Solar potential for any address or coordinates: yearly and monthly output of a rooftop system (NREL PVWatts), sun hours, capacity factor, plus estimated yearly savings, install cost and simple payback years.

EV charging stations (and other alternative fuel stations) near a place in the US and Canada: network, Level 2 and DC fast port counts, connector types, access hours, pricing, address and distance, from the US DOE station locator.

DOCX to Markdown: Convert a DOCX (Word) document to clean, LLM-ready Markdown. Provide a direct URL or base64-encoded file bytes. Preserves headings, lists, tables and formatting. Works for contracts, resumes, reports and letters. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/docx_to_markdown.

NFT holdings for any wallet on Base, Ethereum, Arbitrum, Optimism or Polygon, grouped by collection with counts, a sample item and image, OpenSea floor price and an estimated floor value. Spam NFTs are excluded.

Multi-chain wallet portfolio: every token a wallet holds on Ethereum, Base, Arbitrum, Optimism and Polygon (or Solana) with live USD prices, value per token and per chain, and the total. Spam tokens without a price are filtered out.

US energy prices from the EIA: retail gasoline and diesel, WTI crude, Henry Hub natural gas, crude oil inventories and residential electricity prices by state, with the latest value and change.

Aviation weather for airports: latest METAR decoded (flight category VFR/IFR, wind, gusts, visibility, ceiling, clouds, temperature, altimeter) plus the TAF forecast, for up to 10 ICAO airport codes.

UK company records from Companies House: status, type, incorporation date, registered address, SIC codes, overdue accounts, insolvency and charges flags, current officers, persons with significant control (owners) and recent filings. Search by name or company number.

Solana wallet history in plain language: recent transactions decoded into readable descriptions (swaps, transfers, NFT sales and mints, staking) with the SOL and token amounts in and out, counterparties, fees and explorer links. Filter by type.

Air quality near any place from nearby monitoring stations (OpenAQ): PM2.5, PM10, ozone, NO2 and more, with a US AQI and health category.

Document to Markdown (auto-detect): Convert any document to Markdown with automatic format detection. One endpoint for pdf, docx, pptx, xlsx, csv, epub, html and plain text — provide a URL or base64 bytes and the type is detected from the file contents. Spreadsheets return both a Markdown table and a JSON array of rows. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/document_to_markdown.

PDF to Markdown: Convert a PDF document to clean, LLM-ready Markdown. Provide a direct URL to the PDF or base64-encoded file bytes. Auto-extracts headings, paragraphs, lists and tables. Ideal for feeding reports, papers and contracts into RAG pipelines. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/pdf_to_markdown.

EPUB to Markdown: Convert an EPUB e-book to clean Markdown. Provide a direct URL or base64-encoded file bytes. Chapters become headings; metadata (title, author) is included. Feed whole books into LLM context or RAG. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/epub_to_markdown.

XLSX/CSV to Markdown + JSON: Convert an XLSX spreadsheet or CSV to Markdown table AND a JSON array of row objects in one call. Provide a direct URL or base64-encoded file bytes. All sheets are included; multi-sheet workbooks are flattened in sheet order. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/xlsx_to_markdown.

PPTX to Markdown: Convert a PPTX (PowerPoint) presentation to Markdown. Provide a direct URL or base64-encoded file bytes. Each slide becomes a heading with its text content — pitch decks and slide reports become LLM-readable text. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/pptx_to_markdown.

Satellite image of any place on any date from NASA (daily true-color MODIS or VIIRS, or night lights), centered on a place or coordinates with your choice of area size. Good for storms, smoke, fires, snow and floods.

US college facts from the Department of Education College Scorecard: admission rate, tuition, average net price, graduation and retention rates, median earnings 10 years after entry and median debt.

US campaign finance from the FEC: candidates and committees matching a name with party, office, state, status and their latest totals (money raised, spent, cash on hand, individual contributions), with links.

US Congress bills: search bill text by keywords (GovInfo), or pass a bill id such as hr1-119 for its title, sponsor, cosponsors, policy area, latest action and recent actions (Congress.gov).

Compare current air quality across 2-8 cities: US AQI, category, PM2.5, PM10, ozone and NO2 from the nearest active monitors, ranked cleanest to most polluted.