finder API.
[](https://tomba.io/)
## Contributing
1. Fork it (<https://github.com/tomba-io/tomba-mcp-server/fork>)
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create a new Pull Request
## License
Please see the [License](LICENSE) file for more information.
## Support
- [GitHub Issues](https://github.com/tomba-io/tomba-mcp-server/issues)
- [Email Support](mailto:support@tomba.io)
- [Website](https://tomba.io)
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