Agent Data Tools

Check how much of a wallet's ERC-20 token a spender contract is approved to move on Base: the raw and formatted allowance, the token symbol and decimals, and whether the approval is unlimited. Use before a swap or deposit to see if an approve transaction is needed, and to audit a wallet for risky unlimited approvals. Costs $0.002 in USDC on Base per successful call, paid with x402.

Live gas prices on Base (chain 8453) read from the latest block: base fee and priority fee in gwei, suggested maxFeePerGas and maxPriorityFeePerGas in wei for an EIP-1559 transaction, how full the latest block is, and the estimated execution fee in ETH for an ETH transfer and an ERC-20 transfer. Use before sending a transaction on Base or to decide whether to wait for lower fees. Costs $0.002 in USDC on Base per successful call, paid with x402.

Look up any transaction on Base by hash: whether it succeeded, reverted or is still pending, sender and receiver, ETH value, called method id, block number and time, number of confirmations, gas used, gas price and the execution fee paid, and whether it created a contract. Use to confirm that a payment or contract call went through before acting on it. Costs $0.003 in USDC on Base per successful call, paid with x402.

Balance and activity of any Bitcoin mainnet address (legacy, P2SH or bech32): confirmed balance in sats and BTC, unconfirmed pending amount, total received and sent, and transaction counts. Use for payment verification, checking whether a deposit arrived, and wallet monitoring. Costs $0.003 in USDC on Base per successful call, paid with x402.

Current Bitcoin network fee rates in sat/vB for next-block, half-hour, one-hour and economy confirmation, the estimated cost in sats of a typical payment, mempool size and total pending fees, and the latest block height. Use before sending a Bitcoin transaction or to decide whether to wait for lower fees. Costs $0.002 in USDC on Base per successful call, paid with x402.

Current Bitcoin (BTC) spot price in USD, EUR, GBP, CAD, CHF, AUD and JPY, averaged across major exchanges, with the number of satoshis per US dollar and the time of the price. Use to convert between sats and fiat, to value a Bitcoin or Lightning payment, or to check the BTC price before a trade. Costs $0.002 in USDC on Base per successful call, paid with x402.

Limited Base contract bytecode, EIP-1967 slot and zero-supply heuristics. Missing or unsupported property reads are null; RPC transport failures return 502. Ownership renunciation requires a confirmed zero owner. Empty slots do not identify uninitialized proxies. EOAs return not-applicable. Not a full security audit; see endpoint details for coverage limits. Costs $0.02 in USDC on Base per successful call, paid with x402.

Vision model for an image at a public URL: get a detailed description including any visible text, or pass a question to ask something specific about the image. Accepts PNG, JPEG, WebP and GIF up to 3 MB. Use for alt text, OCR-style reading of screenshots, chart reading and content checks. Costs $0.01 in USDC on Base per successful call, paid with x402.

Domain intelligence in one call: DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA), DNSSEC status, registrar, registration and expiry dates with domain age in days (RDAP/WHOIS), and email authentication (SPF and DMARC records and policies, whether the domain accepts mail). Use for lead qualification, phishing and trust checks, and deliverability audits. Costs $0.005 in USDC on Base per successful call, paid with x402.

A trust verdict for any domain in one call: high/medium/low trust with named flags for very new registrations, expiry, missing or weak SPF and DMARC, too few nameservers, no web host and non-resolving domains, plus the key facts (registrar, age, nameservers, DNSSEC). Use for lead qualification, phishing and vendor checks, and before an agent sends mail to or trusts a domain. Signals only, not a guarantee. Costs $0.01 in USDC on Base per successful call, paid with x402.

Check email syntax, DNS and MX records, disposable providers, role addresses, free providers and SPF/DMARC presence. Returns likely-deliverable, risky, undeliverable or invalid with reasons. No message is sent and the mail server is not contacted. These are DNS and syntax signals, not proof that a mailbox exists or accepts delivery. Costs $0.002 in USDC on Base per successful call, paid with x402.

Resolve an Ethereum Name Service name such as vitalik.eth to its wallet address and avatar, or look up the primary ENS name of an address (reverse resolution). Read live from Ethereum mainnet. Use to turn a human-readable name into a payable address, or to show a readable name for a counterparty address. Costs $0.002 in USDC on Base per successful call, paid with x402.

Read public static HTML, Markdown or plain text. HTML includes code, tables, links, heading IDs, image alt text and unverified author/date provenance. Known permalink controls are omitted. Optional exact HTML section ID. Default 20,000 output characters, maximum 100,000; input 2 MiB. No JavaScript rendering, authentication or paywall access. Empty pages, invalid sections, browser challenges and execution errors are uncharged. Costs $0.002 in USDC on Base per successful call, paid with x402.

Foreign exchange rates from the European Central Bank for about 30 major currencies (USD, EUR, GBP, JPY, CHF, SEK, CAD, AUD, CNY, INR, BRL and more). Give a base currency, optionally the target currencies and an amount, and get the rates, the converted amounts and the date the rates apply to. Use for currency conversion, invoice and price calculations, and reporting in another currency. Costs $0.002 in USDC on Base per successful call, paid with x402.

Text-to-image generation with FLUX.1 schnell. Send a prompt, get a 1024x1024 JPEG back as base64 in a few seconds. Use for illustrations, thumbnails, mockups, avatars and social media images. Optional steps parameter (1-8, default 4) trades speed for detail. Costs $0.02 in USDC on Base per successful call, paid with x402.

Base DEX pair lookup through DexScreener: verified pair identity, tokens, reported liquidity, volume, trades and pair age where available. Returns source and retrieval time; missing fields are null. No pool-security or investment-risk assessment. Missing pairs return 404; upstream failure returns 502. Example values are illustrative. Costs $0.03 in USDC on Base per successful call, paid with x402.

Decode a BOLT11 Lightning Network invoice without paying it: network, amount in sats and BTC, description, payment hash, creation time, expiry time and whether it has already expired. Use to check what an invoice asks for before an agent pays it. Costs $0.002 in USDC on Base per successful call, paid with x402.

Estimates Base gas costs from current fees and priority-fee presets. Fixed gas units (100k simple, 250k complex, 180k liquidity) are typical assumptions, not transaction-specific estimates or quotes. Valid values: standard, high-mev (3x priority fee), low-gas (half); invalid values return HTTP 400 without charge. No transaction simulation, mempool observation, or MEV/sandwich-risk measurement. Costs $0.04 in USDC on Base per successful call, paid with x402.

Reports package existence, latest version and release, age, version count, npm weekly downloads, licenses, deprecation and known advisory severity. Bounded signals: ok means no listed flags, not a safety guarantee. Supports npm, PyPI, Cargo, Go, Maven and NuGet. Optional exact version adds pinned-version metadata and uses deps.dev advisories; use /package-audit for OSV affected ranges and dated FIRST EPSS CVE estimates. Costs $0.002 in USDC on Base per successful call, paid with x402.

Check up to 10 public dependencies, optionally pinned to exact versions, for advisory IDs, OSV affected/fixed ranges and dated FIRST EPSS CVE estimates. Scoped npm names supported. Detail and subrequest caps apply; omitted details and incomplete coverage are explicit. Missing evidence is unknown, not zero risk. Automated signals, not a safety guarantee. See the buying guide for limits. Costs $0.20 in USDC on Base per successful call, paid with x402.

Search scholarly literature across journals, conferences, preprints and books: title, authors, year, venue, citation count, DOI link and abstract where available. Optional fromYear filter and up to 20 results per call. Use for research agents, literature reviews, fact-checking a claim against published work, and finding the DOI for a citation. Costs $0.003 in USDC on Base per successful call, paid with x402.

Render any public web page in a real headless Chrome browser, with JavaScript executed, and get a JPEG screenshot (1280 px wide, base64) plus the final URL, HTTP status and page title. Set fullPage=true to capture up to 4000 px of page height. Use for visual checks, page previews, monitoring and feeding pages to vision models. Costs $0.02 in USDC on Base per successful call, paid with x402.

Read one public XML sitemap or sitemap index as structured URLs and source-reported dates. Supports gzip, substring filtering and pagination. Maximum 512 KiB expanded input and 1000 entries. Does not crawl pages or follow child sitemaps. Invalid XML and execution errors are not charged; a valid empty match is charged. Costs $0.002 in USDC on Base per successful call, paid with x402.

Give a URL, get a short summary of the page plus three to six key points, ready to drop into an agent's context. Fetches the page, strips navigation and boilerplate, and summarizes the main text with an LLM. Use for research, news triage, link previews and deciding whether a page is worth reading in full. Costs $0.01 in USDC on Base per successful call, paid with x402.

The exact current date and time in any IANA time zone, with UTC offset, weekday, abbreviation and Unix timestamp, daylight saving time handled. Optionally convert a given moment into up to 10 other time zones in the same call. Use when an agent needs to know what time it is, to schedule a meeting across time zones, or to turn a timestamp into local time. Costs $0.002 in USDC on Base per successful call, paid with x402.

Live on-chain facts for any ERC-20 token on Base: name, symbol, decimals, total supply, owner address and whether ownership is renounced, paused state, proxy detection (EIP-1967 and minimal proxy) with implementation and admin addresses, and bytecode heuristics for mint, pause, blacklist and fee-setter functions. Use for token due diligence and rug-pull or honeypot screening before a swap. Costs $0.01 in USDC on Base per successful call, paid with x402.

Base token heuristic screening plus DexScreener market data, source and retrieval time. Returns owner, paused and proxy facts with limited selector checks. A mint selector does not prove callable minting; missing or unavailable evidence remains unknown. Illustrative examples are not live quotes. Not a safety guarantee; see endpoint details for coverage limits. Costs $0.02 in USDC on Base per successful call, paid with x402.

Combines the Base token-report risk tier and flags, available DEX market data, and wallet-audit risk tier, flags, account nonce, and native balance. Returns the underlying indicators separately; it does not generate buy/sell recommendations or calibrated confidence, and does not evaluate holder concentration. The account nonce is not full transaction, token-transfer, or trading history. Costs $0.05 in USDC on Base per successful call, paid with x402.

Transcribe speech from an audio file at a public URL using Whisper large-v3-turbo. Returns the transcript text, detected language, duration and word count. Accepts common formats such as MP3, WAV, M4A and OGG up to 5 MB. Use for voice notes, podcast clips, meeting snippets and voice messages. Costs $0.02 in USDC on Base per successful call, paid with x402.

Live snapshot of any address on Base: ETH balance, balances of major tokens (USDC, WETH, cbBTC, DAI, USDbC, cbETH, AERO, EURC) plus up to 20 extra token addresses you pass, the EVM account nonce, and whether the address is an EOA, a smart contract or an EIP-7702 delegated account. For EOAs the nonce reflects outgoing transactions only; this is not full transaction, token-transfer or trading history. Costs $0.005 in USDC on Base per successful call, paid with x402.

Returns a heuristic high/medium/low address risk tier, named flags, ETH balance, holdings of 4 major tokens (USDC, WETH, cbBTC, DAI), and the Base EVM account nonce. Per-token risk is unknown because token contracts are not audited here. For EOAs the nonce reflects outgoing transactions only; it is not full transaction, token-transfer or trading history. Address type is reported separately and does not affect the balance/nonce-based risk tier. Costs $0.02 in USDC on Base per successful call, paid with x402.

Weather for any point on Earth by latitude and longitude: current temperature in Celsius, conditions (clear, cloudy, rain, snow), precipitation in mm, wind speed and direction, humidity, cloud cover and air pressure, plus an hourly forecast for up to 48 hours. Data from the Norwegian Meteorological Institute. Use for travel and event planning, logistics, agriculture and any agent that needs the weather. Costs $0.002 in USDC on Base per successful call, paid with x402.