MCP Server · Live

Email validation, inside your AI tools

Connect Claude Code, Cursor, VS Code, or Codex to Enrichley over one OAuth-secured endpoint. Ask in plain language; your assistant runs catch-all-aware validation — no API keys in the client.

https://mcp.enrichley.io/mcp

Connect your assistant See pricing

Free on any paid plan · same credits as the API · 10 req/s

AI assistant · Enrichley MCPmcp.enrichley.io

You

Is [email protected] safe to send to?

→ enrichley_validate_email { email: "[email protected]" }

result: "catch_all_validated"

valid: true · mx_provider: "Google Workspace"

1 credit used · 9,998 remaining

Yes — it’s a catch-all domain, but the address itself validated. Safe to send.

Works in the tools you already use

Claude Code

Cursor

VS Code

Codex CLI

ChatGPTComing

Any MCP client that supports remote servers over Streamable HTTP with OAuth can connect. ChatGPT is OAuth-compatible but not yet officially validated.

Tools

One tool live today. More on the way.

Your assistant sees real Enrichley tools and calls them on your behalf. Today that means catch-all-aware email validation.

Live · 1 credit

enrichley_validate_email

Validates an address and returns a catch-all-aware verdict — ok, catch_all_validated, catch_all, invalid, or unknown — plus MX domain, email type, and provider.

Live · free

enrichley_get_account_status

Returns remaining credits and your current rate-limit window so your assistant can check capacity before running a batch.

On the roadmap

More tools coming

Enrichment, people search, and company lookalike will surface as additional MCP tools as they ship — same endpoint, same sign-in.

In practice

Just ask, in the tool you’re already in

No endpoints to wire up, no payloads to craft. Your assistant turns plain requests into validated answers.

Before I send this sequence, is [email protected] actually reachable?

enrichley_validate_email

Validated on a catch-all domain — deliverable. Safe to include.

Clean these 12 leads from the CSV and flag the risky ones.

enrichley_validate_email ×12

10 valid, 1 invalid, 1 unknown. 2 flagged for review.

Do I have enough credits to verify my whole list tonight?

enrichley_get_account_status

9,998 credits left — plenty for the run.

Agent workfloworchestrating 3 tools

HubSpot

new lead created

[email protected]

Enrichley

validate email

✓ deliverable

Smartlead

enrolled in campaign

Enrichley is the validation gate between your other tools — no glue code.

Workflows

Stitch validation into any tool chain

Because Enrichley speaks MCP, your assistant can drop it into a chain of other tools — your CRM, a spreadsheet, Slack, your email platform — and use validation as the gate between them. You describe the flow; the agent runs it. No glue code, no Zapier.

CRM hygiene. Pull new leads from your CRM, validate each one, and write the verdict straight back.
Pre-send gate. Validate recipients before your email tool sends — skip the catch-all and invalid ones.
List cleanup across tools. Read a spreadsheet, validate every row, push only deliverable contacts to your ESP.
Inbound triage. Validate form sign-ups in real time and route only real ones to sales.

The other tools are third-party MCP servers you already use — Enrichley just provides the validation step in the chain.

Setup

Connected in about 30 seconds

Add the server, approve the browser sign-in, and start asking. No API key ever leaves Enrichley.

1Add the Enrichley server to your AI tool
2Approve the OAuth sign-in in your browser
3Ask your assistant to validate an email

One command. Claude Code opens your browser to sign in — no API key touches your machine.

Terminal

claude mcp add --transport http enrichley https://mcp.enrichley.io/mcp

Add the server to your workspace MCP config; VS Code handles the sign-in flow.

.vscode/mcp.json

{
  "servers": {
    "enrichley": {
      "type": "http",
      "url": "https://mcp.enrichley.io/mcp"
    }
  }
}

Add the server

codex mcp add enrichley --url https://mcp.enrichley.io/mcp --scopes account.read,validation.run

Authorize

codex mcp login enrichley

Why a server, not just an API

Built for how you actually work now

The REST API is still there when you want to write code. The MCP server is for when you’d rather just ask.

Agent-native. Your assistant discovers and calls the tools directly — no glue code.
Natural language. “Is this safe to send?” instead of hand-crafting a request body.
No keys in the client. OAuth keeps your API key server-side; the tool holds a scoped token.
Free on any paid plan. Same credits as the REST API, nothing extra to buy.

REST API

Write & deploy code
Store an API key
Craft request payloads
Parse JSON responses

MCP server

Ask in plain language
OAuth — no stored key
Assistant calls the tool
Answer in the chat

Same validation engine. Same credits. Different doorway.

OAuth 2.1 + PKCE

Browser-based sign-in. No secret pasted into a config file.

Key stays server-side

The client receives a scoped token, never your API key.

Least-privilege scopes

account.read + validation.run — nothing more.

Security

Secure by default, revocable anytime

Connecting an AI tool shouldn’t mean handing it a long-lived secret. The Enrichley MCP server is built on OAuth 2.1 with PKCE, so access is scoped, auditable, and yours to revoke whenever you want.

Sign in through your browser — nothing to copy-paste
Scoped to read account status and run validations only
Revoke a client's access at any time, no key rotation

FAQ

Questions, answered

Do I need to be a developer to use it?+

No. If you already use an AI assistant like Claude Code, Cursor, VS Code, or Codex, setup is one command or a few lines of config. After that you just ask your assistant in plain language — it calls Enrichley for you.

Which plans include the MCP server?+

The MCP server is free on any paid Enrichley plan. There's no separate charge for it — validations draw from the same credits as the REST API.

Which AI tools are supported?+

Claude Code, Cursor, VS Code, and Codex CLI work today over the Streamable HTTP transport. Any MCP client that supports remote servers with OAuth should connect; ChatGPT is OAuth-compatible but not yet officially validated.

Does it use the same credits and data as the API?+

Yes. The validate tool returns the same catch-all-aware results as the REST API and consumes one credit per email. Checking your account status is free. The rate limit is 10 requests per second.

Is my API key exposed to the AI tool?+

No. The MCP server uses OAuth 2.1 with PKCE — you sign in through your browser and your API key stays server-side. The AI client only ever holds a scoped token, never your key.

What can it do today?+

Email validation is the only live tool right now. Enrichment, people search, and company lookalike are on the roadmap and will surface as additional MCP tools as they ship — the page will never imply a tool exists before it does.

Pricing that scales with you

Upgrade, downgrade or cancel at any time.

Email verification1 credit

Person enrichment2 credits

Company enrichment2 credits

Email verification1 credit
Person enrichment2 credits
Company enrichment2 credits

Starter

Best for individuals

$59/month

5,000 credits

API access
Hubspot integration
Credit rollover

Give your assistant a verification tool

Connect Enrichley to your AI tool in about 30 seconds and stop guessing whether an address is safe to send.

Read the MCP docs See pricing