List all available hyperD x402 API endpoints with their prices, descriptions, and example responses. FREE — no wallet required. Use this to discover what tools are available before configuring a wallet.

Get the current price list for all hyperD paid endpoints (in USDC on Base). FREE — no wallet required.

Check the health of the hyperD API: which network it's on, whether the payment facilitator is configured, which optional backend keys are wired, and cache stats. FREE — no wallet required.

Get the on-chain balance for an EVM wallet address. Multi-chain (Base, Ethereum, Polygon, Arbitrum). Supports ERC-20 by symbol or contract address. Pass chain='all' for parallel multi-chain lookup. Costs $0.01 in USDC on Base.

Get an opinionated DeFi yield recommendation. Filters DefiLlama's pool universe by risk tier (low/medium/high), TVL, and IL exposure, then ranks by APY. Returns the top picks plus projected $ yield over your duration. Costs $0.05 in USDC.

Get aggregated token metadata: market cap, supply, contract addresses across chains, recent volume. One call replaces multiple CoinGecko / Etherscan / DefiLlama lookups. Costs $0.01 in USDC.

Get a token's security risk score (0-100). Ensemble of GoPlus signals: honeypot detection, owner permissions, holder concentration, buy/sell taxes, source verification. Returns score, band (safe/caution/warning/danger), and structured findings. Costs $0.05 in USDC.

Check a wallet's risk profile. Combines Chainalysis Sanctions Oracle (OFAC SDN authoritative) with GoPlus address heuristics (mixers, phishing, scams). Returns sanctioned flag + 0-100 heuristic score. Costs $0.10 in USDC.

Get a DeFi protocol's TVL, audits, chain distribution from DefiLlama. Pass slug for detail (e.g., 'aave', 'morpho-blue') or list=true for top 50. Costs $0.01 in USDC.

Get current gas price + base fee + tip percentiles for fast/standard/slow inclusion. Costs $0.005 in USDC.

Get the best DEX swap route across multiple aggregators (Paraswap + 0x). Returns the highest output amount and per-source quotes. Costs $0.02 in USDC.

Classify a wallet's persona based on on-chain behavior. Returns one of: Trader, HODLer, MEV-bot, Whale, Smart-Money, Airdrop-Farmer, Compromised, Inactive — plus confidence and supporting signals. Costs $0.10 in USDC.

Pre-trade contract security audit. Composes GoPlus + Sourcify + DefiLlama protocol recognition + on-chain heuristics into a single 0-100 risk score with structured findings. Use BEFORE interacting with any unfamiliar contract. Costs $0.10 in USDC.

Summarize a DAO governance proposal (Snapshot or Tally URL). Returns structured impact analysis: who benefits, who pays, recommended position. LLM-summarized. Costs $0.10 in USDC.

Get a token's sentiment score (0-100) from recent Farcaster discussion. Returns score, band (very_negative to very_positive), volume, trend, sample casts. Costs $0.05 in USDC.

Cross-protocol liquidation risk for a wallet's lending positions. Health factor, USD-at-risk, and recommendations across Aave V3, Compound v3, Spark Lend, and Morpho Blue. Pass chain='all' for cross-chain aggregate. Costs $0.10 in USDC.

Wallet behavioral anomaly detection. Compares recent activity against the wallet's own 180-day baseline — surfaces tx-volume spikes, dormant-wakeup patterns, new-protocol interactions, counterparty diversification. Catches compromised hot wallets, dormant whales, MEV-bot strategy shifts. Costs $0.10 in USDC.

Realized + unrealized P&L for a wallet over a time window. ERC-20 + native, single chain per call. Three cost-basis methods: FIFO (default, IRS standard), LIFO (last-in-first-out), HCFO (highest-cost-first-out, tax-loss-harvesting view). Per-token breakdown with weighted-avg cost + mark-to-market. Unpriced trades and untracked-proceeds gaps surfaced honestly under coverage.* fields. v1.0 defers per-tx gas-fee USD attribution. Costs $0.05 in USDC.

Agent spend visibility: aggregates recent outbound USDC transfers from a wallet over a configurable window (1h/24h/7d/30d). Returns total spend, by-destination breakdown, projected-24h rate, and an optional under_cap flag if cap_usd is provided. Use this BEFORE initiating the next paid x402 call to enforce a self-imposed budget. Bridged USDC.e variants are NOT counted. Costs $0.01 in USDC.

Bundle multiple paid GET calls into one x402 settlement. Up to 10 sub-calls executed in parallel (concurrency cap 4), per-call results returned in a structured envelope. Fixed $0.20 USDC — typically cheaper than à la carte for any combination summing > $0.24 individually. Best-effort execution: failed sub-calls don't refund in v1.0 (credit ledger planned for v1.1). Use this when you need 3+ paid calls and want to save on facilitator round-trips.

Subscribe to a continuous watch on a wallet/position. Returns watch_id and webhook_secret (shown ONCE — store it; we cannot recover it). HMAC-SHA256 signed alerts POSTed to your webhook_url when threshold conditions are met. v1.0 supports liquidation watches across Aave V3 / Compound v3 / Spark / Morpho. $3.00 USDC prepays for duration_days (default 30, max 90).

List the active watches owned by your wallet. $0.001 USDC ops fee — covers the x402 auth path that proves wallet ownership (without it, the server can't tell which wallet is asking). webhook_secret is NEVER returned — store it from the create response.

Cancel a watch you own. $0.001 USDC ops fee covers the x402 auth path. Returns 404 (not 403) if the watch_id doesn't exist OR if you're not the owner — no existence-leak side-channel.