Anymailfinder is an email finder that some builds swap in for Hunter, or run beside it when a vertical has stubborn domains. It charges only when it returns a fully verified address, which changes the economics on lists where many lookups come back empty. n8n calls its REST API with a bearer token.
What you need
- An Anymailfinder account. Paid plans start around $49 per month as of 2026; there is also a short trial. Their pricing page has current numbers.
- A running n8n instance.
- About 10 minutes.
Get the API key
- Log in and go to the API page of your account.
- If the key is hidden, click “Enable API” to reveal it. On new accounts the API is off until you do this, which is unusual among the tools in this stack and easy to miss.
- Copy the key.
Rotating the key later happens on the same page, so if it ever leaks, one click there plus one credential update in n8n closes the hole.
Create the credential in n8n
There is no dedicated Anymailfinder integration in n8n, so use a generic Header Auth credential.
- Credentials, Add credential, select Header Auth.
- In Name, enter
Authorization. - In Value, enter
Bearerand then the key, separated by a single space. - Save as “Anymailfinder LGL” to match how workflow templates reference credentials in this library.
Test it
Anymailfinder has a free account endpoint that never spends credits, which makes it the ideal test target.
- HTTP Request node, method GET, URL
https://api.anymailfinder.com/v5.1/account. - Authentication: Generic Credential Type, Header Auth, “Anymailfinder LGL”.
- Execute the step.
A 200 response shows your account email and credits_left. Seeing the credit number confirms both the key and the header format in one call. A 401 usually means the Bearer prefix is missing from the credential value.
Cost and one gotcha
Around $49 per month at entry level, but the verified-only billing is the real number to model: you pay per address delivered rather than per attempt. The gotcha cuts the other way. Because failed searches are free, it is tempting to throw whole unfiltered lists at the API, and the searches still take time and rate limit headroom even when they cost nothing. Keep it behind the same qualification filter as any other enrichment tool so run times stay predictable.
Where the library uses Anymailfinder
No published system ships with it in the default stack today. It is registered here as the standard substitution when Hunter’s coverage is thin for a niche, and the swap is one node plus this credential in the enrichment workflow.