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BillionVerifyn8n Community Node

BillionVerify email verification for n8n

BillionVerify is the email verification node for n8n. Validate addresses in real time inside any workflow — before you add them to a CRM, send a campaign, or trigger automation — with 99.9% SMTP-level accuracy. The node also works as a tool an n8n AI Agent can call on demand.

Get a free API keyView on npm

Node operations

One node, three operations — pick the one your workflow needs.

Verify Email

Validate a single address in real time. Returns status (valid, invalid, risky, catch-all, role, disposable), deliverability, a confidence score, MX data, and the reason.

1 credit
Verify Emails (Bulk)

Validate up to 50 addresses in one synchronous call. Each result is emitted as its own item, so you can filter and route them downstream.

1 credit / email
Check Disposable

Detect throwaway and temporary email domains with an in-memory lookup. Block junk signups at the edge of a workflow.

Free

Set it up in three steps

  1. 1

    Install the node

    In n8n, open Settings → Community Nodes → Install and enter n8n-nodes-billionverify.

  2. 2

    Add your API key

    Create a key in your BillionVerify dashboard under API Keys (it starts with sk_), then add it as BillionVerify API credentials in n8n.

  3. 3

    Drop it into a workflow

    Add the BillionVerifynode, pick an operation, and map the email field from a previous node. That's it.

How it works

Verification sits right before the action — only deliverable addresses move forward.

TriggerForm submission, new CRM lead, or a row in a sheet
BillionVerifyBillionVerifyVerify the email address in real time
IF deliverableBranch on is_deliverable
ActAdd clean leads to your CRM, route the rest for review

Works as an AI Agent tool

The node is exposed with usableAsTool, so you can attach it to an n8n AI Agent. The agent can verify or clean email addresses on demand — no extra wiring required.

When to use it

  • Verify form submissions before they become CRM contacts.
  • Clean cold-outreach lists before a sequence sends.
  • Gate newsletter signups so disposable and invalid addresses never subscribe.
  • Give an n8n AI Agent a verification tool it can call on demand.

Three ways to connect

n8n node

The community node above — install it and start verifying.

Integrately

1-Click connect BillionVerify with 1500+ apps, no code.

REST API

Call the verification API directly from any stack.

FAQ

How do I install the BillionVerify node in n8n?

Open Settings → Community Nodes → Install in your n8n instance and enter n8n-nodes-billionverify. Then create BillionVerify API credentials with your API key and the node is ready to use.

Does verifying my API key use credits?

No. The credential test calls our free disposable-check endpoint, so validating your key in n8n costs zero credits.

Can an AI Agent use BillionVerify as a tool?

Yes. The node is exposed as an AI tool (usableAsTool), so you can attach it to an n8n AI Agent and have the agent verify or clean email addresses on demand.

How many emails can I verify at once?

The Verify Emails (Bulk) operation accepts up to 50 addresses per call. For larger lists, upload a CSV or XLSX file to the BillionVerify file API, which runs asynchronously with webhook callbacks.

What does a verification result include?

Each result returns a status (valid, invalid, risky, catch-all, role, disposable, or unknown), a deliverability flag, a confidence score, MX records, the reason, and credits used.

Start verifying in n8n

Create a free account, grab your API key, and drop BillionVerify into the workflows your team already runs.

Get started free