Cryptographic identity eliminates API key management. No rotation, no sprawl, no revocation chaos.
Every API key is a shared secret waiting to leak. You rotate them manually. You revoke them one-by-one. You track who has which key in a spreadsheet. When an employee leaves, you scramble to find every key they ever touched.
API keys don't scale. By the time you have 50 services talking to each other, you're managing 2,500+ key pairs. One compromise means rotating hundreds of keys across dozens of services.
Identity-based authentication. Each agent, microservice, or IoT device gets a cryptographic identity (DID). No shared secrets. No keys to rotate. No sprawl.
When Agent A wants to talk to Agent B, they authenticate using their DIDs. The connection is encrypted end-to-end with hybrid post-quantum cryptography (X25519+ML-KEM-768). If Agent A's identity is compromised, you revoke exactly one DID. Every other connection keeps working.
Rate limiting bonus: With API keys, 1,000 workers share one quota. With xLink, each worker gets its own quota. Your throughput scales linearly.
const conn = await connect('payments') await conn.value.agent.send({ to, payload })
Learn how identity-based M2M works under the hood. Architecture, benchmarks, migration guides, and production deployment patterns.
Read White Paper →