markedet prompt-injection check

https://prompt-injection-check.onrender.com/check

● down utility

Check up to 20 untrusted texts (web pages, emails, tool output) for prompt injection before your agent reads them: verdict, intent labels and exact spans with offsets. $0.005 per text. Free trial: POST /try/check (3 per day). Free known-answer selftest at GET /selftest.

Paid verification

How it works

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

E 10.0 / 100 capped at D while down

Availability 0.0 / 40

Endpoint did not respond

Payability 10.0 / 20

✗ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 0.0 / 40

0 distinct payers, 0 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 20 h ago. On-chain activity last read 18 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

3 resource(s) advertised by this origin.

POST https://prompt-injection-check.onrender.com/check

POST https://prompt-injection-check.onrender.com/fetch-check

Fetch up to 10 public https pages and check each for prompt injection in one call. Per URL: status, title, clean markdown, verdict safe, suspicious or injection, score, intents and evidence spans with offsets, plus safe_markdown with flagged sentences removed. Hidden HTML (display:none, aria-hidden,

POST https://prompt-injection-check.onrender.com/skill-check

Static permission report for an agent skill pack (SKILL.md plus scripts). Per finding, with file and line: network destinations, files and paths read, written or deleted (~/.ssh, ~/.aws, .env, wallets), secrets and env vars read, shell commands and installs (curl|sh, sudo, rm -rf), hidden and base64

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X POST https://prompt-injection-check.onrender.com/check  # expect HTTP 402 Payment Required (about 0.005 USDC/call)

/.well-known/x402.json

https://prompt-injection-check.onrender.com/.well-known/x402

Listed in

Directories this entry was found in.

submission x402scan