Issue signed receipts for AI agent actions; verify any receipt offline - free, no account.
Connect Remote server
claude mcp add --transport http mcp https://mcp.pcrzero.com/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"mcp": {
"url": "https://mcp.pcrzero.com/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"mcp": {
"type": "http",
"url": "https://mcp.pcrzero.com/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://mcp.pcrzero.com/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
The tool list was not available in our last check.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Bearer ak_live_… / ak_test_…. Required only for issue_receipt. verify_receipt and get_keyset work without it. |
Details
| Endpoint | https://mcp.pcrzero.com/mcp (Streamable HTTP) |
| Package | @scytalex-llc/[email protected] (NPM, stdio) |
| Package | @scytalex-llc/[email protected] (NPM, streamable-http) |
| First published | 13 Aug 2026 |
| Last updated | 13 Aug 2026 |
| Registry name | com.pcrzero/mcp |
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