kontext

The trust layer for agentic stablecoin and fiat payments.

Cryptographic verifiable intent for org-wide payments using one line of code and a CLI.

npx kontext init

import { Kontext, withKontextCompliance } from 'kontext-sdk';

const kontext = Kontext.init();
const client = withKontextCompliance(walletClient, kontext);
// Every stablecoin transfer is now verified automatically

What it does

When your agent sends USDC, Kontext captures cryptographic proof that the payment was intended, screened, and logged. Every transfer gets OFAC screening, a tamper-evident audit trail, and a trust score. The org's compliance officer can export the full chain of evidence at any time.

Two layers of coverage:

• Code wrap -- withKontextCompliance() intercepts sendTransaction/writeContract on your viem client
• Chain listener -- SDK watches monitored wallets on-chain for all outgoing stablecoin transfers, regardless of source

Packages

Package	Registry	Description
kontext-sdk	npm	TypeScript SDK -- zero runtime deps
@kontext-sdk/cli	npm	CLI -- npx kontext init, kontext verify, MCP server
kontext-sdk	PyPI	Python client -- sync/async HTTP bindings

Quick start

# 1. Initialize your project
npx kontext init

# 2. Install the SDK
npm install kontext-sdk

# 3. Wrap your client (2 lines)

const kontext = Kontext.init();  // reads kontext.config.json
const client = withKontextCompliance(walletClient, kontext);

Or use verify() directly for explicit control:

const result = await kontext.verify({
  txHash: '0xabc...',
  chain: 'base',
  amount: '5000',
  token: 'USDC',
  from: '0xAgent...',
  to: '0xMerchant...',
  agentId: 'payment-agent',
});

MCP server

{
  "mcpServers": {
    "kontext": {
      "command": "npx",
      "args": ["-y", "@kontext-sdk/cli", "mcp"]
    }
  }
}

Works with Claude Code, Cursor, and Windsurf.

Development

pnpm install && pnpm -r build && pnpm -r test

License

MIT

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Built by Legaci Labs