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Mantle

Build internal agents to automate back office work with one prompt

Mantle connects to all your tools: your CRM, Mail, Calendar, Payments, Product Analytics, and more. With just one prompt, you can create agents that handle back office work for you. These agents can automate reports and email them to you, drafts emails right in your email client, generates pre-meeting research directly in your calendar event, and much more. They run quietly in the background, react to changes in real time, follow a schedule or work when you chat with them. You didn’t start up to stay stuck in admin. Turn your company AI-native with Mantle.
Active Founders
Samrath Chadha
Samrath Chadha
Founder
Founder @ Mantle (YC F25)
Gautam Paranjape
Gautam Paranjape
Founder
Founder @ Mantle (YC F25)
Company Launches
Mantle - Automate your back office
See original launch post

Hey! We’re building Mantle - a clear-cut way to do your repetitive work on autopilot.

TL;DR: We think you’re wasting human potential on boring shit. Book a call here.

We do this by:

  1. connecting to your tools: pulling information securely, and building a constantly updating context layer for agents to operate on
  2. creating and managing your agents: enter in one prompt, and our system will make the perfect agent to do your work. no fixed workflows, we focus on the goal and allow agents to move dynamically like a human would
  3. handling updates, schedules and everything else: whether a new lead pops up in your CRM, a new support ticket rolls into your email, or it’s Friday and you need a report on which leads are the most likely to churn - Mantle handles it all and runs the agents in the background

Here’s Mantle doing a few cool things:

1. Searches Stripe for invoices, PostHog for product usage data, and HubSpot for the customer profile - it then uses its context to generate a report with action items for your customers and sends them to you in Slack. We recommend putting this on a daily schedule!

2. Triggers automatically when you get an inbound meeting - goes through your past calls with the person (if any), searches the web and your Notion for information about them - and writes the information directly into your calendar app (it edits the invite only for you)!

3. When you get an email - if valid (not spam/promotion), we auto-draft a reply to it and store it in your email client. This draft matches your exact tone and has insights from your past emails, Notion, and whatever else you give it access to. It uses the context layer to learn and search about the person through these tools extremely efficiently, quickly finding all relevant data.

We’ll boost your team’s efficiency 10x in a week. Book a call here to make that happen.

Mantle
Founded:2025
Batch:Fall 2025
Team Size:2
Status:
Active
Location:San Francisco
Primary Partner:Aaron Epstein