Every agent-payable API.

SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {"messages":[{"role":"user","content":"..."}]} (or {"prompt":"..."}).

SYNTHORA github-repo-activity: Activity metrics for any public GitHub repo (input owner/repo): stars, forks, open issues, last push, language, archived flag. 10-min in-process cache, stale-on-rate-limit or ok:false. Source: api.github.com, keyless.

SYNTHORA A2A service

SYNTHORA air-quality: live air quality for any city or lat,lon — PM2.5/PM10/ozone/NO2, EU and US AQI, and a WHO-threshold operational verdict (good/moderate/harmful). Source: open-meteo Air Quality (CAMS/ESA Copernicus), free, no key. $0.005 USDC x402 Base.

SYNTHORA asset-risk: geoint risk verdict by zone (gibraltar, bab-el-mandeb, bosphorus, algeciras...) or lat/lon+bbox — confidence measured by AGREEMENT between independent sources, discrepancies declared (the moat). $0.03 USDC x402 Base.

SYNTHORA chokepoint-risk: SUPERCORRELATED risk verdict per maritime chokepoint (Hormuz, Suez, Panama, Bab el-Mandeb, Malacca, Gibraltar, Taiwan) — crosses REAL TRAFFIC (IMF PortWatch, canonical Polymarket resolution source) x NARRATIVE (GDELT global news spike+tone) x NAVIGABILITY (WaveWatch III sea state) into one score with confidence level. The alpha: narrative/traffic divergence (noise without disruption = market overreaction; silent disruption = early signal). Sources declared; degraded sources lower confidence. $0.05 USDC x402 Base.

SYNTHORA chokepoint-transits: daily vessel transits through the 28 global maritime chokepoints (Hormuz, Suez, Panama, Bab el-Mandeb, Malacca...). Latest settled day, 7d moving average, deviation vs 30d baseline, per-vessel-type breakdown (a tanker-only drop at Hormuz is the tradeable signal) and anomaly flag. Source: IMF PortWatch (satellite AIS) — the canonical resolution source of Polymarket chokepoint markets. Free, no key.

SYNTHORA counterparty-clearance (screen): due diligence of a counterparty before paying or contracting. Multi-list matching (OFAC SDN + aliases, UN, OpenSanctions, EU consolidated) + on-chain reputation, fused by the SYNTHORA engine into a signed CLEAR/FLAGGED/BLOCKED ruling with citations to the exact list entry. 0.10 USDC via x402 on Base. POST {"name":"..."} and/or {"wallet":"0x.."}. Full re-verifiable attestation: counterparty-attestation (0.50).

SYNTHORA daily-intel-brief: the daily intelligence briefing in ONE call — funding spreads cross-venue, stablecoin depeg radar, US funding stress (SOFR-EFFR), chokepoint status (PortWatch), narrative tension (GDELT), plus executive alerts. Each block declares its verified sources. What a trading agent reads every morning. $0.10 USDC x402 Base.

SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.005 USDC x402 Base.

SYNTHORA domain-risk: domain risk verdict (LIMPIO/SOSPECHOSO/PELIGROSO) with score, confidence and evidence signals — age, infra, reputation crosses. Pre-interaction safety for agents. $0.03 USDC x402 Base.

SYNTHORA ecb-macro: official eurozone macro from the ECB data warehouse — HICP inflation, MRR policy rate, 10Y govt yield, each with previous value, change and direction. For macro/rates agents and prediction markets. Official free source, no key. $0.005 USDC x402 Base.

SYNTHORA emerging-protocols: early detection of young DeFi protocols with accelerating TVL (on-chain momentum) before they get big — for MEV searchers and alpha bots. Ranked by momentum+acceleration+youth, mega-protocol noise filtered. Source: DeFiLlama. $0.03 USDC x402 Base.

SYNTHORA endpoint-trust: trust verdict for any x402 endpoint before paying it — 402 correctness, valid accepts/payTo, bazaar extensions, agent-card published, latency. Observed behavior, not declarations. The pre-payment check for buying agents. $0.005 USDC x402 Base.

SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-currency deviation in bps and divergence alert >50 bps. The product is the discrepancy: a bad rate breaks a financial agent. Free sources, no key. $0.005 USDC x402 Base.

SYNTHORA fed-watch: US reference-rate funding pulse — SOFR/EFFR/TGCR/BGCR/OBFR with volumes, percentile dispersion and the SOFR-EFFR spread (the funding-stress signal before it hits the news). Cross-check of 5 independent official NY Fed series. The input for Fed/CPI prediction markets. Free official source, no key. $0.01 USDC x402 Base.

SYNTHORA funding-spread: perp funding rates CROSSED across Binance, Bybit and OKX for top pairs — the max spread between venues and the theoretical carry direction (long where you receive, short where you pay). Funding arb signal, not a wrapper. 3 free public sources crossed. $0.03 USDC x402 Base.

SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence report — a single RPC can lie or lag; dual-verified is what you time transactions with. Free public RPCs, no key. $0.005 USDC x402 Base.

SYNTHORA gdelt-tension: geopolitical tension index for any topic/country — news-mention spike vs 7d baseline, average tone shift, escalation flag and the headlines causing it. The early signal for Polymarket geopolitical markets (high variance, high spread). Source: GDELT DOC 2.0 (100+ languages, free, no key), 6h-prefetched cache for reliability.

SYNTHORA headers-audit: HTTP security headers + TLS audit for any URL — missing headers, score 0-100, cookie flags. $0.005 USDC x402 Base.

SYNTHORA historical-weather: verified historical weather for any place and date (1940 → ~5 days ago) from the ERA5 reanalysis — tmax/tmin, precipitation, max wind. For climate-market backtesting and claim verification. Source: open-meteo archive, free, no key. $0.005 USDC x402 Base.

SYNTHORA hurricane-odds: active tropical cyclones CROSS-VERIFIED — official NHC bulletin (category, wind, pressure, movement) crossed with an independent model (ECMWF via open-meteo) at the storm position; discrepancies >15 kt flagged. The input for Polymarket weather/climate markets. Sources: NHC + ECMWF, free, no key. $0.006 USDC x402 Base.

SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.

SYNTHORA macro intel bundle: 7 live macro/market datasets in ONE call (commodity macro, market sentiment, stablecoin supply, ECB forex fixing vs market, DeFi TVL ranking, top crypto, bitcoin fees). Cheaper than buying each separately. Partial degradation (never fails whole), Ed25519-signed. First 3 calls FREE per wallet via X-WALLET header. 0.10 USDC via x402 on Base. SYNTHORA.

SYNTHORA macro surprise index: z-score of the latest change vs the trailing 12-change distribution for official ECB series (HICP inflation, MRR policy rate, 10Y yield). Flags strong/moderate surprises the moment official data prints. Partial degradation, Ed25519-signed. First 3 calls FREE per wallet via X-WALLET header. 0.05 USDC via x402 on Base.

SYNTHORA marine-wave-forecast: sea state for any coast/port or chokepoint (Hormuz, Suez, Panama, Malacca, Gibraltar, Bab el-Mandeb, Dover presets) — wave height, period, swell, Douglas-scale verdict and navigability flag. Complements chokepoint-transits for shipping disruption markets. Source: open-meteo Marine (ECMWF/NOAA WaveWatch III, no key). $0.005 USDC x402 Base.

SYNTHORA noaa-tides: tide and water level for US ports/stations, VERIFIED by crossing NOAA harmonic prediction with the LIVE observation at the same station — the anomaly (observed minus predicted) is the storm-surge/port-disruption signal. Source: NOAA CO-OPS official, free, no key. $0.005 USDC x402 Base.

SYNTHORA port-watch: daily port activity for any of 2,065 ports (Shanghai, Singapore, Rotterdam, LA, Long Beach presets + any name) — port calls, estimated import/export capacity (dwt), 7d moving average vs 30d baseline deviation and anomaly flag. Port volume leads official macro data by weeks: the input for trade/tariff/recession markets. Source: IMF PortWatch (satellite AIS, free, no key). $0.01 USDC x402 Base.

SYNTHORA resolution-source-feed: give a Polymarket market slug, get its official resolution source READ LIVE — current value, threshold, distance and on-track/off-track verdict. Covers IMF PortWatch chokepoint markets (Hormuz weekly series, normalization binaries): the answer a trader checks before every weekly resolution. Composes gamma-api rules parsing + live official source. $0.05 USDC x402 Base.

SYNTHORA rwa-gap-watch: the gap between tokenized stocks (Ondo AAPLon, TSLAon, NVDAon, SPYon, HOODon...) trading 24/7 on-chain and their last official NYSE close — on-chain price discovery happens BEFORE TradFi opens (weekend/overnight edge for investors). Cross-verified: best-liquidity pool (DexScreener, multi-chain) x official close (Yahoo), zombie/fake pools detected and reported, per-asset confidence by liquidity. $0.03 USDC x402 Base.

SYNTHORA shipping-alpha: physical-vs-price divergence for shipping/logistics stocks (ZIM, Maersk AMKBY, Hapag-Lloyd, FedEx, UPS, Matson) — crosses LIVE physical reality (IMF PortWatch chokepoint transits + WaveWatch III navigability) with the official stock price move. Physical deterioration not yet priced = the investor window. 3 independent free sources crossed, confidence declared. $0.05 USDC x402 Base.

SYNTHORA space-weather-risk: composite operational space-weather risk verdict fusing 4 NOAA SWPC feeds (Kp/G scale, GOES X-ray flare class, solar wind, proton flux) — for defense, aviation, satellites, power grid, precision GPS. $0.01 USDC x402 Base.

SYNTHORA stablecoin-depeg: depeg radar for 8 major stablecoins (USDT, USDC, DAI, USDS, USDe, PYUSD, USDD, FDUSD), each measured by TWO independent sources (CoinGecko + DefiLlama) with inter-source discrepancy reported — a real depeg shows in both; a single-source blip is an oracle artifact. Severity levels in bps. Free sources, no key. $0.006 USDC x402 Base.

SYNTHORA threat-exposure: external attack-surface score for any domain/host — exposure breakdown with deterministic evidence (historic IPs, open surfaces). $0.03 USDC x402 Base.

SYNTHORA tor-fetch: fetch any URL (including .onion) via Tor AND directly, compared side by side — status, size, and divergence flag (geo-block / soft censorship detection). Access onion intel sources with no clearnet route. $0.005 USDC x402 Base.

SYNTHORA trending-cross: crypto trending VERIFIED by two-source consensus — an asset trending on CoinGecko AND gaining on Binance at once is a confirmed signal; trending on one only is noise or a localized pump. Top gainers/losers with volume included. Free sources, no key. $0.005 USDC x402 Base.

SYNTHORA tvl-concentration: DeFi TVL drain/concentration signal — protocols anomalously losing TVL while token price has not yet repriced (temporal edge window). For liquidation and risk bots. Source: DeFiLlama. $0.03 USDC x402 Base.

SYNTHORA tx-simulator: simulate an EVM transaction before signing — SAFE/WARN/DANGER verdict, decoded intent, warnings and checks performed. Pre-trade safety for agent wallets. $0.03 USDC x402 Base.

SYNTHORA usgs-earthquakes: latest earthquakes (M>=4.5 default, tunable) with PAGER alert level, tsunami flag and ACTIVE SEISMIC CLUSTER detection (>=3 events same zone in 24h) — the actionable signal for insurance-risk and disaster prediction markets. Source: USGS FDSN (official US, real-time, no key). $0.005 USDC x402 Base.

SYNTHORA vessel-sanctions: screen any vessel (IMO or name) against the OFAC SDN sanctioned-vessels list (1,524 ships tracked) — the compliance check before touching tanker/shipping trades or chokepoint bets. List mode: full sanctioned-fleet snapshot. Source: OFAC SDN (US Treasury, free, no key). $0.03 USDC via x402 on Base.

SYNTHORA volume-anomaly: crypto volume-anomaly alerts for arbitrage bots — assets whose 24h turnover (volume/mcap) is anomalously high vs their cohort (z-score), early pump/unusual-activity signal. Composite of CoinGecko markets + DeFiLlama DEX volume. Keyless. $0.03 USDC x402 Base.

SYNTHORA web-extract: any URL to clean agent-ready text (no HTML noise) + title, meta description, link/image counts — context-ready content for agents, stdlib extraction, no third parties. $0.005 USDC x402 Base.

SYNTHORA who-gho-timeseries: WHO Global Health Observatory indicator time series by country (life expectancy etc.) — public-health data for research and policy agents. $0.005 USDC x402 Base.

Safe length of a list/JSON array. Call when you measure agent arrays before batching. Returns length integer for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Fetch a public web page and return clean Markdown with stable citation anchors, a content hash, and a retrieval timestamp — plus evidence of hidden text, invisible Unicode, and prompt-injection attempts found in the page. Strict SSRF protection on every redirect hop. Returns a per-span verdict with the decoded payload, not a confidence score. Zero retention.

Buy a safety-checked Base DEX swap quote for USDC, WETH, EURC, cbETH, cbBTC, VIRTUAL, or AERO. Returns unsigned calldata or a buyer-signable gasless payload; SafeRoute never holds funds, signs, or broadcasts.

Check whether an approved Base token swap is eligible before supplying a wallet. Returns verified token contracts, indicative output, liquidity sources, fee estimate, warnings, and the exact next action. No custody, signing, or execution.

Fetch a URL safely and get back sanitized, agent-ready page text plus a prompt-injection verdict (SAFE / REVIEW / BLOCK). Detects instructions hidden in markup, invisible Unicode, homoglyph and encoded payloads, delimiter spoofing and data-exfiltration bait — so an agent never ingests hostile content. Use before feeding any fetched page into an LLM.

Safety verdict for an ERC-20 on Base: ownership and mint authority, proxy upgradeability, liquidity and holder concentration, transfer-restriction patterns. Returns hold/caution/avoid with a score and the signals behind it. Heuristic static analysis, not a security audit — a proxy contract can change its implementation after this check.

Base address -> deterministic Morpho borrower position snapshot and collateral-price stress scenarios. Returns LTV, LLTV, health factor, liquidation headroom, source freshness, and scenario outcomes. Read-only indexed observation; direct RPC verification is required before execution.