Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.... A payment without a live key is not charged. Read key, no browser: POST https://api.loyalspark.online/x402-gateway/register-agent. HTTP 402 is $0.01 USDC on Base. Pay it and do not send an API key. You receive lsk_ once, scope read only: list your programs, rewards, balances, and analytics. That key cannot mint, deploy a program, create rewards, or trade. A new wallet gets a 45-day Pro trial (5 agents, 10,000 calls/month), then Free (1 agent, 200 calls/month, 1,000 tokens minted/month, 1.25% mint fee) unless that wallet pays. The $0.01 is the call price, not a subscription. No free seat returns 403 before any charge. Write scopes (mint, create_program, manage_rewards, trade) use the same plan: dashboard https://loyalspark.online/merchant → AI Agents, or free SIWE — POST https://api.loyalspark.online/siwe-nonce, sign Chain ID 8453 with the exact phrase 'Register Loyal Spark merchant agent', then POST {message, signature, name, scopes} to https://api.loyalspark.online/agent-register-siwe. Look first with no key: GET https://api.loyalspark.online/x402-gateway/public-programs ($0.001, active programs, not your own list). Guide: https://loyalspark.online/.well-known/skills/00-getting-started.md The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

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Live + reference foreign-exchange (forex) rates, base USD. LIVE near-real-time mid quotes for the 12 most-traded currencies (EUR, GBP, JPY, CHF, CAD, AUD, NZD, CNY, HKD, SGD, SEK, KRW), refreshed every minute with an honest market-open/stale flag, PLUS the official ECB daily reference table for ~30 currencies. Derive any cross-rate or pair. For agents pricing cross-border ops, treasury, invoicing and FX conversion. Keyless, pay-per-call.

Latest observed weather signal for one city — a single-signal SPOT snapshot (like a market-data quote). Flat $0.01, payable by a STOCK x402 client (no binding nonce). Never returns history or more than one signal. Uncharged on unknown-city / no-data-yet.

Current weather and a 3-day forecast for any city or lat/lon - temperature, humidity, wind, conditions. No account, no API key. Try GET /weather/sample.

Is USDC/USDT/DAI holding its $1 peg, and is stablecoin supply growing or shrinking (risk-on vs risk-off)? Live peg deviation (bps), circulating supply + 1d/7d/30d flow, market dominance and chain spread for the top 30 USD stablecoins, plus downside depeg alerts for any coin trading >0.5% below peg. Sourced from DefiLlama (public). Served from a cached snapshot while fresh (≤1h) and regenerated on demand when a read finds it stale.

ENS and reverse name resolution across EVM chains: name and address pairs with resolution proofs. POST /v1/name with a {name} to resolve forward (or an address to reverse-resolve) and get the pair and source as one JSON object. Deterministic per block. Pay per request in USDC; no account, no API key.

Analyst consensus for a vendor-resolved equity: the latest buy/hold/sell distribution (strong buy · buy · hold · sell · strong sell counts, total, and a deterministic consensus label) plus up to six months of the same distribution so an agent can read the DRIFT — is the street moving toward or away from the name. Vendor counts (Finnhub), our label rule stated in the payload. No price targets and no per-analyst grade actions are served.

SOFR, Fed funds, and other benchmark interest-rate series as stable JSON. POST /v1/rate with an optional series selector and get the observations back as one JSON object. Deterministic per data vintage. Pay per request in USDC; no account, no API key.

US macroeconomic time series as stable JSON: CPI, unemployment, payrolls, GDP, and rates, with alias sets. POST /v1/us with a {series} and get the observations as one JSON object. Deterministic per source vintage. Pay per request in USDC; no account, no API key.

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Check GitHub's official status source for current incidents, component health, and scheduled maintenance before an agent retries, deploys, or escalates.

Score one name or a whole watchlist in one read. GET /api/board/name?sym=NVDA (or ?sym=NVDA,AMD,MSFT — up to 10 names, one price) returns each name's full Coil read: opportunity 0-100 + percentile, entry quality 0-100, trend state (cold / building / firing), hold strength, growth score, gap-risk, leadership flag, dollar volume, coil read and its book's regime. No READY / SETUP entry window here (see the buy list). Any S&P 500, Nasdaq-100 or macro name. ~5-min refresh. Research, not advice.

Read the current block height directly from a supported Base, Ethereum, or Arbitrum public JSON-RPC provider.

Send dollars to a bank account by ACH. Requires a bank destination registered beforehand with addBankingDestination (list them at GET /bank-recipients), which in turn requires an approved banking profile. The on-chain x402 payment credits the user's account balance via the standard deposit webhook, so a payout that cannot be fulfilled leaves nothing stranded — retry, or recover the funds with POST /withdraw.

Discovery endpoint listing all 17 available structured-data extractors and the domains each one supports, so an agent can decide whether /extract can handle a given URL before paying for it.

30-year fixed mortgage rate minus 10-year Treasury yield. Measures the premium mortgage lenders charge above the risk-free benchmark. Normal range 150-200bps; elevated spread signals lender risk aversion or MBS prepayment concerns. Pre-computed weekly from MORTGAGE30US and DGS10.

10-year Treasury yield minus 10-year breakeven inflation rate. Represents the real return demanded for long-dated government bonds. Negative real yields historically correlate with risk-asset outperformance. Critical input for equity valuation models and cross-asset allocation. Pre-computed daily.

Spread between 10-year and 2-year Treasury yields. The most widely watched yield curve indicator — inversion has preceded every U.S. recession since 1955 with a 6-18 month lead. Positive = normal curve, negative = inverted (recession warning). Pre-computed daily from DGS10 and DGS2.

High-yield OAS minus investment-grade OAS — isolates the incremental risk premium for lower-quality credit. Widens when credit stress is concentrated in weaker issuers. Use for credit differentiation analysis and stress regime detection. Pre-computed daily from BofA index data.