App

Connect Signatureapi to any app

API for generating documents from templates and collecting legally binding electronic signatures.

Connects with an API keysignatureapi.com

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

Build solutions, not workarounds.

What do you want to automate with Signatureapi?

Ask the assistant

You'll sign in before anything runs. What you typed comes with you.

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client
Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide (opens in a new tab)
Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide (opens in a new tab)
Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide (opens in a new tab)
Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide (opens in a new tab)
Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide (opens in a new tab)
Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide (opens in a new tab)

Pair it

Connect Signatureapi with another app

What your agent can do with Signatureapi

Triggers and actions 15 actions

  • Action
    Add ceremony

    Creates a new signing ceremony for a recipient. Any previous active ceremony for that recipient is revoked. Returns the ceremony, including its URL when the recipient is authenticated by email code or by your own application.

  • Action
    Add deliverable

    Creates an additional deliverable (signed PDF package) from a completed envelope. The envelope must be completed.

  • Action
    Add envelope

    Creates an envelope with documents and recipients and starts the signing process.

  • Action
    Add upload

    Uploads a PDF, DOCX or PNG file to SignatureAPI and returns a URL you can use as a document source when creating an envelope. Uploads expire after 24 hours.

  • Action
    Cancel envelope

    Cancel an in-progress envelope so remaining recipients can no longer sign.

  • Action
    Delete envelope

    Delete an envelope.

  • Action
    Get deliverable

    Retrieves a deliverable by its ID, including its status and, once generated, a download link for the signed PDF.

  • Action
    Get envelope

    Retrieve a single envelope by id.

  • Action
    Get recipient

    Retrieves a recipient's details, including status, ceremony information and completion timestamp.

  • Action
    Get upload

    Fetches an uploaded file's record by ID: its format, size, hash and expiry. An error occurs if the upload is not found.

  • Action
    List deliverables

    Returns the deliverables (signed PDFs with audit log) of an envelope, earliest first.

  • Action
    List envelopes

    Lists envelopes in the account, most recent first, optionally filtered by status or topic.

  • Action
    Resend request

    Resends the signing request to a recipient who has not yet completed their ceremony, e.g. as a reminder or after a lost or soft-bounced email.

  • Action
    Update envelope

    Update mutable fields (e.g. title, metadata) of an existing envelope.

  • Action
    Update recipient

    Replaces a recipient who has not yet completed with a new person. The original recipient is marked replaced and a new recipient is created with the same type, key, routing position and places.

Reviews

What our customers say

Questions

Signatureapi, answered

What can your agent do in Signatureapi?

Any of Signatureapi's 15 actions, including Update envelope, Update recipient, Add ceremony and Add deliverable. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can Signatureapi connect to?

Any app in the catalog; the list on this page pairs Signatureapi with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.