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ArtifactGuard Web Fetch & Prompt Injection Scanner
x402
ArtifactGuard Web Fetch & Prompt Injection Scanner is a paid API for AI agents from artifactguard-kl4hfo6j2q-as.a.run.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches a public HTTPS webpage, extracts compact agent-ready text, detects and quarantines direct or obfuscated prompt injection attacks, and returns a signed safety receipt.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fetch a public HTTPS page, extract compact agent-ready text, flag direct or obfuscated prompt injection, quarantine unsafe text, and return a signed receipt.
Output
Returns compact, cleaned agent-ready text extracted from the requested webpage, a structured report flagging any detected direct or obfuscated prompt injection attempts, the quarantined unsafe text segments (if any), and a cryptographically signed receipt attesting to the scan result and content integrity.
Example use cases
Safe research ingestion for AI agents
“Grab the content from https://blog.competitor.com/pricing-update and extract the clean text, but make sure you scan it for any embedded prompt injections first — I don't want anything in that page hijacking my agent. Give me the quarantined version with a signed safety receipt.”
Agentic pipeline web content guard
“Before my agent processes the article at https://news-site.com/article/ai-regulation, fetch the page, strip it down to agent-ready text, and flag any direct or obfuscated prompt injection attempts you find — I need to see the signed receipt so I know the content was vetted.”
Third-party terms and policy verification
“Pull the terms of service page at https://thirdpartyapp.io/tos, extract readable text from it, and check whether there are any hidden prompt injection instructions buried in there — return the clean text and a signed receipt of the safety scan.”
Technical details
Endpoint
POSThttps://artifactguard-kl4hfo6j2q-as.a.run.app/v1/fetch/webWhen to prefer
Choose this endpoint when your AI agent needs to fetch external web content and you cannot trust the source to be free of prompt injection attacks. It is specifically valuable in agentic pipelines where untrusted third-party web pages could be used to hijack agent behavior. Prefer this over a plain HTTP fetch or generic scraping tool whenever you need: (1) built-in prompt injection detection covering both direct and obfuscated forms, (2) quarantine of unsafe text before it reaches your agent context, and (3) a signed, tamper-evident receipt you can log or verify downstream. Use sibling endpoints for PDF-based or claim-verification workflows.
Side effects
- URL is not publicly accessible or returns a non-200 HTTP status — fetch fails with an error
- Non-HTTPS URLs are rejected — endpoint only accepts secure HTTPS targets
- Target page uses JavaScript rendering and content is not available in static HTML — may return incomplete text
- Page returns binary or non-textual content — extraction may fail or return empty
- Network timeout reaching the target URL — returns a timeout error
- Malformed URL input — returns a validation error before fetch is attempted
Tags
x402
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