All services

Factual summary of any topic from Wikipedia — for research agents. Input: ?topic=Bitcoin

DYOE Trust Check — is this counterparty safe? Scam, fraud, phishing & rug-risk check before an agent trusts or pays any website, business, wallet, or endpoint. Returns verdict (safe/caution/avoid) + trust_score + domain age + red_flags. The trust tollbooth of the agent economy. Input: ?target=domain

Curated on-chain registry lookup for Robinhood Chain stock tokens: 20 equities and 5 ETFs with canonical contract addresses sourced from official documentation, plus chain id, public RPC endpoint, and block explorer. Deterministic and cacheable — the same catalog every call until the registry is re-verified.

Port/chokepoint congestion index (daily & live, computed from public AIS)

Would-you-rather question generator: 120 curated dilemmas across categories including an agents-and-ai set written for AI audiences (infinite context vs zero latency), plus tech, philosophy, silly, food, adventure, and superpowers. Returns 1-5 random questions, optionally filtered by category. Clean content, no duplicates.

Calculates the great-circle distance between two GPS coordinates in kilometers, miles, and nautical miles, plus the initial compass bearing from point A to point B. For delivery routing, flight-distance estimates, and logistics agents that need an exact figure rather than an eyeballed map distance.

Distance calculator API: great-circle (haversine) distance between two coordinates in km, miles, and nautical miles, plus initial compass bearing. Deterministic and auditable — cheaper than burning reasoning tokens, zero arithmetic-hallucination risk, and the result can be cited. For logistics, travel, delivery, and geo agents. Pairs with /geocode-city for name inputs.

Unit converter API: length, mass, volume, temperature, area, speed, pressure, energy, power, and digital storage — 100+ units, exact factors. Deterministic and auditable — cheaper than burning reasoning tokens, zero arithmetic-hallucination risk, and the result can be cited.

Reloadpi — Topup purchase schema. Returns request format, msisdn requirement, and example for POST /topups/purchase.

Percentage math calculator: find what X% of Y is, what percent one number is of another, or the percent change between two values. Built for pricing markups, discount math, grading, tipping, and reporting agents that need the exact figure instead of mental-math rounding errors.

Agent fortune API: a fortune cookie written specifically for AI agents ('A cached response is worth two upstream calls'), plus a lucky number and lucky HTTP status code. The cheapest, most delightful way to make your first x402 payment and verify your wallet stack works end to end. New fortune every call.

Computes a SHA-256 digest of any input text and returns it as a hex string, computed locally with no network round-trip to a third party. Also supports SHA-512, SHA-1, and MD5 on request. Useful for content fingerprints, cache keys, and deduplication logic where the same input must always produce the exact same output.

Produces an MD5 hash, or SHA-1, SHA-256, SHA-512 on request, of any text input as a hex digest, computed instantly with nothing stored. Useful for legacy checksum compatibility, quick fingerprinting, and integrity checks in pipelines that still expect an MD5 value alongside newer algorithms.

Temperature conversion API: any of Celsius, Fahrenheit, Kelvin, or Rankine to all four at once. Science-grade, exact.

Converts a given local time between IANA timezones with daylight-saving transitions applied correctly, so a meeting scheduled across the DST changeover lands on the right hour instead of one off. Returns local time, UTC ISO, and unix epoch for downstream calendar and reminder systems.

Timezone converter API: convert a wall-clock time from one IANA timezone to another with daylight-saving applied correctly — returns converted local time, UTC ISO, and unix epoch. 'What is 3pm Tokyo for Chicago?' deterministically. For scheduling and calendar agents.

Ranked Stock Trends signal screener for agent workflows, using trend state, trend persistence, trend maturity, relative performance, and volume signal fields.

Grant narrative writer for grant-writer and nonprofit agents. Returns professional narrative section drafts ready to customize, with data placeholders and strengthening tips.

Token and word counting API: characters, words, sentences, estimated LLM tokens, Flesch reading ease, and reading time for any text. Budgeting context windows and readability in one call.

Fortune cookie API for AI agents: a fortune written for language models, a lucky number, and a lucky HTTP status — the cheapest possible first x402 purchase. Come for the novelty, stay for the utility grid.

Percentage API: X% of Y, X is what percent of Y, percent change, percent increase/decrease — all five, exact, one call.

Secure token generator API: cryptographically random UUIDs (batch up to 20), hex tokens, or unambiguous alphanumeric secrets (length 8-128) from OS-grade entropy. For request ids, nonces, temporary passwords, and API-key material. Generated locally, never logged.

塔林公交实时 — 塔林实时公交车辆，免注册。

法罗群岛天气 — 法罗群岛首府天气，免注册。