Does every validation spend credits?

Yes. Validate Email consumes API credits on each call and can return the remaining balance inline when credits_info is set, while Get Credit Balance reports it separately and Get API Usage gives usage statistics between two dates. Lyro can check the balance before pushing a large batch through.

How many addresses can be validated in one call?

Batch Validate Emails handles up to 200 addresses in real time, optionally with activity data attached. Anything larger goes through Send File as a CSV or TXT upload, and List Evaluator gives a quick quality read on a list before you spend credits validating all of it.

When can a submitted file be deleted from ZeroBounce?

Only once the job is finished. Delete file, Delete AI Scoring File, and Delete Email Finder File all require the status to be Complete, so Lyro polls Email Finder File Status or Domain Search File Status before trying to clear anything off ZeroBounce's servers.

Can ZeroBounce find an address rather than only check one?

Yes, in two forms. Domain Search Single identifies the common email formats a company uses from its domain, and Email Finder Send File takes a CSV of names and domains for a bulk lookup, with Get Email Finder File returning the results once the job completes.

Zerobounce MCP integration

Validates single addresses or batches of 200, scores lead quality, reports inbox activity, and maintains allow and block list filters.

Connect Zerobounce See all integrations

20actions available

What your agent can do with Zerobounce

Every action runs live through MCP. Nothing to build, nothing to maintain.

Validate email
Lyro verifies a single email address in real time and returns detailed results. Support can confirm valid contact information before proceeding instead of risking bad deliverability.
Email finder send file
Lyro uploads a file for bulk email finding in ZeroBounce. Large contact enrichment jobs run in the background instead of delaying customer workflows.

See all 20 actions

How businesses use Zerobounce + Lyro

Each card is one request a support team gets, and the Zerobounce actions Lyro runs to close it.

Check one address before anything is sent to it
Lyro validates the address in real time for deliverability and domain details, scores it for lead quality, and reports how recently that inbox opened or clicked.
Validate EmailAI Scoring Single EmailGet Activity Data
Clean a list before it costs you a send
Lyro runs a quick health check on the list, uploads the full CSV or TXT for bulk validation, and clears the file from ZeroBounce once the job has completed.
List EvaluatorSend FileDelete File
Work out an address you do not have yet
Lyro identifies the email pattern a company uses from its domain, submits a CSV of names and domains for bulk lookup, and downloads the results when the job finishes.
Domain Search SingleEmail Finder Send FileGet Email Finder File
Keep validation honoring your own rules
Lyro adds or amends the custom allowlist and blocklist filters validation applies, audits what those filters currently hold, and checks the credit balance before a large run.
Allow Or Block ListList FiltersGet Credit Balance

How it works

Get started in 3 steps

Connect once, then just ask. There is no workflow builder to learn and nothing to maintain — Lyro reads the Zerobounce actions it has and picks the ones a request needs.

01
Connect Zerobounce
Authorize the Zerobounce account your team already uses — one consent screen, no API keys, no mapping tables. Lyro can only do what you granted that account, and you can disconnect it at any time.
02
Tell your agent what you need
Describe the job the way you would hand it to a teammate. Lyro maps it to the Zerobounce actions that close it and chains as many as the request needs.
03
Watch it work
The agent runs the actions inside the conversation the customer is already in, so nobody copies data between tabs and your team can take over at any point.
Get started free

Zerobounce · Lyro

Everything else about Zerobounce

Setup, permissions, and the limits of what Lyro can do inside Zerobounce.

Yes. Validate Email consumes API credits on each call and can return the remaining balance inline when credits_info is set, while Get Credit Balance reports it separately and Get API Usage gives usage statistics between two dates. Lyro can check the balance before pushing a large batch through.

Every action available in Zerobounce

All 20 actions your agent can call on Zerobounce, straight from the live MCP connection.

Get activity data
Get activity data (opens, clicks, etc.) for a given email.
AI scoring single email
Score a single email address using ZeroBounce AI.
Allow or block list
Manage allowlist and blocklist for email validation.
Batch validate emails
Validate a batch of email addresses in real time.
Delete AI scoring file
Remove a completed AI scoring file from ZeroBounce servers.
Delete file
Delete a file that was submitted for bulk validation.
Domain search file status
Get the processing status of a file submitted for bulk domain search.
Domain search get file
Download the results file for a completed bulk domain search job.
Domain search send file
Upload a file for bulk domain search.
Domain search single
Identify common email address formats for a given domain.
Delete email finder file
Delete a file that was submitted for bulk email finding.
Email finder file status
Get the processing status of a file submitted for bulk email finding.
Email finder send file
Upload a file for bulk email finding.
Get API usage
Retrieve API usage statistics for a given period.
Get credit balance
Retrieve your current ZeroBounce email validation credit balance.
Get email finder file
Download the results file for a completed bulk email finder job.
List evaluator
Evaluate the quality of an email list.
List filters
Retrieve all email addresses and domains in your allowlist and blocklist filters.
Send file
Upload a file for bulk email validation.
Validate email
Validate a single email address in real time.