All servers · Markets & trading · Payments & accounting

Collar Guardrail — Pre-Trade Risk Layer

io.github.aiguardrail/backend · v1.0.5

Measured by MCP Station

Description written by the publisher, not verified

Deterministic pre-trade risk checks for AI agents on Robinhood Chain. Returns allow/warn/deny.

Connect

claude mcp add --transport http backend https://api.collarguardrail.com/mcp-http/mcp

{
  "mcpServers": {
    "backend": {
      "url": "https://api.collarguardrail.com/mcp-http/mcp"
    }
  }
}

Tools as reported by the server

• evaluate_trade
  Pre-trade risk check for a proposed trade. Call this BEFORE executing any trade and treat a "deny" decision as a hard stop. Evaluated at a fixed Tier 1 ceiling ($5,000 notional). For higher limits, use `evaluate_trade_paid` (Tier 2, $25,000) which settles an x402 payment on-chain.
• evaluate_trade_paid
  Pre-trade risk check gated by an x402 payment. Evaluated as COLR Tier 2: $25,000 notional ceiling, 10/25 per-minute rate limits. No COLR holdings are required — the on-chain payment is the credential. FLOW ---- 1. Call WITHOUT payment_proof → the tool returns a `PaymentRequiredOutput` describing the
• check_token_safety
  Honeypot / contract safety check for any ERC-20 token. Returns a severity classification (safe / warn / danger), the specific risk factors detected, and the result of a simulated sell. When severity=danger, the next `evaluate_trade` for the same contract is automatically denied regardless of any oth
• simulate_balance
  Simulate a wallet's ERC-20 balance after a hypothetical trade using eth_call state override. Read-only: no transaction is ever sent.
• get_supported_assets
  List every asset in the guardrail's official Robinhood Chain registry, with its canonical contract address.
• verify_audit_trail
  Verify the tamper-evident audit trail for a wallet's past guardrail decisions.

Repository · Website · JSON · Text for agents · Registry updated 2026-10-06