https://penniless-json-repair.sjaman.workers.dev - Penniless Data Utilities

Ten paid endpoints over x402 v2 on Base (eip155:8453), payTo 0x3D98800c64C345950E1eAaa076D88C12d1BF5F37.
Pure-compute routes cost $0.005 USDC; network-backed routes cost $0.02 USDC.

MCP (streamable HTTP): https://penniless-json-repair.sjaman.workers.dev/mcp - the same ten tools and per-tool prices.

Paid:
  POST /repair/json  $0.005 USDC  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}.
  POST /yaml/tojson  $0.005 USDC  Converts YAML 1.2 core syntax (maps, sequences, nested structures, scalar values, comments, anchors/aliases) into JSON with bounded alias expansion. Body {input} -> {ok, value, warnings}.
  POST /cron/nextrun  $0.005 USDC  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}.
  POST /diff  $0.005 USDC  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}.
  POST /text/extract  $0.005 USDC  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}.
  POST /domain/whois  $0.02 USDC  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}.
  POST /dns/lookup  $0.02 USDC  JSON DNS-over-HTTPS lookup for A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, SRV, CAA. Body {domain, type?} -> {ok, domain, type, status, answers[]}.
  POST /github/repo-stats  $0.02 USDC  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}.
  POST /price/crypto  $0.02 USDC  Live USD prices for ETH, BTC, USDC, SOL from CoinGecko (30s cache). Body {symbols: ['eth','btc','usdc','sol']} -> {ok, source, prices: {eth:{usd}, btc:{usd}, ...}}.
  POST /email/validate  $0.02 USDC  Email domain validation: RFC-style unquoted syntax plus a live MX probe. It checks whether the domain advertises mail reception; it does not verify that a mailbox exists. Body {email} -> {ok, valid, formatValid, domainHasMx, mx[]}.

Free:
  POST /diagnose      {input}      -> {parsesNow, problems[]}   JSON problem classifier

Payment discovery:
  x402 v2:      https://penniless-json-repair.sjaman.workers.dev/.well-known/x402