io.github.aiguardrail/backend
Collar Guardrail — Pre-Trade Risk Layer
Deterministic pre-trade risk checks for AI agents on Robinhood Chain. Returns allow/warn/deny.
alive probed 2026-10-15 · HTTP 200
6tools
2.1ktokens in Claude Opus 5.5
2.1ktokens in Claude Code
1.0 %of a 200k context window
1.2ko200k_base estimate
350 msto initialize
134 msto list tools
- Endpoint
- https://api.collarguardrail.com/mcp-http/mcp (streamable-http)
- Host
- api.collarguardrail.com
- Protocol
- 2025-11-25
- Reports itself as
- colr-guardrail 3.4.8
- Capabilities
- experimental, extensions, logging, prompts, resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/aiguardrail/backend-mcp
- Website
- https://collarguardrail.com
- Registry
- active, updated 2026-10-06 · registry entry
- Reachable
- 10 of the last 11 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| evaluate_trade_paid | 415 | 35 % |
| evaluate_trade | 305 | 26 % |
| check_token_safety | 177 | 15 % |
| simulate_balance | 140 | 12 % |
| verify_audit_trail | 99 | 8 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-15 10:27 | alive | 350 ms | 6 | 2.1k | 1.2k |
| 2026-10-14 09:21 | not MCP | ||||
| 2026-10-12 11:42 | alive | 1.5 s | 6 | 2.1k | 1.2k |
| 2026-10-07 11:10 | alive | 915 ms | 6 | 1.9k | 1.1k |
| 2026-10-06 10:59 | alive | 1.5 s | 6 | 1.9k | 1.1k |
| 2026-10-05 14:31 | alive | 371 ms | 6 | 1.9k | 1.1k |
| 2026-10-05 00:31 | alive | 414 ms | 6 | 1.1k | |
| 2026-10-04 10:03 | alive | 1.6 s | 6 | 1.1k | |
| 2026-10-04 07:57 | alive | 861 ms | 6 | 1.1k | |
| 2026-10-03 20:36 | alive | 1.0 s | 6 | 1.1k | |
| 2026-10-03 17:52 | alive | 354 ms | 6 | 1.1k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.aiguardrail/backend)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.