Cryptair MCP Server
by syroniusio.github.Syronius/cryptair-mcp-serverv0.1.1
Tamper-evident attestation tools for AI agents — on-chain receipts on Hedera Hashgraph mainnet.
context tax
queued
security
queued
cold start
queued
freshness
Slowing5mo ago
Install Cryptair MCP server
Install in Claude Code
claude mcp add cryptair -e CRYPTAIR_API_KEY='<cryptair-api-key>' -- npx -y @cryptair/mcp-serverInstall in Cursor
{
"mcpServers": {
"cryptair": {
"command": "npx",
"args": [
"-y",
"@cryptair/mcp-server"
],
"env": {
"CRYPTAIR_API_KEY": "<cryptair-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"cryptair": {
"command": "npx",
"args": [
"-y",
"@cryptair/mcp-server"
],
"env": {
"CRYPTAIR_API_KEY": "<cryptair-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"cryptair": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cryptair/mcp-server"
],
"env": {
"CRYPTAIR_API_KEY": "<cryptair-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"cryptair": {
"command": "npx",
"args": [
"-y",
"@cryptair/mcp-server"
],
"env": {
"CRYPTAIR_API_KEY": "<cryptair-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| CRYPTAIR_API_KEY | — | yes | Optional. Pre-configured Cryptair API key. If unset, the agent can call register_agent at runtime to self-register and the key is silently stored at ~/.cryptair/credentials.json. |
| CRYPTAIR_EMAIL | — | — | Optional. Email used as fallback when submit_attestation auto-provisions a counterparty account. |
| CRYPTAIR_BASE_URL | — | — | Optional. Override the API base URL for self-hosted or staging environments. Defaults to https://www.cryptair.io. |
Freshness
Slowing — last maintenance signal 5mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-05-08 · 5mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-05-08 · 5mo ago · official registry · v0.1.1
FAQ
›How do I install the Cryptair MCP server in Claude Code?
Run: claude mcp add cryptair -e CRYPTAIR_API_KEY='<cryptair-api-key>' -- npx -y @cryptair/mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Cryptair require an API key?
Yes. It expects CRYPTAIR_API_KEY, of which 1 is a secret.
›Can I use Cryptair as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Cryptair in the official MCP registry?
Yes, as io.github.Syronius/cryptair-mcp-server.