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MCP server · Developer Tools

plain

by · github.com/tellahq/plain-mcp

MCP server for Plain.com support platform

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Scored 4 months ago · breakdown

About plain

plain is an MCP server published by git+tellahq in the Developer Tools category: mCP server for Plain.com support platform. It has been installed 0 times through Conduid.

Install

Install
npx @tellahq/plain-mcp
Claude Code
claude mcp add plain-mcp -- npx -y @tellahq/plain-mcp
npx
npx -y @tellahq/plain-mcp

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

  • ·README presentNot checked yet.
  • ·License declaredNot checked yet.
  • ·Tests presentNot checked yet.
  • ·Dependencies pinnedNot checked yet.
  • ·No dynamic code executionNot checked yet.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

README

Plain.com MCP Server

An MCP server providing comprehensive access to the Plain.com API from Claude, with 77 tools covering support threads, customers, help centers, automation, and more.

Setup

  1. Install dependencies:
bun install

  1. Get your Plain.com API key from Settings → API Keys with full API permissions.

  2. Add to your Claude Code config (~/.claude.json):

{
  "mcpServers": {
    "plain": {
      "command": "bun",
      "args": ["run", "/path/to/plain-mcp/src/index.ts"],
      "env": {
        "PLAIN_API_KEY": "your-api-key"
      }
    }
  }
}
  1. Restart Claude Code to load the MCP server.

Available Tools (77)

Help Centers

Tool Description
list_help_centers List all help centers in the workspace
get_help_center Get details of a specific help center
create_help_center Create a new help center
update_help_center Update an existing help center
delete_help_center Delete a help center
update_help_center_custom_domain Set a custom domain for a help center
verify_help_center_custom_domain Verify DNS ownership of a custom domain

Help Center Articles

Tool Description
list_help_center_articles List articles in a help center
get_help_center_article Get a specific help center article by ID
get_help_center_article_by_slug Get a help center article by its URL slug
upsert_help_center_article Create or update a help center article
delete_help_center_article Delete a help center article
generate_help_center_article Auto-generate an article from a thread using AI

Help Center Article Groups

Tool Description
list_help_center_article_groups List article groups (categories) in a help center
get_help_center_article_group Get a specific article group by ID
create_help_center_article_group Create a new article group (category)
update_help_center_article_group Update an article group
delete_help_center_article_group Delete an article group

Help Center Index

Tool Description
get_help_center_index Get the navigation index/structure of a help center
update_help_center_index Update the navigation index/structure

Knowledge Sources

Tool Description
create_knowledge_source Create a knowledge source for AI to reference
delete_knowledge_source Delete a knowledge source

Customers

Tool Description
upsert_customer Create or update a customer
delete_customer Delete a customer
get_customer Get detailed customer information by ID
search_customers Search for customers by email
mark_customer_as_spam Mark a customer as spam
unmark_customer_as_spam Remove spam marking from a customer
create_customer_event Create a custom event on a customer timeline

Customer Groups

Tool Description
list_customer_groups List all customer groups
create_customer_group Create a new customer group
add_customer_to_groups Add a customer to one or more groups
remove_customer_from_groups Remove a customer from one or more groups

Threads

Tool Description
list_threads List support threads with optional status filter
get_thread Get detailed thread info including conversation timeline
get_queue_stats Get a quick overview of support queue counts
create_thread Create a new support thread for a customer
update_thread_title Update the title of a thread
delete_thread Permanently delete a thread
assign_thread Assign a thread to a user
unassign_thread Remove assignment from a thread
change_thread_priority Change the priority of a thread
create_thread_event Create a custom event on a thread timeline

Thread Actions

Tool Description
reply_to_thread Reply to a thread (sent via original channel)
mark_thread_done Mark a thread as done/resolved
mark_thread_todo Mark a thread as todo (re-open it)
snooze_thread Snooze a thread for a specified duration

Thread Labels

Tool Description
list_label_types List all available label types
create_label_type Create a new label type
add_labels_to_thread Add labels to a thread
remove_labels_from_thread Remove labels from a thread

Thread Fields

Tool Description
list_thread_field_schemas List all custom thread field schemas
upsert_thread_field Set a custom field value on a thread

Notes

Tool Description
create_note Create an internal note on a thread (not visible to customer)
delete_note Delete an internal note from a thread

Communication

Tool Description
send_email Send a new email to a customer (starts a new thread)
send_chat Send a chat message to a customer

Companies

Tool Description
upsert_company Create or update a company
delete_company Delete a company

Tenants

Tool Description
upsert_tenant Create or update a tenant
delete_tenant Delete a tenant

Snippets

Tool Description
list_snippets List all snippets (canned responses)
create_snippet Create a new snippet
update_snippet Update an existing snippet
delete_snippet Delete a snippet

Webhooks

Tool Description
list_webhooks List all webhook targets
create_webhook Create a new webhook target
update_webhook Update a webhook target
delete_webhook Delete a webhook target

Autoresponders

Tool Description
list_autoresponders List all autoresponders
create_autoresponder Create a new autoresponder
delete_autoresponder Delete an autoresponder

Tiers

Tool Description
list_tiers List all support tiers
create_tier Create a new support tier
delete_tier Delete a support tier

Workspace & Users

Tool Description
get_workspace Get current workspace information
list_users List workspace users

Example Usage

Ask Claude:

  • "Show me all todo threads"
  • "Get the details of thread th_xxx"
  • "How many threads need attention?"
  • "Find customer john@example.com"
  • "Reply to thread th_xxx saying we're looking into it"
  • "Mark thread th_xxx as done"
  • "Snooze thread th_xxx for 24 hours"
  • "Add a note to thread th_xxx that this is a billing issue"
  • "Create a new help center article about password resets"
  • "List all snippets"
  • "Assign thread th_xxx to user u_xxx"
  • "Generate a help center article from thread th_xxx"

README mirrored from the source repository 4 months ago. The original is authoritative.

Questions

About plain

How do I install plain?

Run npx @tellahq/plain-mcp, then add the server to your MCP client's configuration. Conduid has recorded 0 installs, so the command is known to work with current clients.

Is plain safe to use with an AI agent?

Its trust score is 39 out of 100 (low). It passes 0 of 1 static security checks; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is plain still maintained?

Conduid hasn't recorded a commit date for this repository yet. Check the repository directly for recent activity.