x402 Finance API

Relays Hyperliquid HIP-4 prediction market data over x402: a catalog of outcomes with their metadata, and the settled result for a single outcome by id. Upstream payloads are relayed verbatim. Operated by x402 Atlas, not by Hyperliquid.

Paid API returning DeFi liquidation cascade risk for Morpho Blue and Aave V3 lending markets: at-risk positions, liquidatable collateral and a cascade risk score.

US sales tax calculation API for AI-agent commerce. Returns the combined state+local rate, taxability by work type, economic-nexus alerts and a confidence score for all 50 states + DC. Pay per call in USDC on Base via x402 ($0.005) or use an API key.

Real-time Hyperliquid BTC/ETH liquidation risk index built from live on-chain position data: notional at risk if price moves +/-1%/3%/5%, the closest position to liquidation, and current funding rate. Also serves backstop liquidation events, gas price, and other example x402 endpoints.

DeFi protocol risk score: TVL, hack history, audit status, contract safety, AI verdict, plus current supply/lending yields (APY)

Prediction market API for agents covering Kalshi and Polymarket events: browse events, markets, order books and trades, and create orders and manage positions, paid per call in USDC on Solana or Base.

One call returns risk-on or risk-off for the day, today's high-impact prints, and whether a watched show dropped. Price is 0.01 USDC on Base.

Pay-per-query API returning US macro data (Fed funds rate, curve yields and spreads, CPI and Core PCE, M2, GDP, unemployment, VIX, Fear and Greed index) together with a macro regime summary generated by a language model.

Pay-per-call API for crypto perpetual futures: funding rates ranked across roughly 100 Binance perp markets, the list of covered symbols, and the current Fear and Greed sentiment index, returned as structured JSON.

Resolves all 10,000+ US public stock tickers to SEC CIK numbers, recent 10-K/10-Q/8-K filings, and entity metadata.

Live crypto and market data for AI agents, paid per request in USDC on Base (x402 v2): liquidity magnets, order book walls, funding and open interest across 13 exchanges, liquidations, spot ETF flows, candles, chart patterns, the Owl Score, news and three ready packs (coin brief, trade setup, money flows).

Paid API returning a Hyperliquid account's trading state for any 0x address: perpetuals positions and margin, spot balances, HYPE staking, open orders, recent fills, portfolio history and fee tier. Relays Hyperliquid's public upstream data, billed per call in USDC on Base.

First comprehensive AML/CFT compliance oracle for the agent economy. Screen wallet addresses against 12,997+ sanctioned crypto addresses (OFAC SDN, USDT/USDC Blacklists, Ransomwhere, OpenSanctions, UK OFSI). Search 1.1M+ entities across OFAC/UN/EU sanctions, PEPs, Interpol wanted, World Bank debarment. 179-country jurisdiction risk scoring. Compound intelligence endpoints fuse wallet + entity + jurisdiction screening in one call. Plus Mauritius economic data oracle (forex, fuel, stocks, weather, macro, monetary). ERC-8004 Agent #27961 on Base. CDP Facilitator integrated.

BRS Signals is the science behind the ORE Signals daily plate - Bitcoin's market structure read live by three independent sensors (on-chain, off-chain, absence) every 30 seconds, with an auditable rejection funnel. Free tier, no card; $0.01/query via x402 (USDC, Solana or Base).

Tollbooth — 59 verified tax, finance, lending, real-estate, retirement, investing, crypto and business calculators for AI agents, paid per call in USDC on Base mainnet (no account, no API key; $0.01–$1.00 per call via the Coinbase CDP facilitator). Every answer ships a formula/method trace, cited sources with a 2026 data-vintage stamp, and a reproducible SHA-256 hash over the RFC 8785 (JCS) canonical fixed point {endpoint, inputs, result, method, dataVintage} that any client re-derives for free with POST /v1/verify-hash — recompute the math instead of trusting the server. Free golden-vector self-checks at /v1/golden/:id publish expected inputs, results, and hashes. Optional paid tier: Ed25519-signed audit-grade Verification Receipt (POST /v1/receipt/:id — $1 per call, $5 per report; a normal paid answer does not include it). Tollbooth authors Golden-Vector Provenance (GVP), a single-author draft provenance spec (Apache-2.0 code / CC-BY-4.0 spec): the npm package golden-vector-provenance is published (v0.7.0, matching git tag v0.7.0), and a spec PR carrying the field is under public review at x402-foundation/x402#3304 (discussion #3234). Payment-rail-agnostic by construction: the fixed point binds the question and the answer, not the settlement rail. Also a free neutral verifier for any service's response (POST /v1/gvp/check).

Pay-per-call PEPE-USDT-SWAP trading signals from OKX demo market. Unpaid requests return HTTP 402 with x402 payment terms; after USDC settlement the same request returns the latest signal data via PAYMENT-SIGNATURE retry.

Returns SEC Form 4 insider trades for a US stock ticker: buys and sells by officers, directors and 10% owners, with configurable lookback up to 365 days.

FilingDelta sells JSON cards that say what changed: material changes in a company's latest SEC filing (10-Q, 10-K, 8-K or 6-K), central-bank interest rate decisions (hike, hold or cut, with the vote where the bank publishes it) and US CPI, jobs and GDP releases. Each change carries a materiality rating, a citation and the source link. It's a change log, not a stock tip. Coverage: 19 SEC filers (AMD, MRVL, NVDA, AVGO, TSM, MU, AMAT, AAPL, MSFT, META, TSLA, ORCL, INTC, ASML, MSTR, JPM, BAC, GS, WFC), 7 central banks (BOE, FED, ECB, BOJ, RBA, BOC, SNB), 3 US macro ids (NFP, GDP, CPI) and 2 bundles (SEMIS $0.12, CENTRALBANKS $0.08). Unknown tickers and ids return 404 before any payment. Price: $0.01 USDC per filing or macro card, $0.02 per policy card, on Base (eip155:8453), x402 v2 exact scheme, no account needed. Paid: https://filingdelta.xyz/delta/{ticker}, https://filingdelta.xyz/policy/{id}, https://filingdelta.xyz/macro/{id}, https://filingdelta.xyz/bundle/{SEMIS|CENTRALBANKS} Free samples: https://filingdelta.xyz/sample/{ticker}, https://filingdelta.xyz/sample/policy/{id}, https://filingdelta.xyz/sample/macro/{id} Catalog: https://filingdelta.xyz/catalog Docs: https://filingdelta.xyz/llms.txt Discovery: https://filingdelta.xyz/.well-known/x402 MCP: POST https://filingdelta.xyz/mcp (paid tools get_filing_delta, get_policy, get_macro, get_bundle; free sample tools) Tags: sec, edgar, filings, 10-q, 10-k, central-bank, interest-rates, fomc, boe, ecb, cpi, finance

Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.

Pay-per-call CoinOpAI x402 services on Base: Kronos market intelligence (calibrated 80% price ranges for BTC, ETH, SOL, XRP, ADA, risk state, preflight, decision journals, audits) plus Kronos Futures (perp funding and crowding, leverage/liquidation risk, sized LONG/SHORT/FLAT decision packages), anomaly scoring, calibration and verify checks, the CoinOpAI prompt/automation catalog with search, and FLUX image generation with style presets. x402 + MPP, from $0.005 per call.

Pay-per-call crypto technical analysis (trend regime, Donchian levels, ATR stops, volatility, funding, order book, correlation, single-symbol and portfolio backtests computed by the code of a live trend-following bot) plus web utilities for agents (screenshot, page-to-Markdown, DNS, email verification, spot prices). USDC on Base or Solana, x402 v2, PayAI facilitator, browser checkout supported.

Pay-per-call proxy over DefiLlama public data: DeFi TVL, yield pool APY, token prices, DEX and fee volumes, stablecoin supply. 30 endpoints at $0.005 per call in USDC on Base. Operated by x402 Atlas, not affiliated with DefiLlama.

Thermodynamic risk intelligence for agentic capital. Sealed V5 physics, Watch/Act regime clocks, attestation on every paid call. Crisis registered six months before Lehman. Probe at $0.07 USDC on Base; clock at $5 before size.

Paid Solana data cards for autonomous agents: price signals, wallet market intelligence, and risk scoring over x402 v2 and USDC.