QuantBase Rug-Check API v1.1.0

QuantBase Rug-Check: per-mint rug-risk verdict (RED/AMBER/GREEN-ish) for Solana/pump.fun tokens - dev sell speed, bundled creation slot, creator dump history, liquidity, holder concentration. 1-3 mints per call.

Endpoint

POST https://rugcheck.35-171-220-195.sslip.io/v1/rugcheck · Content-Type: application/json

Body: {"mints": [ ...1-3 base58 Solana mint addresses ]}. Duplicates are removed. Malformed input returns 400 for free, before any payment is requested.

Price (x402 v2, scheme `exact`)

Mints	USDC
1	0.25
2	0.40
3	0.50

Rails: eip155:8453 → 0xd5f3A78AB272Eb36a997f4aA249b876BDB9692E3 (native USDC, EIP-3009). Facilitator: PayAI.

Flow

POST the body without payment → HTTP 402 with a PAYMENT-REQUIRED header (amount, asset, payTo, network, resource URL).
Sign the exact payment with any standard x402 client and retry the identical body with PAYMENT-SIGNATURE.
200 returns JSON below plus a PAYMENT-RESPONSE header containing the settlement transaction hash.

Response example

{
  "runId": "x402-2026-10-28T11-40-02-123Z-a1b2c3",
  "mints": [
    "FLJqniJDNCqTUTzUWTSMbAGdFpG8a3DNYNSh7xV9pump"
  ],
  "summary": [
    {
      "mint": "FLJqniJDNCqTUTzUWTSMbAGdFpG8a3DNYNSh7xV9pump",
      "type": "pumpfun",
      "name": "Example",
      "creator": "<creator wallet>",
      "verdict": "RED",
      "red_flags": [
        "dev sold >50% of supply within 10 minutes of launch"
      ],
      "amber_flags": [
        "top-10 holders own >40%"
      ],
      "good": [],
      "unavailable_sources": []
    }
  ],
  "report_markdown": "# Rug-check report\n...",
  "disclaimer": "Research, not financial advice. A clean check does not mean a coin is safe."
}

Each mint gets a verdict (RED / AMBER / GREEN-ish) from on-chain checks: dev sell speed after launch, bundled creation slot, creator's history of dumping prior tokens, liquidity, and holder concentration. unavailable_sources lists any data source that could not be reached for that run.

Errors, refunds and recovery

400 invalid input: never charged.
402 payment required / invalid payment: nothing settled.
500 analysis failed: the payment is not settled (settlement only happens after a successful 2xx response), so you are not charged. Retry later with a fresh payment.
Typical latency 20-120 s; hard timeout 240 s. If your connection drops before you get a response, check the chain for your EIP-3009 authorization nonce: if it was not settled you were not charged. If it settled and you did not receive the report, email the operator with the tx hash and we will resend the stored report for that run or refund it.

Limits

Request body ≤ 16 KB; 1-3 mints per call; Solana mainnet tokens only.

Other

Health: GET /health. Machine-readable: /openapi.json, /.well-known/x402, /llms.txt. Operator contact: quantbase@mail.grokbot.com.

QuantBase Rug-Check API v1.1.0 · Docs · Terms · OpenAPI · llms.txt · x402 discovery