Sift Web Tools

Endpoints (32 live)

• GET /v1/audio/normalize — Normalise audio loudness to a broadcast or streaming target, file returned. Linear two-pass EBU R 128 loudness normalisation to a named target (ebu_r128, atsc_a85, ebu_r128_short, podcast, spotify, youtube, apple_music, amazon_music, deezer, aes_streaming, audiobook_acx) or custom lufs/true_peak. Returns the corrected file (wav, wav16, flac, mp3, m4a, opus) with before/after figures in X-Loudness-Report. (0.02 USDC on Base)
• GET /v1/geo/convert — Convert and reproject map files (GeoJSON, shapefile, CSV, GPX, KML). Spatial file in, spatial file out: reads GeoJSON, zipped shapefile, CSV, GPX or KML and writes GeoJSON, CSV, WKT or zipped shapefile in any EPSG/PROJ/WKT system. Always longitude/easting first, reports the transformation and its accuracy in metres, and refuses data outside the target's area of use (spotting swapped lat/lon). (0.02 USDC on Base)
• GET /v1/tts — Text to natural speech (MP3 or WAV), 30 voices. Turns up to 1500 characters into natural speech with Google's Gemini TTS. 30 voices (e.g. Kore, Puck, Charon, Aoede). MP3 or WAV. (0.04 USDC on Base)
• GET /v1/image — Generate an image from a text prompt (PNG). Text-to-image with Google's Gemini image model. Aspect ratios 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9. Prompts refused by the model's safety filter are not charged. (0.08 USDC on Base)
• GET /v1/video/storyboard — Video scrub-bar storyboard: sprite sheets plus WebVTT thumbnail track (zip). Hover-preview thumbnails for a video player: sprite sheets capped at the device texture limit plus a WebVTT track whose cues use each frame's real timestamp, so they never drift. Handles phone rotation. Presets web_player, web_player_hd, mobile (WebP, 2048 cap), editor_filmstrip, contact_sheet. (0.02 USDC on Base)
• GET /v1/screenshot — Screenshot of a web page as PNG (headless Chromium). Renders a public page in headless Chromium and returns a PNG. Viewport width 320-1920, height 320-1600, optional full page. (0.01 USDC on Base)
• GET /v1/crypto/ens — ENS lookup: .eth name to address, or address to verified name. Resolves an .eth name to its address, or an address to its primary ENS name (only returned when the forward record matches). (0.001 USDC on Base)
• GET /v1/links — Extract all links from a page, split internal and external. Every link on a page with anchor text, deduplicated and split into internal and external. (0.002 USDC on Base)
• GET /v1/search — Web search with a grounded answer and source links (Google Search). Searches the live web with Google Search and returns a concise factual answer plus the source pages (title and real URL) and the queries used. Good for current facts, prices, news and docs. (0.06 USDC on Base)
• GET /v1/extract — AI extraction of named fields from any web page as JSON. Give a URL and comma-separated field names; get a JSON object with the best value per field, plus a list of records when the page lists many (products, people, events). (0.015 USDC on Base)
• GET /v1/dmarc/parse — DMARC aggregate report parser with real alignment checks (JSON or CSV). Reads a DMARC aggregate report URL (XML, .gz, .zip or the whole email). Computes SPF and DKIM alignment itself using the Public Suffix List, reports the receiver's verdict separately, flags disagreements, explains each failure in plain words, and rolls up pass rate, dispositions, failure modes and worst sources. (0.02 USDC on Base)
• GET /v1/metadata — Page metadata: title, description, Open Graph, Twitter card, JSON-LD. All metadata of a web page: title, description, language, canonical URL, favicon, Open Graph, Twitter card and JSON-LD structured data. (0.002 USDC on Base)
• GET /v1/geo/inspect — Inspect a map file: format, feature count, geometry types, extent, CRS. Reads a spatial file URL and returns its format, feature count, geometry types, extent, declared coordinate system and fields. (0.005 USDC on Base)
• GET /v1/ocr — Read text from an image (OCR), 7 languages. Optical character recognition on an image URL (png, jpg, webp, tiff, bmp, gif; up to 15 MB) with Tesseract. Languages eng, deu, fra, spa, ita, por, nld, combinable with + (e.g. eng+fra). (0.004 USDC on Base)
• GET /v1/doc-to-markdown — Convert Word, Excel, PowerPoint, PDF, EPUB or HTML to Markdown. Give a document URL (docx, xlsx, xls, pptx, pdf, epub, html, csv, json, xml; up to 30 MB) and get clean Markdown with headings, lists and tables kept. (0.004 USDC on Base)
• GET /v1/video/inspect — Inspect a video: duration, size, rotation and what a storyboard would produce. Reads a video URL (up to 200 MB, 2 hours) and returns codec, size, display rotation, aspect ratio, duration and the storyboard a preset would produce. (0.005 USDC on Base)
• GET /v1/dmarc/inspect — DMARC report summary: reporter, date range, policy, record count. Lists what a DMARC aggregate report contains (reporter, report id, dates, published policy, records, messages) without evaluating it. (0.005 USDC on Base)
• GET /v1/pdf — Extract text from a PDF URL, page by page. Text of a PDF (up to 25 MB, first 50 pages) page by page, with document metadata and a hint when the PDF is a scan. (0.004 USDC on Base)
• GET /v1/audio/analyze — Measure audio loudness (EBU R 128 LUFS, true peak, loudness range). Two-pass EBU R 128 measurement of any audio or video file URL (up to 100 MB, 30 min): integrated LUFS, true peak, loudness range, and the gain needed for 11 named delivery targets. (0.005 USDC on Base)
• GET /v1/summarize — AI summary of any web page with key points and topics. Fetches a public page and returns an AI summary (short, medium or long), 3-7 key points and topics. Uses only facts on the page. (0.01 USDC on Base)

+12 more endpoints.