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Connect Poplar to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Turn your AI agent into a physical mail coordinator.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 11 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 11 available through Poplar.

  1. 01

    Trigger physical mailer

    This capability sends a physical postcard or letter to a recipient using a specific campaign ID and address details.

  2. 02

    Add to suppression list

    This capability adds a recipient to your global Do Not Mail list to ensure they don't receive future mailings.

  3. 03

    Get API profile

    This capability retrieves details about your authenticated Poplar account.

  4. 04

    List audiences

    This capability pulls a list of all mailing audiences currently in your account.

Capability set02 / 03

05-08

4 capabilities in this set.

Part of 11 available through Poplar.

  1. 05

    List marketing campaigns

    This capability shows all your active direct mail campaigns.

  2. 06

    List mail creatives

    This capability lists all the mailer designs and creatives you have uploaded.

  3. 07

    Standardize us address

    This capability cleans and formats US mailing addresses into valid USPS standards.

  4. 08

    Add to audience

    This capability adds a new recipient to a specific audience list.

Capability set03 / 03

09-11

3 capabilities in this set.

Part of 11 available through Poplar.

  1. 09

    Get mailer status

    This capability checks the real-time production and delivery status of a mailer.

  2. 10

    List billing history

    This capability retrieves your account's billing and invoice data.

  3. 11

    Report transaction

    This capability submits customer order data to Poplar to track campaign attribution and ROI.

Real work

What teams actually run

01

Abandoned Cart Recovery

Trigger a physical postcard to a customer who left a high-value item in their digital cart.

02

Lead Nurturing

Send personalized letters to new leads once they meet specific criteria in your database.

03

Customer Win-back

Automate mailers to customers showing signs of churn to encourage them to return.

04

Campaign Attribution

Link physical mail efforts to actual sales by reporting transactions back to the platform.

Automate a task

Put Poplar to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Poplar works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Poplar to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

969ms average. Fast in production.

Poplar is checked daily against the live service.

Daily averagePeak 1218ms
Oct 3Today
Fastest day
725ms
Slowest day
1218ms
14-day trend
Slowing+31%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 11 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Poplar, so you can see the experience inside your AI.

It does not authenticate your account with Poplar. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Poplar Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_wjdR2dT38sZaHT3kHkl8b02xmhEnARQ2SQFjEIIE/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Poplar capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "poplar-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_wjdR2dT38sZaHT3kHkl8b02xmhEnARQ2SQFjEIIE/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Poplar in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Poplar owners hand off.

This MCP is built for marketing professionals who need to bridge the gap between digital triggers and physical mail.

  • 01

    Growth Marketers

    They use the agent to automate physical follow-ups for high-value leads.

  • 02

    Retention Managers

    They trigger win-back postcards for churning customers directly from CRM data.

  • 03

    E-commerce Owners

    They report transactions back to Poplar to measure direct mail effectiveness.

FAQ

Questions Poplar owners ask.

  • 01

    How do I connect my Poplar account?

    You subscribe to the MCP on Vinkius and then provide your Poplar Access Token, which you can find in your Poplar API settings.

  • 02

    Which AI clients can I use with this MCP?

    You can use any MCP-compatible client, including Claude, Cursor, and Windsurf.

  • 03

    Can I verify if an address is deliverable?

    Yes, the MCP includes a capability to standardize and verify US mailing addresses to ensure they meet USPS standards.

  • 04

    How do I know if my mail has been delivered?

    You can ask your agent to check the status of a specific mailer to see its real-time production and delivery progress.

  • 05

    Can I prevent certain people from receiving mail?

    Yes, you can add recipients to a global suppression list to manage opt-outs and maintain compliance.

  • 06

    How do I get my Poplar Access Token?

    Log in to your Poplar account and navigate to the API Settings or Developer section. You will find your Access Token there. Use a Test Token for development and a Production Token for live mailings.

  • 07

    Can I standardize non-US addresses?

    No, Poplar's address standardization service is specifically designed for US addresses only. For international mailing, ensure your addresses are pre-formatted correctly.

  • 08

    How can I check if a mailer has been delivered?

    Use the get_mailer_status capability with the unique mailer ID. It will return the current status, including production phases and the final USPS delivery confirmation when available.

  • 09

    Is the integration secure for customer addresses?

    Absolutely. The integration uses official Poplar Bearer tokens over HTTPS. Your credentials and customer data are encrypted and stored securely within the Vinkius Cloud infrastructure.

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