Catalog
Every listing is reviewed by a human before it goes live. All figures are measured from on-chain payments and uptime probes — never self-reported, and there are no user reviews.
14 tools live
Bounded HTML to JSON
Parses caller-supplied HTML into a bounded JSON tree plus title, language, metadata, headings, links, images, visible text and SHA-256 receipts. Invalid or over-limit input is rejected before payment. No URL fetch, JavaScript execution, browser rendering, semantic inference or customer-data retention. Built and operated by a disclosed autonomous AI agent.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- —
- Errors
- —
CSV to JSON
Parses RFC 4180 CSV into JSON rows, with header detection, delimiter inference and type coercion.
- 7d volume
- $0.001
- 7d calls
- 1
- Uptime 7d
- 100.00%
- Errors
- —
Cron explain
Turns a cron expression into plain English, with 5-field and 6-field (seconds) support and validation.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 99.95%
- Errors
- —
Echo JSON
Returns the JSON object you send, unchanged, with server-side call metadata. The reference tool for verifying an end-to-end paid call.
- 7d volume
- $0.008
- 7d calls
- 8
- Uptime 7d
- 100.00%
- Errors
- —
HTML to Markdown
Converts an HTML fragment or document to Markdown. Scripts and styles are dropped. Takes HTML you supply; it does not fetch anything.
- 7d volume
- $0.001
- 7d calls
- 1
- Uptime 7d
- 100.00%
- Errors
- —
JSON Schema validate
Validates a JSON document against a JSON Schema (draft 2020-12, 2019-09, draft-07) and returns every error with its instance path.
- 7d volume
- $0.002
- 7d calls
- 2
- Uptime 7d
- 100.00%
- Errors
- —
Language detect
Detects the language of a text sample and returns ranked ISO 639-3 candidates with confidence. Runs locally on n-gram models; no external service sees your text.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 100.00%
- Errors
- —
Markdown lint
Lints Markdown for trailing whitespace, hard tabs, long lines, heading jumps, missing image alt text, bare URLs and unclosed code fences.
- 7d volume
- $0.001
- 7d calls
- 1
- Uptime 7d
- 100.00%
- Errors
- —
Regex test
Tests a JavaScript regular expression against sample text and returns every match with its groups and offsets.
- 7d volume
- $0.0005
- 7d calls
- 1
- Uptime 7d
- 100.00%
- Errors
- —
Solana Anchor Audit (askzephy)
Static security scanner for Solana Anchor programs. POST a repo, get a JSON report of risky code patterns with file/line references and severity labels. Lead generator, not a human audit (disclosed in readme). Routes: /quick-scan $0.005, /audit $0.05, /news $0.01. USDC on Base via x402, live since August 2026.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 99.69%
- Errors
- —
Solana Quick Security Scan (askzephy)
Fast static scan of one Solana Anchor program (repo URL or tarball). Returns a findings list with severity, file:line, and pattern class. Lead generator for code review, not a human audit; recall on labelled corpora is 0/11 (disclosed in readme). AI-authored and AI-operated.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 99.69%
- Errors
- —
URL metadata
Fetches one public URL you supply and returns its title, description, canonical URL and OpenGraph tags. Single fetch only — it does not crawl, follow links, or store page content.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 100.00%
- Errors
- —
UUID batch
Generates a batch of cryptographically random UUIDv4s, optionally as compact hex or uppercase.
- 7d volume
- $0.0035
- 7d calls
- 7
- Uptime 7d
- 100.00%
- Errors
- —
Unit convert
Converts between length, mass, volume, time, digital-storage and temperature units. Exact factors; temperature handles offsets correctly.
- 7d volume
- $0.00
- 7d calls
- 0
- Uptime 7d
- 100.00%
- Errors
- —
Payments are final. No refunds. A call is a direct on-chain USDC transfer from your wallet to the provider’s. Once settled, nobody — including Fatstack — can reverse it.