All projects on Base matching “options”

Ensembl gene symbol/ID lookup (keyless). POST {symbol} with optional {species?} or {id}. Empty → 404 not charged.

Generate YouTube thumbnails with AI image models (GPT Image, Nano Banana, FLUX, Seedream, Ideogram, Grok) side by side. Optional query: models (comma-separated ids from https://thumbnailcreator.ai/llms.txt), n (1-4 per model), format (16:9, 1:1, 9:16, 4:5). Body: {"prompt": "3-2000 characters"}. Charged only when every image succeeds.

Base mainnet gas price via public RPC (keyless). eth_gasPrice (+ optional latest block). Data only — not advice.

UN Comtrade public preview trade data (keyless). POST {reporterCode,period,partnerCode,cmdCode,flowCode} (+ optional typeCode/freqCode/clCode/maxRecords). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New trade vertical; no catalog adjacency.

Deterministic, paid-per-render SVG bar chart generator for LLM agents. Accepts labeled scalar data and layout options, performs exact geometry math (min/max normalization, nice-interval y-axis ticks, label spacing, bar-width distribution), and returns schema-valid, escape-correct SVG with identical input always yielding byte-identical output.

x402 preflight: before your agent signs a payment, fetch a paywalled URL's 402 and lint it. Parses v1 bodies and v2 PAYMENT-REQUIRED headers, then checks each accepts[] option: known network, canonical USDC, EIP-712 domain (extra.name/version) that a signature will verify against, EIP-55 payTo, zero/contract payTo, amount sanity, timeout, testnet, resource-host mismatch. Returns ok/warn/block per

Transcribe a public HTTPS audio or video URL into structured JSON with timestamps, optional speaker diarization, confidence metadata, and actual-duration settlement.

Transfer logs for one token contract, optional holder filter, amounts decoded with token decimals, read-only.

Search public importer and supplier records on ImportYeti, built from shipment data, by company, supplier, product or address phrase: name, type, country, address, total shipments, most recent shipment, top suppliers and customers, trademarks and other names; filters for importers or suppliers, latest shipment within 6 or 12 months and minimum shipments; optional details add trade partners, HS cod

Mezo MUSD mainnet (eip155:31612) immutable fixed-token pinned ERC20 symbol/decimals/totalSupply/code hash, and optional owner/spender public balance/allowance. Complete strict public Mezo read before 0.01 native Circle Base USDC signed x402 payment. Not a backing/peg/yield/bridge-audit claim. No keys, transactions, balances moved or payer self-purchase.

Free facilitator for Base, with an optional self-hosted Docker deployment.

Majority winner from a list of votes. Body: { votes: ["yes","yes","no"] }. Optional minShare 0–1.

Validate JSON against an optional schema, canonicalize it, and return a SHA-256 fingerprint

Verify a Base (mainnet, default) or Base Sepolia transaction is a successful, confirmed transfer of native Circle USDC (not a look-alike token) to an expected recipient for an exact or minimum amount. Checks receipt status, canonical block, confirmations, optional payer, notBefore/maxAge windows; returns verdict valid|invalid|pending|not_found with machine-readable reasons and the matched Transfer

Check current product stock and availability from a public ecommerce webpage, including optional variant-specific availability.

Page to JSON: scrape and extract any public web page URL into clean structured data JSON. Web scraper / HTML-to-JSON extractor / readability parser for AI agents and LLMs: returns title, author, site name, published date, main article text (plain text), word count, up to 200 links and an optional short summary. Web scraping, content extraction, metadata extraction, article parsing, crawl, RAG inge

Verify that a Base mainnet transaction paid at least N USDC to an address (optionally from a given sender, with K confirmations). Returns matched transfer, block time and confirmations. Read-only.

Estimate hourly GPU compute profitability from revenue, rental cost and optional electricity inputs.

Multi-carrier package tracking. Live: FedEx, USPS, DHL. In rollout: UPS. Roadmap (returns 'coming soon' to log demand): Canada Post, La Poste, Royal Mail, Australia Post, Evri, Deutsche Post, PostNL, China Post, Japan Post, India Post, Correos, Poste Italiane, Aramex, Yodel, Swiss Post, Correios BR, EMS, OnTrac, Amazon Shipping. Pass tracking_number (and optional carrier='royal_mail' style slug).

Search scholarly papers (OpenAlex index of 250M+ works). Returns up to 25 results with title, authors, year, venue, DOI, citation count, open-access PDF link, abstract (reconstructed from OpenAlex's inverted index; may be null when the publisher withholds it) and OpenAlex id. Optional from_year / to_year / open_access_only filters. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.or

Decision-ready GPU rental cost report for 24-720 GPU-hours. Avoid paying $30 more for a 24h H100 rental. Compare spreads, uptime, and get a rent/hold decision. Returns cheapest and recommended A100/H100/RTX offers, price spread, estimated cost at your hours, 7-day history and a rent/don't-rent call - not just a price list. GET ?model=A100&hours=24, optional compare=H100 and format=markdown; $0.10

Binary Kelly stake from your p_yes and venue ask/bid, optional fee_bps and fractional Kelly. Pure compute — you supply prices.

Fetch any public web page and return clean, LLM-ready Markdown of the main content (boilerplate, nav and ads removed) plus title, byline, site name, language, publish date and word count. Optional absolute link list.

Current gas price on Base from public RPC (wei + gwei). Optional query network=base for schema probes. e.g. GET /v1/gas/base

Mint 50,000 Whiz402 tokens (Budget option)

Live hosting/VPS provider comparison data (price, type, best-for, cheapest) as JSON for autonomous agents. GET, optional ?cheapest=managed|unmanaged.

Calculate real estate investment metrics from property financials. Required: purchase_price, monthly_rent, down_payment_percent. Returns cap_rate, cash_on_cash, DSCR, gross_rent_multiplier, monthly_cashflow, mortgage, expenses, and annual_noi. Optional inputs have smart defaults (7% rate, 30yr term, 8% vacancy, 10% management). Not financial advice.

Address Watch for 30 days: every confirmed transaction paying to or spending from one Bitcoin address, in a private feed (web, JSON, RSS) and as phone push (ntfy). Optional feed=<id> adds the address to, or extends it in, an existing feed. Returns the feed links.

Argentine consumer price inflation from INDEC: latest monthly %, year-over-year %, last 12 months, and optionally the compounded cumulative inflation between two months with an amount adjusted for inflation (rent, salary, price updates). Send {} or {from: YYYY-MM, to: YYYY-MM, amount}. Source failure = no charge.

Technical SEO audit of one page: HTTP status, redirect chain, title and meta description length, H1 count, canonical, robots meta, hreflang, Open Graph and Twitter tags, JSON-LD types, images without alt text, link counts, security headers (HSTS, CSP, X-Frame-Options), technology detection (CMS, framework, analytics, CDN) and a prioritised issue list with a 0-100 score. Static HTML only; honours r