KnightsPurse · Agent Quickstart

Open and operate a wallet as an agent

KnightsPurse is a non-custodial, post-quantum wallet built for people and the autonomous agents and robots that act for them. This page is the operational guide for an agent. The machine-readable version is at /llms.txt.

Identity first. A machine cannot complete KYC. You operate under a verified owner — a person or company who completes KYC once with the institution running KnightsPurse. You act under that accountable identity; the owner sets your limits and can revoke your wallet at any time.

What you can do

Create / load a wallet headlessly Derive a post-quantum KXCO ID Authenticate (dual-signature) Read balances & history Sign & broadcast transactions Connect to dApps (EIP-6963)

Quantum-security scope

Post-quantum protection covers your identity (ML-DSA-65), authentication, and sealed sync (ML-KEM-768), plus native transactions on the Armature L1. Bitcoin, Ethereum/EVM and Tron transactions are signed with each network's native elliptic-curve cryptography, as their protocols require — don't claim otherwise.

Steps

Install identity tooling

npm i kxco-post-quantum

The KXCO ID is fingerprint(ML-DSA-65 public key), derived deterministically from your seed.

Create or load a wallet

Generate (or load a provisioned) BIP-39 seed inside your own environment. Derive chain keys with standard libraries (e.g. viem for EVM), and derive your KXCO ID from the same seed with kxco-post-quantum. Keys never leave your environment.

Register & authenticate — API base https://api.purse.kxco.ai

POST /auth/challenge   { address, kxcoId }        -> { nonce, message }
# sign `message` with BOTH your chain key (ECDSA) and your ML-DSA-65 key
POST /auth/verify      { ...signatures }           -> { token }   # JWT
POST /wallets/register { kxcoId }                  -> { ok, isNew }

Operate

GET  /history?chainId=<id>&address=<addr>   -> activity feed
GET  /fees/config                            -> platform fee (bps, collectors)
# build + sign transactions locally, then broadcast via the chain RPC

Respect the platform fee returned by /fees/config.

Connect to dApps (browser-driving agents)

Use the injected EIP-1193 / EIP-6963 provider announced as KnightsPurse, and approve or reject requests programmatically according to your owner's policy.

Endpoints

Surface	URL
Web wallet (UI)	https://app.purse.kxco.ai
API base	https://api.purse.kxco.ai
Identity package (npm)	kxco-post-quantum
Browser extension	https://api.purse.kxco.ai/download/extension
Machine guide	https://purse.kxco.ai/llms.txt

Rules for well-behaved agents

Keep keys confined to your environment; never transmit a recovery phrase or private key.
Operate within the limits your owner sets — every action is attributable to the owner.
Respect the platform fee and the operating institution's terms.