bots.st/prescan
Prescan
Scans prompts and tool schemas for injection risk
627 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 6
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://prescan.canisell.xyz/mcp
What it can do
| Tool | What it says it does |
|---|---|
about | Free. What Prescan does, prices of the paid tools and HTTP endpoints, and links to docs. |
check_x402_endpoint | Is this x402 endpoint safe to pay? Fetches its 402 terms with one GET (never pays) and checks: payTo validity and EIP-55 checksum, zero/token-contract/OFAC-sanctioned payTo, asset is canonical USDC for the network, amount vs your budget, price vs the price advertised in its OpenAPI and on… |
list_rules | Free. The detection categories, rule counts and thresholds used by scan_text and scan_tools. |
preview_scan_text | Free. Prompt-injection pre-check for up to 1000 characters: verdict (safe/suspicious/malicious), score, categories and rule ids. For spans, a sanitized copy, long texts or batches use scan_text (paid). |
scan_text | Prompt-injection pre-check for text your agent is about to read (tool output, web page, email, document, token names/metadata). Deterministic rules, no LLM: instruction override (EN/DE/FR/ES/IT/PT/PL/RU), role hijack, jailbreaks, system-prompt extraction, fake chat delimiters, text addressed to… |
scan_tools | Tool-poisoning scan of MCP tool definitions (a tools/list result) or function schemas before your agent connects or calls them: hidden <IMPORTANT> instructions, cross-tool shadowing, side-channel parameters that ask for file/conversation contents, recipient/payee overrides, instructions hidden in… |
In its maker's words
Agent security pre-checks: prompt-injection scan, MCP tool-poisoning scan, x402 endpoint check.
- Website
- prescan.canisell.xyz
- Publisher
- canisell.xyz (3 listings in the registry)
- Listed from
- the official MCP Registry as
xyz.canisell/prescan - Version
- 0.1.0, updated 2 Nov 2026
- Kinds of work
- Security and trust, AI models and agent tools
The domain it lives on
- canisell.xyz
- registered 1 Nov 2026 (1 months ago), at Porkbun LLC, its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 627 ms | |
| Answered | 2530 ms | |
| Answered | 1136 ms |
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