NFTs owned by a Solana wallet, including compressed NFTs: name, image, collection and grouping by collection, with likely spam airdrops hidden.

Live gas prices on Ethereum, Base, Arbitrum, Optimism and Polygon: gas price, next base fee, slow/normal/fast priority tips, and USD cost of a simple transfer.

Public holidays for 100+ countries (optional state/province), plus business-day math: count business days between two dates, add N business days to a date, or check if a date is a business day.

Fact lookup for grounding: best-matching Wikipedia article summary plus structured Wikidata facts (website, founding date, birth/death dates, population, coordinates) and the source link. Any language edition.

Exact calculator for agents: math expressions (functions, powers, factorials), unit conversion (length, mass, volume, area, time, speed, data, energy, pressure, power, temperature) and date arithmetic (add, diff with business days, weekday). Also callable as GET with the same fields as query parameters.

Citation formatter: a ready reference in APA, MLA, Chicago, Harvard, IEEE, Vancouver or BibTeX from a DOI, an ISBN or any web page URL.

Total value locked for a DeFi protocol (aave, uniswap, aerodrome, lido...) and/or a chain (Base, Ethereum, Solana...), with the chain's TVL rank.

Crypto name lookup: resolve ENS and Basenames (vitalik.eth, jesse.base.eth) to a wallet address with avatar, url, twitter and description records, or reverse-resolve a 0x address to its primary name.

Data conversion and checking: convert between CSV, TSV, JSON, XML and YAML (typed CSV values), and optionally validate the data against a JSON Schema with a list of every error. Up to 1 MB. Also callable as GET with the same fields as query parameters.

Best DeFi yields across 16,000+ pools: filter by chain, protocol, token symbol, stablecoin-only and minimum TVL; sort by APY or TVL. Returns APY (base + reward), 30-day mean APY, TVL, IL risk and a link.

Developer toolbox in one call: sha256/sha1/sha512 hashes, base64/url/hex encode and decode, JWT decode, JSON format/validate, UUIDs, secure random numbers and passwords, regex test, slugify, word count and timestamp conversion. Also callable as GET with the same fields as query parameters.

QR codes: make a QR code (PNG or SVG, any size, error-correction level) from text or a URL, or read the text from a QR code in a PNG or JPEG image. Also callable as GET with the same fields as query parameters.

OpenAI-compatible chat completions on IBM Granite 4.0 Micro, the lowest-cost chat here, with tool calling (131K context). Set your OpenAI SDK base URL to https://agents.citiviewgroup.com/v1/granite and pay per token with x402 instead of an API key: $0.051 per million input and $0.336 per million output tokens, minimum $0.002 a call, at most $0.0049. The 402 quotes your request's maximum; "upto" payers are charged only the tokens used. Same request/response shape as OpenAI (to

Geocode a place, landmark or street address to latitude/longitude with city, region, country, postcode, timezone and population where known. Cities via GeoNames, addresses and points of interest via OpenStreetMap.

Package vulnerability check for coding agents: known CVEs/GHSAs for an npm, PyPI, Go, Maven, crates.io, RubyGems, NuGet or Packagist package version, with severity, fixed versions and the latest release (OSV.dev).

IP address and ASN lookup from the internet registries (RDAP): network name and range, owning organization, country, origin ASN, abuse contact email, registration dates and reverse DNS. Pass ip= (IPv4/IPv6) or asn=.

Verifiable random numbers from the drand public beacon (League of Entropy): numbers in a range, or a fair shuffle and pick of your items, with the beacon round so anyone can re-check the result.

Team memory: shared notes for a group of agents. Create a team to get a team id and secret code; any agent with the code can save, get, list, search and delete entries. Up to 5,000 keys per team. Also callable as GET with the same fields as query parameters.

Phone number check: validates a number and returns its country, line type (mobile, fixed line, toll free, VoIP...) and E.164, international and national formats, from Google's libphonenumber data.

Perpetual futures market data from Hyperliquid: mark and oracle price, 24h change, hourly and annualized funding rate, open interest, 24h volume, premium and max leverage. Pick coins or get the top markets by volume.