api.hergertsynthora.com
Base · payout 0xef879bfd6c4accb8f795136de90246e1ec245e06
Answers HTTP 402
2 of 2 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-01
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
14 x402-style payments from 5 distinct payers, $0.20 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 14
- Outside payers
- 5
- USDC
- 0.2
All USDC received at this payout address: $0.20 (includes payments that are not x402)
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xef879bfd6c4accb8f795136de90246e1ec245e06 | 30 | 2 of 2 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-01 | 14 x402-style payments from 5 distinct payers, $0.20 USDC in the last 7 days (Base, exact read) |
- Hosts
- api.hergertsynthora.com, payto-preflight.hergertsynthora.com
- Listings
- 30 registered in the x402 catalogue
- Price range
- $0.010 to $0.100 per call, as registered
- Categories (auto)
- Market data (12), Onchain data (6), Other (5), Security (2), Agents (1), Commerce (1), Developer tools (1), Search (1), Web data (1)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xef879b…245e06 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Registrations · 30
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://api.hergertsynthora.com/v1/air-quality 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)… | Base | Other | $0.01 | 2026-09-29 |
https://api.hergertsynthora.com/v1/bitcoin-fees SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only. | Base | Onchain data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/defi-llama-tvl-ranking SYNTHORA defi-llama-tvl-ranking: Top DeFi protocols by TVL with rank, chain, category and 1d/7d change, capped list (default 50, max 200 via {"limit":N}). Source: api.llama.fi/protocols (DefiLlama), keyless, timestamped. | Base | Onchain data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/defi-yields 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… | Base | Onchain data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/ecb-forex-fixing-vs-market SYNTHORA ecb-forex-fixing-vs-market: ECB daily EUR/USD fixing vs live market rate: deviation in basis points, direction and >25bps alert. Sources: official ECB eurofxref-daily.xml + open.er-api.com, both keyless. | Base | Market data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/stablecoin-supply SYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert flag above 50 bps. Optional symbol filter. Free source: stable… | Base | Onchain data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/top-crypto SYNTHORA top-crypto: Top N cryptocurrencies by market cap (default 10, max 50): rank, price, 24h change, volume and market cap in USD. Source: CoinGecko free API, keyless, timestamped. | Base | Market data | $0.01 | 2026-09-28 |
https://api.hergertsynthora.com/v1/who-gho-timeseries SYNTHORA who-gho-timeseries: WHO Global Health Observatory indicator time series by country (life expectancy etc.) — public-health data for research and policy agents. $0.01 USDC x402 Base. Ratings: GET /v1/ratings/who-… | Base | Other | $0.01 | 2026-10-04 |
https://payto-preflight.hergertsynthora.com/service x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on B… | Base | Commerce | $0.01 | 2026-10-02 |
https://api.hergertsynthora.com/v1/ecb-macro 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. O… | Base | Market data | $0.03 | 2026-09-24 |
https://api.hergertsynthora.com/v1/exchange-rates-verified 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 … | Base | Market data | $0.03 | 2026-09-24 |
https://api.hergertsynthora.com/v1/fed-watch 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 independe… | Base | Market data | $0.03 | 2026-09-11 |
https://api.hergertsynthora.com/v1/gas-oracle-multi 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 wha… | Base | Onchain data | $0.03 | 2026-09-23 |
https://api.hergertsynthora.com/v1/gdelt-tension 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 geopolitica… | Base | Market data | $0.03 | 2026-09-23 |
https://api.hergertsynthora.com/v1/github-repo-activity 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. Sou… | Base | Developer tools | $0.03 | 2026-09-27 |
https://api.hergertsynthora.com/v1/historical-weather 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. … | Base | Other | $0.03 | 2026-10-04 |
https://api.hergertsynthora.com/v1/polymarket-trades Historical Polymarket trade query with filters plus per-wallet aggregation. $0.01 USDC x402 Base. | Base | Market data | $0.03 | 2026-09-21 |
https://api.hergertsynthora.com/v1/port-watch 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… | Base | Market data | $0.03 | 2026-09-18 |
https://api.hergertsynthora.com/v1/space-weather-risk 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, preci… | Base | Security | $0.03 | 2026-09-21 |
https://api.hergertsynthora.com/v1/trending-cross 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 gai… | Base | Web data | $0.03 | 2026-09-19 |
https://api.hergertsynthora.com/v1/usgs-earthquakes 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 … | Base | Other | $0.03 | 2026-09-19 |
https://api.hergertsynthora.com/v1/volume-anomaly 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 CoinGeck… | Base | Market data | $0.03 | 2026-09-25 |
https://api.hergertsynthora.com/v1/weather-now SYNTHORA weather-now: current weather for any city or lat,lon — temperature, feels-like, humidity, wind, WMO condition code in plain text, plus the 6h temperature trend (rising/falling/flat), which is the actionable par… | Base | Other | $0.03 | 2026-09-19 |
https://api.hergertsynthora.com/v1/commodity-macro Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failur… | Base | Market data | $0.05 | 2026-09-30 |
https://api.hergertsynthora.com/v1/polymarket-markets Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitco… | Base | Market data | $0.05 | 2026-09-10 |
https://api.hergertsynthora.com/v1/regwatch SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}. | Base | Agents | $0.05 | 2026-09-28 |
https://api.hergertsynthora.com/v1/resolution-verdict Decision verdict for prediction markets: probability, direction and multi-source evidence with declared sources. $0.05 USDC x402 Base. | Base | Market data | $0.05 | 2026-09-19 |
https://api.hergertsynthora.com/v1/vendor-dossier SYNTHORA vendor-dossier: third-party cyber risk (TPCRM) dossier on any vendor, compiled live from passive OSINT (C0): Certificate Transparency footprint (crt.sh/certspotter), DNS via DoH (NS/MX/SPF/DMARC), RDAP when the… | Base | Security | $0.05 | 2026-09-23 |
https://api.hergertsynthora.com/v1/websearch Keyless web search for AI agents, pay-per-call, no API key and no signup: natural-language query in, ranked organic results out (title, url, snippet) with source list. Neutral web access for research, RAG grounding and … | Base | Search | $0.05 | 2026-09-28 |
https://api.hergertsynthora.com/v1/txintent Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, valu… | Base | Onchain data | $0.1 | 2026-09-08 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.