x402 web tools

Endpoints (368 live)

• payai.agentstools.dev GET /btc/fees — Recommended Bitcoin transaction fee-rates in sat per vByte across five confirmation horizons (fastest, half hour, hour, economy, minimum) plus a live mempool congestion snapshot with an estimated block backlog. Informational, not advice. (0.005 USDC on Solana)
• payai.agentstools.dev GET /mining/capitulation — Bitcoin hash-ribbon miner-capitulation signal: the 30-day versus 60-day moving average of network hashrate, whether miners are in capitulation, whether a recovery cross has occurred, and the 30-day hashrate trend. Informational, not advice. (0.008 USDC on Solana)
• payai.agentstools.dev GET /btc/mempool — Live Bitcoin mempool snapshot: unconfirmed transaction count, total virtual size and total fees, a fee-rate histogram broken into buckets, and an estimated block backlog. Informational, not advice. (5000 on Base)
• api.agentstools.dev GET /lending/liquidations — On-chain DeFi liquidation telemetry for Base lending protocols: recent LiquidationCall events decoded by us from public Base event logs — count, total debt repaid and collateral seized (USD), estimated liquidation bonus, per-protocol and per-asset breakdown, and the recent events (user, liquidator, collateral, debt). (0.05 USDC on Base)
• payai.agentstools.dev GET /treasury/statement — The US Monthly Treasury Statement: federal receipts, outlays and the deficit or surplus for the latest month and fiscal year to date, fused with interest expense. Computes the deficit change year over year and interest expense as a share of receipts. Cited to Treasury Fiscal Data. (20000 on Base)
• api.agentstools.dev GET /rwa/yield — Yield facet for a tokenized-RWA product: pool-level APY, base APY, reward APY, the 30-day mean APY and the 30-day change, plus a TVL-weighted average across the product's pools, from the DefiLlama yields feed. Reports availability false when the product has no tracked pools. Cited to the open-data source. (0.008 USDC on Base)
• payai.agentstools.dev GET /energy/electricity — US electricity data from the EIA grid monitor and retail survey: generation mix by fuel type with percentage breakdown (latest hour), demand by region, and average retail price by state/sector (monthly). (8000 on Base)
• payai.agentstools.dev GET /market/report — Rich cross-source market report for 50+ assets (crypto, stablecoins, forex, metals): Chainlink + DEX pools, TVL-weighted VWAP, total pool TVL, recent change and volatility — all computed by us from on-chain state. (0.05 USDC on Solana)
• payai.agentstools.dev POST /quant/risk — Portfolio risk metrics over an array of periodic returns: value-at-risk, conditional VaR, Sharpe, Sortino, max drawdown, Calmar, volatility, and more. Pure computation over your inputs. (0.003 USDC on Solana)
• payai.agentstools.dev GET /trade/tariff — Estimate the effective US import duty for one HTS code from one origin country. Returns the base rate (MFN or FTA), the additional trade-war layers (Section 301, Section 232, IEEPA) with their Chapter 99 provisions, the combined effective rate, and an optional landed-cost estimate. (0.03 USDC on Solana)
• payai.agentstools.dev GET /screen/address — Check whether a crypto address appears on the official public sanctions lists (OFAC SDN, UK, EU, UN). Deterministic exact lookup; returns the matched record (list, program, entity name, reference, currency). (3000 on Base)
• payai.agentstools.dev GET /energy/natural-gas — US natural gas data from the EIA: Henry Hub spot price (daily) and weekly working gas in underground storage (Bcf, Lower 48 or region). Returns latest value, change vs the prior period (week-over-week for storage), and short history. Source: U.S. Energy Information Administration. (10000 on Base)
• payai.agentstools.dev GET /agri/signal — USDA NASS production and grain-stocks signal for a commodity: the QuickStats production and stocks series computed into context - production and stocks year-over-year change and history percentiles. When a USDA Market News key is configured it also folds in the spot/auction price and its change; without one it returns the NASS side and notes the gap. (30000 on Base)
• payai.agentstools.dev GET /fraud/ip — Reputation of a public IP address for anti-abuse and KYC. Returns ASN, AS-org, country, datacenter/hosting classification, Tor-exit and Spamhaus DROP flags, plus a deterministic risk score with reasons. (0.005 USDC on Solana)
• payai.agentstools.dev GET /dev/package — Package intelligence across npm / PyPI / crates: latest version, age, release cadence, deprecation/yank, license, and download stats (last day/week/month) with a rising/falling trend. Aggregates the official registry + downloads API + deps.dev. (5000 on Base)
• payai.agentstools.dev POST /crypto/abi — ABI-encode a function call (selector + args) or encode/decode arbitrary ABI types — build and parse EVM calldata correctly. (3000 on Base)
• payai.agentstools.dev GET /crypto/sentiment-tag — Composite crypto market sentiment: the Fear & Greed index (value, classification, trend) blended with aggregated news-headline sentiment into one bullish/bearish/neutral score, optionally focused on a coin or query. Data by alternative.me (attributed) + curated RSS headlines. (0.003 USDC on Solana)
• payai.agentstools.dev GET /entity/resolve — Resolve one legal entity across three public registries from a single identifier. Give exactly one of name, ticker, cik, lei, qid or isin and get back the reconciled set of ids (SEC CIK, GLEIF LEI, Wikidata QID, ISIN, ticker, EIN) plus legal name, jurisdiction and status, with per-id provenance and an optional GLEIF parent/child hierarchy. (0.02 USDC on Solana)
• payai.agentstools.dev GET /safety/product — Product recall and safety check for a consumer good, food, drug or medical device by brand or product name. Fuses CPSC and openFDA recalls into one cited JSON with hazard, FDA class, remedy, status and a deterministic risk score. Risk indicators, not advice. (20000 on Base)
• payai.agentstools.dev GET /crypto/convert — Convert token units (wei/gwei/ether or arbitrary decimals), between hex and int, and compute/validate an EIP-55 checksummed address. (0.001 USDC on Solana)

+348 more endpoints.