> ## Documentation Index
> Fetch the complete documentation index at: https://docs.enrichley.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Overview of Enrichley: email validation, lead discovery, and agent access over MCP.

# Introduction

Enrichley helps you build and clean B2B prospect lists — and lets you do it from wherever you work: the app, the API, or your AI assistant.

* **Email validation** — high-quality validation with a special emphasis on catch-all and other "risky" addresses. Instead of throwing those away, Enrichley helps you safely recover more of your list and protect your sender reputation.
* **Lead discovery** — build targeted prospect lists with [People Search](/discovery/people-search), find companies similar to your best customers with [Company Lookalike](/discovery/company-lookalike), and resolve work emails for saved people with [Email Finder](/discovery/email-finder). [Export the results](/discovery/exporting-results) to CSV, Clay, or HubSpot.
* **Agent access** — connect Claude, Cursor, or any MCP-compatible assistant to your account with the [Enrichley MCP server](/mcp/overview), and run all of the above in plain language at the same prices.

## Key features

### Email validation for real-world lists

* Validate individual email addresses through the API.
* Detect and handle catch-all domains so you don't need to discard them by default.
* Designed to keep bounce rates low while maximizing the number of usable contacts.

### Lead discovery

* [People Search](/discovery/people-search) — build a list of people by role, seniority, location, company profile, and more.
* [Company Lookalike](/discovery/company-lookalike) — turn a few seed domains into a list of similar companies.
* [Email Finder](/discovery/email-finder) — find work emails for your saved people, billed only when an email is found.
* [Export results](/discovery/exporting-results) to CSV, Clay, or HubSpot.

### Your AI assistant, connected

* The [Enrichley MCP server](/mcp/overview) brings the whole product into Claude, Claude Code, Cursor, VS Code, Codex, and other MCP clients.
* Free previews and quotes; every paid run needs your explicit confirmation.
* Same account, same credits, same prices as the app.

## Benefits

### Recover more valid emails

On many unverified lists, 40–60% of emails are considered "risky" because they're on catch-all domains. Enrichley is designed to safely recover a large portion of those addresses, often resulting in **20–30% more valid emails** on the same list compared to traditional verification tools.

### Protect sender reputation

By validating emails before you send, you reduce hard bounces and help keep your sending domains and IPs healthy. Enrichley's real-time checks are tuned to help keep bounce rates low when used with clean data sources.

### Use your data more efficiently

Data is expensive. Rather than discarding a large percentage of your list due to catch-all results, Enrichley lets you keep more of the prospects you've already paid to acquire.

## Use cases

* **Sales & marketing teams** – Build prospect lists, find and validate emails, and preserve valuable catch-all leads instead of deleting them.
* **Email deliverability & ops** – Monitor list quality across different sources and maintain strong sender reputation.
* **Product & engineering teams** – Integrate validation checks directly into signup flows, CRMs, and internal tools via the API.
* **AI-native workflows** – Let your assistant research, build, and enrich lists end to end over [MCP](/mcp/overview), with spending always gated on your confirmation.


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