Documentation

Everything you need to install, use, and get the most out of Nexus Negotiator — your AI negotiation coach for Gmail.

🚀Getting Started

Nexus Negotiator is a Chrome extension that works directly inside Gmail. Setup takes under 2 minutes — no API keys or configuration required.

Install the Extension

Open the Chrome Web Store and search for Nexus Negotiator, or click the direct install link below.

Click "Add to Chrome" on the extension listing page.

In the confirmation dialog, click "Add extension". Chrome will install it automatically.

You should see the Nexus Negotiator icon appear in your Chrome toolbar. If it's hidden, click the puzzle piece icon (Extensions) and pin it.

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Info: Nexus Negotiator requires Chrome 114 or later. It works on all operating systems where Chrome is supported.

Navigate to Gmail in your Chrome browser.

Click the Nexus Negotiator icon in your toolbar to open the side panel.

Click "Sign in with Google" and complete the Google OAuth flow. You will be asked to grant read-only access to your Gmail.

Once authenticated, you'll see your account name and remaining analyses in the side panel header.

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Tip: Your email data is never stored on our servers. It is sent transiently to Google's Gemini API for analysis, then immediately discarded. See our Privacy Policy for full details.

Open the Side Panel

After installation, Nexus Negotiator lives in Gmail's native side panel. You can open it in two ways:

Click the Nexus Negotiator toolbar icon while Gmail is the active tab.
Use the keyboard shortcut Alt+N (Windows/Linux) or ⌥N (Mac) when in Gmail.

🧠How to Use

Run Your First Analysis

Open any email thread in Gmail that you want coaching on — a salary negotiation, a sales deal, a vendor contract, or a job offer.

Open an email thread in Gmail. The longer and more context-rich the thread, the better the analysis.

Open the Nexus Negotiator side panel. It will automatically detect the active thread.

Select your Negotiation Mode (see below for details on each mode).

Click "Analyze Thread". Results appear in 3–5 seconds.

Reading the Results

After analysis, the panel displays a structured negotiation brief:

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Leverage Score

Rates your position as High, Medium, or Low based on urgency signals, alternatives mentioned, and power dynamics in the thread.

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Hidden Signals

Bullet-point breakdown of subtext — urgency cues, hedging language, false scarcity, concession patterns, and emotional state.

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Strategic Recommendation

A plain-English summary of the situation and the specific tactic Nexus recommends you use in your response.

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AI Draft Response

A full email draft, written in your chosen negotiation mode, ready to copy into Gmail with one click.

Negotiation Modes

Select a mode before running your analysis to shape the tone and strategy of the AI draft response. You can re-run with a different mode at any time.

🤝Collaborative

Win-win framing for long-term relationships. Focuses on mutual benefit, shared goals, and preserving goodwill.

Best for: Partner negotiations, client relationships, team agreements

💪Firm

Holds your position confidently without being aggressive. Signals you have alternatives and won't overly concede.

Best for: Salary negotiations, vendor pushback, contract terms

🔍Inquisitive

Gathers more information before committing. Uses questions to surface the other party's real constraints.

Best for: Early-stage deals, complex situations, when you need more data

🌟Accommodating

Strategically builds goodwill and strengthens the relationship. Useful when the relationship matters more than the outcome.

Best for: Key partnerships, escalated situations, trust-building

Copy the AI Draft

After analysis, scroll to the "AI Draft Response" section at the bottom of the panel.

Review the draft — you can edit it directly in the panel if needed.

Click "Copy to Clipboard" to copy the draft.

Switch to Gmail, click "Reply" or "Compose", and paste the draft (Ctrl+V). Review, personalize, and send.

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Tip: Always review and personalize the draft before sending. The AI provides a strong strategic foundation — your personal voice and specific context make it complete.

⚡Upgrade Your Plan

Plans Overview

Nexus Negotiator offers three plans. All plans include the full feature set — the difference is in the number of analyses per month.

Plan	Price	Analyses / Month	Best For
Free	$0/mo	10	Trying it out
StarterPopular	$4.99/mo	100	Regular users
Pro	$9.99/mo	500	Power users & teams

View Full Pricing →

How to Upgrade

Open the Nexus Negotiator side panel in Gmail and click "Upgrade" in the top-right of the panel, or visit nexusnegotiator.com/pricing.

Select your desired plan (Starter or Pro) and click "Upgrade".

You'll be redirected to a secure Stripe checkout page. Enter your payment details and click "Subscribe".

After payment, you'll receive a confirmation email with your license key. Your plan upgrades immediately — no restart needed.

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Info: Upgrades take effect immediately. Your monthly analysis counter resets on the same calendar day each month (your billing date).

Manage Subscription

You can view, change, or cancel your subscription at any time:

Visit nexusnegotiator.com/manage and sign in with the same Google account you use for the extension.

Click "Manage Subscription in Stripe" to open the Stripe customer portal.

From the portal you can: update your payment method, download invoices, switch plans, or cancel.

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Note: Cancellations take effect at the end of your current billing period. You retain full access to your paid tier until then.

🔑License & Activation

Nexus Negotiator uses Google OAuth for authentication — there is no separate license key to enter for most users. Your subscription is linked directly to your Google account. If you received a license key (e.g., from a promotional campaign or manual purchase), follow the steps below.

Finding Your License

After a successful purchase, your license details are available in two places:

Confirmation email — sent to the email address used during checkout, subject line: "Your Nexus Negotiator license".
Account portal — sign in at nexusnegotiator.com/manage and your active license key is shown under "License Details".

Activating Your License

Open Gmail and click the Nexus Negotiator icon to open the side panel.

Click the gear icon (⚙️) in the top-right of the panel to open Settings.

Scroll to "License" and paste your license key into the input field.

Click "Activate". The panel will confirm your tier and monthly limit immediately.

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Tip: If you signed up with Google OAuth and subscribed via the portal, your license is activated automatically — you do not need to enter a key manually.

Transfer to New Device

Because your license is tied to your Google account, switching devices is seamless:

Install Nexus Negotiator on your new Chrome browser/device.

Open Gmail and sign in with the same Google account.

Your subscription and tier are restored automatically — no key entry required.

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Note: Your license supports 1 active user account. It cannot be shared across multiple Google accounts simultaneously.

💬Frequently Asked Questions

Is my email data stored on your servers?

No. Email content is sent transiently to Google's Gemini API for real-time analysis and is never written to disk or stored in any database. Only your account metadata (email address, subscription tier, usage count) is stored. See the full Privacy Policy for details.

Does Nexus Negotiator work outside of Gmail?

Currently, Nexus Negotiator is built specifically for Gmail (mail.google.com). Support for Outlook and other email clients is on our roadmap. If you use Outlook, sign up for updates at nexusnegotiator.com.

How do I reset my monthly usage counter?

Usage resets automatically on your billing date each month. If you believe your counter is incorrect, visit nexusnegotiator.com/manage and click 'Refresh Usage' — or contact support@nexusnegotiator.com.

Can I get a refund?

Yes. We offer a 7-day money-back guarantee for all paid plans. Contact support@nexusnegotiator.com within 7 days of your first charge and we'll process a full refund, no questions asked.

Do I need my own Google Gemini API key?

No. Nexus Negotiator uses our shared API infrastructure — you don't need to set up or pay for your own Gemini API key. The per-analysis costs are covered by your subscription.

Does it work offline?

Analysis requires an internet connection to send data to the AI backend. The extension itself loads offline, but clicking 'Analyze Thread' requires connectivity.

Still have questions?

Our support team is here to help. Usually responds within 24 hours.

Email Support View Pricing