x4PayAPI Market

Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible

Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible unicode, and exfil links. Returns risk, findings, sanitized text. Prefer POST with JSON body.

1 route settlement-verified · $0.002 USDC/request · 1 endpoint · Data · base network · x402 protocol

Verified routes

Other routes are unverified.

Networks: Base (settlement-verified)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

Listing facts

Provider
Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible
Hosted at
promptshield-x402.frehenda.workers.dev
Category
Data
Price
$0.002 USDC per request
Payment networks
Base
Settlement-verified
1 route, last checked 2026-11-06
Listed on PayAPI Market
2026-11-06

Try Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible

Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.

curl -i -X POST "https://promptshield-x402.frehenda.workers.dev/v1/screen"

About this API

Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible is listed in the Data category with pricing at $0.002 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-11-06. View receipt on Basescan.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 1 endpoint.

Add this badge to your README

Paste this on your site. The link points at this listing. Listing is free and providers keep 100%.

Settlement-verified on PayAPI Market

Markdown

[![Settlement-verified on PayAPI Market](https://payapi.market/badge/screen-untrusted-text-html-for-prompt-injection-hidden-instructions-invisible.svg)](https://payapi.market/api/screen-untrusted-text-html-for-prompt-injection-hidden-instructions-invisible)

HTML

<a href="https://payapi.market/api/screen-untrusted-text-html-for-prompt-injection-hidden-instructions-invisible"><img src="https://payapi.market/badge/screen-untrusted-text-html-for-prompt-injection-hidden-instructions-invisible.svg" alt="Settlement-verified on PayAPI Market" height="20"></a>

What this badge means

Questions about this API

What does Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible do?

Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible unicode, and exfil links. Returns risk, findings, sanitized text. Prefer POST with JSON body. It is provided by Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible.

How much does Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible cost?

Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible is priced at $0.002 USDC per request, paid per call with no subscription. Verified with a $0.002 test payment on 6 Nov 2026. The exact amount for each call is in the HTTP 402 response before any money moves.

Do I need an API key or account to use Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible?

No. Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.

Has Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible been verified?

Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-11-06.

How does an AI agent find Screen untrusted text/HTML for prompt-injection, hidden instructions, invisible?

Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.

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