How it works
Features
Built for businesses that want precise, on-brand AI — without the complexity.
Websites, PDFs, DOCX, Notion, Confluence, plain text — all unified in one agent.
Answers only from your indexed content. No fabrications. No off-brand responses. Ever.
Widget, shared link, Slack, or API. One click to go live wherever your customers are.
Automatic summaries, sentiment scores, and lead identification — out of the box.
Set your tone, match your brand colors and logo, support multiple languages.
Full programmatic control over chat, projects, documents, and conversations.
Knowledge Sources
Connect all your content — Marseil builds a unified knowledge base automatically.
Deploy
Four ways to deploy. Pick the one that fits your workflow — or use all four at once.
Floating chat bubble on any page. Copy one script tag — done in 60 seconds.
<script src="https://cdn.marseil.ai/widget.js"
data-key="YOUR_KEY"></script> One-click shareable URL. No embed needed — perfect for internal teams.
https://chat.marseil.ai/s/your-agent Answer questions directly inside Slack channels. Your team never leaves the tool.
/marseil ask How do refunds work? Full programmatic control. Build custom UIs or pipe answers into any workflow.
POST /v1/chat
{ "project": "xxx", "message": "..." } Pricing
No surprise charges. Upgrade or downgrade anytime.
Basic
Perfect for small sites & side projects.
Professional
For growing teams that need more power.
Ultimate
Scale across your entire organization.
All plans include a 30-credit free trial. No credit card required to start. See full comparison →