SignEnvoy

E-signatures you can call from code

Send a PDF for signature from the API, the CLI, or the dashboard. You get back a sealed PDF anyone can verify in Acrobat.

$0.25 per completed envelope $20 a month minimum. The sandbox is free, with no time limit and no card.

Start in the sandbox Read the API docs

A terminal card reading POST /v1/documents with a curved arrow to a sealed PDF: a signature, an amber seal, the audit trail page behind it, an open signature panel with a green check, and the pixel pigeon on top holding a stamp.

Three ways in, one API key

A request and a response drawn as two cards exchanging a document along a curved path, with the pixel pigeon carrying it.

The API

REST, described by an OpenAPI 3.1 spec. Our official clients are generated from it, so they don't drift.

API reference

A terminal window with the pixel pigeon perched on its top edge.

The CLI

senv sends envelopes, tracks them, and downloads the sealed PDFs from your terminal. No telemetry. 

brew install --cask senv

CLI reference

A central hexagon node linked to three small nodes, one carrying a sealed envelope, with the pixel pigeon beside it.

MCP

Lets an AI agent send and track envelopes from inside your tools. It uses an ordinary API key and sees only what that key can see.

Test API keys never send email and never show up on your bill.

Send, track, and embed

A stack of documents fanning out into sealed envelopes, with the pixel pigeon picking up the first.

Send

Start from a PDF or a template. Bulk send takes a CSV and checks every row before anything goes out.

A vertical timeline of events ending in an amber checkmark, with the pixel pigeon at the bottom.

Track

9 signed webhook events, from sent to sealed. Missed one? Redeliver it from the dashboard.

A phone and a browser window each showing a signing page inside another app, with the pixel pigeon peeking from behind.

Embed

Put the signing page inside your app with a single-use session, or send recipients the link yourself.

Read the API docs

Wherever the signature happens

In your checkout

Customers sign the rental agreement or waiver on the same page they pay on.

In your onboarding

New hires, clients, and tenants sign their paperwork as one step in your signup.

On your platform

Your users send contracts to their own clients without leaving your app.

After your other tools act

A deal closes in your sales system and the contract goes out on its own. Once everyone signs, the next step starts.

Four app screens, each with the same amber signature field: a checkout with a card form and pay button, an onboarding stepper on its third step, a platform window with a client list and an envelope leaving one row, and a pipeline board where the pixel pigeon picks up an envelope from a completed card.

Watch every envelope from one screen

Everything your code sends shows up in the dashboard with its status: waiting, completed, declined, voided, expired. Filter by status, search by title, recipient, or template, and file envelopes into folders. The meter at the top is your bill for the month. Test envelopes never appear in it.

The SignEnvoy dashboard's envelope list: a usage meter reading six completed this month, status filters, and rows of envelopes marked waiting, completed, or declined, each with its recipient and creation time.
The envelope list, from a live workspace.
A signed document with a green verified check badge and an amber seal, a certificate card showing a hash chain and a checked consent box, and the pixel pigeon holding a stamp.

Built for the ESIGN Act and UETA

An e-signature holds up when the person meant to sign, agreed to sign electronically, and the record can be checked later. Every envelope records all three.

  • Consent first. Recipients agree to sign electronically before they can touch a field.
  • Every signature is attributed. Name, email, IP address, browser, and a UTC timestamp.
  • The record can't be quietly edited. Each audit event is chained to the one before it, so changing or deleting one breaks the chain.
  • Anyone can check it. Open the sealed PDF in Acrobat and look at the signature panel. You don't need us for that. How to verify a document.

Covers ESIGN and UETA in the US, and SES and AES under eIDAS in the EU.

One plan, priced per envelope

$0.25 per completed envelope, with a $20 monthly minimum. If you complete 134 or fewer envelopes in a month, you pay $20. If you send 3 a month, we're the expensive option.

Every workspace gets the full API, webhooks, and up to 11 people. No tiers.

The sandbox costs $0 and never expires.

Start in the sandbox See full pricing

A tall tower of navy coins beside one small coin resting on a sealed envelope, with the pixel pigeon looking up at the tower.

Asked to sign something through SignEnvoy? Check that it's genuine.