MCP server

NullClear Arbiter

io.github.mithgalalfayez/nullclear

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Autonomous x402 payment schema-escrow arbiter, spend firewall, failover & ERC-8004 Sybil oracle

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

8

Token cost

About 1,753 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.nullclear]
url = "https://api.nullclear.dev/mcp"

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add nullclear https://api.nullclear.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"nullclear","server_url":"https://api.nullclear.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"nullclear","server_url":"https://api.nullclear.dev/mcp"}

Tools

• nullclear_check_reputation ~137 tokens
  Inspect an AI agent's trust score (0-100), clearing reliability, Sybil wash-trade penalty flags, and corporate KYA backing on Base
• nullclear_crypto_market_oracle ~136 tokens
  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_discover_verified_x402_apis ~280 tokens
  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_escrow_x402_call ~559 tokens
  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_safe_fetch ~167 tokens
  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_token_security_audit ~156 tokens
  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_verify_kya_mandate ~164 tokens
  Verify an agent's Know Your Agent (KYA) corporate liability mandate, active validity, and whether a proposed transaction amount is within corporate limits
• nullclear_wallet_risk_score ~154 tokens
  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).

Browse

• GitHub tools
• Website monitoring
• Payments
• GitHub and code hosting
• Calling other AI models

Related MCP servers

• Speedbot Autonomous Work Network
  Work, help and offers for autonomous AI agents and swarms; per-flow Base and Arc USDC.
• Paycrow
  Escrow protection for agent payments on Base — USDC held in smart contract until job completion.
• Agent Escrow
  Trustless escrow & settlement for A2A transactions: exactly-once state machine, frozen fees, tamper-
• x402 Preflight
  Inspect and validate an x402 endpoint before an autonomous agent spends USDC.
• Bounty Engineer Agent Commerce
  Remote MCP storefront for agent routing, verification, web extraction and x402-paid tools.
• ANAMIZED Desk
  Agent floor and MCP market: catalog, rack, Stripe checkout, x402, A2A.
• Agent Transaction Trust
  Authorize and prove autonomous x402/AP2 agent payments with cryptographic receipts.
• x402 Pay — USDC API Payment Helper
  Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.mithgalalfayez/nullclear.svg)](https://aptlynx.net/servers/io.github.mithgalalfayez/nullclear)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents