Validate and score email addresses in real time — syntax, domain/MX, disposable, role-based and typo detection. Every check except SMTP, in a single fast call.

Validate and score email addresses in real time — syntax, domain/MX, disposable, role-based and typo detection. Every check except SMTP, in a single fast call.

Real-time OFAC sanctions screening and compliance verification.

The Strong Password Evaluator API evaluates password security by analyzing complexity and assessing potential vulnerabilities, thereby improving overall security measures.

Test a regular expression against an input text and get every match with capture groups and named groups. Patterns run in an isolated worker with a hard time limit, so catastrophic patterns are stopped safely.

The Futoshiki generator API is that allows users to programmatically generate Futoshiki puzzles.

Phone Validation API validates phone numbers and provides phone metadata, including carrier, line type, prepaid status, and a phone activity score to identify disconnected numbers.

Score the readability of any English text. Returns Flesch-Kincaid, Gunning Fog, SMOG, ARI scores, sentence-level breakdown, improvement suggestions, and target grade pass/fail in one call.

Screen any name against US (OFAC), UN and UK sanctions lists — ranked, scored matches with full provenance.

Edge case test data for QA and fuzz testing: Unicode, injection probes, boundary dates, float precision. 16 types, reproducible seeds, and every value explains what it breaks.

Instantly check and fetch URL status to enhance your web reliability and user experience.

API for searching video transcripts with fuzzy and phrase matching capabilities

The Precise Finder API finds accurate web contacts, including phone numbers and social networks, ideal for lead generation and data enrichment in applications and automation campaigns.

The Keyword Evaluator API assesses keyword competitiveness, aiding SEO strategies by providing real-time insights for informed decision-making.

Fuzz testing input data for validation layers: malformed strings, boundary values, control characters. 16 field types, reproducible seeds; each value explains what it breaks.

Integer and floating-point edge cases: int32/int64 limits, NaN, infinity, denormals, and IEEE 754 rounding. Deterministic seeds, and every value explains what it breaks.

Canonical injection test strings for checking your own escaping: SQL tautology, XSS, path traversal, template injection. Harmless probes, not working exploits. Reproducible seeds.

Unicode test data for internationalization testing: combining marks, bidi overrides, ZWJ emoji, homoglyphs. Deterministic seeds, and every value explains what it breaks.

QA test fixtures and CI seed data with reproducible seeds, so pinned test runs return identical rows every time. 16 field types, each value explaining what it breaks.

Boundary value test data for off-by-one bugs: int32 and int64 limits, max-length strings, empty values. Deterministic seeds, and every value explains what it breaks.

Malformed and hostile string test data for input handling: control characters, null bytes, encoding edge cases. Reproducible seeds, and every value explains what it breaks.

Date and time edge cases: Feb 29, DST gaps, year 2038, leap seconds, and quarter-hour UTC offsets. Reproducible seeds, and every value explains what it breaks.

Boost student understanding with the EdTech Readability Improvement API designed for educational content.

Make your content accessible to all users with the Accessibility Compliance Accessibility Compliance Readability API.

A powerful suite of APIs for developers including deep Email Validation (with DNS MX checks), OpenGraph URL Metadata Preview extraction, and a high-speed Profanity/Toxicity filter. Designed to be fast, reliable, and secure.