Verified B2B contact data, right inside Claude
Ask Claude to find a company's manager, their email and their phone number. Listar does the research, Claude puts it to work in your prospecting.
https://api.listar.fr/mcpPaste this URL in Claude: Settings › Connectors › Add custom connector.
What Claude can do with Listar
Listar's tools work in plain language, in a chat as well as in a task that runs on its own.
Automated prospecting
A scheduled task finds new businesses every day, and Listar adds the decision makers and their contact details.
- Legal directors from the official register
- The manager's phone and email
- CSV or Google Sheets export through your other connectors
Enrich a list
Paste a list of contacts or companies in the chat: Claude enriches them one by one.
- Verified work emails
- Phone numbers flagged as professional or personal
- 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: registry number, address, activity
- Decision makers sorted by role
- LinkedIn profile when known
Example instruction
For each business found in Lyon, call find_company_contacts with its name and city, then enrich_person on the manager. Add their name, title, phone and email to the CSV.
Setup on claude.ai
Two minutes, once. No key to copy.
Add the connector
In Claude, open Settings › Connectors › Add custom connector. Name it Listar and paste the connector URL.
Connect your Listar account
Click "Connect". Sign in to Listar, or create your account in one click: new accounts get free credit.
Allow access
Check the organization and click "Allow". You land back in Claude with the connector active.
Use it
Enable Listar in a chat or a project. For a scheduled task, set the Listar tools to "Always allow" so it runs without you.
Claude Code, Cursor and other MCP clients
Clients that accept a header use an API key, created in Settings › API keys:
claude mcp add --transport http listar https://api.listar.fr/mcp \ --header "Authorization: Bearer sk_live_..."
On claude.ai the header is not needed: the connection goes through your Listar account.
The tools
Claude picks the right tool for your request. You never have to call them yourself.
find_company_contacts
Finds a company (name and city, registry number or domain) and returns its profile and decision makers.
enrich_person
Finds a person's phone and email from their name, company or LinkedIn profile.
get_result
Fetches the result of a search still running.
get_credit_balance
Tells the credit left in your organization.
get_top_up_link
Gives a top-up link to open. Payment stays in your hands.
Transparent billing
The connector uses the same credit and prices as the app and the API.
Same prices
Every 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?
Claude tells you and gives you a top-up link. No data is delivered unpaid.
You stay in control
The connection is listed in Settings › API keys. Revoking it cuts access at once.
Add Listar to Claude in two minutes
Copy the URL, paste it in Claude's connectors, connect your account.
https://api.listar.fr/mcp