Discover / canaryguard-402.onrender.com

CanaryGuard 402

■ Challenge detected

Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands before context ingestion.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 5 of the last 5 checks
Median response: 270 ms
Last checked: 17 Oct, 07:50 UTC
In our index since: 10 Oct 2026

Endpoint

curl -i https://canaryguard-402.onrender.com/v1/sanitize
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

29 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://canaryguard-402.onrender.com/v1

POST/security/mcp-tool-poisoning-audit$0.02Inspects Model Context Protocol (MCP) tool definitions, descriptions, and JSON schemas for hidden prompt overrides, shadowing attacks, and exfiltration sinks.
POST/crypto-price-onchain$0.008Returns tamper-resistant on-chain USD spot prices, 24h volatility, and Chainlink/TWAP oracle deviation metrics for major Base and EVM assets.
POST/url-agent-readiness$0.009Audits any domain or URL for AI agent readiness (llms.txt, .well-known/x402, openapi.json, MCP server card) and detects hidden CSS/DOM prompt-injection traps.
POST/tx-status-base$0.008Decodes Base Mainnet transaction receipts, EIP-3009 transferWithAuthorization settlements, ERC-20 transfer logs, gas fees, and finality confirmations.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 4 of 29 listed endpoints. First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/canaryguard-402.onrender.com

Recent checks

10 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 5 checks

When (UTC)	Result	HTTP	Response
17 Oct, 07:50 UTC	Challenge detected	402	349ms
15 Oct, 23:42 UTC	Challenge detected	402	294ms
14 Oct, 17:17 UTC	Challenge detected	402	147ms
12 Oct, 15:35 UTC	Challenge detected	402	144ms
10 Oct, 21:52 UTC	Challenge detected	402	270ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 07:50 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for CanaryGuard 402?

Its listed price is $0.01.

What payment terms does CanaryGuard 402 advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is CanaryGuard 402 listed?

In x402 Bazaar. Superstables first indexed it on 10 Oct 2026.

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