Verify emails (instant and bulk), find professional emails, reverse-lookup people and companies, validate names and resolve domain MX/Whois with Clearout.
Clearout ships in the w6w first-party pack. It declares 27 actions, 3 health checks, and the host runs its code in a sandbox that never sees the credential.
io.w6w.clearoutClearout is a data-quality engine for go-to-market workflows: it checks whether an email address will actually be delivered, finds the professional email of a person at a company, and enriches a contact from an email, a LinkedIn profile or a domain.
A workflow can verify a single address in real time (status, safe-to-send, disposable, free, role and gibberish flags, a suggested correction), run one targeted check such as catch-all or business account, or upload a list for bulk verification and poll it to a result file URL. It can find an email from a name and a company, read back a search that timed out and was queued, run the same as a bulk list, look a person up from an email or LinkedIn URL, look a company up from a domain, validate a name for profanity or gibberish, autocomplete a company into domains, and resolve a domain’s MX and Whois records. Account credits, plan and rate limits are readable for free.
The connection holds a Clearout API token (Developer > API in the Clearout dashboard), sent as a bearer token. Verification, finder and lookup calls spend credits; the vendor’s *@example.com test addresses (for example valid@example.com) do not.
Three routes to the same 27 actions. The Workflow tab is generated from Clearout's own manifest and carries its real ids, so it is copy-pasteable; the Code and CLI examples are the same call for any action on any app, so every app-specific value in them is a blank you fill in.
bulk-find-download Request a download URL for the result file of a finished bulk email finder list.
bulk-find-start Upload a CSV/XLSX of names and company domains for bulk email finding. Returns a list ID to poll with Get Bulk Find Progress. Costs a credit per address found.
bulk-find-status Read the progress status and percent complete of a bulk email finder list.
bulk-verify-download Request a download URL for the result file of a finished bulk email verification list.
bulk-verify-start Upload a list of emails (or a CSV/XLSX file) for bulk verification. Returns a list ID to poll with Get Bulk Verify Progress. Costs a credit per address.
bulk-verify-status Read the progress status and percent complete of a bulk email verification list.
check-email-attribute Run one targeted check on an address: catch-all domain, disposable, business (work) account, free provider, role account or gibberish. Returns the vendor's result object as is.
find-company-domains Autocomplete a company name, domain or website URL into matching company domains. Returns the vendor's result as is.
find-email Find a person's professional email address from their name and a company domain or name. Returns candidate addresses with a confidence score. Costs a credit when an address is found.
get-credits Read the account's remaining credits, split by pay-as-you-go, subscription and bonus, and the low-balance alert threshold. Free.
get-find-email-status Read the result of an instant email search that timed out and was queued.
get-limits Read the Email Verifier API rate limit and bulk-verify concurrency limit (total and remaining). Free.
get-plans Read the account's current plan and add-ons (name, status, type, charge, next credit allocation and renewal dates). Free.
get-verify-credits Read available credits plus the daily verify limit and when it resets. Free.
list-finder-lists List bulk email finder lists with their result summaries, with cursor pagination.
list-verify-lists List bulk email verification lists, newest filters first, with cursor pagination.
reverse-lookup-domain Find company information (name, LinkedIn page, address) for a domain. Costs a credit when a company is found.
reverse-lookup-email Look up the person behind an email address: name, title, company, LinkedIn profile and location. Costs a credit when a person is found.
reverse-lookup-linkedin Look up a person from their LinkedIn profile URL: name, title, company and location. Costs a credit when a person is found.
verify-email Verify one email address in real time and get its status, whether it is safe to send to, and disposable / free / role / gibberish flags. Costs a credit.
A workflow step names the app and the action, and the editor fills in the
connection when you pick one. This is the Step shape from the
workflow spec, carrying Clearout's real ids.
{
"manifestVersion": "2",
"name": "clearout-example",
"steps": [
{
"id": "bulk-find-download",
"uses": {
"app": "io.w6w.clearout",
"action": "bulk-find-download",
"connection": "conn_YOUR_CONNECTION_ID"
},
"with": {
"listId": "<listId>"
}
}
]
}bulk-find-download bulk-find-start bulk-find-status bulk-verify-download bulk-verify-start +22 more actions available
Every app-specific value here is a blank you have to fill in. An
app action is reached through the connection that authenticates it, so the
address is a connection id, not the app id — and connections belong to your account,
so a public page cannot know yours. Create one for Clearout, then fill in
the three blanks: conn_YOUR_CONNECTION_ID, the action key, and the
parameters that action declares. The call itself is real — the shape is transcribed
from the studio's own snippet builder, which prints the same kind of blanks — but
nothing in it is specific to Clearout. The Workflow tab is where this app's
real ids are.
npm install @w6w/sdkyarn add @w6w/sdkpnpm add @w6w/sdkdeno add npm:@w6w/sdkimport { W6wClient, isActionRun } from "@w6w/sdk";
// Reads W6W_BASE_URL and W6W_TOKEN from the environment when omitted.
const client = new W6wClient();
const envelope = await client.run({
urn: "conn_YOUR_CONNECTION_ID",
action: "bulk-find-download",
payload: {
listId: "<value>",
},
});
if (isActionRun(envelope)) console.log(envelope.value); npm install -g @w6w/cli w6w run conn_YOUR_CONNECTION_ID --action bulk-find-download --payload '{"listId":"<value>"}' Give an AI agent Clearout — without giving it Clearout's credentials. One MCP endpoint exposes every app, function and workflow the caller is entitled to, as tools it can discover and run. Access is granted per team while we onboard.
One tool call{
"name": "w6w_invoke",
"arguments": {
"ref": "app:io.w6w.clearout#bulk-find-download",
"input": {
"listId": "<listId>"
}
}
}
Every tool names its target with a single ref. The
app: form above doesn't name a connection at all — the
host resolves which of the caller's Clearout connections to sign
with, and refuses rather than guesses when the answer is ambiguous.
The token is attached host-side, at the moment of the call. It is never a tool argument, never in the model's context, and never in a transcript — so a prompt injection has nothing to exfiltrate.
Tools are derived per end user from what that person has actually connected and is entitled to — not one shared bot identity carrying the union of everyone's access.
Multi-step work runs on the workflow engine and returns a run handle the agent can poll — retries, branching and state survive the conversation that started them.
Clearout's declared health checks are on the surface too, so an agent can tell "the vendor is down" from "your credential expired" before it burns a retry on either.
The MCP surface is part of the hosted platform. Clearout itself is MIT, and the runtime that executes it is source-available (FSL).
Clearout declares its own checks, so its health is a property of the app rather than something the host guesses at.
Unauthenticated GET /account/credits. Clearout's JSON `failed` envelope with error code 1000 passes: it proves the application is answering.
Remaining credits vs the account's low-balance threshold, from GET /account/credits.