Blueprint SDK

The Blueprint SDK is the Rust toolkit for building blueprints (off-chain services) and running them as an operator against Tangle’s EVM protocol.

It includes:

The Blueprint Runner (router + producers + consumers + background services)
Typed contexts (keystore, EVM provider, Tangle EVM client)
The cargo-tangle CLI for creating, preregistering, and running blueprints
Optional gateways for HTTP ingress and settlement (webhooks, x402)

Source of truth repos

SDK + runner + CLI: https://github.com/tangle-network/blueprint/tree/main
On-chain contracts: https://github.com/tangle-network/tnt-core/tree/main

What You Run (Operator Tooling)

cargo-tangle: developer/operator CLI (register, run, service lifecycle, jobs)
blueprint-manager: long-lived operator runtime that watches chain events and runs services
pricing-engine-server: optional RFQ server that issues signed quotes

Configuration Surface (Tangle EVM)

Most tooling needs the same deployment addresses and endpoints:

http_rpc_url / ws_rpc_url
tangle_contract (core protocol)
staking_contract (MultiAssetDelegation)
status_registry_contract (heartbeats; optional but recommended)
keystore_path

The CLI exposes these as shared flags:

Blueprint Manager Introduction to Contexts