CS Agent — AI-Powered Customer Service

How to use CS Agent

Setup guide & provider comparison

Quick start

Choose your AI Provider from the left sidebar and paste your API key. It saves automatically.

Paste the full customer email thread — not just the latest message. The more history, the better the reply.

Add context — order numbers, account info, prior complaints, product details. Attach screenshots or photos if relevant.

Hit Generate response (or press Ctrl+Enter) and copy the drafted reply.

AI Providers — which one to choose?

🟣 Anthropic — Claude

Paid — free trial credits

The most capable option for customer service work. Excellent at reading long conversation histories, analyzing images (screenshots, product photos), and writing nuanced, context-aware replies. Recommended if you want the best quality responses.

Get API key — console.anthropic.com View pricing

💡 New accounts get free credits to start. After that, pay-as-you-go. Claude Sonnet 4 is the sweet spot of cost vs quality.

🔵 Google — Gemini

Free tier available

Google's AI with a generous free tier. Gemini 2.0 Flash is fast and capable — great for most customer service tasks. Free usage has rate limits (requests per minute/day) but is more than enough for testing and low-to-medium volume use.

Get API key — aistudio.google.com View pricing

💡 Gemini 2.0 Flash is free up to 1,500 requests/day — ideal for getting started at zero cost.

⚡ Groq

Free tier available

Groq runs open-source models (Llama, Mixtral) on custom hardware — the result is extremely fast responses, often 5–10× faster than other providers. Great for quick drafts. Free tier has daily token limits. Uses open-source models which are slightly less polished than Claude or Gemini for nuanced writing.

Get API key — console.groq.com View pricing

💡 Best if speed is the priority. Llama 3.3 70B is the recommended model — open-source but surprisingly capable for CS work.

🔀 OpenRouter

Free models available

A marketplace that gives you access to many AI models through a single API key — including free community-hosted models. This app currently uses only free models for OpenRouter, making it perfect for testing at zero cost. Quality varies per model; GPT-4o Mini is a reliable starting point.

Get API key — openrouter.ai/keys Browse free models

💡 Sign up is free, no credit card needed for free models. Good for exploring different models before committing to a paid provider.

Quick comparison

Provider	Cost	Speed	Quality	Images	Best for
🟣 Anthropic	Paid	Fast	★★★★★	✓ Full	Production use
🔵 Gemini	Free tier	Fast	★★★★☆	✓ Limited	Free daily use
⚡ Groq	Free tier	⚡ Fastest	★★★☆☆	✗ No	Speed priority
🔀 OpenRouter	Free models	Varies	★★★☆☆	✗ No	Testing & exploring

Tips for better responses

📋 Paste the full email thread — not just the latest message. Include every previous reply so the AI sees all prior commitments and won't contradict them.

🖼 Upload product photos or screenshots — if the customer sent an image of a "defect", paste it here. The AI will analyze it and may find it's normal behavior, saving you a wrong escalation.

📄 Paste your policies in the constraints field — refund windows, escalation rules, what's covered under warranty. The AI will work within them instead of making promises you can't keep.

🔐 Your API key stays on your device — it is saved in your browser's local storage and is never sent to any server other than the AI provider you choose.

Settings

AI Provider

API Key

Get your key from console.anthropic.com

Model

Response tone

Response language

Response length

Company / brand name

Rep name (optional)

Department

Your API key is used directly in the browser and is never stored or sent to any server other than the provider you select.

Customer message & context

Customer email / message *

Conversation history & context

The more context, the more specific (less generic) the reply will be.

Policies / constraints

Reference links (product pages, manuals, FAQs…)

AI will fetch and read each page to use as context when drafting the reply.

Attachments (images for context)

Drop images / screenshots here or click to browse

Urgency level

0 chars

Drafted response

Your AI-drafted response will appear here.
Fill in the customer message and press Generate response.

QA Settings

Provider & model

Uses the same provider and API key configured in the Draft tab.

Evaluation strictness

Strict mode flags minor tone issues and missed opportunities. Lenient only surfaces serious mistakes.

Focus areas

Accuracy & policy compliance Completeness — all issues addressed Tone & empathy Resolution & next steps Agent consistency Legal / escalation risk

Company policies (optional)

Without this, the AI judges against general best practices.

Conversation to review

Full conversation thread *

The more complete the thread, the more accurate the review. Include all previous agent replies — this is how the AI catches inconsistencies between agents.

Additional context (optional)

0 chars

Review results

Paste a conversation thread and press Run QA Review.

The AI will analyze for accuracy, tone, completeness, consistency, and escalation risks.

Select a platform

Add a platform on the left
(e.g. Shopify, Amazon, TikTok Shop)

Each platform keeps its own references — manuals, policies, promo links — so the AI never mixes them up.