Directory / toolbelt402.tpoborne.workers.dev
Parse and validate a cron expression — returns the next N run times as ISO timestamps in any IANA timezone. Cron schedule checker.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://toolbelt402.tpoborne.workers.dev/cron/next' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://toolbelt402.tpoborne.workers.dev/cron/next'
Endpoint: https://toolbelt402.tpoborne.workers.dev/cron/next. Operated by toolbelt402.tpoborne.workers.dev, not by Animica. Price and availability were correct at the last probe on 2026-08-29 and are set by the operator, who may change them.
Parse CSV into JSON rows — auto-detects the delimiter, handles quoted fields and headers, optional type coercion. Returns columns, row count, and per-row parse …
Encode or decode text: base64, base64url (padding handled), hex, URL percent-encoding, and HTML entities. The conversions agents most often get wrong.
Hash a string or bytes with multiple algorithms in one call: SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, and keccak-256 (Ethereum). Input as UTF-8, base64, or h…
Convert HTML to clean Markdown — turn scraped web pages into LLM-ready text. Handles headings, lists, tables, links, code blocks. Deterministic, no LLM.
Structural diff of two JSON documents — add/remove/change operations with JSON-Pointer paths, before/after values, and an identical flag. Compare API responses …
Query JSON with a JMESPath expression — extract, filter, project, and reshape nested data with the AWS-standard query language. Deterministic JSON extraction.
Fix invalid, malformed, or truncated JSON — repairs trailing commas, single quotes, unquoted keys, and cut-off LLM output; returns the parsed object plus correc…
Convert an array of JSON objects into CSV — column union across rows or explicit column order; nested values are JSON-stringified into cells.
Validate JSON data against a JSON Schema (draft-07, 2019-09, 2020-12) — returns exact error locations, keywords, and messages for programmatic handling. Determi…
Decode a JWT — header, payload, and timing analysis (issued/not-before/expiry as ISO timestamps, expired flag, seconds until expiry). Decode only; signature is …
Render Markdown to HTML — CommonMark with autolinking; raw HTML in the input is escaped, not executed. The inverse of /html/to-markdown.
Test and debug a regular expression against up to 50 sample strings — real match results, capture groups, named groups, and pass/fail against expectations. Dete…