MCP connectors
Connect your AI agent to zSign
Choose your AI tool, follow its connection steps, and start working with zSign through MCP.
One endpoint
https://zsign.io/mcp
Streamable HTTP with OAuth 2.1. Your tool opens a browser tab to sign in and approve access.
Step 1
1 · Choose your AI tool
Step 2
2 · Connect Claude Code
- 01
Run the add command in your terminal.
- 02
Type /mcp inside Claude Code and pick zsign to authenticate.
- 03
Sign in and approve. zSign uses OAuth 2.1 — your tool opens a browser tab to sign in and approve access. Or paste a zs_ API key as a Bearer token if your client supports headers.
- 04
Done. Paste the starter prompt below.
claude mcp add --transport http zsign https://zsign.io/mcp
Step 3
3 · Status
Waiting — this page can't see your client.
Step 4
4 · Once connected, paste this
Using the zSign MCP tools: 1) call get_pricing and summarize the credit packs; 2) call list_envelopes and tell me what is in my org; 3) then wait — do not call buy_credits or send_envelope until I say so.
API/MCP signup starts at 0 credits; email verification grants 3; a referral signup grants 25.
No account yet?
Your agent can call create_account on https://zsign.io/mcp/open to mint a zs_ key without signing in.