ActSeal MCP Server
Ed25519-signed receipts for agent actions — public verify, free 100/day.
ActSeal is a Developer Tools MCP (Model Context Protocol) server: Ed25519-signed receipts for agent actions — public verify, free 100/day. It is MIT-licensed and self-hosted from its source repository. Listed on MCP Collection since October 2026.
About ActSeal
ActSeal issues portable Ed25519-signed receipts over agent tool-call hashes. Downstream agents verify via public API without trusting the caller. Try without signup: https://actseal.xyz/try . Free 100/day. MCP: issue_receipt / verify_receipt.
How to connect ActSeal to Claude, Cursor or VS Code
ActSeal is self-hosted. Install it from the source repository, then register its start command in your MCP client's config (Claude Code, Cursor, Windsurf or VS Code).
{
"mcpServers": {
"actseal": {
"command": "<start command from the README>",
"args": []
}
}
}The exact command (often npx, uvx or docker) is in the project README at github.com/arults/actseal-mcp.
ActSeal FAQ
What is ActSeal?
ActSeal is a Model Context Protocol (MCP) server in the Developer Tools category. Ed25519-signed receipts for agent actions — public verify, free 100/day. MCP servers expose tools that AI assistants like Claude can call during a conversation.
How do I use ActSeal with Claude or Cursor?
ActSeal is self-hosted. Install it from the source repository, then register its start command in your MCP client's config (Claude Code, Cursor, Windsurf or VS Code).
Is ActSeal free to use?
ActSeal is published under the MIT license, so the software itself is free to run. Hosted or API-backed servers may have their own usage tiers; check the project homepage.
Where is the source code for ActSeal?
The source is at github.com/arults/actseal-mcp.