Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.

Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, time-only, day of week, and hu...

Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.

Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.

Look up the current Total Value Locked (TVL) for a DeFi protocol via DeFiLlama's public API. Identify the protocol by its DeFiLlama slug (uniswap, aave, lido, ethena, etc.). Returns the total TVL plus per-chain breakdown and 24h/7d/30d change wher...

What agents want that no one is serving yet — the paid intelligence layer over Agent402's agent-demand board, for x402 sellers deciding what to build next. Ranks the aggregated wish clusters (searches that found nothing + explicit tool requests) a...

Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key. ?q=insulin+pump&limit=5

Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) — the factory sorts internally. Returns 0x0…0 if no pool has been deployed for that combination yet.

Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call replaces ~6 RPC roundtrips on th...

Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee tier. NOTE: this is a single-t...

Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL — filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TVL in USD, current APY, and p...

Market-wide ex-dividend calendar for a given date — every US-listed company going ex-dividend that day with dividend rate, indicated annual dividend, payment date, and record date. Optional `symbol` filter narrows to one ticker. Defaults to today ...

Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the selector — use email-deliverabi...

Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for months, percent <100). Pair w...

DNS lookup for a domain. Supported record types: A, AAAA, MX, TXT, NS, CNAME.

Resolve any DNS record type for a host: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV, PTR. Returns the records plus a count. Built on Node's native resolver — no external API.

Resolve the same DNS record against 4 public resolvers (Google, Cloudflare, Quad9, OpenDNS) in parallel; surface divergences. The first call you make after a DNS change — confirms the world sees what you intended.

Top reported adverse reactions for a drug from the FDA FAERS database (openFDA), ranked by report count — a fast read on a drug's real-world safety signal. Live FDA data, no key. ?drug=aspirin&limit=10

Search FDA drug recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key. ?q=losartan&limit=5

Parse a duration like "2h30m" / "1d4h" / "90s" to seconds, or humanize a number of seconds.

Earnings calendar for a given date — every company reporting that day with EPS estimate, EPS actual (if reported), and reporting time slot. Optional `symbol` filter narrows to one ticker. Defaults to today (UTC). Backed by Nasdaq's public calendar...

Real-time USGS earthquake feed: magnitude, place, time, depth, coordinates. Live government data, no key. ?minMag=4.5&period=day (minMag: significant|4.5|2.5|1.0|all; period: hour|day|week|month).

List EAS (Ethereum Attestation Service) attestations for an address as recipient, attester, or either, on mainnet/Base/Optimism/Arbitrum/Sepolia. Returns attestation id, attester, recipient, schema id, revocable/revoked flags, timestamp, and decod...

Compute the date of Easter Sunday for a given year using the Anonymous Gregorian algorithm (Meeus/Jones/Butcher). Also returns Good Friday, Ash Wednesday, Palm Sunday, Pentecost, and the day-of-year for Easter.

Top holdings from an institutional investment manager's most recent 13F-HR filing (managers >$100M AUM file quarterly). Parses the standard SEC informationtable.xml attached to the filing — returns issuer, CUSIP, shares, USD value, and voting authority for each position. Sorted by USD value, descending. Source: data.sec.gov + filing archive. ?cik=1067983 (Berkshire) or ?ticker=BRK-B

Full reported history of a single XBRL concept for one company (e.g. quarterly Revenues for Apple). Each datapoint cites the accession number and filing that reported it, so you can trace the number back to a 10-K/10-Q. Source: data.sec.gov/api/xbrl/companyconcept. ?ticker=AAPL&taxonomy=us-gaap&tag=Revenues

All XBRL concepts reported by a company. Default returns a compact summary per tag (label, unit, latest value, latest end date) — typically a few hundred KB. Pass tags=Revenues,Assets,NetIncomeLoss to get full time-series for just those concepts. Source: data.sec.gov/api/xbrl/companyfacts. ?ticker=AAPL

Resolve a US stock ticker (e.g. AAPL) to its SEC CIK number, the primitive every other EDGAR call needs. Returns CIK in both zero-padded (0000320193) and integer form, plus the registered company name. Backed by SEC's company_tickers.json (public ...

Recent SEC filings for a company by ticker or CIK, newest first. Optionally filter by form type (10-K, 10-Q, 8-K, 4, S-1, etc.). Each row links to the primary document on SEC.gov. Source: data.sec.gov/submissions (public domain). ?ticker=AAPL&form=10-K&limit=10

Recent Form 4 insider transactions filed against a company (officer, director, or 10% holder trades). Backed by EDGAR's full-text search (efts.sec.gov) filtered by subject-company CIK — Form 4 is owned by each insider's CIK, not the company's, so this is the only single-call path. ?ticker=AAPL&days=30

Recently-filed S-1 (initial registration) or 424B4 (final prospectus — actual priced IPO) filings across all US issuers. Default returns S-1 filings (companies preparing to IPO) in the last 30 days; pass form=424B4 for actual IPOs that priced. Source: EDGAR full-text search. ?days=30&form=S-1

General-purpose full-text search across every SEC filing since 2001. Find any phrase in any filing — material-weakness language in 10-Ks, going-concern in 10-Qs, "Russia" exposure across all forms. Supports form-type, CIK, US-state, and date-window filters. Source: EDGAR full-text search (efts.sec.gov). ?q=going+concern&forms=10-Q&days=30

All US public companies that reported a given XBRL tag for a given period, in one call. Killer endpoint for cross-sectional screens: 'every issuer's Revenues for CY2023Q1' or 'every issuer's Assets as of CY2023Q4I (instantaneous)'. Period format: CY{YYYY} (annual), CY{YYYY}Q{1-4} (quarterly), or CY{YYYY}Q{1-4}I (instantaneous balance-sheet items). Source: data.sec.gov/api/xbrl/frames. ?taxonomy=us-gaap&tag=Revenues&unit=USD&period=CY2023Q1

Convert a nominal annual rate (APR) compounded m times per year into the effective annual rate (EAR / APY): (1 + apr/m)^m - 1. Set continuous:true for e^apr - 1.

End-to-end email-auth report for a domain: SPF + DMARC + DKIM (probes common selectors automatically) + MX records + score 0–100. The one call to make when 'why is our mail going to spam?' lands in your inbox.

Validate an email address: syntax check plus live MX record lookup on the domain (deliverability signal, not a guarantee).

Generate a text embedding vector using OpenAI text-embedding-3-small (1536 dimensions). Ideal for semantic search, RAG, and clustering. No API key needed; pay per call via x402. Text capped at 32k chars.

Generate a text embedding vector using OpenAI text-embedding-3-large (3072 dimensions). Higher accuracy than the small model. Ideal for semantic search, RAG, and clustering. No API key needed; pay per call via x402. Text capped at 32k chars.

Reverse-resolve a batch of Ethereum addresses to ENS primary names + avatar URLs (up to 50 per call). Returns one row per address with name (or null), displayName (with checksum if no name), and avatar URI. Use to label transaction lists, wallet l...

Resolve an ENS name (e.g. vitalik.eth) to its Ethereum address — so an agent can turn a human-readable recipient into a payable address. Read-only on Ethereum mainnet. ?name=vitalik.eth

Convert between Unix epoch timestamps and ISO 8601 date strings in both directions. Provide either an epoch (seconds or milliseconds) or an ISO date string. Returns both representations plus UTC and date components.

Escape hatch for power users: forward an arbitrary read-only JSON-RPC method to the chain. Method must be in our read-only whitelist (eth_call, eth_getLogs, eth_getBlockByNumber, eth_getTransactionReceipt, eth_chainId, eth_blockNumber, etc.). Muta...

Read-only JSON-RPC against Ethereum, Base, Polygon, Arbitrum, or Optimism with built-in multi-endpoint failover — one paid call, no node or API key of your own. Whitelisted methods only: eth_blockNumber, eth_gasPrice, eth_getBalance, eth_getTransa...

Extract the main article content from any public URL as clean markdown. Returns title, byline, excerpt, word count, and markdown.

Pull emails, URLs, IPv4s, @mentions, and #hashtags out of free text. Returns deduped lists.

Reverse-lookup an Ethereum address to its Farcaster account (via verified address). Returns FID, username, display name, bio, follower/following counts, and Warpcast URL, or found=false if the address has not verified on Farcaster. Use to label wa...

Lookup a Farcaster profile by username or FID. Returns FID, username, display name, bio, profile picture URL, follower/following counts, and the canonical Warpcast URL. Use to label cast authors, validate a Farcaster handle, or fetch a profile for...

Fetch a site's favicon/logo: reads the page's declared <link rel=icon…> tags (all variants with their sizes and types), deterministically picks the largest declared icon (falling back to /favicon.ico), fetches it, and returns the bytes as a base64...

Search US federal election candidates via the FEC: name, party, office (House/Senate/President), state, incumbent/challenger status, and FEC candidate ID. Live gov data. ?q=warren&limit=5

Current effective federal funds rate plus a trailing N-day series. Source: FRED DFF (Board of Governors). ?days=30 (1-365, default 30).