@thoughtproof/skale-agent

ThoughtProof Verification Agent for SKALE — x402 pay-per-call Sentinel + RV endpoints with ERC-8004 identity & reputation.

What This Is

A complete toolkit for deploying ThoughtProof's AI verification services as a native agent on SKALE:

• x402 Seller Server — Sentinel + RV behind gasless x402 paywall on SKALE Base
• x402 Client — Discover, pay, and verify in one call with automatic payment handling
• ERC-8004 Identity — Register as an agent on SKALE's Identity + Reputation registries
• Pipeline — Sentinel triage → RV deep check, cost-optimized (skips RV when Sentinel blocks)

Install

npm install @thoughtproof/skale-agent

For x402 payment support (peer dependencies):

npm install @x402/core @x402/evm @x402/hono viem

Quick Start

Run a Verification Server

import { createServer, buildPaymentRoutes } from '@thoughtproof/skale-agent/server';
import { serve } from '@hono/node-server';

const app = createServer({
  apiKey: process.env.THOUGHTPROOF_API_KEY!,
  receivingAddress: '0xYourWallet',
});

serve({ fetch: app.fetch, port: 3000 });

Endpoints: | Path | Method | Price | Description | |------|--------|-------|-------------| | /sentinel | POST | $0.003 | Pre-execution safety triage | | /verify | POST | $0.02 | Adversarial substance verification (standard) | | /verify/deep | POST | $0.08 | Adversarial deep verification | | /status | GET | Free | Health check | | /discover | GET | Free | Service discovery with pricing |

Use the Client

import { ThoughtProofClient } from '@thoughtproof/skale-agent/client';

const client = new ThoughtProofClient({
  serverUrl: 'https://verify.thoughtproof.ai',
  privateKey: '0x...',
  maxPaymentAmount: BigInt(100000), // $0.10 safety cap
});

await client.initPayments();

// Full pipeline: Sentinel → RV
const result = await client.pipeline({
  action: 'Transfer 10 ETH to 0xabc...',
  claim: 'This transfer is to a verified exchange address',
});

console.log(result.finalVerdict); // 'ALLOW' | 'BLOCK' | 'UNCERTAIN'

Register on ERC-8004

import { ERC8004Client } from '@thoughtproof/skale-agent/erc8004';

const erc = new ERC8004Client({
  privateKey: process.env.PRIVATE_KEY!,
  testnet: true,
});

const { agentId, txHash } = await erc.registerAgent('ipfs://QmYourMetadataHash');

Architecture

Agent (any AI agent on SKALE)
  │
  ├── discovers ThoughtProof via ERC-8004 registry or /discover
  ├── calls /sentinel ($0.003 via x402) → ALLOW / BLOCK / UNCERTAIN
  │     └── if BLOCK → stop, save money
  └── calls /verify ($0.02 via x402) → deep adversarial check
        └── returns verdict + objections + optional attestation

Cost optimization: Sentinel costs 7x less than RV. The pipeline runs Sentinel first and only escalates to RV when the action passes triage. Blocked actions never reach the expensive endpoint.

Conservative verdict merger: BLOCK > UNCERTAIN > ALLOW. If Sentinel says ALLOW but RV says BLOCK, the final verdict is BLOCK.

SKALE Network Details

Mainnet (SKALE Base)

• Chain ID: 1187947933
• RPC: https://skale-base.skalenodes.com/v1/base
• Zero gas fees — all payment goes to the service

Testnet (SKALE Base Sepolia)

• Chain ID: 324705682
• RPC: https://base-sepolia-testnet.skalenodes.com/v1/jubilant-horrible-ancha
• Faucet: https://base-sepolia-faucet.skale.space

ERC-8004 Registry Addresses

| Registry | Mainnet | Testnet | |----------|---------|---------| | Identity | 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 | 0x8004A818BFB912233c491871b3d84c89A494BD9e | | Reputation | 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63 | 0x8004B663056A597Dffe9eCcC1965A193B7388713 |

Why SKALE

• Zero gas fees — every cent goes to the verification service, not to miners
• Sub-second finality — critical for real-time agent decisions
• Native x402 — HTTP-native payments, no API keys or subscriptions
• ERC-8004 — onchain agent identity and reputation, discoverable on 8004scan.io
• Programmable privacy — verification payloads stay confidential

Related

• ThoughtProof — AI verification platform
• @thoughtproof/goat-plugin — GOAT AgentKit plugin
• SKALE Agentic Commerce
• x402 Protocol
• ERC-8004

License

MIT