Immigration cost calculator / visa fee breakdown. Itemizes government and USCIS fees, attorney fees, medical exams, document costs, hidden costs, family add-ons, and fee waivers for any visa type and destination worldwide. For immigration and relocation agents.

Power grid status and reliability — demand, capacity, grid stress, and generation mix for major US grids (ERCOT, CAISO, PJM). For energy-trader and energy agents.

Validate a payment card number with Luhn and classify the network from bundled static BIN range rules.

Detect mixed-script and confusable Unicode characters and return exact offending codepoints.

Validate IBAN country format, length, mod-97 checksum and return a bundled static bank-code lookup when known.

Parse common EU address strings into street, number, postcode and city, with postcode syntax validation per country.

Race training plan / marathon & 5K prep by race date: build a plan backwards from event day. Returns periodization, weekly mileage, taper, and race-day strategy tuned to race type, date, current fitness, and runs per week. Fitness-info for athlete and coaching agents.

Fuzzy-match a submitted record set and return cluster ids for likely duplicates.

Validate the structure of an x402 payment payload before an agent signs or submits it.

Check token amount decimals, dust, unusually round/precise values and mismatch against a stated invoice amount.

Apply NFKC normalization and remove zero-width and bidi override characters, returning cleaned text plus a removal report.

Validate up to 500 mixed financial identifiers in one call. Each item may specify type iban, vat, card or auto.

Validate an EVM address format, compute/verify EIP-55 checksum, and flag zero, burn and low-entropy address patterns.

Scans BTC+ETH+SOL perp regimes simultaneously. Returns highest-confidence setup with signal_alignment, edge, invalidation_conditions, market_bias. Layer 3 Oracle Intelligence. — Ed25519 signed attestation

Get current weather and forecast for a location

Get a BUY/SELL/HOLD signal plus conviction only.

Retrieve an attestation by id with GET /attest/{id}. The gateway prefix-matches this registered path.

Compare a domain against a caller allowlist using edit distance and visual confusable skeleton similarity.

arXiv AI/ML paper search — recent submissions by keyword and category (cs.AI, cs.LG, cs.CL, cs.CV, cs.RO, stat.ML).

Normalize a phone number to E.164 with bundled offline country dialing metadata.