Click2Mail MCP server

Read Click2Mail credit, jobs, costs and tracking; upload documents, create and submit mail jobs. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect Click2MailFree 50 calls/mo

What can I ask?

Turn on the Click2Mail connector, then ask in plain words. The AI picks the tools.

What is my Click2Mail credit balance?
Show the tracking for job 195795.
Which of my mailing jobs from March are still in editing status?
Upload this PDF from a link, build a postcard job for my address list and tell me the cost before I send it.

What you can do with Click2Mail in Claude and ChatGPT

For businesses that send printed direct mail with Click2Mail.

Check your credit and estimate the cost of a mailing

The AI reads the account credit, the mail products and valid options, and estimates the cost of a mailing from its print options and quantity. Nothing is created or charged.

Find a mailing job and follow its USPS tracking

The AI lists your projects and the jobs of one project, reads the status of a job, and reads the USPS tracking per mail piece.

Check and correct US addresses before mailing

The AI validates and standardizes up to 100 US postal addresses with USPS correction. Nothing is saved or sent.

Upload a document and an address list

The AI has Click2Mail fetch a PDF from a public link and uploads a recipient list of up to 500 addresses. It checks that the list is ready. Nothing is mailed.

Changes data

Create a draft mailing job and request a proof

The AI creates a draft job from an uploaded document and address list, using the valid print options, and asks for a proof (preview PDF). Nothing is mailed or charged.

Changes data

Submit a draft job for printing and mailing

The AI reads the exact cost and your credit, and submits the draft only after your explicit OK. Submitting charges the account and mails to every recipient.

Changes data

How do I connect Click2Mail?

Before you connect

The login page asks for your Click2Mail username and Click2Mail password.

Use the login of your Business Click2Mail account (production, not the stage site) and switch on API access first: Profile & Preferences → API access. The API accepts only the account's username and password, so a dedicated account makes its activity easy to track. Submitting a job spends postage from your account, and this server only does that when you explicitly confirm. Your login is used only to call the Click2Mail API on your behalf; it is never shown to anyone.

Claude claude.ai · Desktop

Open Customize → Connectors, then click + Add → Add custom connector.
Enter the name Click2Mail and this URL, then click Add:
https://click2mail.usefulapi.io/mcp
Claude opens the login page: enter your Click2Mail username and Click2Mail password.
In a chat, click + → Connectors and turn on Click2Mail.

Team and Enterprise: an Owner adds the connector for the organization first.

ChatGPT chatgpt.com

Open Plugins, click +, then Add custom MCP server.
Enter the name Click2Mail and this URL, choose OAuth as the authentication, confirm the warning and create it:
https://click2mail.usefulapi.io/mcp
ChatGPT opens the login page: enter your Click2Mail username and Click2Mail password.
In Plugins, install Click2Mail, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http click2mail https://click2mail.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "click2mail": {
      "url": "https://click2mail.usefulapi.io/mcp"
    }
  }
}

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "click2mail": {
      "type": "http",
      "url": "https://click2mail.usefulapi.io/mcp"
    }
  }
}

Codex

Run these commands. The second one opens the login page:

codex mcp add click2mail --url https://click2mail.usefulapi.io/mcp

codex mcp login click2mail

Other clients

Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.

https://click2mail.usefulapi.io/mcp

Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Click2Mail username and Click2Mail password. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Proper user	$9/mo · $90/yr	10,000 tool calls / month
Pro+per user	$39/mo · $390/yr	100,000 tool calls / month

Each paid plan covers this Click2Mail server only. Ask your AI to run click2mail_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with click2mail_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with click2mail_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

Tools 26

Show all 26 tools (the AI picks them for you)

Read only · 15

Get account creditclick2mail_get_credit
The prepaid credit balance of the Click2Mail account (`balance`) and whether the balance may go negative (`allowNegative`). Check it before submitting a job paid with User Credit.
List saved account addressesclick2mail_list_return_addresses
The addresses of one type saved on the account (return addresses, billing, business reply, courtesy reply, EDDM mailer addresses) with their ids; use an id as `return_address_id` when creating a job.
Get product optionsclick2mail_get_product_options
The mail products and valid option combinations (document class, layout, production time, envelope, color, paper, print option, mail class) for the account. Use the exact strings from this reply in click2mail_create_job and click2mail_estimate_cost.
Estimate mailing costclick2mail_estimate_cost
Estimate the cost of a mailing from its print options and quantity without creating anything (nothing is charged). Use the exact option strings from click2mail_get_product_options.
List documentsclick2mail_list_documents
List the documents uploaded to the account (id, name, class, pages), most recent first. Use a document id when creating a job.
Get address list statusclick2mail_get_address_list
Status of an uploaded address list: processing state (3 = CASS-standardized and ready for a job), name and counts.
Get address list detailsclick2mail_get_address_list_info
Details of an address list: its addresses with the standardization result of each. Click2Mail returns 10 addresses by default: page with limit and offset.
Check and correct addressesclick2mail_check_addresses
Validate and standardize up to 100 US postal addresses (USPS/CASS correction) before mailing. Read-only: nothing is saved or sent.
List projectsclick2mail_list_projects
List the account's projects (jobs are grouped by project; jobs without one are grouped by month, e.g. "March 2022"), most recently updated first. Use a project name with click2mail_list_project_jobs.
List jobs in a projectclick2mail_list_project_jobs
List the mailing jobs of one project (id, status, description). This is how to see the account's jobs: pick a project from click2mail_list_projects.
List jobs by app signatureclick2mail_list_jobs_by_app_signature
List the jobs that were created with a given `appSignature` (the label an integration puts on its jobs; click2mail_create_job sets it).
Get job statusclick2mail_get_job_status
Status of a job: numeric `status` and its `description` (for example 9 = Editing) plus the status URL.
Get job detailsclick2mail_get_job_info
Full details of a job: print options, document, address list, dates, cost and payment.
Get job trackingclick2mail_get_job_tracking
USPS tracking for a submitted job: per mail piece barcode, address, status, date and location. Tracking updates once a day, so one call per day is enough; nothing is tracked on staging.
Get job costclick2mail_get_job_cost
The exact cost of a created job (postage, printing, fees) for a payment type. Read it before click2mail_submit_job.

Changes data · 7

Create address listclick2mail_create_address_list
WRITE: upload a recipient address list (up to 500 addresses) to the account. The list is standardized (CASS) by Click2Mail; poll click2mail_get_address_list until status 3, then use its id in click2mail_create_job. Creates data only; nothing is mailed or charged.
Upload document from URLclick2mail_upload_document_from_url
WRITE: have Click2Mail fetch a PDF (or other supported file) from a public http(s) URL and store it as a document on the account. Returns the document id for click2mail_create_job. Creates data only; nothing is mailed or charged.
Create job (draft)click2mail_create_job
WRITE: create a mailing job from an uploaded document and an address list. The job stays a draft (status Editing): nothing is printed, mailed or charged until click2mail_submit_job. Use the exact option strings from click2mail_get_product_options. Returns the job id.
Request job proofclick2mail_request_job_proof
WRITE: ask Click2Mail to render a proof (preview PDF) of a draft job. Free; nothing is mailed or charged. The reply names the proof; it takes a moment to render.
Submit job (spends money)click2mail_submit_job
WRITE, SPENDS MONEY, NOT REVERSIBLE: submit a draft job for printing and USPS mailing. This charges postage and printing to the account (User Credit = prepaid balance, or Invoice) and the physical mail is sent to every recipient. Before calling: read click2mail_get_job_cost and click2mail_get_credit, and get the user's explicit go-ahead for this job and amount. `confirm` must be true. Cancellation is only possible for Invoice jobs, before processing starts.
Cancel submitted jobclick2mail_cancel_job
WRITE: cancel a SUBMITTED job. The vendor documents this only for jobs paid by invoice and only before processing for mailing has started; otherwise it fails. The mailing is stopped for good, so get the user's explicit go-ahead first; `confirm` must be true. To remove a draft use click2mail_delete_job.
Delete draft jobclick2mail_delete_job
WRITE: delete a job that has not been submitted (status Editing or PendingProofAcceptence). Submitted jobs cannot be deleted; use click2mail_cancel_job.

Your usefulapi plan · 4

Usage status (free-tier meter)click2mail_usage_status
Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
Request a missing featureclick2mail_request_feature
Tell usefulapi that the user needs something the Click2Mail tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
Upgrade to Pro or Pro+click2mail_upgrade
Get a paid plan for Click2Mail (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter.
Cancel the Pro subscriptionclick2mail_cancel_subscription
Cancel the caller's Click2Mail Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run click2mail_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with Click2Mail in Claude or ChatGPT?

Check your credit and estimate the cost of a mailing. Find a mailing job and follow its USPS tracking. Check and correct US addresses before mailing. Upload a document and an address list. Create a draft mailing job and request a proof. Submit a draft job for printing and mailing. See what you can do for the details.

Is this an official Click2Mail product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by Click2Mail. The server calls the Click2Mail API with your own Click2Mail access, so it sees only the data that your account can see.

Can I connect Click2Mail to Claude or ChatGPT?

Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.

What do I need to connect?

The login page asks for your Click2Mail username and Click2Mail password. See Before you connect for where to find them.

Do I put my Click2Mail key or an Authorization header in the client config?

No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Click2Mail username and Click2Mail password. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

How do you keep my Click2Mail credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Click2Mail API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Click2Mail.

Can the AI change my Click2Mail data?

Yes, if you approve it. 7 of the 22 Click2Mail tools can create or change data. The other 15 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.

What does it cost?

The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Click2Mail server only. Cancel any time: your paid plan then runs to the end of the paid period. Run click2mail_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run click2mail_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run click2mail_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a Click2Mail tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with click2mail_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.

Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.

Click2Mail MCP server

What can I ask?

What you can do with Click2Mail in Claude and ChatGPT

Check your credit and estimate the cost of a mailing

Find a mailing job and follow its USPS tracking

Check and correct US addresses before mailing

Upload a document and an address list

Create a draft mailing job and request a proof

Submit a draft job for printing and mailing

How do I connect Click2Mail?

Before you connect

Claude claude.ai · Desktop

ChatGPT chatgpt.com

Claude Code

Cursor

VS Code

Codex

Other clients

Pricing

Tools 26

Read only · 15

Changes data · 7

Your usefulapi plan · 4

FAQ

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