Claude, ChatGPT and Claude Code

Connect Claude or ChatGPT to Pagestro

Let your own assistant read your documents and, when you allow it, send invoices and signature requests for you.

Server URL

https://pagestro.com/api/mcp

Paste it into your assistant, then sign in to Pagestro and click Allow. Needs the Pro or Business plan.

What the connector does

Pagestro has an MCP server: a standard way for assistants to use an app’s features. Once connected, your assistant can look things up in your account and act on it, using the tools listed below.

Pagestro uses no AI
The assistant is your own. It is run by its own company (Anthropic for Claude, OpenAI for ChatGPT) under that company’s terms and privacy policy, not by Pagestro.
You sign in and approve
You connect with your Pagestro sign-in and choose what it may do. Your password is never shared with the assistant.
Pro or Business plan
Each tool call counts as one API call toward your plan’s monthly allowance (see Pricing), with at most 120 calls a minute per account.

Set it up

Use the server URL https://pagestro.com/api/mcp everywhere.

Claude

claude.ai, Claude Desktop and the mobile apps

1Open Customize › Connectors and click Add custom connector.
2Name it Pagestro, paste the server URL and click Add.
3Click Connect, sign in to Pagestro and click Allow.

Team and Enterprise

An Owner adds the connector once in Organization settings › Connectors. Each member then clicks Connect and signs in with their own Pagestro account.

Don’t add Pagestro with an API key in a request header for your organization. Every member would then use the Owner’s Pagestro account.

Once Pagestro is listed in Claude’s connector directory, you’ll be able to find it there instead of pasting the URL.

ChatGPT

chatgpt.com and the desktop app

1Open Settings › Security and login and turn on Developer mode.
2Go to Plugins, click +, then Create MCP App.
3Name it Pagestro, paste the server URL and choose OAuth for authentication.
4Create it, sign in to Pagestro and click Allow.

Developer mode depends on your ChatGPT plan, and in a workspace on your admin. Once Pagestro is listed in ChatGPT’s plugin directory, steps 1 to 3 go away: you’ll pick Pagestro from Plugins.

Claude Code

Run this once in a terminal:

claude mcp add --transport http --scope user pagestro https://pagestro.com/api/mcp

Then type /mcp in Claude Code, choose pagestro and sign in in the browser window that opens. --scope user makes it available in all your projects.

Scripts and other apps (API key)

For scripts, and for apps that can’t do the Pagestro sign-in: create a key in Account › API & MCP and send it as Authorization: Bearer pgs_…. To test it:

curl -s https://pagestro.com/api/mcp -H "Authorization: Bearer $PAGESTRO_KEY" -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-11-25","capabilities":{},"clientInfo":{"name":"curl","version":"1"}}}'

curl -s https://pagestro.com/api/mcp -H "Authorization: Bearer $PAGESTRO_KEY" -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" -H "MCP-Protocol-Version: 2025-11-25" -d '{"jsonrpc":"2.0","id":2,"method":"tools/list"}'

The 17 tools

This is everything an assistant can do in your account. Tools marked “Emails people” send real emails, so Pagestro tells the assistant to confirm the recipients with you first.

Account and documents

Get plan and usage get_account
Reads
Your plan, this month’s usage and your limits.
List saved documents list_documents
Reads
Your saved contracts, invoices and email designs, newest first.
Read a saved document get_document
Reads
One saved document. For a contract, also the signer roles it needs.

Invoices

List sent invoices list_invoices
Reads
Sent invoices with their status, amount and due date.
Send an invoice send_invoice
Emails people
Emails a saved invoice to your client with a private link, and turns on automatic overdue reminders. Counts toward your monthly invoice limit.
Mark an invoice paid mark_invoice_paid
Makes changes
Records that you were paid and stops the reminders. Pagestro doesn’t take the payment itself.

Signatures

List signature requests list_signature_requests
Reads
Contracts sent for signature, with their status and how many people have signed.
Get a signature request get_signature_request
Reads
The signers, each one’s status, and the audit trail.
Request signatures request_signatures
Emails people
Sends a saved contract for e-signature to up to 10 people. Each one gets a private signing link by email.

Email designs

List email designs list_email_designs
Reads
Your saved email designs, with a link to open each one.
Read an email design get_email_design
Reads
The subject, preview text and content of one design. Very long emails are shortened; open them in Pagestro.
Create an email design create_email_design
Makes changes
Saves a new design and gives you a link to edit it in the email builder. Nothing is sent.
Update an email design update_email_design
Makes changes
Changes a design’s name, subject or preview text, or replaces its content. New content replaces edits you made in the builder.

QR codes

List QR codes and links list_qr_codes
Reads
Your dynamic QR codes with their type, short link, destination, status and scans.
Create a QR code create_qr_code
Makes changes
A new dynamic QR code that opens a web address you can change later.
Change a QR code update_qr_code
Makes changes
Changes where a web-address QR code points (printed codes follow the new address), or pauses and resumes any code.
Get QR scan stats get_qr_code_stats
Reads
Scans, unique visitors, recent days, devices and countries for one code.

Security and your data

Sign-in uses OAuth: the assistant gets its own access, never your password. Access lasts an hour and renews itself while you use it; a connection unused for 90 days ends. Read more in our privacy policy and on the Security page.

What it can see
Your plan and usage, saved contracts, invoices and email designs, signature requests with their signers and audit trail, and your QR codes with their scan stats. What it reads goes to the company that runs your assistant and is handled under its terms and privacy policy.
What it can’t do
It can’t delete anything, change your password, settings or billing, or open files in the PDF and image tools: those never leave your browser.
You confirm before anyone is emailed
Pagestro tells your assistant to check the recipients with you before it sends an invoice or a signature request. Claude and ChatGPT normally ask your permission before they use a tool that makes changes; you can change that in their settings.
Changes are recorded
Connecting, disconnecting and every change or email made through the connection are recorded. Your most recent security events appear in Settings › Security, and we email you whenever an assistant is connected.
Your choice, any time
On the sign-in screen you can untick “Allow changes and sending” for read-only access. Disconnect any assistant in Account › API & MCP. Changing your password disconnects all of them.
Keys are passwords
An API key, or a connector address that contains one (older set-ups ending in /api/mcp/k/…), opens your account. Keep it private, give each app its own key, and revoke it in Account › API & MCP if it leaks.

Things to ask

Talk to your assistant in plain words. It looks up the right document or code first, then acts on it.

“Which of my invoices are overdue?”
“Send the “Website redesign” invoice to anna@example.com.”
“Who still needs to sign the NDA I sent last week?”
“Send my freelance contract for signature to Sam Lee, sam@example.com.”
“Mark invoice INV-0042 as paid.”
“Write a short launch email for our spring sale and save it to Pagestro.”
“Point the menu QR code to https://example.com/autumn-menu.”
“How many scans did the flyer QR code get this month, and from which countries?”

Troubleshooting

The Allow button is greyed out

Connecting an assistant needs the Pro or Business plan. Upgrade on the Pricing page, then go back to your assistant and connect again.

It says the request expired

The Pagestro sign-in screen is valid for 30 minutes and can be used once. Go back to your assistant and start connecting again.

My assistant can read but not send

It was connected with read-only access. Disconnect it in Account › API & MCP, then connect again and leave “Allow changes and sending” ticked.

It asks me to sign in again

The connection ended: you disconnected it, changed your password, didn’t use it for 90 days, or connected more than 25 assistants (the one unused longest is disconnected). Connect it again.

It says the monthly limit is reached

Each tool call counts as one API call toward your plan’s monthly allowance. The count starts again on the 1st of each month (UTC). Sends also count toward your invoice and signature request limits. You can see your usage in Account › API & MCP.

Claude Code doesn’t show pagestro in other projects

It was added for one project only. Run the command again with --scope user, then check with claude mcp list.

My app can’t complete the Pagestro sign-in

Sign-in works with apps that return to a web address or to localhost on your computer. For other apps and scripts, create an API key in Account › API & MCP and send it as Authorization: Bearer pgs_….

Still stuck?

Tell us what you tried and what your assistant said. We reply by email.

Contact support support@pagestro.com