Penniless Data Utilities MCP server

• cron_next_runwrite actionFree

  Computes the next UTC fire time for a 5-field cron expression (supports steps, ranges, lists, and month/weekday names). Body {expr, after?} -> {ok, next, epochMs}. Costs $0.001 USDC on Base per call.

• dns_lookupFree

  JSON DNS-over-HTTPS lookup for A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, SRV, CAA. Body {domain, type?} -> {ok, domain, type, status, answers[]}. Costs $0.001 USDC on Base per call.

• domain_whoisFree

  Structured WHOIS via RDAP for any domain: registrar, IANA id, statuses, expiry/registration dates, nameservers, DNSSEC. Body {domain} -> {ok, found, domain, registrar, status[], events{}, nameservers[], dnssec}. Costs $0.001 USDC on Base per call.

• email_validatewrite actionFree

  Email deliverability check: RFC-style syntax plus live MX probe of the domain. Body {email} -> {ok, valid, formatValid, domainHasMx, mx[]}. Costs $0.001 USDC on Base per call.

• github_repo_statsFree

  Popularity and metadata for any public GitHub repo: stars, forks, open issues, watchers, language, license, topics, last push. Body {repo} -> {ok, found, stars, forks, openIssues, language, license, pushedAt}. Costs $0.001 USDC on Base per call.

• repair_jsonFree

  Repairs malformed LLM JSON: strips Markdown fences and prose wrappers, fixes trailing commas, converts Python literals (True/False/None) and single/unquoted keys, removes comments, recovers balanced JSON from truncated output. Body {input} -> {ok, repaired, applied}. Costs $0.001 USDC on Base per call.

• text_diffFree

  Produces a unified diff plus added/removed counts between two texts (LCS line diff, configurable context lines). Body {old, new, context?} -> {ok, identical, added, removed, hunks, unified}. Costs $0.001 USDC on Base per call.

• text_extractFree

  Extracts clean text, title, headings, links, URLs, and emails from HTML or plain text. Body {input, numbers?, codeBlocks?} -> {ok, source, title, headings, links, urls, emails, text}. Costs $0.001 USDC on Base per call.

• yaml_to_jsonFree

  Converts a YAML subset (block maps, sequences, nested indentation, scalars, comments) into JSON with no runtime dependency. Body {input} -> {ok, value, warnings}. Costs $0.001 USDC on Base per call.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1616ms20/20
• Tool poisoning9 tool descriptions checked15/15
• Auth qualityopen endpoint exposes 2 write-action tools with no auth3/15
• Maintenancelast push 2 days ago15/15
• Maintainer identityregistry namespace matches repository owner6/10

Penniless Data Utilities: common questions

Is Penniless Data Utilities MCP server safe?

Mostly: it is graded B (79/100). Read the Penniless Data Utilities safety report

How do I install Penniless Data Utilities?

It runs remotely at penniless-json-repair.sjaman.workers.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Penniless Data Utilities need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Penniless Data Utilities maintained?

The last commit was 3 days ago (2026-09-17). The latest release is v3.1.0.

Is Penniless Data Utilities up?

100% of our last 2 checks got an answer. We check remote servers about four times a day.

What can I use instead of Penniless Data Utilities?

Servers from other publishers that do the same job: OpenOSINT MCP server, Apixies Developer API Suite MCP server and Netintel MCP server. Compare all Penniless Data Utilities alternatives.