Name: homoglyph-check
Price: 0.003 USDC
Availability: InStock

$ man homoglyph-check

agentutility / web-probe / homoglyph-check

PRICE / CALL

$0.003

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

webprobe

CATEGORY

utilities

STATUS

● live

NAME

homoglyph-check — detects unicode lookalike characters that impersonate ascii latin letters, a common phishing-domain trick

SYNOPSIS

POST https://x402.agentutility.ai/homoglyph-check
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Detects Unicode lookalike characters that impersonate ASCII Latin letters, a common phishing-domain trick. Scans text (typically a domain, email, or username) for Cyrillic / Greek / fullwidth / mathematical lookalikes plus zero-width and RTL-override / bidi-control characters. Returns per-character findings (codepoint, block, impersonates), block counts, mixed-script flag, ASCII-folded normalized form, and a 0-100 risk score with bucket. Use it as a homoglyph detector, Unicode lookalike scanner, IDN spoof check, phishing-domain inspector, typosquat detector, mixed-script analyzer, or zero-width-char finder.

INPUT — request schema

property	type	description	req?
text	string	Input string to scan (domain, email, username, or arbitrary text). UTF-8, max ~10k chars.	required

OUTPUT — response shape

field	type	description
text	string	Original input string that was scanned for homoglyphs and invisible characters.
text_length	number	Character count of the input string.
homoglyph_findings	array	Array of detected lookalike characters with position, script (Cyrillic/Greek/etc), and ASCII equivalent.
homoglyph_count	number	Total number of homoglyph characters found in the input.
invisible_findings	array	Array of zero-width, invisible, or RTL-override characters detected, with positions and codepoints.
invisible_count	number	Total number of invisible or zero-width characters found.
block_counts	object	Map of Unicode block names to character counts (e.g. Latin, Cyrillic, Greek).
has_mixed_scripts	boolean	True if the input mixes multiple writing scripts, a common phishing signal.
ascii_only	boolean	True if every character is plain ASCII with no Unicode lookalikes possible.
normalized	string	ASCII-folded form of the input with homoglyphs mapped back to their Latin equivalents.
is_suspicious	boolean	True if the input shows signs of a homoglyph or invisible-character attack.
risk_score	number	Phishing risk score from 0 (safe) to 100 (highly suspicious) based on findings.
risk_level	string	Categorical risk bucket such as low, medium, high, or critical.

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/homoglyph-check \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the homoglyph-check tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: homoglyphunicodephishingsecuritydomainspoofing
methods: POST
cluster: webprobe
price: $0.003 USDC per call

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