Verified B2B contact details, right inside ChatGPT
Ask ChatGPT to find a company's manager, their email and their phone number. Listar runs the search, ChatGPT puts it into your prospecting.
https://api.listar.fr/mcpPaste this URL in ChatGPT: Plugins › + › Create custom MCP server (developer mode).
SoonComing soon to the ChatGPT apps directory: setup will take one click.
What ChatGPT can do with Listar
Listar's tools work in plain language, in your chats.
Recurring prospecting
Ask ChatGPT to find new businesses in a city, and Listar adds the decision makers and their contact details.
- Legal directors from the official register
- The manager's phone and email
- A table ready to paste into your CRM
Enrich a list
Paste a list of contacts or companies in the chat: ChatGPT enriches them in parallel.
- Verified work emails
- Phone numbers with work or personal usage
- Nothing is billed when nothing is found
Prepare a meeting
Before a call, ask who runs the account, who to contact and how to reach them.
- Company profile: SIREN, address, activity
- Decision makers ranked by role
- LinkedIn profile when known
Example request
Find the decision makers of the company Games Factory in Quetigny, then the work email of its president.
Setup on ChatGPT
Two minutes, once. Until the apps directory listing, through developer mode.
Turn on developer mode
In ChatGPT, open Settings › Security and turn on "Developer mode". It lets you add a custom MCP server.
Add the Listar server
Open Plugins, click "+" then "Create custom MCP server". Name it Listar, paste the connector URL, keep OAuth authentication, tick the warning and confirm.
Connect your Listar account
Click "Sign in with Listar", sign in or create your account, then allow access. You return to ChatGPT with the server active.
Use it
In a chat, click "+", pick Listar, then ask your question in plain language.
The tools exposed
ChatGPT picks the right tool for your request. You don't have to call them yourself.
find_company_contacts
Finds a company (name and city, SIREN or domain) and returns its profile and decision makers.
enrich_person
Finds a person's phone number and email, from their name, company or LinkedIn profile.
get_result
Fetches the result of a search still running.
get_credit_balance
Shows your organization's remaining credit.
Transparent billing
The connector uses the same credit and prices as the app and the API.
Same prices
Each data point found is debited from your credit, at the usual price. No subscription.
Paid only when found
A search that finds nothing is not billed.
Out of credit?
ChatGPT tells you. Top up on listar.fr: no payment goes through ChatGPT, and no data is delivered unpaid.
You stay in control
The connection shows up in Settings › API keys. Revoking it cuts access at once.
Add Listar to ChatGPT in two minutes
Copy the URL, create the MCP server in ChatGPT, connect your account.
https://api.listar.fr/mcp