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Collar Guardrail — Pre-Trade Risk Layer

Deterministic pre-trade risk checks for AI agents on Robinhood Chain.

Connector by aiguardrail · GitHub account verified by the MCP Registry

IndexedMITRemote (HTTP)
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Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/aiguardrail-backend

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://api.collarguardrail.com/mcp-http/mcp Remote (HTTP)

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About

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

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
6 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
Nothing to install (hosted)
Runs as
Hosted (remote endpoint)

Tools by what they do 6

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 6 · Look things up without changing anything.

  • check_token_safety
  • evaluate_trade
  • evaluate_trade_paid
  • get_supported_assets
  • simulate_balance
  • verify_audit_trail

Network hosts it talks to 1

  • api.collarguardrail.com · found in remote endpoint, install command

Tools (6)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • check_token_safetyCheck Token Safetyread-only

    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 other checks. This is a heuristic bytecode + simulation check, not a formal audit. Use it before trading unknown tokens, memecoins, or any contract that is absent from the official Robinhood Chain registry. It is safe to call repeatedly; no transaction is ever sent.

  • evaluate_tradeEvaluate Trade (Free)read-only

    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_paidEvaluate Trade (x402 Paid, Tier 2)read-only

    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 on-chain payment (network, asset, amount, payTo, resource). 2. Settle the payment on-chain using an x402-capable client. The facilitator returns a proof string. 3. Call again with `payment_proof=<proof>` → the tool forwards the proof to the guardrail's x402-paid endpoint and returns a …

  • get_supported_assetsGet Supported Assetsread-only

    List every asset in the guardrail's official Robinhood Chain registry, with its canonical contract address.

  • simulate_balanceSimulate Balanceread-only

    Simulate a wallet's ERC-20 balance after a hypothetical trade using eth_call state override. Read-only: no transaction is ever sent.

  • verify_audit_trailVerify Audit Trailread-only

    Verify the tamper-evident audit trail for a wallet's past guardrail decisions.

Signals

Stars
0
Forks
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Open issues
0
Last commit
Oct 6, 2026 (22 days ago)
Last release
Oct 6, 2026 (22 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.aiguardrail/backend
Version
1.0.5
Auth
Auth not stated
License
MIT
Repository
github.com/aiguardrail/backend-mcp
Website
collarguardrail.com
First seen
Oct 24, 2026
Last checked
Oct 25, 2026
Source
Official MCP Registrygithub-graphql
Cite this page

Collar Guardrail — Pre-Trade Risk Layer MCP server. Agent Mart. https://agentmart.dev/connectors/aiguardrail-backend (last updated 2026-10-25)