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FHI MCP Security Monitoring
x402
FHI MCP Security Monitoring is a paid API for AI agents from polished-truth-c514.fhi-llc-1118.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Provides stateful security monitoring for remote MCP (Model Context Protocol) endpoints, tracking and evidencing changes via a chat-completion-style API with per-call micropayments.
Price / call$0.005
Success—
StatusUnknown
How this service works
Stateful remote-MCP change evidence, payable per call with x402 Base USDC.
Output
A chat completion response in OpenAI-compatible format containing an assistant message with change evidence, security findings, or monitoring status for the queried MCP endpoint, along with a finish reason indicating how the response concluded.
Example use cases
MCP tool definition drift detection
“I need to check if any of our remote MCP tool definitions have changed since yesterday — run a security monitoring query against the FHI MCP monitor with a message asking for change evidence, max 512 tokens.”
Audit MCP server for unauthorized changes
“Can you call the FHI MCP Security Monitoring service to get an audit report of any unauthorized or unexpected state changes on our MCP server endpoint? Use temperature 0 for a deterministic response.”
Continuous MCP integrity verification
“Set up a check using FHI MCP Security Monitoring to verify the integrity of our remote MCP server — send it a status probe message with 128 max tokens and tell me if anything looks tampered with.”
Technical details
Endpoint
POSThttps://polished-truth-c514.fhi-llc-1118.workers.dev/v1/chat/completions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need stateful, evidence-based security monitoring specifically for remote MCP (Model Context Protocol) servers and want per-call micropayment pricing via x402/Base USDC rather than a subscription. Best suited for AI agent pipelines that need to periodically verify MCP tool integrity and capture change evidence.
Side effects
- Payment not included or insufficient USDC — 402 Payment Required response
- Messages array is empty (minItems:1 violated) — 400 validation error
- max_tokens or max_completion_tokens outside 16-512 range — 400 validation error
- temperature outside 0-2 range — 400 validation error
- Cloudflare Worker timeout on stateful monitoring operations
- Malformed JSON body — 400 parse error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | |
| tools | array | |
| messages | array | |
| max_tokens | integer | |
| temperature | number | |
| tool_choice | — | |
| max_completion_tokens | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-example",
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "..."
},
"finish_reason": "stop"
}
]
}
}Tags
x402
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