ETH multi-exchange IV surface with divergence detection — Ed25519 signed attestation

SOL options Greeks — Bybit native Greeks for 246+ options — Ed25519 signed attestation

Solana SVI volatility surface parameters — stochastic vol interpolation for options model calibration — Ed25519 signed attestation

BTC options Greeks — cross-exchange consensus delta/gamma/theta/vega from 2130+ options across Deribit, OKX, Bybit — Ed25519 signed attestation

BTC multi-exchange IV surface — per-strike IV from 3 exchanges with cross-exchange divergence detection and mispricing alerts — Ed25519 signed attestation

MESI — Mycelia Equity Stress Index. VIX, VVIX, IV/RV ratio, credit stress, DXY momentum. 0-100 composite. 300s cache. — Ed25519 signed attestation

Generate cryptographically random passwords. ?length=8..128 (default 24), ?symbols=true|false (default true), ?count=1..20.

All DeFi lending rates — 7 protocols, 7 chains, on-chain — Ed25519 signed attestation

Ethereum spot-futures basis and annualized carry — cross-venue arbitrage signal for basis traders — Ed25519 signed attestation

Can I settle this debt for less than I owe, and how do I negotiate it myself? DIY debt-negotiation protocol with FDCPA consumer rights, creditor call scripts, estimated settlement percentages, and statute-of-limitations by debt type. For personal-finance and debt-help agents.

Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week — optionally rendered in any IANA timezone via ?tz=.

BLS Public Data API — wages, employment levels, growth by series ID. Federal public, free. Optional BLS_API_KEY for higher rate-limits.

TradFi Regime — classifies equity market regime from MESI, MNVI, and US yield curve. Outputs RISK_ON/NEUTRAL/STRESS/PANIC with confidence and dominant signal. Layer 2 Oracle Information. — Ed25519 signed attestation

EUR/JPY forex exchange rate — euro to Japanese yen cross rate — Ed25519 signed attestation

Proposed/final rules and notices from a federal agency — the regulatory pipeline that reprices sectors. Pass `?agency=securities-and-exchange-commission` (slug) and/or `?q=` (at least one), plus `?type=all|rule|proposed|notice` and `?limit=` (max 100). Each doc has number, type, title, abstract, dates, agencies, and a link. From x402stock, a market & economic data API (x402, USDC).

Create a signed JWS receipt containing payload hash, result hash, timestamp and validation results.

Token count / tokenizer estimate / GPT-4 token count / Claude token count / Gemini token count / context-window pre-flight. Pure-local heuristic estimator targeting cl100k_base / o200k_base (GPT-4o) with calibrated multipliers for Claude and Gemini. Input model name is matched against an internal table of supported tokenizers. Accuracy ±5% versus tiktoken on typical English. No upstream call.

Check token amount decimals, dust, unusually round/precise values and mismatch against a stated invoice amount.

Citation verifier / fact-check against URL / does-this-source-support-this-claim / hallucination detector. Fetches a source URL (HTML stripped, 100KB cap), and asks Venice claude-sonnet-4-6 whether a given claim is supported, contradicted, or absent. Returns verdict, confidence (0-1), and the strongest evidence quote when available.

Normalize a phone number to E.164 with bundled offline country dialing metadata.