Echo text with length (probe channel 1). Call when you verify x402 pay→deliver wiring with a trivial payload. Returns echo text, length, echo=1 for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Tip amount, total, and per-person split for a restaurant bill.

Retrieve a stored x402 Doctor report again by its id ($0.01): the full report of a test purchase, price lookup or cached result, exactly as first delivered. Only the wallet that paid for the original call can retrieve it; reports are kept permanently.

$0.004/page. Add an invisible OCR text layer to a scanned PDF — looks identical, fully searchable. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Base launches: pools created on Base in the last 24 hours on Uniswap V4, V3, V2 and Aerodrome, newest first, with launchpad, liquidity and volume. Use when you need to answer: Which tokens just launched on Base, with liquidity and honeypot flags? Each carries its pair, creation time, launchpad named from the V4 hook (Zora, Clanker, Doppler, Flaunch), quote-side liquidity, 24h volume and swaps,…

Address geocoding API for agents: geocode one U.S., Puerto Rico, or U.S. Island Areas address for $0.001 USDC through the public Census Geocoder. Returns approximate coordinates with required Census attribution—no global maps, navigation, or address retention.

Load a reloadable card balance with USDC. Pay from either chain: the card issuer only accepts USDC on Base, and Laso bridges the payment to the account holder's own deposit address at the issuer over CCTP, which mints native USDC so the full amount arrives. Laso absorbs the bridge cost, so the price is exactly the amount that lands on the balance. Requires a linked card issuer account. Follow with POST /create-reloadable-card to create a card against the balance.

EVM gas oracle for any major chain - Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche: next-block baseFee plus slow, med and fast priority-fee tiers (maxFeePerGas and maxPriorityFeePerGas), read live from chain state in one call. Choose network (default Ethereum). EIP-1559 and legacy handled.

Official Norwegian company registry lookup (Brønnøysundregistrene, Enhetsregisteret, BRREG open data, NLOD). Query: /v1/eu/entreprise/NO/923609016 (9-digit organisasjonsnummer). Returns legal name, legal form, status, incorporation date, registered office, VAT/MVA and LEI. Legal persons only: a sole proprietorship (ENK), an estate (KBO, BO) or a form not recognised as a legal person returns 404, not billed. Same unified JSON schema as every Sirenic European profile.

Top holders of any SPL token: per-account share with top-1, top-5 and top-10 concentration for a Solana mint. Use when you need to answer: Who holds this SPL token? A deeper cut than the summary in /api/token-risk.

Title-case text for agents. Call this when you need headline-ready casing for titles, product names, or UI labels mid-workflow. Returns structured JSON with the title-cased string and a tiny receipt schema. $0.001 USDC per successful call via x402 on Base or Solana—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

Estimate GPT- and Claude-style token counts for a text payload for $0.001 USDC; deterministic and keyless. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

Wallet profile and PnL of a crypto trader ($0.01): track record in the DEX pools this API follows - realized and unrealized PnL, win rate, holding time and style (scalper, intraday, swing), open positions, PnL percentile, a label (SMART_MONEY, PROFITABLE, UNPROFITABLE) and daily net flow. Use before copying a wallet.

Set intersection of two lists. Call when you find shared agent tags/IDs. Returns intersection items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Extract file extension from a path or URL path segment. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Honest limit: execution uses only caller-supplied data in memory; it does not call a paid upstream, retain input, search the web, read a live RPC, or invoke a media generator. Results are advisory; the caller owns authorization, budgets, and production controls.

SHA-256 hex digest of UTF-8 text. Call when content addressing or dupe keys for text. Returns sha256 as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Reliability diagram points (mean forecast vs hit rate per bin). Call when plotting calibration without a notebook stack. Returns bins with mean_forecast and hit_rate as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Reverse a text string to build a replayable transformation fixture. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Honest limit: execution uses only caller-supplied data in memory; it does not call a paid upstream, retain input, search the web, read a live RPC, or invoke a media generator. Results are advisory; the caller owns authorization, budgets, and production controls.

Detect common SPF mechanisms present in a TXT record. Call when quick SPF mechanism inventory without DNS lookup. Returns flags for include/a/mx/all as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.