email-list-verify

name

email-list-verify

description

EmailListVerify is an email verification platform that provides APIs and bulk validation tools to check email deliverability, detect invalid or disposable addresses, and reduce bounce rates, allowing teams to maintain cleaner contact lists and improve email campaign performance. Read and write EmailListVerify data through One: maillists, emaildeliverability, emailjobs, placementtestresults, blacklists, inboxplacementtests and more, 16 actions with real parameter documentation. Use whenever the user asks to look something up in EmailListVerify, create or update a record there, or build code against the EmailListVerify API.

EmailListVerify through One

EmailListVerify is an email verification platform that provides APIs and bulk validation tools to check email deliverability, detect invalid or disposable addresses, and reduce bounce rates, allowing teams to maintain cleaner contact lists and improve email campaign performance.

One exposes EmailListVerify through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform email-list-verify if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm EmailListVerify is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real EmailListVerify account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

MailLists

Action	Method	Path	Action id
Download a Finished Email List	GET	/api/maillists/{{id}}	conn_mod_def::GMXuzMD6Kgg::nemvU4OJS2-7LpLg2TpiPQ
Delete a Finished Email List	DELETE	/api/maillists/{{id}}	conn_mod_def::GMXuzKquanA::Z-e6S47ZRPmk9DyrzVFUCw
Start Deep Scan of an Email List	POST	/api/maillists/{{id}}/reverify	conn_mod_def::GMXuzRz-JhA::HvqGoMS8Smy8Jpu0cONFTg

EmailDeliverability

Action	Method	Path	Action id
Verify Email Deliverability	GET	/api/verifyEmail	conn_mod_def::GMXuzSJtK6A::gO4yvaibQGSziYb-rWS3hw
Verify Email Deliverability in Detail	GET	/api/verifyEmailDetailed	conn_mod_def::GMXuzRsgA7g::uUFcEZKqQ12wDH1ZyGKnVQ

EmailJobs

Action	Method	Path	Action id
Create an Email Verification Job	POST	/api/emailJobs	conn_mod_def::GMXuzEYs-Cg::e7tpKmOtQy-Zp8dpsZ3TIw

PlacementTestResults

Action	Method	Path	Action id
Get Placement Test Results	GET	/api/inboxPlacementTests/{{code}}	conn_mod_def::GMXuzEapeyg::FqmHABE4T7eGaIm0j7vB3A

Blacklists

Action	Method	Path	Action id
Check Blacklists	POST	/api/checkBlacklists	conn_mod_def::GMXuzEbiYZA::GbXtcooYSeSh8bv__35Skg

InboxPlacementTests

Action	Method	Path	Action id
Create Inbox Placement Test	POST	/api/inboxPlacementTests	conn_mod_def::GMXuzEbifOg::4yxwedeJSOOnFpS3qYqL0w

EmailListVerificationProgress

Action	Method	Path	Action id
Get Email List Verification Progress	GET	/api/getApiFileInfo	conn_mod_def::GMXuzEwCm0A::ouhkqCyPRWOPrW73xIKVeA

Credits

Action	Method	Path	Action id
Retrieve Available Credits	GET	/api/credits	conn_mod_def::GMXuzKfrmSA::KqYl7XtbQC-6ddexg5g1VQ

EmailListProgress

Action	Method	Path	Action id
Retrieve Email List Progress	GET	/api/maillists/{{id}}/progress	conn_mod_def::GMXuzKhCAjg::mfCM8aVyQfSJX2CdSwCN5A

Contacts

Action	Method	Path	Action id
Search for a Contact's Email Address	POST	/api/findContact	conn_mod_def::GMXuzLYNmCg::dIxfPsP7QKCmhYFmQfxqfg

EmailLists

Action	Method	Path	Action id
Upload Email List	POST	/api/verifyApiFile	conn_mod_def::GMXuzRsCVhA::_T7Wbti6ScG659adAJJY6A

EmailVerificationJobs

Action	Method	Path	Action id
Get an Email Verification Job	GET	/api/emailJobs/{{id}}	conn_mod_def::GMXuzSJz8gA::Gbr-vWkWQAq2nMY1URLXsg

DisposableEmailDomain

Action	Method	Path	Action id
Check Disposable Email Domain	POST	/api/checkDisposable	conn_mod_def::GMXuzYlRjFg::MxpAjMYMRjGvSTsjeym-CA

When a call fails

The error comes from EmailListVerify, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/email-list-verify

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.