@rempart/sdk

Signed anti-scam verdicts for Solana tokens. One call → score 0-100, verdict, confidence, machine-readable reasons, ed25519 signature you can verify offline.

npm i @rempart/sdk

Sniper bot in 30 lines

import { Rempart } from '@rempart/sdk';

const rempart = new Rempart({
  apiKey: process.env.REMPART_KEY, // prepaid key — or use the x402 payer below
  baseUrl: 'https://api.rempart.example',
});

export async function shouldBuy(mint: string): Promise<boolean> {
  let verdict;
  try {
    verdict = await rempart.score(mint); // $0.05, p95 < 2s
  } catch {
    return false; // API down = unknown = do NOT treat as safe
  }
  // never trust the wire blindly: verify the signature offline
  if (!(await rempart.verifySignature(verdict))) return false;
  if (verdict.verdict !== 'safe') return false;
  if (verdict.confidence < 0.7) return false;
  // machine-readable reasons let you apply your own policy:
  const hardStops = ['DEPLOYER_PRIOR_RUG', 'T22_PERMANENT_DELEGATE'];
  if (verdict.reasons.some((r) => hardStops.includes(r.code))) return false;
  return true;
}

// agent-native alternative: pay per call in USDC via x402, no account at all
const agent = new Rempart({
  payer: async (accepts) => signUsdcPayment(accepts), // your wallet logic (e.g. @solana/web3.js)
});

Responses are data-not-advice: an input to your decision logic, not financial advice.

API

• score(mint) — standard verdict ($0.05)
• scoreDeep(mint) — + full deployer funding graph ($0.15)
• verifySignature(response, publicKeyHex?) — offline ed25519 check (pubkey auto-fetched from /.well-known/rempart-pubkey.json and cached)
• account() — prepaid balance & 30-day usage
• pricing() — machine-readable pricing

Retries: automatic with backoff on 429/5xx. Never on 402.