402utils

Endpoints (96 live)

• GET /v1/phone-check — Validate and normalize a phone number with full Google libphonenumber metadata: strict validity against each national numbering plan, E.164 / international / national formats, country detection (correct across shared codes like +1 and +44) and line type (mobile, fixed_line, toll_free, voip…) where the plan distinguishes it. Pass ?country=FR to parse national formats. Local. ?attest=1 → Ed25519-signed. (0.002 USDC on Base)
• POST /v1/yaml — Convert between YAML and JSON in one call. to:"json" parses a YAML document (config files, docker-compose, Kubernetes manifests, CI pipelines) into a plain JSON value; to:"yaml" renders any JSON value as clean block-style YAML. Hardened: safe core schema (tags like !!js/function never execute), alias bombs rejected, one document per call, parse errors return line/column. YAML input up to 2 MB UTF-8. (0.001 USDC on Base)
• GET /v1/x402-quote — Enriched quote for an x402 endpoint: probes it unpaid (never pays, SSRF-checked), decodes {price, asset, network, payTo}, then compares the USD price against the live Bazaar market for its category → {marketContext:{category, medianForCategory, cheaperThanMarket}}. Not just how much, but whether it's fair. Market context is best-effort; the decoded quote returns even if the Bazaar read fails. Neutral — our own endpoints are never featured. (0.002 USDC on Base)
• POST /v1/json-to-csv — Convert a JSON array of objects into a clean RFC 4180 CSV: header row, CRLF records, correct quoting and quote-doubling. Nested objects flatten to dot-notation columns (a.b.c), arrays are JSON-encoded into their cell, and you can select and order columns explicitly. Delimiter: comma, semicolon, tab or pipe. Caps: 100,000 rows, 5 MB body, 20 MB CSV out. Returns text/csv ready for Excel, Google Sheets or a data pipeline. (0.002 USDC on Base)
• POST /v1/rerank — Rerank passages by relevance to a query via Cloudflare Workers AI (@cf/baai/bge-reranker-base). Send {query, documents[] (≤50, each ≤4000 chars), topK?}; returns [{index, score}] best-first — the missing link after embed/chunk, keeping the top chunks before a costly LLM call. Score is the model's relevance score (higher = better), named as it only compares within this model. Unavailable binding → 503, unbilled. (0.004 USDC on Base)
• GET /v1/vat-oss — EU B2C e-commerce VAT: where a distance sale is taxed and how much. Applies the €10,000/year OSS threshold — at/below → seller-country VAT (domestic); above → consumer-country VAT via OSS. IOSS for imports ≤ €150. ?sellerCountry=&buyerCountry=&amount= (+ ytdCrossBorder, category). Returns scheme, taxationPlace, applicableCountry, vatRate, vatAmount. Calculation aid; OSS/IOSS registration and filing are the seller's responsibility. (0.002 USDC on Base)
• GET /v1/wallet-name — Resolve a Basename or ENS name to an address, or an address to its primary name. Pass ?name=402utils.base.eth (name→address) or ?address=0x… (address→primary name). Basenames resolve on Base L2, other .eth names on Ethereum mainnet. Reverse results are forward-verified. ASCII names only; offchain (CCIP-read) resolvers like cb.id are not supported. (0.002 USDC on Base)
• POST /v1/embed — Text → vector embeddings via Cloudflare Workers AI. Send {text} or {texts[]} (≤20, each ≤4000 chars); returns one float vector per input. Default model @cf/baai/bge-m3 (1024-dim, multilingual). The model is named in the response — embeddings only compare within the same model. Completes the RAG chain: readability → chunk → embed, no OpenAI account. Cosine-compare the vectors yourself. Unavailable model/binding → 503, not billed. (0.004 USDC on Base)
• GET /v1/fx-rates — Daily euro FX reference rates from the European Central Bank. ?base (default EUR), ?quote for a single rate, ?date=YYYY-MM-DD for history (last 90 ECB business days; older dates 404). Non-EUR bases are cross-rates derived via EUR (quote-per-EUR ÷ base-per-EUR). Weekend/holiday dates resolve to the last published ECB day — the date field says which. Published ~16:00 CET on ECB business days; informational rates, not for transaction pricing. (0.001 USDC on Base)
• POST /v1/keywords — Extract salient keywords/key-phrases from text via TextRank (word co-occurrence graph + PageRank), merging adjacent high-ranked words into phrases. Pure, deterministic, model-free — extractive, NOT ML/NER or an LLM (the point: reproducible, no inference cost). English + French stopwords removed. Returns keywords[] with normalized scores (top ≈ 1). For content tagging/indexing and pre-RAG. Over 100k tokens is truncated. (0.002 USDC on Base)
• POST /v1/diff — Compute the diff between two texts (a → b) — no git needed. Returns a standard unified patch (line-oriented in both modes, applies with git apply or patch), added/removed counts, and in word mode a token-level change list for inline highlighting (capped at 2000 entries). CRLF line endings and missing trailing newlines are preserved byte-exactly. Caps: 1 MB UTF-8 per input; pathologically divergent inputs return 422 diff_too_complex. (0.002 USDC on Base)
• POST /v1/xml-to-json — Convert XML to clean JSON. POST raw XML (XML or text/plain Content-Type) or a JSON envelope {xml, alwaysArray}. Attributes land under "@_" keys, mixed-content text under "#text", repeated siblings become arrays, and alwaysArray forces arrays for listed tags even on a single occurrence. Numeric character references decode. DTD entities and DOCTYPE internal subsets rejected (anti-XXE / billion-laughs). Max 5 MB. (0.002 USDC on Base)
• GET /v1/timezone-convert — Convert a datetime between any two IANA time zones using the runtime's ICU tzdb — always current, DST-correct, half-hour zones included. A datetime without offset is read as wall time in `from` (ambiguous fall-back times resolve to the earlier instant; times skipped by spring-forward shift ahead, flagged in `note`). Returns both ISO datetimes with offsets and DST status per side. Unknown zone → 400 with a spelling suggestion. (0.001 USDC on Base)
• POST /v1/qr — Generate a QR code as PNG or SVG from any text or URL. Pick the size, error-correction level (L/M/Q/H) and foreground/background colours; a 4-module quiet zone is always included so it scans reliably. Returns the raw image bytes. No logo overlay (compositing is out of scope). (0.002 USDC on Base)
• GET /v1/domain-check — Domain availability and expiry intelligence via RDAP, the WHOIS successor. Queries the authoritative registry for any RDAP-enabled TLD: free domains return registered:false, taken ones return registrar, creation and expiry dates, nameservers and EPP status codes. TLDs without RDAP coverage return supported:false. Built for agents that buy, monitor or vet domains. (0.002 USDC on Base)
• POST /v1/hash — Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker. (0.001 USDC on Base)
• POST /v1/pdf — Render HTML or a public web page into a pixel-perfect PDF using a headless Chrome browser. Send inline `html` (invoices, receipts, reports, tickets) or a `url` to snapshot; control paper size, orientation, margins, background graphics and scale. Returns the raw application/pdf bytes — no signup, no browser to run, pay per document. (0.01 USDC on Base)
• GET /v1/cron-next — Next occurrences of a cron expression in any IANA time zone, DST-aware via the runtime's ICU tzdb (times skipped by DST shift forward by the gap; ambiguous times fire once). Dialect (croner): 5-7 fields with optional seconds and year, ranges, steps, lists, JAN-DEC/SUN-SAT names, L, W, #, ? and @daily-style aliases. Each occurrence is returned as local ISO with offset plus UTC. Bad expression → 400 naming the offending field. (0.002 USDC on Base)
• GET /v1/color — Colour utilities: ?op=convert (default) turns any hex/rgb()/hsl()/CSS-name into hex, rgb, hsl, hsv, alpha, relative luminance and exact CSS name; ?op=contrast with ?fg=&bg= returns the WCAG 2.x contrast ratio and AA/AAA pass/fail for normal & large text plus UI components (accessibility / EAA); ?op=palette derives complementary, analogous, triadic, tints and shades. Send hex without '#'. (0.001 USDC on Base)
• GET /v1/iban-check — Validates IBANs and checks their format and country details. (0.001 USDC on Base)

+76 more endpoints.