Collar Guardrail — Pre-Trade Risk Layer
Deterministic pre-trade risk checks for AI agents on Robinhood Chain. Returns allow/warn/deny.
Connect it
Settings → Connectors → Add custom connector
URL: https://api.collarguardrail.com/mcp-http/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://api.collarguardrail.com/mcp-http/mcp{
"mcpServers": {
"backend": {
"url": "https://api.collarguardrail.com/mcp-http/mcp"
}
}
}claude mcp add --transport http backend https://api.collarguardrail.com/mcp-http/mcp{
"servers": {
"backend": {
"type": "http",
"url": "https://api.collarguardrail.com/mcp-http/mcp"
}
}
}6 tools, verified live
evaluate_traderead-onlyPre-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_paidread-onlyPre-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 â the on-chain payment is the credential. FLOW ---- 1. Call WITHOUT payment_proof â the tool returns a `PaymentRequiredOutput` describing the on-chain payment (network, asset, amount, payTo, resource). 2. Settle the payment on-cha
check_token_safetyread-onlyHoneypot / 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 other checks. This is a heuristic bytecode + simulation check, not a formal audit. Use it before trad
simulate_balanceread-onlySimulate a wallet's ERC-20 balance after a hypothetical trade using eth_call state override. Read-only: no transaction is ever sent.
get_supported_assetsread-onlyList every asset in the guardrail's official Robinhood Chain registry, with its canonical contract address.
verify_audit_trailread-onlyVerify the tamper-evident audit trail for a wallet's past guardrail decisions.
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