What this is
The Zintlr MCP server enables Claude to access Zintlr data and perform prospecting workflows using natural-language requests. You can search for people and companies, retrieve profiles, manage saved searches, and unlock verified contact information without switching between applications.
What MCP enables
- Prospecting: search people and companies using criteria such as job title, location, company size, and industry (will get you better output).
- Profile research: retrieve Zintlr profile information while working in Claude.
- Contact enrichment: unlock verified email addresses and phone numbers when required.
- Saved-search access: retrieve and save searches through the connected Zintlr account.
- Account-aware access: MCP uses the authenticated Zintlr account and its applicable credits.
MCP is available with every Zintlr plan. Standard Zintlr credits apply to contact unlocks. MCP does not consume AI or Personality credits.
Before you begin, you will need
- A Zintlr account (any plan, including free).
- Your Zintlr email, password, and OTP for authentication.
- An AI tool that supports MCP. Claude (web or desktop) is the smoothest, and any other MCP-supported tool works too.
Connect Claude (about 2 minutes)
You need to connect Zintlr MCP as a custom connector and authenticate with Zintlr credentials. Once connected, go and check connectors and confirm the Zintlr tool is listed. The connection is configured once. After authentication, Claude can request permission to use Zintlr tools as needed.
- 1
In Claude, click the + (plus) icon in chat, then Connectors → Add connector → Add custom connector.
- 2
In the Name field, type Zintlr. In the URL field, paste https://mcp.zintlr.com. Leave everything else blank and click Add.
- 3
The Zintlr login page opens. Sign in with your email and password, then enter the OTP. You'll see the message “Connected to Zintlr.”
- 4
That's it — start asking. The first time Claude uses a Zintlr tool, it asks your permission; click Always allow.
Where to find it later: In Zintlr, open your profile menu (top-right corner) → MCP Connection to view the MCP connection link and connection setup.
Using another AI tool
Zintlr MCP can be connected to other MCP-compatible AI clients as a custom connector using the MCP server URL:
https://mcp.zintlr.com
Authentication uses the Zintlr account credentials and OTP. The exact connector or MCP configuration flow depends on the client.
ChatGPT is not currently supported and will require a separate custom setup, which is in development. For now, Claude offers the smoothest integration experience.
Common Workflow
Prospect discovery
Use natural-language criteria to identify relevant people or companies.
- Find heads of marketing at SaaS companies in Bangalore with 51–200 employees.
- Find 20 founders of fintech startups in Mumbai.
Profile research
Retrieve the available Zintlr profile information for a specific prospect.
- Show me the full Zintlr profile for Priya Sharma at Razorpay.
Contact enrichment
Unlock verified contact information when it is required for outreach.
- Unlock the email and phone number for this person.
Result refinement and pagination
- Refine an existing request with additional criteria, such as location, seniority, company size, or phone availability.
- You can request unlock for multiple profiles.
Credits and usage
- Searching and viewing profiles does not consume credits.
- Unlocking a verified email or phone number consumes credits, consistent with the Zintlr application.
- Email and phone unlocks are counted separately. Unlocking both consumes one credit for each contact type.
- MCP uses the authenticated Zintlr account's standard credits. AI and Personality credits are not used.
- If the account has insufficient credits, top up or upgrade the Zintlr plan in the Zintlr application.
- A fair-use daily search limit applies to each account to help prevent scraping and misuse. Normal day-to-day prospecting is not expected to approach this limit.
The tools Claude can use
Tool | What it does | Costs credits? |
|---|---|---|
| Search prospects | Find people & companies by title, location, company size, industry, and other supported criteria, and view their full profiles | No |
| Fetch profile | Checks your own Zintlr account and credit balance (who you are, your team, and how many credits you have) so unlocks run correctly on your account — this looks up you, not the prospect | No |
| Get saved searches | Pull up searches you've saved in Zintlr | No |
| Save search | Save a search to your account | No |
| Unlock contact info | Reveal a verified email address and/or phone number for a prospect. | Yes |
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Permission
Claude requests permission before using a Zintlr tool. Permission can be managed at the tool level.
- Always allow: allow the selected tool to run without a repeated permission prompt.
- Deny: prevent the selected tool from running for that request.
- For Unlock contact info, review the request carefully because the action consumes Zintlr credits.
Managing your connection
- Switch account: disconnect Zintlr in Claude, then reconnect and authenticate with the intended Zintlr account.
- Disconnect: remove the Zintlr connector from Claude's connector settings.
- Credit ownership: credits are always charged to the Zintlr account used for the active connection.
Troubleshooting
What you're seeing | What to do |
|---|---|
| No “Connected” message | The page may refresh after OTP authentication. Wait briefly, then reopen Connectors and verify the connection status. |
| The login page didn't appear. | If you are already signed in to Zintlr, the connection may proceed without showing the login page. |
| The connection is slow or times out | That's temporary on our side. Wait briefly and retry the request. |
| Out of credits | Unlocking uses credits — top up or upgrade in the Zintlr app. |
| It's not working in ChatGPT. | Only Claude and tools that support MCP connection are supported today. Support for ChatGPT is coming. |
| The wrong account's credits were used. | Credits come from the account you set up with; disconnect and reconnect with the right one. |
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Data access and limitations
Claude receives the profile and contact information available through Zintlr's MCP connection. The current MCP implementation does not expose Zintlr AI Insights or Personality data.
Support
For assistance, contact Zintlr Support or open Help & Support from your Zintlr account. If your organisation manages Zintlr centrally, your team administrator can also assist with account and connection setup. ([email protected])