Marketing Automation
Lob MCP connector
The Lob connector lets Claude, ChatGPT, Cursor, and the Elaichi Agent send postcards, letters, and self mailers, manage mailing addresses, and check bank accounts and billing groups in Lob, with every action running under the signed-in person's own access and recorded in an audit log.
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How it connects. Connects with an API key. The credential goes into a vault nobody reads back.
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One address. https://api.elaichi.ai/mcp, the same for every user.
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Their own access. An agent never gets more than the person it acts for.
How to connect
How to connect Lob to Claude, ChatGPT or Cursor
Two steps, about a minute.
In Elaichi
Connect Lob once
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Open Connections, choose Add connection, and pick Lob.
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Optionally set Share with to give a team access, then press Connect.
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Paste a Lob API key. One person generates a token in Lob and pastes it once. Everyone else works through Share with, and never sees it.
The credential is vaulted. Nobody reads it back, not even the AI.
Add connection
Choose a connector.
In your AI client
Point it at one endpoint
Everyone in the organization uses the same address, and each person only ever reaches what their own account allows.
Connect Lob to Claude
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1
Open Customize, then Connectors.
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2
Press Add.
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3
Name it, paste the MCP server URL, then Continue.
https://api.elaichi.ai/mcp -
4
Sign in and approve.
On Team and Enterprise, an Owner adds it once. Everyone else turns it on for themselves.
Connect Lob to ChatGPT
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1
Open Plugins, then press the + button.
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2
Name it and paste the endpoint into Server URL.
https://api.elaichi.ai/mcp -
3
Leave Authentication on OAuth, then tick the risk acknowledgement.
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4
Press Create, then sign in and approve.
Works on the web today. The plugin directory lives at chatgpt.com/plugins.
Connect Lob to Cursor
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1
Open
~/.cursor/mcp.json. -
2
Add the endpoint under
mcpServers.https://api.elaichi.ai/mcp -
3
Reload Cursor, then sign in and approve.
~/.cursor/mcp.json
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
Set up per machine, so repeat it on each computer you work from.
Connect Lob to any MCP client
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1
Add the endpoint as a remote MCP server.
https://api.elaichi.ai/mcp -
2
Sign in and approve.
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
The Elaichi Agent already has these tools, with nothing to set up.
Use cases
What teams do with Lob through Elaichi
Every one of these runs inside the access the person already has, and lands in the same audit log.
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Marketing
Send a postcard campaign from a chat
Describe the postcard, name the recipients, and have the agent create each Lob postcard against a saved address. Ask for the list afterwards to confirm what went out.
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Sales
Mail a follow-up letter after a call
Once a prospect meeting wraps up, dictate the letter and have it created in Lob to the contact's address on file, so a physical follow-up lands within days.
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Operations
Keep the address book clean
List the addresses stored in Lob, spot duplicates or outdated entries, and delete the ones that should not receive mail again.
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Finance
Verify bank accounts before checks go out
Run a verification on a Lob bank account, look up its details, or remove one that is no longer in use, all without opening the Lob dashboard.
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Finance
Sort mail spend into billing groups
Pull up a Lob billing group, rename it or change its description, and see which groups exist so mail costs land against the right cost center.
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Support
Check whether a letter was created
When a customer asks about a notice they were expecting, look up the Lob letter by its ID or scan recent letters to confirm it exists and when it was created.
Try asking
- “Show all postcards sent to our California mailing list this week.”
- “List every letter still pending delivery for the Q3 campaign.”
- “Which addresses bounced on our last self mailer batch.”
AI tools
Lob tools for your AI agents
104 tools are ready to call through Elaichi's MCP endpoint the moment you connect Lob, governed by the same roles, restrictions, and audit log as everything else in Elaichi.
No tools match your search.
See it in Elaichi
What connecting Lob gets you
6 screens from the product, each doing one job for your Lob account.
The agent
Ask Lob questions, get real answers.
Type a plain question and get answers pulled from live postcards, letters and addresses.
- postcards
- letters
- self mailers
- addresses
Ask Elaichi to work across your apps.
Show all postcards sent to our California mailing list this week.
List every letter still pending delivery for the Q3 campaign.
Which addresses bounced on our last self mailer batch.
Also runs in Claude, ChatGPT or Cursor
MCP clients
One endpoint, every client, no API key.
Claude, ChatGPT and Cursor all reach Lob through a single governed org endpoint.
Copy the endpoint
Tool catalog
104 Lob tools, zero custom code.
Every Lob postcard, letter, self mailer and address method cataloged and ready to use.
- Get single Lob postcard by ID
- Delete a Lob postcard by ID
- List all Lob postcards
- Create a Lob postcard
Toolboxes
Every team gets its own Lob toolbox.
Marketing, ops and support each work from a toolbox scoped to their own Lob needs.
- Marketing
- Sales
- Operations
- Customer success
Shared connections
Delegated Lob access, no shared credentials.
See who connected each Lob account and how many teams and members share it.
- Marketing US
- Sales EMEA
- Operations
- Customer Success
Audit log
Every Lob call, logged and attributable.
See who did what in Lob, when, and on which resource.
- When
- Who
- What happened
- Type
Launching soon
From answering questions to doing the work
A person no longer has to ask. A trigger starts the work, inside the same permissions and the same audit log as everything else. Automations and live dashboards are launching soon, on the Black plan.
Automations
A schedule fires, Lob mail goes out.
A trigger fetches Lob records, drafts a digest, waits for approval, then posts it back.
Lob digest
Run 418 · started 2 minutes ago · on behalf of Emma Laurent
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✓
Schedule
Every weekday at 08:00
0.2s -
✓
Fetch postcards
Lob
1.4s -
✓
Group by owner
Transform
0.1s -
✓
Draft the digest
Agent step
Ran with 4 tools, returned a structured summary
6.2s -
Approve the digest
Needs approval
Assigned to Michael Brennan
Approve Deny -
Post the digest
Lob
Queued
Collections and dashboards
Lob's numbers, refreshed without a prompt.
Four metrics and a 14 day chart of records created, broken down by team automatically.
Lob health
Refreshed 4 minutes ago · every 15 minutes · from the postcards collection
Postcards
1,284 ↓ 12%
Letters
96 ↓ 8%
Needs attention
3 ↑ 2
Updated this week
412 ↑ 9%
Postcards created
Last 14 days
By team
Share of activity
Marketing US 34%
Sales EMEA 27%
Operations 21%
Customer Success 18%
FAQ
Frequently asked questions
How do I connect Lob to Claude?
Connect Lob in Elaichi first, which asks for your Lob API key and nothing else. There is no OAuth application to register and no client ID or secret to generate. Then open Claude, go to Customize, then Connectors, then Add, and paste https://api.elaichi.ai/mcp as the endpoint. Sign in as yourself and Lob is ready to use.
Does Lob work with ChatGPT and Cursor as well as Claude?
Yes. Once Lob is connected in Elaichi, the same endpoint, https://api.elaichi.ai/mcp, works in Claude, ChatGPT, Cursor, any other MCP client, and the Elaichi Agent. You connect Lob once and every client picks it up.
What can an AI agent actually do with my Lob data?
With Lob connected, an agent can create postcards, letters, and self mailers, look one up by its ID, list recent ones, or delete one. It can also add and remove mailing addresses, verify and manage bank accounts, and view or update billing groups. Because Lob has a large set of actions, short concrete asks such as "list this week's postcards" work better than long paragraphs.
Does connecting Lob give the AI access to my whole account?
No. Everything an agent does in Lob runs under the access of the person who signed in, so it can only reach what that person's Lob API key already allows. Elaichi can narrow that further, for example to read-only or to postcards only, and it can never widen it beyond what the key permits.
Can I stop an agent from deleting or changing things in Lob?
Yes. Restrictions in Elaichi work per action, so you can block deleting Lob postcards, letters, self mailers, addresses, or bank accounts while leaving lookups and lists available. A blocked action is never advertised to Claude, ChatGPT, or any other client, so no prompt can reach it.
What happens to a Lob connection when someone leaves?
Offboarding a person in Elaichi ends their access to Lob at once, across every client they used. If the Lob connection was shared with a team, it keeps working for everyone else. Disconnecting Lob once in Elaichi removes it from Claude, ChatGPT, Cursor, and every other connected client at the same time.
Put Lob in front of your team
Fourteen days on Gold, no credit card. Connect it once and pick what each team can call.