Show HN: Arken – cryptographic identity for AI agents calling MCP servers/APIs

Category: security

Tags: cryptography, identity, ai-agents, rust, did

Score: 5.3/10 (Innovation: 6, Technical: 5, Documentation: 5, Utility: 5)

Arken-core is a Rust library providing cryptographic identity for AI agents using ECDSA secp256k1 signatures and W3C did:key identifiers, with a simple challenge-response authentication flow. It aims to be the cryptographic foundation for a broader ecosystem of identity and verification tools for MCP servers and APIs.

Target audience: backend developers, security engineers, AI agent developers

Repository: https://github.com/arkenforge/arken-core · Rust · NOASSERTION · 12 stars

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