Feranor Resilience

What Feranor Resilience MCP server does

The Feranor Resilience MCP server provides MCP tools for two related checks: text safety and web-domain resilience. Text tools identify characters that may be difficult to see or may impersonate other characters, while domain tools assess technical health across TLS, DNS, HTTP headers, and response speed.

Text analysis is non-destructive. A scan returns a risk score, flagged characters, and detected homoglyphs without changing the supplied string. A separate purge operation removes invisible characters, substitutes homoglyphs, normalizes the result, and reports how the risk changed between the original and cleaned versions.

Domain checks have two levels. Score tools provide an overall result, category-level scores, and finding counts, making them suitable for ranking domains or deciding whether a full investigation is needed. Full checks add the individual findings and a prioritized order for remediation.

How it works

The Feranor Resilience MCP server exposes separate tools for individual and batch operations. Text operations accept a string. Domain score and full-report operations accept domains, with batch variants handling up to 100 domains in one request.

The score-only domain tools are intended for triage: they indicate which categories are weaker and how many findings exist, but they do not disclose the findings themselves. The full single-domain report includes a weighted score out of 100, category details, each finding, and suggested remediation priority.

Batch full reports use one payment for the complete request rather than charging separately for every domain. The listed price starts at $0.005 per domain for this batch mode, while an individual full report costs $0.01. Score operations and text scanning are listed as free; text purging costs $0.01 per call.

Tools and capabilities

• text_scan_v1: Detects invisible Unicode characters, homoglyphs, and normalization issues, then returns risk information.
• domain_check_score_v1: Produces a summary score and finding counts for one domain.
• domain_check_score_batch_v1: Produces the same summaries for up to 100 domains.
• domain_check_v1: Returns a detailed report for one domain with prioritized remediation.
• domain_check_batch_v1: Returns detailed reports for up to 100 domains under one batch charge.

Limitations and notes

Score-only domain calls cannot be used to inspect the actual problems; they report counts and category scores rather than individual findings. Use a full report when remediation details are required.

Pricing is stated per operation, with free score and scan calls and paid purge or detailed-report calls.