Inbox Spy

Captured emailsAcross your watchlist

Companies trackedEach in its own folder

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Companies

Organize the brands you track into navigation folders.

← All companies

COMPANY

NicheCompany folder

Captured emails

Everything received from this company.

SPY INBOX SETUP

Where should your spy emails arrive?

Choose the easiest option for you. You can switch later without losing company folders or captured emails.

Your archive stays private.Inbox credentials and captured emails are stored only on this machine.

QUICK START

Use your Gmail inbox

We create aliases such as yourname+linear-a1b2@gmail.com. They arrive in your normal Gmail inbox and stay organized here.

Your Gmail address

Example spy addressyourname+company-code@gmail.com

Connect Gmail for hourly collectionAllow read-only access so Inbox Spy can capture matching emails automatically.

Connect Gmail

Manual OAuth credential fallback ADVANCED

Add read-only Google OAuth credentials so Inbox Spy can fetch matching emails every hour. Without these, aliases work but emails must be forwarded through the inbound webhook or imported.

How to get these three valuesAbout 5 minutes · use the same Gmail account entered above

Create a Google Cloud project and enable Gmail APIOpen Gmail API in Google Cloud, select or create a project, then click Enable.
Configure the OAuth consent screen and add yourself as a testerOpen Google Auth Platform. Set the audience to External, then open Audience. Under Test users, click Add users and add the exact Gmail address entered above.
Create the Client ID and Client SecretOpen OAuth Clients. Create a Web application client and add this authorized redirect URI:https://developers.google.com/oauthplaygroundCopy the resulting Client ID and Client Secret into the fields below.
Generate the Refresh TokenOpen Google OAuth Playground. Click the gear, enable Use your own OAuth credentials, and paste your Client ID and Secret. In Gmail API v1, select this read-only scope:https://www.googleapis.com/auth/gmail.readonlyClick Authorize APIs, sign in, then click Exchange authorization code for tokens. Copy the Refresh token.

Seeing “Ошибка 403: access_denied”?Your OAuth app is in Testing mode and the signed-in Gmail account is not an approved test user.

Open Google Auth Platform → Audience.
Under Test users, add the Gmail address you will use in OAuth Playground.
Save, wait a minute, then authorize again in OAuth Playground using that same account.

Keep these private. They let this local app read your Gmail. Do not send them to anyone.

Google OAuth Client ID Google OAuth Client Secret Google OAuth Refresh Token

You can change this at any time.

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Latest captures

Companies

Captured emails

Where should your spy emails arrive?

Use your Gmail inbox

Use your own inbound domain

Track a company

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Create a niche