All projects on Base matching “base”

French address geocoding on the official Base Adresse Nationale (api-adresse.data.gouv.fr, Etalab/IGN, continuously updated). Forward: ?q=8 boulevard du port amiens with optional &type=housenumber|street|locality|municipality &citycode=80021 (INSEE filter). Reverse: ?lat=49.897&lon=2.290. &limit=1-10 (default 3). Each match returns normalized label, confidence score, lat/lon, street, postcode, cit

NFT metadata for ERC-721 and ERC-1155 tokens on Base, Polygon, Arbitrum, Optimism and Ethereum. Resolves tokenURI through IPFS, Arweave, data: URIs and public HTTPS, and returns the parsed metadata JSON.

Historical fiat exchange rates for a given date (YYYY-MM-DD, back to 1999-01-04) and base currency; optionally restrict to specific targets.

Find the best DeFi yields across 500+ protocols and all major chains: filter by token (USDC, ETH...), chain, protocol, stablecoin-only and minimum TVL; returns APY (base + reward), 30-day mean APY, 7-day change, TVL, impermanent-loss risk and outlook. Sort by APY or TVL.

Token risk / token safety check for Base and BSC (BNB Chain) tokens: honeypot detector via live buy/sell simulation (honeypot.is, cross-checked with GoPlus when available), buy tax / sell tax, contract security (mint, pause, blacklist, proxy, owner renounced), holder concentration, liquidity, pool age, LP burn. Returns verdict low/medium/high/honeypot, 0-100 risk score, action and plain reasons. R

Paid book chapter (x402): Automate the Boring Stuff with Python: What Is Programming. Unit of a larger practical-skills library; free catalog at /library/discovery.json. Book slug: automatetheboringstuffwithpythonnew. Response format: Markdown (.md) for agent parsing. USDC on Base via Coinbase CDP facilitator. Free teasers and discovery.json require no payment.

VIN decode (x402; 402 first, $0.005, Base then Solana)

Lumi Market Ideas (educational, not financial advice). Support and resistance levels for one of 14 watchlist and major coins (XRP, BTC, ETH, HBAR, XLM and more), with a bias label, rule-based 7-day bull/base/bear scenario levels (not forecasts), commentary, dated catalysts and cited sources. Use for price reference levels on one coin. Paper-trade analysis, not investment advice. Lumi does not trad

Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global coverage updated every 15 minutes. No API keys, no geocoding setup, no rate limits. Accepts USDC payments on Base and Solana

Last N blocks (default 10): height, hash, size, txcount, time — flat $0.001 per call, USDC on Base, no signup.

Base token sell check AT YOUR TRADE SIZE: simulates a buy of amountEth (0.001 to 10 ETH) and an immediate sell inside eth_call (no trade is sent) and reports the buy tax, the sell tax and the round-trip loss including price impact. Uniswap v2, v3, v4 (ETH, WETH, ZORA, USDC quotes) and Aerodrome. Measured at one block, not a guarantee, not financial advice.

What is the sales tax rate at this US address, ZIP+4 or ZIP? The combined rate and each state, county, city and district rate in the 24 Streamlined Sales Tax states (WA, OH, MI, NJ, TN, …), computed by Distill from each state’s SST rate and boundary files. Updated quarterly. $0.005 per call (x402, USDC on Base); 3 free calls a day.

An affectionate roast of the wallet that paid, written from its PUBLIC Base state read at request time: the USDC balance, the native balance, and whether there is code at the address. Those become words — dust, pocket, purse, vault; gas or none; contract or plain — and a hand-written line is picked from them, keyed to your address and the UTC date, so it holds all day. EXACT AMOUNTS ARE NEVER RETU

Google Search API: Give a query, get ranked organic results with title, link, snippet, plus knowledge graph and related searches. $0.003 USDC per call on Base.

Call after your agent completes an action it may later have to prove: seal the hashes of its input and output (only your action label and meta are published) into GBLIN's signed append-only transparency log and get a portable receipt: Ed25519 signature, RFC 6962 inclusion proof, C2SP signed checkpoint; root anchored daily on Base (EAS). Proves existence and time, not correctness. Free reads and de

Android app details by package name (e.g. com.whatsapp): title, developer, description, what's new, screenshots, icon, rating, installs, category, tags, price, required Android version, Editors' Choice, latest version and APK download availability. Google Play app metadata in one JSON record, for app research, app-store intelligence and catalog enrichment. Keyless pay-per-call in USDC on Base or S

Use this when a user or autonomous agent wants one current 4H crypto market decision selected from BTC, ETH, XRP and ONDO. Returns the Trading Zones Selector choice with direction, confidence, entry, liquidity-zone stop loss and take profit, R:R and nine indicators. Free, independently countable selector evidence is available before purchase. Price: $0.03 USDC via x402 on Base Mainnet; no API key

Is this domain malicious or named by ransomware? Domain threat check. $0.02 USDC on Base per call. Matches the hostname, parent domains and resolved IPv4 against ThreatCluster's high-confidence 30-day IOC feed and looks up ransomware leak-site claims. Returns one verdict: listed, claimed, listed_and_claimed or no_known_threat. Don't use this for many domains; use /v1/bulk-threat-check.

Daily JSON bundles for agents: BTC/ETH volatility regime, crypto news with top x402 sellers, Brazil business calendar, x402 agent economy, Base chain gas, US macro (CPI, unemployment, SOFR). This route serves the brazil-business-calendar bundle.

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the sign

Is this crypto wallet sanctioned? Instant OFAC SDN address screen for AI agents. Returns PASS/WARN/BLOCK. $0.001 Base USDC, keyless x402. Ed25519-attested. Upsell: full counterparty bundle $0.05.

Convert a public web page into concise, validated Schema.org JSON-LD for agents and automation. Supports 200+ entity types and can produce a useful page-level entity when existing markup is missing or incomplete. $0.01 USDC per successful request on Base. Call /check before paying. Payment authorization settles only after a successful response.

DeFi position and wallet risk snapshot on Base: token balances, account flags, and live Aave v3 collateral, debt, borrowing power, and health factor read directly from the protocol at a specific block, plus derived risk metrics — net equity, LTV utilization, leverage multiplier, health-factor band, and collateral drawdown tolerance (how far collateral can fall before liquidation). For agents asses

Is this CVE exploited? CVE lookup with KEV, ransomware use, EPSS and public exploits. $0.03 USDC on Base per call. Returns CVSS, affected products, advisories, CISA KEV and ransomware use, EPSS, public exploit repos, an AI-generated ATT&CK attack flow (flagged) and D3FEND countermeasures. Uncached CVEs return 404, not charged. Don't use this for CVEs not yet cached; they return 404 and are queued.

Get the full record of one of the NSW development applications by its Planning Portal application number (PAN). Returns every location with lot and plan, all development types, submission, lodgement, determination and exhibition dates, cost, dwellings, storeys, lots and the remaining source fields. Costs $0.005 per call (x402, USDC on Base). Source: NSW Department of Planning, Housing and Infrastr

Work out an invoice due date and early-pay discount from terms like Net 30 or 2/10 Net 30. $0.01 USDC on Base per call. Parses Net N, D/N Net M, Due on receipt, EOM and Net N EOM. Returns due date, days until due or overdue, discount and deadline, the annualized cost of skipping it and reminder dates. Don't use this for late fees; use /v1/late-fee.

Executes state-override simulation of $1k, $10k, and $50k swap orders on Base Mainnet, calculating exact slippage, gas overhead, and MEV frontrun exposure.

Rum Bottle Sort - Item pack (coins x500, non-withdrawable). 1 USDC on Base, cost-plus priced by an SCDO AI Ledger agent (9Y9 PTY LTD, Australia).

Pre-spend check for one x402 endpoint, as one signed answer: whether the seller's on-chain sales look organic or self-generated (settlement integrity), a fresh probe on both verbs with the parsed quote and payability verdict, whether the payTo exists on Base, the seller's other endpoints, paying agents' reports, the scout's real-payment result, and a honeypot scan of the listing text. Returns reco

Smart contract security scan for AI agents: give a chain id and contract address, get Slither static-analysis findings (reentrancy, unchecked calls, arbitrary sends, etc.), proxy/upgradeability status and the list of owner/role-gated admin functions (mint, pause, blacklist, upgrade). Works on any Sourcify-verified contract on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB. Use before approving,