Get community sentiment for a cryptocurrency. Pay per call with USDC (x402) or credits - archtools.dev

Check if a domain is available or registered via RDAP (no key needed). Pay per call with USDC (x402) or credits - archtools.dev

Returns what a product declares about allergens: the allergen tags, the trace warnings, the ingredients text in its original language, and the completeness of the record. The distinction it holds to throughout is between not declared and not present. The data come from volunteers and manufacturer submissions, so an empty allergen field means nobody entered one, and for somebody with an allergy that difference is the difference that matters — every absent allergen is therefore reported as not…

Find phone numbers associated with an email, domain, or LinkedIn profile.

x402engine — Generate text embeddings using OpenAI text-embedding-3-small — for semantic search, clustering, RAG

Real-time price, 24h change, market cap and volume for any cryptocurrency. One POST, sub-second answers for trading agents. Pay per call with USDC (x402) or credits - archtools.dev

Check KYC verification status.

Cross-Chain Supply Reconciliation analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

Lookup WHOIS records and domain availability in JSON format. Provide the domain name via ?domain=example.com to query registrar, status, and expiration dates.

x402engine — Fetch full text content from URLs — extract clean text from up to 10 pages at once

Estimates great-circle port distance and sailing time from supplied port coordinates and speed. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

For each field cell, subtracts measured available nutrient from a supplied target and divides positive deficits by an explicit recovery fraction. It reports per-hectare rates and area totals. It does not infer crop targets, validate laboratory samples, account for nutrient chemistry or constitute an agronomic application prescription.

Calculates reachable transitive dependency count and maximum depth from a supplied graph. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Measures the share held by the largest maintainer from supplied ownership weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Returns a supplied published dangerous-goods record for a UN number and exposes missing fields. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Caps individual contributions when requested, computes each project’s raw quadratic match as (sum sqrt(contribution))² minus direct contributions, and allocates a fixed matching pool proportionally. It does not detect Sybil identities, move funds, or decide project eligibility.

Reports the propagation of a prefix as the fraction of RIS observers that see it, separately for IPv4 and IPv6, because the absolute peer count moves with the size of the measurement network and is not comparable across time or between prefixes. The share is graded against stated thresholds, and — this is the part that makes the number mean something — compared against the other prefixes announced by the same origin AS.

Accumulates simple daily degree-days above a supplied base temperature and combines threshold progress with mean humidity and host availability. The score is a deterministic planning heuristic over caller data; it does not identify a pest, ingest surveillance data, model population dynamics or prescribe pesticide use.