Skip to content
Feranor logo

Feranor MCP server

Which servers in the official MCP registry are Feranor's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-21

← Back to Feranor

Whose server it is
  • Registry namecom.feranor/resilienceverified in the MCP registry

The registry name sits under feranor.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools6
  • Server calls itselfcom.feranor/resilience
  • Server version1.1.4
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 168 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • Keep approval on for text_purge_v1: they delete, send or pay without saying so.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-10-21
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer682 ms
  • Space in an agent's context≈ 1,353 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results6 of 6 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

Worth a look

  • Tools that delete, send or pay without telling the client so: text_purge_v1

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-21
  • text_purge_v1

    Removes invisible Unicode characters and replaces homoglyphs in a text string. Returns the cleaned text plus a before-and-after comparison. Use this tool after text_scan_v1 to fix flagged issues. Price: $0.01 per call (x402, USDC on…

  • domain_check_batch_v1

    Runs the full resilience check on up to 100 domains in a single call and returns the same scored report for each one: TLS certificate, security headers, DNS redundancy, response time, with every individual finding. Use it to audit a…

  • domain_check_v1

    Measures how resilient a public web domain is from the outside and returns a weighted score out of 100, a per-category breakdown, and prioritised findings explaining what to fix first. Use it to audit a domain you do not control, to…

  • domain_check_score_v1

    Free. Returns the overall resilience score out of 100 for a public web domain, plus the score of each category and how many findings each one raised. Use it to triage: to rank a list of domains, to confirm a domain is healthy, or to…

  • text_scan_v1

    Free. Scans a text string for invisible Unicode characters, homoglyphs, and normalization issues. Returns a risk score and a detailed report. Use this tool before text_purge_v1 to inspect suspicious content. Free, no payment required.

  • domain_check_score_batch_v1

    Free. Returns the overall resilience score out of 100 for up to 100 public web domains, plus the score of each category and how many findings each one raised. Use it to triage a portfolio: rank a list of domains, confirm which ones are…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "resilience": {
      "type": "http",
      "url": "https://www.feranor.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http feranor https://www.feranor.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://www.feranor.com/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.