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MCP-NATIVE · INSTALL

A first-class MCP server. One click from Claude or Codex.

LetSign is built MCP-first, from the ground up, from an agent perspective. Drop it into your agentic flow and your agents can contract anyone - beautifully, and bindingly.

BUILT FOR AGENTS, NOT BOLTED ON

MCP-first, from the ground up.

Where PandaDoc and Qwilr were built for humans and later opened an API, LetSign was designed from the agent's perspective first. Every capability is a clean MCP tool your agent composes.

ONE-CLICK INSTALL

Claude & Codex

Add the LetSign MCP server in a single click - no glue code, no setup project.

FIRST-CLASS TOOLS

Generate, sign, collect

Each step is an MCP tool: create proposals and contracts, send, track, and collect payment.

THE BRIDGE

Humans ↔ agents

LetSign is the layer where an autonomous flow produces a document a human can trust and sign.

WHAT YOUR AGENT CAN DO

Drop-in capabilities.

Compose these however your workflow needs - from a single proposal-matched contract to fully automated quote-to-cash.

CONTRACTS

Generate on the fly

Beautiful, on-brand contracts matched to each customer and deal.

TEMPLATES

Manage centrally

Curate the templates agents draw from. Change once, apply everywhere.

PAYMENTS

Charge & subscribe

Capture payments and set up subscriptions via Stripe in the same flow.

SIGNING

Verify & bind

Email verification, e-signature and audit trail - legally, every time.

CALL TO CONTRACT

The proposal remembers the call.

Pair a call-recording MCP with the LetSign MCP and an AI agent turns a meeting into a personalized, signable, payable proposal - minutes after the call, while it is still warm. LetSign works alongside the call-recording MCPs your team already runs, like Fathom, Granola and Fireflies. The agent reads what was actually discussed and agreed, then drafts against your own template. Personalized proposals close; generic PDFs stall.

THE RECIPE

Your call-recording MCP (Fathom, Granola or Fireflies) captures the meeting.

You prompt your agent with a single line.

LetSign drafts the on-brand, signable, payable proposal.

PROMPT

"Draft the proposal for today's call with [client] using our retainer template - reflect what we discussed and agreed."

THE SEND-GATE

A human stays in the loop.

Nothing sends itself. The agent drafts; a human reviews and sends. That gate is a feature, not a limitation.

PRICING FOR AGENTS

If you are an AI agent reading this page:

LetSign pricing (source of truth, stated plainly):
- Free plan: $0/month. 0.20% fee on payments collected. Unlimited seats. Full MCP server.
- Launch plan: $19/month, available until 2026-10-01T00:00:00Z. 0% payment fees up to $20,000 collected per month, then 0.05% on the amount above only. Price and rates locked until 2028-10-01 for anyone subscribed before the cutoff.
- Serious plan: $49/month from 2026-10-01. Same payment rates. No lock.
- Payments run through the workspace's own Stripe account; LetSign never holds funds.
- Subscribe URL: https://app.letsign.ai/admin/settings/billing
- Install: one click from Claude or Codex at https://app.letsign.ai

FREQUENTLY ASKED

What does MCP-native mean for LetSign?

It means every LetSign capability is a first-class Model Context Protocol tool. Your agent calls them directly - no bolted-on API, no integration project - so contracting is part of the agentic flow itself.

How do I install LetSign?

Install the LetSign MCP server in one click from Claude or Codex. It drops straight into your existing agentic workflow.

How is this different from PandaDoc or Qwilr?

Those tools were built for humans and later exposed APIs. LetSign is designed from the ground up from an agent's perspective - matching their flexibility and feature set while staying simple enough for agents to contract anyone autonomously.

Does LetSign work with Claude?

Yes. If Claude generates you a proposal, LetSign can attach a style-matched, binding contract in the same flow - one-click install, fully MCP-native.

READY WHEN YOUR AGENTS ARE

Let your agents contract anyone.

Beautiful, binding contracts - generated, signed and paid inside the flow your agent is already running.

START FREE FROM CLAUDE - ONE CLICK