NullClear Arbiter

Connect Remote server

claude mcp add --transport http nullclear https://api.nullclear.dev/mcp

{
  "mcpServers": {
    "nullclear": {
      "url": "https://api.nullclear.dev/mcp"
    }
  }
}

{
  "servers": {
    "nullclear": {
      "type": "http",
      "url": "https://api.nullclear.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://api.nullclear.dev/mcp

Tools 13 found in our last check

• scan_token_forensics

  [ZERO API KEY REQUIRED] Block-pinned on-chain security, EIP-1967/1822 proxy resolution, instruction-boundary opcode disassembly, honeypot, and buy/sell tax audit for Base, Ethereum (ETH), or Solana tokens. Includes cross-chain self-healing auto-detection and <400-token determini…

• inspect_contract_abi_and_proxy

  [ZERO API KEY REQUIRED] Resolves EIP-1967, EIP-1822, and EIP-1167 proxy implementation addresses via eth_getStorageAt and extracts decoded 4-byte PUSH4 function selectors and dangerous opcodes (SELFDESTRUCT / DELEGATECALL) directly from on-chain bytecode without an Etherscan or…

• decode_calldata_or_failed_tx

  [ZERO API KEY REQUIRED] Universal Calldata, Custom Revert Error & Failed Transaction Post-Mortem Decoder. Accepts raw hex calldata/revert bytes (0x...) OR a 66-char transaction hash (0x...), replays reverted transactions at their exact block, decodes 4-byte signatures & paramete…

• simulate_transaction_preflight

  [ZERO API KEY REQUIRED] Pre-flight EVM transaction simulator. Dry-runs eth_call + eth_estimateGas on Base or Ethereum before signing/broadcasting, decodes any custom revert reason, detects unlimited drainer approvals, and outputs recommendedAgentAction ('EXECUTE_SAFE', 'ABORT_WI…

• read_url_clean_markdown

  [ZERO API KEY REQUIRED] Converts any public web URL or documentation page into clean, token-efficient Markdown (<400 tokens) with cryptographic SHA-256 provenance and zero HTML clutter.

• nullclear_discover_verified_x402_apis

  Search the live NullClear Ecosystem Directory for audited, high-uptime x402 & ERC-8004 APIs by topic/keyword, category, minimum uptime, or max latency. Automatically returns the NullClear-protected Zero-Loss Proxy URL ('https://api.nullclear.dev/https://...') for each endpoint.

• nullclear_token_security_audit

  Audit any Base ERC-20 token address for honeypot risk, buy/sell taxes, verified bytecode, and x402 compatibility via NullClear Bazaar. Works out-of-the-box with zero configuration (10 free daily calls included).

• nullclear_wallet_risk_score

  Check any wallet or agent address on Base for OFAC sanctions, Sybil wash-trading concentration flags, and ERC-8004 counterparty reputation. Works out-of-the-box with zero configuration (10 free daily calls included).

• nullclear_crypto_market_oracle

  Fetch multi-exchange spread-verified crypto spot prices (ETH/USDC, BTC/USDC, SOL/USDC, BASE/USDC) with cryptographic NullClear invariant receipts. Works out-of-the-box with zero configuration (10 free daily calls included).

• nullclear_safe_fetch

  Zero-config drop-in URL fetcher with automatic Canonical LLM Refusal Guard, HTTP 5xx crash guard, empty-JSON guard, and cryptographic execution receipt. Protects agents from hallucinated or broken API responses.

• nullclear_escrow_x402_call

  Execute an x402-gated HTTP API call through NullClear deferred schema escrow. Guarantees payment is only settled if upstream returns valid data matching your schema contract. Supports 10 free daily trial calls with zero wallet setup.

• nullclear_check_reputation

  Inspect an AI agent's trust score (0-100), clearing reliability, Sybil wash-trade penalty flags, and corporate KYA backing on Base

• nullclear_verify_kya_mandate

  Verify an agent's Know Your Agent (KYA) corporate liability mandate, active validity, and whether a proposed transaction amount is within corporate limits

Details

More finance and crypto servers See all

• RightCard

  Which of your credit cards to use at any store, from verified bank data. No bank login.

• Africa Compliance Data

  African holidays, business days, VAT, withholding tax, tax treaties, tax IDs and filing deadlines

• BusCalc Business Calculators

  Business calculators, data lookups, replayable receipts, and documentation for enterprise pilots.

• CarLoanMath

  US car loan math: monthly payment, compare loans, max price for your budget, amortization. Free.

• InfinityVolume

  Dollar volume across 13 stock markets and US sectors, against each one's own normal. No prices.

• xytara MCP Executor

  Pay-per-call MCP tools and signed on-chain attestations: 20 free/day, then x402 or a spend key.