7,300 resources accept payment on this network. eip155:137
Convert data between JSON, CSV (auto-detects ; , tab |), YAML, XML and JSON Lines. E.g. a spreadsheet CSV to JSON for an agent, or JSON to CSV for Excel.
Fee history of the last N blocks on an EVM chain (eth_feeHistory): base fee per block, gas usage and priority tips at the 10th, 50th and 90th percentiles, with a tip rec…
Gas price and latest block right now on BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain, with the cost of a simple transfer in native coin.
Distance between two coordinates (Vincenty geodesic on WGS84 plus great-circle), in km, miles and nautical miles, initial bearing and compass direction, midpoint and est…
Hedera account (0.0.x or EVM address): HBAR balance, associated HTS tokens with balances, staking node, pending reward, creation date and USD value.
Current mid price of every Hyperliquid asset, or the ones you ask for (BTC, ETH, SOL, HYPE...), in one fast and cheap call.
IBAN validation (ISO 13616 mod-97 and per-country length, SEPA membership; for Spain also the national CCC check digits and bank name). Computed locally, IBAN is not sto…
Metadata of an image (URL or base64): format, dimensions, color mode, transparency, size, DPI, animation and EXIF (camera, date, software), flagging embedded GPS locatio…
Dominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by…
Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.
Public information about an IP address: network prefix, autonomous system (ASN) and holder, registration country, regional registry and abuse contact, or whether it is p…
IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belong…
Validate JSON (with line and column of the error), pretty-print or minify it, describe its structure (depth, keys, value types) and extract a value by path such as data.…
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 st…
Decode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header…
Find a company's LEI (Legal Entity Identifier) by name, or the record of a LEI: legal name, country, legal form, address, entity and registration status, renewal date, d…
Kaspa: balance of an address (kaspa:...) with transaction count and USD value; without an address, network status (blocks, difficulty, hashrate, circulating and max supp…
Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, index…
Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee.
Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query…
Compare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list.
Read a website's /llms.txt (the standard that tells LLMs what a site is about) as structured data: title, summary, sections with links and descriptions, and whether llms…
Count the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token.…
Pricing calculator: from any two of cost, price, margin or markup it computes the rest, profit per unit and total, and the price with VAT. Avoids the classic margin vs m…
