Blockchain And Crypto x402 offerings

Current token prices from DefiLlama. Query: coins — a comma list of coin ids like coingecko:bitcoin or <chain>:<address> (up to 50). Each: price, symbol, timestamp, confidence. Prices move — poll it.

Historical OHLC candles for a crypto pair (e.g. BTC-USD) — for technical analysis and backtesting. Query: pair; granularity (1m, 5m, 15m, 1h, 6h, 1d — default 1h); limit (1-300, default 100) for the latest window, OR start & end (ISO8601 or unix secs) for a backtest range paginated server-side up to 3000 candles — months of history in one call. Returns candles oldest->newest, each {t, o, h, l, c, v}. Real-time from Coinbase.

One call, the whole market: an LLM-written crypto briefing fusing live headlines, perp funding, Fear & Greed, trending coins, and prediction-market odds — all from this server's own live feeds. Query: none required. Returns {as_of, brief, data: {sentiment, top_funding, trending}}. The morning-briefing loop, done for you.

AI agent agent reliability score (300-850). Submit behavioral signals or retrieve score. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

FINRA BrokerCheck broker/advisor registration status and disclosure history. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

Federal contract market intelligence by NAICS (USAspending): top incumbents + buying agencies + total obligated. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

Find self-certified SDVOSB/WOSB/SDB/minority firms by NAICS + state (SAM.gov). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

FDA warning letters — regulatory enforcement letters for violations of FDA regulations. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

Live U.S. federal grant search (Grants.gov Search2). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

NIH Reporter research grant database — active NIH grants by keyword and agency (NCI, NHLBI, NIAID, etc). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

SBIR/STTR small business innovation research grants. Search by keyword, agency (DOD, NIH, NASA, NSF). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

Equities RSI(14) heatmap (up to 20 tickers) with a 4-agent swarm verdict (LLM mode when an Anthropic key is configured; otherwise the swarm runs in its labeled heuristic mode). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

SEC EDGAR 13D and 13G activist investor filings by ticker — who holds 5%+ stakes. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

USPTO PatentsView patent search — title, abstract, assignee, CPC class, grant date. Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.

HostDeFi rug/collapse ledger: dated gate-exit records with peak liquidity/holder stats, newest first

HostDeFi x402 provider-risk dataset: every crawled seller and resource with grade, score and reasons

Free token-safety scans + paid x402 verdicts, signals, radar & EVM swap quotes for AI agents.

Polymarket prediction markets HostDeFi tracks: market ids, questions, latest yes/no odds and sampling stats from HostDeFi's own recorded series

Free token-safety scans + paid x402 verdicts, signals, radar & EVM swap quotes for AI agents.

Exchange listing and delisting announcements from Binance and OKX in the last 30 days, new Coinbase trading pairs detected the moment they appear (and pairs that go offline), and the most-voted active DAO governance proposals on Snapshot. Refreshed every 15 minutes. Rebuilt every 15 minutes. $0.02 per call, no account. Free 24h-delayed sample: GET https://ioswarm.io/api/v1/feeds/crypto-listings/sample.

Exchange listing and delisting announcements from Binance and OKX in the last 30 days, new Coinbase trading pairs detected the moment they appear (and pairs that go offline), and the most-voted activ…

Verify an IOTA notarization: give the object id or transaction digest of any notarization on the IOTA mainnet (ours or anyone's, official IOTA Notarization package) and optionally the text, SHA-256 or URL to check. Returns the stored hash or data, creation time from the ledger, lock status (can it be changed or deleted), owner, and matches true or false for your content. Read-only, no wallet needed.

Proof of existence on the IOTA mainnet: send text, a SHA-256 hash or a URL and get a tamper-proof timestamp. We store only the SHA-256 (never your content) in a locked notarization of the official IOTA Notarization package: it cannot be changed or transferred and its deletion is locked until 2106. Returns object id, transaction digest, ledger time and explorer links. Use for contracts, invoices, AI outputs, datasets, web page evidence or audit logs. Check later with iota-verify.

IOTA mainnet in one call: epoch, latest checkpoint, reference gas price and the fee of a simple transfer, total and circulating supply, IOTA price and market cap, total stake and every active validator with staking APY, commission and stake, sorted by APY. Use to pick a validator or to show network health.