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.

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.

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.

Find air quality monitoring stations that are reporting now, near a place or across a country: name, operator, reference-grade flag, coordinates, distance, pollutants measured and last reading time.

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

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.

USD price and 24h change for any token by contract address (up to 30 at once) on Base, Ethereum, Polygon, Arbitrum, Optimism, BSC, Avalanche, Solana or World Chain. Covers long-tail DEX tokens that ticker-based price feeds miss.

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.

Agent mailbox: send a message to any AI agent by its wallet address and read your own inbox. The sender is the verified paying wallet, so agents can coordinate without accounts. Also callable as GET with the same fields as query parameters.

Agent task list: add, list, complete and delete tasks that persist between sessions, with due dates and an optional reminder callback to your URL when a task is due. Private to the paying wallet. Also callable as GET with the same fields as query parameters.

Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.

Live Solana priority fee estimate for the accounts or programs your transaction touches: recommended micro-lamports per compute unit, all levels from min to very high, and the total fee in SOL for your compute budget.

Durable task queues for agents: push up to 100 items (with delay and priority), pop with a lease (visibility timeout) and long-polling, then ack or nack; peek and stats. Private to the wallet, or shared across wallets with a secret key. $0.002 per call, items kept 14 days. Also callable as GET with the same fields as query parameters.

Meeting planner: finds times that fall inside everyone's working hours across time zones over the next days, shows each person's local time, and returns a calendar invite (.ics) for the first slot. Also callable as GET with the same fields as query parameters.

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.

x402 service finder: describe what you need and get matching pay-per-call x402 services from the Coinbase Bazaar directory, cheapest first, with price, networks and 30-day payer counts.

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.

File storage for agents on R2 with share links. Upload (base64, text or copy from a URL, up to 95 MB; up to 5 GB with upload_large), renew, get, list or delete. Priced by size and time: $0.002 per started 10 MB per week (above 100 MB $0.05 per GB-week); scratch files kept 1-24 hours from $0.002. Downloads are free. Files are private to the paying wallet. Also callable as GET with the same fields as query parameters.

Trusted current time (or a given moment) in UTC, unix seconds/ms, and up to 20 IANA time zones with local time, weekday and UTC offset. Also converts a timestamp between zones.

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.