All projects on Base matching “options”

Real-time SEC 8-K material-event alert with stock ticker: ticker, exchange, company, CIK, event, severity, EDGAR link. id=latest (optional ?severity=critical) or an accession number from free GET /filings. Not charged if no match. Items: 1.03 bankruptcy, 1.05 cyber incident, 4.02 restatement, 2.04 debt acceleration, 2.06 impairment, 3.01 delisting, 4.01 auditor change, 5.02 exec departure. Checked

KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict

Fetches live offers from a public bridge aggregator and reports for every option what arrives, what it costs in fees and gas, and how long it usually takes. The security model is given equal weight to the price: bridges are the most expensive failures this industry has, so trust_assumptions spells out who a user has to trust for that route to hold. No recommendation is forced - three best values b

Evaluate a mathematical expression with optional named variables — arithmetic, comparison and logic operators plus functions like sqrt, abs, min, max, sin, cos, log, floor, round, etc. A syntax error, an undefined variable, or a non-finite result is a clean 400. The factorial operator is disabled for safety.

Read official Base Uniswap V3 NFT and pool state at one canonical block hash. Reconcile exact token inventory and fee-growth checkpoints against optional reported raw amounts. Return signed discrepancies, reproducible inputs and uint128 accounting semantics. Recorded tokensOwed may include withdrawn principal, not only fees. Read-only; no USD valuation, trading, custody or profitability claim.

QSIG gold macro context, point-in-time: regime label, CFTC positioning with release time, FRED real yield and breakeven, GeoRisk and gold-linked theme stress, and the 5 nearest historical analogs. Optional as_of for backtests without look-ahead. Computed observation, not a forecast

Use Check for a changed/unchanged signal and optional compact text diff. Exactly one URL or existing watch ID; URL plus rules can create a watch, whereas watch_id reuses saved rules and forbids overrides. Use Smart Diff for structured changes. On-demand only; x402 $0.005 USDC on Base, including cache hits.

Ask a real person for a short written answer where human judgment matters: an opinion, a moral or social call, taste, or native-speaker intuition. Send 'question' (and optional 'context'); a human answers within 24 h. Add follow_up_of to continue a conversation with the same person. Not for facts or code. Declined or late requests are refunded.

Cheap web search for AI agents: give it a query, get up to 10 live web results back as JSON (rank, title, url, domain, snippet). Optional region (e.g. us-en) and safe-search level. Sources tried in order: DuckDuckGo, Bing, Yahoo. Results link to the live web; pair with a /read service to fetch the pages.

Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a short lived fetch URL, byte size, load time and the final HTTP status of the page.

WhiteMagic continuity-receipt verification: POST a signed receipt bundle and receive a verdict (TRUSTED / PROVISIONAL / INSUFFICIENT_EVIDENCE / UNTRUSTED) with coded errors and an optional signed verification receipt. Verification is stateless, offline-verifiable, and fail-closed; keyless /health, /info, /revocations and GET /anchors remain free.

Verify that a Base transaction paid what you expected. Give a tx hash; get status (success/reverted/pending), confirmations, from/to, ETH value, L2 fee and every ERC-20 Transfer decoded with symbol and decimals. Optional to, token and minAmount params return verified=true/false plus the matching transfer. Live data from Base RPC. Use it before delivering goods or crediting a deposit.

Categorize crypto/bank transactions with optional invoice matching and label interpretation

Evaluate a used car before purchase. Compares the asking price with up to 50 current dealer listings in Canada or the U.S., matched by year, make, model, mileage and optional trim/location. Returns robust median and quartile pricing, deal rating, confidence, sample size and risk flags. Use for fast used-car price checks.

Evaluate a chess position with Stockfish: best move, centipawn/mate score, principal variation, and optional multipv. No mocks — a real single-threaded Stockfish 10 (asm.js) runs in-isolate per call.

Use for source-backed Item 1A risk-disclosure changes for one issuer. Pass exactly one ticker or CIK; optionally filter by materiality (HIGH, MEDIUM, LOW) and classification. A successful nonempty request returns all matching RELEASE signals from the latest eligible frozen comparison in Signal Foundry, not necessarily the issuer's latest SEC filing. $0.05 USDC per request, not per signal.

Fast text-to-image with Flux 1 Schnell (@cf/black-forest-labs/flux-1-schnell). POST prompt and optional steps (1-8); fixed output size, no width/height. Returns base64 image output. Hero: GET /heroes/flux-schnell. Per-generation x402 pricing per USDC per request (see npm run pricing:report).

Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one donation and returns public feed links.

EU trademark search (EUIPO) — find registered and pending EU trademarks by name, optionally filtered by Nice class; returns trademark names, application numbers, status, owners, classes and key dates as clean JSON.

Use this when you need to share a file with another agent or a human: upload base64 content or a URL and get a short-lived, zero-log download link with TTL (15m–7d) and optional burn-after-reading.

Audit your x402 endpoint before buyers hit it. Checks that it answers 402 on the right method, that the payment options can actually be signed (EIP-712 domain of the token matches extra.name and extra.version), that the resource URL is the https URL buyers call, and that /openapi.json and /.well-known/x402 match. Includes the CDP validate verdict, whether the CDP Bazaar lists the endpoint, its pay

Convert a free-form address or place name into ranked coordinates with a structured, normalized address. Optionally bias by country and language.

Recent public municipal notices as clean items with source links ($0.005 USDC). area: buffalo (Buffalo Planning Board/ZBA agendas + Erie County tax-foreclosure auction docs) or chicago (City Council zoning reclassifications). Optional since (YYYY-MM-DD), keyword, kinds, limit. Cached public records; facts only, no advice; as is, no guarantee, inputs not retained; public source pages may be briefly

Fetch a public https URL, compute SHA-256 of the response body, and report whether it changed vs a prior sha256/etag ($0.01 USDC via x402). Sticky: store sha256 and call again later. Optional previous_sha256, previous_etag, include_body_if_changed. https only — http, file, data, localhost, and private IPs rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Returns JSON { url, final_url, cont

Fetch a public https CSV URL and parse it into headers + rows ($0.005 USDC via x402). https only — http, file, data, localhost, and private IPs are rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects, max 5000 data rows (truncated with warning). Optional has_header (default true). Returns JSON { url, final_url, content_type, headers, rows, row_count, warnings }.

Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. Network: Base Mainnet. Each request stores one sealed text capsule and returns a token for later retrieval.

Returns one IMF DataMapper indicator (e.g. NGDP_RPCH real GDP growth) for one or more countries, optionally limited to a year range. Output has unit, per-country series of {year, value, forecast_flag}, and a top-level forecast_flag. A point is a forecast when year >= the current UTC year.

Screen a regulated facility by name (and optional state) against EPA enforcement and compliance history. Returns inspections, violations, formal enforcement actions, penalties, significant-noncompliance flags, and a compliance score. Public-domain EPA ECHO Exporter data.

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

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.