Connect LetSign to Claude Code and your agent drafts the proposal, the pricing options and the contract without leaving the terminal - then stages it for your review. Your client opens one link, picks a plan, signs and pays into your own Stripe.
Claude Code does the thinking, LetSign does the contracting, Stripe does the collecting. You stay in the loop exactly once - at send time.
No SDK, no webhooks, no integration project. The whole setup is one command, one Stripe connection and one prompt.
In your terminal, run one command:
claude mcp add --transport http letsign https://app.letsign.ai/api/mcpThen type /mcp inside Claude Code to complete the OAuth sign-in. Add --scope user and LetSign is available in every project on your machine, not just the current repo. Working in claude.ai instead? Claude has a one-click install from app.letsign.ai.
In the LetSign app, connect your own Stripe account once. From then on every payment - one-off, subscription, or save-card-on-file - is collected through your Stripe and lands in your account. LetSign never holds your money.
Talk to Claude Code right where the work lives, notes and all. One proven opener:
"Read clients/meridian/notes.md and draft the retainer proposal for Meridian Consulting - three tiers, the middle one at the number in the notes - and stage it for my review."
Claude Code stages the proposal; nothing sends itself. You read it, tweak anything you like (a discount, net-60 terms, a different tier), and press send. The human send-gate is a feature, not a limitation.
Your client opens one public link, chooses between the plans you offered (conditional pricing built in), verifies their email, signs a binding e-signature and pays through your Stripe - in a single sitting. Remember: the sender never signs. The client does.
Prefer a chat window to the terminal? The same stack runs in Claude. Writing code in a different editor? There is a Cursor playbook too.
Claude Code drafts the whole proposal with up to several plans your client can choose from - three tiers, optional add-ons, the works - straight from your call notes.
"Has Meridian signed yet?" Claude Code checks proposal status through the MCP: opened, plan picked, signed, paid - without you opening a dashboard.
Client asks for net-60 or a 10% discount? Tell Claude Code, and it updates the terms and restages the proposal for your review.
One-off invoices, subscriptions, or save-card-on-file - collected through your own Stripe account at signature time, not weeks later.
And everything Claude Code does here, you can also do by hand. Every proposal, template and setting is fully editable in the LetSign app - full parity with the MCP. That two-way door is the essence of an agent-native contract: your agent and you work on the same object, and neither is a second-class citizen.
Yes. Claude Code talks to remote MCP servers over streamable HTTP natively. Run claude mcp add --transport http letsign https://app.letsign.ai/api/mcp, complete OAuth with the /mcp command inside a session, and add --scope user so the LetSign tools are available in every project on your machine.
No. Adding the server is one command in your terminal, and that is the last thing that looks like code. You connect Stripe once inside LetSign, then everything else happens in plain conversation with Claude Code. And if you ever prefer to work by hand, every proposal and template is fully editable in the LetSign app.
The Free plan is $0 with a 0.20% fee on payments collected through it. The launch plan is $19 per month until October 1, 2026, and that price is locked until October 1, 2028; after launch the standard price is $49 per month. Paid plans pay 0% on payments up to $20,000 per month, then 0.05% above that.
You do. Claude Code drafts and stages the proposal, but nothing sends itself: a human reviews and presses send. And the sender never signs. Your client opens the link, picks a plan, verifies their email, signs a binding e-signature and pays through your Stripe.
Run one command, connect Stripe, and let Claude Code stage the next proposal for your review.
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