Send PDFs for legally binding e-signatures with free templates and unlimited sends.
Connect to SignSimple to send documents for legally binding electronic signature. Track signing status, use free professional templates (NDA, lease, contractor agreement, waiver, bill of sale, promissory note), and download signed PDFs.
Try asking Muse: "Send my contractor agreement to three people for signature and let me know when they've all signed."
Source: Found in the official MCP Registry (app.signsimple/signsimple) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 42 min ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://signsimple.app/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
SignSimple is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://signsimple.app/mcpResponse time at the last check: 147ms. Worked in 99.5% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
send_for_signatureSend a PDF document for legally binding electronic signature via SignSimple (free, unlimited). Provide the PDF as a fetchable URL or base64, plus recipient name(s) and email(s). Each recipient is emailed a secure signing link; signature and date fields are placed automatically unget_document_statusCheck the status of a document previously sent for signature: overall state (sent/completed/declined/expired/voided), per-recipient progress (pending/viewed/signed), and the signed PDF download URL once complete. Requires a SignSimple API key.list_documentsList the 25 most recent documents sent from the connected SignSimple account, with status and signed-PDF URLs where complete. Requires a SignSimple API key.list_templatesList SignSimple's free, professionally drafted document templates (NDA, lease, contractor agreement, liability waiver, bill of sale, promissory note). Returns each template's info page and direct PDF URL — pass the PDF URL to send_for_signature as document_url to send one. No APIhttps://signsimple.app/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use SignSimple to help me. It is a free service with an MCP server at https://signsimple.app/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 13:45 UTC) the endpoint was working, answering in 147ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 4 tools, including send_for_signature, get_document_status, list_documents, list_templates. For example, you could ask Muse: "Send my contractor agreement to three people for signature and let me know when they've all signed."
This listing was added from public sources (Found in the official MCP Registry (app.signsimple/signsimple)). If you build SignSimple, claim it to correct the details and get your badge.
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