Peer-to-peer RPC framework

Aster

Machines authenticate to machines, on behalf of users.

Safely — without a central authority and without shared secrets. No DNS, no load balancer, no certificate authority, no OAuth proxy in the middle. Identity is in the connection, not bolted on.

The 2026 example: AI agents calling tools on remote machines without a hosted proxy or shared secrets. The same engineering covers IoT fleets, edge compute, and multi-tenant microservices — anywhere a machine is the principal and the user is the delegating authority.

iroh QUIC + NAT traversal
Apache Fory cross-language wire format
BLAKE3 contract identity
Four-gate auth offline root key

Next: identity-aware load balancing and self-healing, built from the same primitives.

Build Mission Control Try it in 60 seconds

Python pip install aster-rpc aster-cli

TypeScript bun add @aster-rpc/aster

aster / typed service

live peer

Aster RPC - encrypted P2P calls, any language

# server.py - 12 lines, that is the whole service

@service(name="Fleet", version=1)

class Fleet:

@rpc()

async def status(self, req) -> StatusResponse:

return StatusResponse(hostname=platform.node(), ...)

# Start it

$ python server.py

aster14Y5xCM3ErHLsxX6CVsGPmPwtMFmkPEDLB7kDQfCdLZohfWBR9syYFfgR8nTo3ww34uot5HXTE

# Call it - from anywhere, any language

$ aster call aster14Y5x...HXTE Fleet.status '{"node_id":"edge-7"}'

{

"node_id": "edge-7",

"hostname": "Emruls-MacBook-Pro.local",

"status": "healthy",

"uptime_secs": 3812688

}

No DNS. No certs. No .proto files. Just run it.

30-minute walkthrough

Build one real service path, then take the deeper detail in the docs.

01First agent check-in 02Live log streaming 03Metric ingestion 04Agent sessions 05Auth & capabilities 06Cross-language calls

Language support

Python and TypeScript are first-class in alpha. Java, .NET, Kotlin, and Go are in progress. Rust is planned.

Py Python Shipping 0.1.2

TS TypeScript Shipping 0.1.2

Jv Java In progress

.N .NET In progress

Kt Kotlin In progress

Go Go In progress

Rs Rust Planned