Attestix — Claude Code MCP server: features and setup
Attestix records cryptographically verifiable evidence about AI agent identity, credentials, and delegated authority. Use it in AI governance workflows.
claude mcp add attestix -- uvx attestixWhat Attestix does
Attestix supports agent identities, signed credentials, and governance records. Its CLI can verify an agent with attestix verify <agent-id> and display a hash-chained audit trail with attestix audit <agent-id>. The project also provides MCP and REST interfaces.
The REST API requires ATTESTIX_API_KEY by default and runs as a single-tenant server; it rejects headers for other tenants. Presentation checks require the caller’s expected challenge and domain, since a signature alone does not prevent replay. The project has not undergone an independent external security review, so assess key protection and the cryptographic components before deployment.
What it helps with
- create a cryptographically verifiable agent identity
- verify an agent’s credentials
- inspect a hash-chained audit trail
- check for gaps in compliance documentation
- record delegated authority
Example prompts for the agent
- Create an agent identity named
MyBot. - Cryptographically verify agent
<agent-id>. - Show the audit trail for agent
<agent-id>.
How to install Attestix
Platform CLI
claude mcp add attestix -- uvx attestixuvx runs the command named after the package; if the README names another one, use uvx --from attestix <command>
Platform CLI
codex mcp add attestix -- uvx attestixuvx runs the command named after the package; if the README names another one, use uvx --from attestix <command>
Config file
{
"mcpServers": {
"attestix": {
"command": "uvx",
"args": [
"attestix"
]
}
}
}uvx runs the command named after the package; if the README names another one, use uvx --from attestix <command>
Config file
{
"servers": {
"attestix": {
"type": "stdio",
"command": "uvx",
"args": [
"attestix"
]
}
}
}uvx runs the command named after the package; if the README names another one, use uvx --from attestix <command>
Platform CLI
gemini mcp add attestix uvx attestixuvx runs the command named after the package; if the README names another one, use uvx --from attestix <command>
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Attestix
How do I install Attestix in Claude Code?
Run claude mcp add attestix -- uvx attestix to add the Attestix MCP server.
What does Attestix do?
It records and verifies evidence about AI agent identities, credentials, and delegated authority. Its CLI also verifies identities and displays audit trails.
What does presentation verification require?
The caller must provide the expected challenge and domain. A signature on its own does not prevent replay.
