Car lead response software
The software that answers your leboncoin and La Centrale buyers
Osmosia replies to the messages on your listings in under 15 minutes, 7 days a week from 7am to 11pm, in your tone. It assesses each buyer's purchase intent and offers an appointment in your calendar.
Connected to the inboxes of 
Features
What Osmosia does in your inbox
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Reply in under 15 minutes
Every message gets a reply in under 15 minutes, from 7am to 11pm, weekends and public holidays included. Messages received overnight are handled from 7am.
Why the first 15 minutes matter -
Write in your tone
Osmosia picks up your register, your usual phrasing and your level of familiarity. It works from your listings and synchronised stock, and never offers a vehicle that is no longer available.
Keeping your tone in automated replies -
Qualify and score every buyer
With every message, Osmosia reassesses purchase intent on a 100-point scale. A question about colour or financing counts for little, a callback request or a proposed date counts for a lot. Without a concrete action, a contact does not go past 60 points.
How to qualify a car lead -
Offer the appointment
Once the buyer is qualified, Osmosia proposes a slot based on your availability and confirms it by message. You set your opening hours, your lunch-break availability and whether your Google listing hours apply.
Reducing missed appointments -
Follow up without pushing
Osmosia follows up to three times after the buyer's last reply, at the intervals you choose. A 'too expensive' or an 'I found something else' stops the follow-ups.
The right follow-up tempo -
Keep you informed, and in control
You set the threshold above which a contact is surfaced to you, with a text or email alert if you want one. Every conversation stays visible in your interface, and you step in whenever you want.
AI serving the car seller, not replacing them
Setup
Three steps, no change of tools
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1
Connect your inboxes
Osmosia connects to the leboncoin and La Centrale inboxes. Nothing to install on the platforms: messages arrive in a single stream.
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2
Sync your stock
Osmosia replies from your real listing data and up-to-date stock.
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3
Set the tone with us
The tone of the replies is set with the Osmosia team, on your own listings. Onboarding is handled by the founders.
No change of tool or working method is required.
Who it's for
Pros who sell on listing platforms
Independent used car dealers, manufacturer-approved repairers, franchised dealers and dealer groups: Osmosia is for professionals who sell used vehicles on leboncoin and La Centrale.
It suits structures with 20 to 130 vehicles in stock particularly well, from the solo seller to the small sales team, and absorbs the volume of enquiries without extra hiring.
Cars, motorhomes, motorbikes or vans: replies adapt to each listing, from a motorhome's interior fit-out to a motorbike's licence category.
Your tools
Where Osmosia sits next to your tools
Osmosia replaces none of these tools. It plugs into your existing setup and takes over between the incoming message and the commercial handover.
- An auto-responder
- Sends the same holding message to every buyer.
- A generic chatbot
- Follows a fixed decision tree, with no knowledge of your stock or your trade.
- A DMS
- Manages stock, invoicing, the police register and listing distribution.
- Osmosia
- Holds the conversation with each buyer, scores their purchase intent and organises the appointment.
They use it
Car professionals who reply first
Nathalie Baggioni
Sales Representative · Pietri Automobiles (Peugeot)
The one who wins the sale is often the one who replies first. With Osmosia, I never miss my chance.
Performances
- 14'
- Response time
- 64%
- Off-hours
- 19h
- Time saved/mo
Alexandre Grives
Owner · AD Expert Nantes
A weekend lead on an Audi that had sat in stock for six months: Osmosia qualified it, I called back on Saturday and closed the sale.
Performances
- 13'
- Response time
- 75%
- Off-hours
- 10h
- Time saved/mo
Daniel Gorgori
Manager · AutoEasy La Réunion
Can you really sell cars at 9 PM without sitting in front of your screen? Yes, with Osmosia every message is handled in under 15 minutes.
Performances
- 14'
- Response time
- 65%
- Off-hours
- 19h
- Time saved/mo
FAQ
Questions about the software
Osmosia connects natively to the leboncoin and La Centrale inboxes. Incoming messages are centralised into a single stream and handled with the same responsiveness and qualification. No extra software has to be installed on the platforms.
Osmosia adapts to each seller's register, usual phrasing and level of familiarity, so exchanges stay consistent with the professional's image at any hour. The seller remains the data controller under the GDPR, including the duty to inform buyers that replies are automated. As soon as a case falls outside the expected frame or calls for a commercial judgment, the thread is handed back to the seller.
The seller sets the qualification threshold themselves, as a percentage, above which a lead is surfaced. They choose whether to receive a text and email notification for each qualified lead and each booked appointment. Every lead and every ongoing conversation stays available in their Osmosia interface, with the vehicle concerned and the full exchange history.
Yes, at any time, from the Osmosia interface. The seller follows ongoing conversations, steps in whenever they want, and sets, vehicle by vehicle, the room for negotiation that guides Osmosia's replies.
Osmosia answers from the real listing data and the synchronised stock, and never offers a vehicle that is no longer available. No conversational AI is infallible: that is why the seller keeps full visibility over the exchanges, can take over at any time, and has the Osmosia team adjust the replies. Cases outside its scope are passed to the seller rather than handled by the AI.
The demo runs on the professional's real cases: their listings, their buyers, their services. Setup means connecting the lead sources, synchronising the stock, then configuring the tone of the replies with the Osmosia team. No change of tool or working method is required. Onboarding is handled directly by the founders.
See Osmosia on your own listings
Free trial or a call: Osmosia replies, qualifies and offers your appointments on your real leads.
- A reply to every lead in under 15 min
- Your best contacts identified and scored
- Qualified appointments in your calendar