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Plain MCP connector

Connect Plain to Elaichi and Claude, ChatGPT, Cursor, or the Elaichi Agent can search and reply to Plain support threads, assign and label them, look up customers and tenants, and manage help center articles as the signed-in person.

  • How it connects. Connects over OAuth. The credential goes into a vault nobody reads back.

  • One address. https://api.elaichi.ai/mcp, the same for every user.

  • Their own access. An agent never gets more than the person it acts for.

How to connect

How to connect Plain to Claude, ChatGPT or Cursor

Two steps, about a minute.

1

In Elaichi

Connect Plain once

  1. Open Connections, choose Add connection, and pick Plain.

  2. Optionally set Share with to give a team access, then press Connect.

  3. Approve it in Plain. Plain's own window opens. Whoever approves it decides what this connection can reach.

The credential is vaulted. Nobody reads it back, not even the AI.

Add connection

Choose a connector.

plain
Plain
Acquire
Ada
Atomicwork
CM Mobile Service Cloud
Crisp
2

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.

Plain MCP connector for Claude

  1. 1

    Open Customize, then Connectors.

  2. 2

    Press Add.

  3. 3

    Name it, paste the MCP server URL, then Continue.

    https://api.elaichi.ai/mcp
  4. 4

    Sign in and approve.

On Team and Enterprise, an Owner adds it once. Everyone else turns it on for themselves.

Plain MCP connector for ChatGPT

  1. 1

    Open Plugins, then press the + button.

  2. 2

    Name it and paste the endpoint into Server URL.

    https://api.elaichi.ai/mcp
  3. 3

    Leave Authentication on OAuth, then tick the risk acknowledgement.

  4. 4

    Press Create, then sign in and approve.

Works on the web today. The plugin directory lives at chatgpt.com/plugins.

Plain MCP connector for Cursor

  1. 1

    Open ~/.cursor/mcp.json.

  2. 2

    Add the endpoint under mcpServers.

    https://api.elaichi.ai/mcp
  3. 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 Plain to any MCP client

  1. 1

    Add the endpoint as a remote MCP server.

    https://api.elaichi.ai/mcp
  2. 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 Plain through Elaichi

Every one of these runs inside the access the person already has, and lands in the same audit log.

  • Support

    Clear the morning queue faster

    Ask for every unassigned Plain thread that came in overnight, get a one-line summary of each, and assign them to whoever is on shift.

  • Support

    Reply with the customer in view

    Pull up the customer and their tenant before answering, then draft and send the reply in the thread without switching tabs.

  • Customer Success

    Walk into the renewal call prepared

    See every open and recent thread for a tenant so you know what has been going wrong before the account review starts.

  • Engineering

    Find every thread about one bug

    Search Plain for threads that match an incident, label them, and post an update to each one once the fix has shipped.

  • Product

    Hear what customers keep asking for

    Search threads labeled as feature requests from the last quarter and group them by tenant and theme.

  • Documentation

    Keep help center articles current

    Draft a new help center article from a question that keeps coming up, or update an existing one when the answer changes.

Try asking

  • “Summarize every unassigned Plain thread from overnight”
  • “Show open threads for the Acme tenant this week”
  • “Label all billing threads from today as refund request”

Compare

Elaichi vs Zapier MCP vs Composio for Plain

All three can connect Plain to an AI assistant, and all three have admin controls. They differ in where access lives and how you pay.

Elaichi compared with Zapier MCP and Composio for Plain, by what to check
What to check Elaichi Zapier MCP Composio
Where the AI connects One address for the whole organization. https://api.elaichi.ai/mcp A server per member, created at sign-in. An MCP endpoint per team, or an SDK.
Control over Plain tools Allow or restrict single Plain tools, per role or user. App and action restrictions on the account. Role permissions, down to the action.
Record of calls One audit entry per Plain call. A History tab of tool calls. A log of every tool call.
Single sign-on SAML or OIDC, plus SCIM, on Gold. SAML on Enterprise. SAML and OIDC on Enterprise.
Price $15 per user per month. 2 tasks per successful call. Billed per tool call.

Sources: Zapier MCP docs, security, usage; Composio docs, gateway, enterprise, pricing. Checked September 2026.

Longer take: Zapier MCP alternative and when you don't need an MCP gateway.

See it in Elaichi

What connecting Plain gets you

5 screens from the product, each doing one job for your Plain account.

The agent

Ask about Plain threads in plain language.

Get answers from live Plain threads, customers, and tenants, not a stale export.

  • threads
  • customers
  • tenants
  • articles

Ask Elaichi to work across your apps.

Summarize every unassigned Plain thread from overnight

Show open threads for the Acme tenant this week

Label all billing threads from today as refund request

Also runs in Claude, ChatGPT or Cursor

MCP clients

Use Plain from Claude, ChatGPT, or Cursor.

One governed endpoint, signed in with OAuth, no SDK and no shared API key.

ElaichiMCP clients
Claude ChatGPT Cursor

Copy the endpoint

https://api.elaichi.ai/mcp
Client Connected by Status Last used
Claude
E

Emily Carter

• Connected 4 minutes ago
Cursor
M

Megan Brooks

• Connected 2 hours ago
ChatGPT
R

Ryan Hayes

• Connected Yesterday

Toolboxes

Give each team its own Plain toolbox.

Support replies to threads, Product reads labels, Docs manages help center articles.

  • Support
  • Customer Success
  • Engineering
  • Product
ElaichiToolboxes
Name Source template Tools Created

Support toolbox

Plain · threads and replies

Plain starter 18 Mar 4, 2026

Customer Success toolbox

Plain · tenants and open issues

— 9 Mar 2, 2026

Engineering toolbox

Plain · bug reports and labels

— 24 Feb 27, 2026

Product toolbox

Plain · feature requests

Plain starter 6 Feb 19, 2026

Documentation toolbox

Plain · help center articles

— 31 Jan 30, 2026

Account Management toolbox

Plain · customers and tenants

— 12 Jan 22, 2026

Shared connections

Share one Plain connection, hide the credential.

Teammates work through a shared Plain account and never see the token behind it.

  • Support EMEA
  • Support US
  • Customer Success
  • Engineering On-call
ElaichiConnections
Connection Scope Status Access
PL

Plain (Support EMEA)

Connected by Emily Carter

Personal • Active 1 team · 6 members
PL

Plain (Support US)

Connected by Jake Morgan

Organization • Active 3 teams · 24 members
PL

Plain (Customer Success)

Connected by Megan Brooks

Organization • Active 2 teams · 11 members
PL

Plain (Engineering On-call)

Connected by Tyler Reed

Personal • Needs re-auth 1 team · 3 members
PL

Plain (Product)

Connected by Ryan Hayes

Personal • Active Not shared
PL

Plain (Docs)

Connected by Ashley Parker

Personal • Active 2 teams · 9 members

Audit log

Know who replied to every Plain thread.

When, who, what happened, and which thread or article, kept in an append-only log.

  • When
  • Who
  • What happened
  • Type
ElaichiAudit log
When Who What happened Type

2 minutes ago

Mar 6, 2026, 3:10 PM

E

Emily Carter

[email protected]

Restriction Created Access

8 minutes ago

Mar 6, 2026, 3:04 PM

J

Jake Morgan

[email protected]

Restriction Updated Access

14 minutes ago

Mar 6, 2026, 2:58 PM

M

Megan Brooks

[email protected]

Role Assigned Access

20 minutes ago

Mar 6, 2026, 2:52 PM

T

Tyler Reed

[email protected]

Plain Users Updated MCP

26 minutes ago

Mar 6, 2026, 2:46 PM

R

Ryan Hayes

[email protected]

Plain Threads Created MCP

32 minutes ago

Mar 6, 2026, 2:40 PM

A

Ashley Parker

[email protected]

Plain Threads List Toolbox

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 turns Plain threads into a digest.

Threads are fetched, grouped, drafted into a summary, approved by a person, then posted back.

Plain digest

Run 418 · started 2 minutes ago · on behalf of Emily Carter

  1. ✓

    Schedule

    Every weekday at 8:00 AM

    0.2s
  2. ✓

    Fetch threads

    Plain

    1.4s
  3. ✓

    Group by owner

    Transform

    0.1s
  4. ✓

    Draft the digest

    Agent step

    Ran with 4 tools, returned a structured summary

    6.2s
  5. Approve the digest

    Needs approval

    Assigned to Michael Brennan

    Approve
  6. Post the digest

    Plain

    Queued

Collections and dashboards

Plain health numbers, refreshed on a schedule.

Four metrics, 14 days of threads created, and a breakdown by team, no model involved.

Plain health

Refreshed 4 minutes ago · every 15 minutes · from the threads collection

Live

Threads

1,284 ↓ 12%

Customers

96 ↓ 8%

Needs attention

3 ↑ 2

Updated this week

412 ↑ 9%

Threads created

Last 14 days

By team

Share of activity

Support EMEA 34%

Support US 27%

Customer Success 21%

Engineering On-call 18%

FAQ

Frequently asked questions

How do I connect Plain to Claude?

Connect Plain in Elaichi first: pick Plain from the catalog and sign in with your Plain account over OAuth, with no OAuth application to register and no client ID or secret to generate. Then in Claude go to Customize, then Connectors, then Add, and paste https://api.elaichi.ai/mcp. Claude signs you into Elaichi, and from then on it can work with your Plain threads, customers, tenants, and help center articles.

Does Plain work with ChatGPT and Cursor as well as Claude?

Yes. Once Plain 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 Plain once and every client you use picks it up.

What can an AI agent actually do with my Plain data?

It can search your Plain threads, draft and send replies, assign threads to teammates, and add or remove labels. It can look up a customer or tenant to see who is asking and what else is open for them, and it can create and update help center articles. Short, concrete asks work best, such as asking it to assign every unassigned billing thread to Priya rather than writing a long paragraph.

Does connecting Plain give the AI access to every thread in my workspace?

No. The AI works inside the Plain access of the person who signed in, so it sees the threads, customers, tenants, and articles that person can already see in Plain. Elaichi can narrow that further with restrictions, and it never widens it beyond what Plain itself allows.

Can my team share one Plain connection?

Yes. One person connects Plain in Elaichi and shares it with a team, and nobody else ever handles a credential. Each teammate still signs into Elaichi as themselves, so the audit log records who replied to a thread or changed an article, not just that the shared Plain connection did.

Can I stop an agent from deleting or changing things in Plain?

Yes. Restrictions in Elaichi apply per action, so you can allow searching and reading Plain threads while blocking replies, assignments, or edits to help center articles. A restricted action is never shown to the AI client at all, so no prompt, however it is worded, can reach it.

What happens to a Plain connection when someone leaves?

Offboarding the person in Elaichi ends their access to Plain through every client at once. If they had shared their Plain connection with a team, it keeps working for everyone else. If you want it gone entirely, disconnecting Plain once in Elaichi removes it from Claude, ChatGPT, Cursor, and every other client together.

Does the Plain MCP connector work with Gemini, Codex, Claude Code or other MCP clients?

Yes. Plain is reached over the same MCP endpoint every client uses, so anything that speaks MCP can call it — Gemini, Codex, Claude Code, Windsurf, Cline, Zed and OpenCode among them — alongside Claude, ChatGPT, Cursor, and the Elaichi Agent. The tools on offer and the access behind them are identical whichever client asks. Only the setup screen differs.

Is Elaichi an alternative to Zapier MCP for Plain?

Yes. Both let Claude, ChatGPT or Cursor use Plain. Zapier MCP fits a team that already automates in Zapier, since each person signs in and acts as themselves in that account. Elaichi fits when IT wants one address for the whole company, per-tool rules by role, and a record of every Plain call.

How is Elaichi different from Composio for Plain?

Composio gives AI agents tools and sign-in handling across 1,000+ apps, for developers building agents or people using an assistant, billed per tool call. Elaichi gives a company's own people governed access to Plain: one address, restrictions per role or user, and $15 per user per month. Both have role permissions and a log of every call.

Put Plain in front of your team

14 days on Gold, no credit card. Connect it once and pick what each team can call.

Works with
Claude ChatGPT Cursor and any other MCP client, or the Elaichi Agent.
When the trial ends
Nothing is deleted. Connections, roles and the audit log stay where they are, so subscribing picks up exactly where you left off.