data-retrieval-and-decoding

EVM developer utilities: keccak256 hash, function selector from a signature, EIP-55 checksum address and wei/gwei/ether conversion.

Translates a 4-byte function selector (e.g. 0xa9059cbb) or a 32-byte event topic into its human-readable signature (e.g. transfer(address,uint256)). Essential for an agent reading or verifying transactions. Live from 4byte.directory.

Validate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; nothing stored.

Read the codes in an image URL: QR, Data Matrix, Aztec, PDF417, EAN-13, UPC, Code 128, Code 39... with format, content and position; flags URLs, crypto payment URIs (bitcoin:, ethereum:, solana:) and wifi credentials.

Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.

EVM Call and Gas Simulation: Simulate a proposed EVM call and estimate gas on Base, Arbitrum or Optimism at a pinned block. Up to 4 KB calldata and 1,000,000 gas. Reports return data and available gas estimate. No signing, broadcast, state overrides or asset-change trace; a real transaction may behave differently. 0.01 USDC includes one bounded call simulation.

Subscription request - Train local text baseline and classify: Train local text baseline and classify for Subscription request. Up to 200 supplied labelled text records. Local dataset tools, evaluation and small naive-Bayes baselines; no hosted model or foundation-model training. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded train local text baseline and classify deliverable.

Turn free text into a URL-safe lowercase slug. Deterministic, no network.

FABA AirMeter v1 download

FABA AirCanon v1 download

Pay-per-call: OFAC SDN address screen

Settlement-test the PAL premium remediation product on exactly one product record. Returns the real prioritized Merchant Center/product-feed remediation result used by the $5 batch service.

Pay-per-call: Research brief (micro)

A page of prepared company fundamentals, with coverage and source dates.

Pay-per-call: Price Digest (public URL heuristic)

Pay-per-call: Price Digest (public URL heuristic)

PremiumPin validated CSV export