# ZapAssina Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## ZapAssina

Send documents for e-signature, track who has signed, and keep contracts organized in folders.

- Record: https://musedirectory.ai/connector/zapassina
- Category: Productivity
- Developer: usefulapi (https://usefulapi.io/zapassina/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 172ms, checked 2026-11-09T23:11:19Z
- Endpoint: https://zapassina.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-09T23:11:19Z)
- Source: Found in the official MCP Registry (io.usefulapi/zapassina) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Fzapassina

Connects Muse to ZapAssina for electronic signatures. Muse can send a document out for signature, check which signers have completed it, and file finished agreements into folders, so contracts and forms move without leaving the chat.

Example request: "Send the vendor agreement to both signers and tell me when they have all signed."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use ZapAssina to help me. It is a free service with an MCP server at https://zapassina.usefulapi.io/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.

Screening checks:
- MCP handshake: pass (Answered in 172ms)
- Domain against threat feeds (Cloudflare security DNS): pass (zapassina.usefulapi.io, usefulapi.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)