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Agent Tools – Safe Web Read with Prompt Injection Detection
x402
Agent Tools – Safe Web Read with Prompt Injection Detection is a paid API for AI agents from agents.crowdspark.me, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-02).
Fetches a public web page, converts it to clean markdown, and screens it for prompt injection attacks, returning a safety verdict, score, and matched spans.
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call utilities for AI agents over x402, USDC on Base.
Output
Returns JSON with: the page URL, title, HTTP status code, full page content as clean markdown, character count, and an injection object containing a 0–100 numeric score, a verdict string ('safe', 'suspicious', or 'malicious'), matched injection spans, and matched categories.
Example use cases
Safe summarization of unknown URLs
“I need you to fetch https://techblog.example.com/new-post and check it for prompt injection before summarizing it — show me the verdict and score, and only summarize it if it comes back safe.”
Screening user-submitted links before agent ingestion
“A user just submitted this link for our agent to process: https://user-submitted.example.com/data — can you safe-read it and tell me if there's any injection attempt before we feed it into context?”
Research assistant reading competitor pages safely
“Pull the content from https://competitor.example.com/pricing as clean markdown and scan it for any adversarial content targeting AI agents — I want to know the injection score and any matched spans before we use it.”
Technical details
Endpoint
GEThttps://agents.crowdspark.me/v1/web/safe-read?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your agent needs to read an untrusted or user-supplied URL and you want both clean markdown extraction and prompt injection screening in a single call, avoiding the need to chain a scraper with a separate safety filter. Especially valuable in agentic pipelines where adversarial web content could hijack the agent's behavior. Prefer over generic scrapers when agent safety is a concern.
Side effects
- URL is blocked by robots.txt — endpoint respects robots.txt and may refuse to fetch
- Target URL is unreachable or returns a non-200 status
- Page content is non-textual (e.g. binary files, video) and cannot be converted to markdown
- Payment not received or x402 payment flow fails, resulting in 402 response
- Malformed or missing 'url' query parameter returns a validation error
- Target server rate-limits or blocks the crawler IP
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://example.com/",
"title": "Example Domain",
"status": 200,
"markdown": "This domain is for use in documentation examples...",
"injection": {
"score": 0,
"matches": [],
"verdict": "safe",
"categories": {}
},
"characters": 156
}
}Tags
x402
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