Documents & files

PDF from HTML or Markdown, OCR, email validation, image conversion and hosting, QR and barcodes.

OCR extraction from scanned PDF documents (English). Uses Tesseract to read text from image-based pages that have no embedded text layer. Returns structured text and metadata. Ideal for invoices, receipts, contracts, and legacy documents. $0.05 per extraction.

+3 more from visual.hugen.tokyo

Why is my bread dense? Hollandaise split? Rice gluggy? Send a dish and a symptom; get the likely cause and head chef Cristopher's verified fix. Answered: bread or pizza dough dense, hollandaise or bearnaise split, rice mushy, mash gluey, roast veg soggy, seared meat grey, caramel grainy, pastry shrinking, muffins tough, chicken breast dry, garlic bitter. Refused, never guessed: allergens, storage, leftovers, reheating, safe temperatures. Only a 200 answer is charged; refusals and 404s are free.

News Gurus Intel API — recent dark-pool prints as derived signals: symbol, direction, strength, confidence, size_bucket. Example: AAPL bullish, strength 0.6, size_bucket large, 1D. Block/large/mid/small buckets flag institutional-scale accumulation or distribution without redistributing raw notional or price data. Lookback ?hours= (default 48). Educational data, not financial advice.

Sniff which structured format an unknown document is. Because formats overlap, returns every plausible format with a 0–1 score plus the best guess — honest about ambiguity rather than pretending certainty.

Hourly electricity generation by fuel source for any US balancing authority, with the carbon-free share computed from wind, solar, hydro, nuclear and geothermal. Storage is excluded from both sides because discharging shifts power rather than generating it, and "other/unknown" is never counted as clean - so the share errs low. Method returned with the numbers.

Converts any URL (PDF, webpage, Google Doc) to clean Markdown with optional AI summary. $0.05/convert via x402 on Base.

Convert files asynchronously for AI agents. Supports PDF to DOCX, JPG to PNG, HEIC to JPG, document conversion, image conversion, audio conversion, and video conversion. Common formats include PDF, DOCX, XLSX, CSV, JPG, JPEG, PNG, WEBP, HEIC, TXT, HTML, MP3, WAV, MP4, AVI, MPEG, and WEBM.

AI vision: describe any public image, including visible text (OCR-lite).

Create a temporary public HTTPS download URL for an artifact generated by an agent or tool when the sending and receiving systems do not share storage. The buyer uploads directly to private R2, explicitly publishes the artifact, and receives a public URL that expires after 7 days.

Resize, crop, compress, convert (WebP/AVIF/JPEG/PNG/GIF), optimize, and transform images from a natural-language instruction. Remove backgrounds, make thumbnails, srcset variants, icon sets, watermarks, GIF edits, Shopify-ready product images. Up to 12 named variants per request as a ZIP, or base64 data URI output. Every constraint is verified against the real output bytes before payment settles; failures are never charged.

City Table Clean: send a Socrata or CKAN city open-data CSV URL (or upload) and get back a cleaned CSV plus a change report: trimmed whitespace, normalized headers, ISO dates, plain numbers, de-duplicated rows, and a per-cell change log.

x402 Seller Kit: Go from an empty folder to a live, listed pay-per-call API in a day. Returns a download link for the product file.

Resume a task: read back the latest version of every key you wrote under a given taskId via /api/agent-memory, or that another agent explicitly granted you read access to. Priced below a write on purpose -- reads are cheaper than writes here; this price is a provisional first cut, not a settled policy.

See which operations were added, removed, deprecated or renamed between two OpenAPI documents. Flags a removal that was never preceded by a deprecation, an operationId change that renames the method in every generated client, and a duplicated operationId that no generator can resolve.

Validate a fixed JSON CSV column specification before assigning extraction or checking deliveries. Send typed column settings in requirements; returns the validated spec for /v1/accept/csv. Rejects unknown fields and unsupported settings. This checks the specification itself, not CSV data. No custom expressions, cross-column rules or prose-to-rule conversion. Schemas/examples attached; full contract: /openapi.json.

Call when you want every curated Playbook skill as full SKILL.md files in a single response — the complete library (creator + operator + life packs) in one purchase. $0.15

Convert a measurement without losing declared uncertainty: one decimal value and standard uncertainty across supported length, mass, time or temperature units using exact rational scale/offset arithmetic. No unit guessing, physical validation or expanded uncertainty.

+1 more from Unit and Uncertainty Conversion

$0.01/screenshot. Screenshot any public web page to PNG/JPEG/WebP — headless Chromium, SSRF-guarded. 155 tools, one balance — relaystation.ai

Convert an amount of a crypto asset to USD using the live Chainlink price on Base. Pass ?from=ETH&amount=1.5 (assets: ETH, BTC, SOL, LINK, CBETH, AERO, EUR). Returns the rate used, the feed and its age. Oracle value, not a tradable quote. No cache.

+1 more from oraclepost.higgsfield.app

$0.003/call. Render HTML to an image — sandboxed headless Chromium screenshot of your markup. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0005/MB. Re-encode audio to another format, bitrate, or sample rate — mp3, aac, wav, flac and more. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.001/page. Rasterize PDF pages to PNG or JPEG — previews, thumbnails, vision-model input. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Compare up to 128 expected passage bindings with up to 128 retained descriptors by passage ID, parent document, version hash and chunk hash. Flags omissions, substitutions, repeats and ordering gaps. Public/synthetic metadata only; does not inspect prompts or prove what a model saw or used.

+1 more from Context Passage Manifest Check

Check selected versions of up to 40 declared documents against up to 100 effective-date records at one assessment time. Flags inactive, unknown and missing selections; overlapping active versions remain ambiguous. Public/synthetic metadata only. No inferred amendment graph, legal effect or source validation.

$0.08/document. Ask natural-language questions of a document and get grounded answers (Textract Queries) — no OCR pipeline to build. 155 tools, one balance — relaystation.ai

$0.0002/call. Convert colors between hex, RGB, and HSL — exact values back as JSON. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.001/page. Split a PDF by page ranges or burst it into single pages. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Convert length, mass, volume, data-size, time, speed, or temperature between units.

Fresh probe of your endpoint plus an Ed25519-signed quality attestation (compact JWS, 24h TTL) you can embed in your 402 responses to raise buyer conversion.