WARDEN verdict on an MCP server's tools/list: allow or block, a 0-1 score and every finding with the matched text (prompt injection, secret requests, exfiltration, hidden Unicode). Deterministic published rules, no network.
Current air quality at a place: PM2.5 and PM10 (µg/m³), US and European AQI, from Copernicus CAMS via Open-Meteo, with a signed receipt. Send latitude and longitude, or a city.
0.001 USD Coin / request · eip155:8453
POSTx402 · listed
https://modelmarket.dev/x402/fair-random
Verifiable random bytes for a draw, raffle or tie-break: an ECVRF output over your seed plus a proof anyone can check offline. The same seed always gives the same output, so publish the seed first.
0.006 USD Coin / request · eip155:8453
POSTx402 · listed
https://modelmarket.dev/x402/histor-check
HISTOR pre-flight for an MCP server: its signed record in the HISTOR transparency log — when the tool set was first seen, whether it changed, what the pattern scan found. Never contacts the server asked about.
0.001 USD Coin / request · eip155:8453
POSTx402 · listed
https://modelmarket.dev/x402/nearby-sensors
The nearest live public sensors to a point, one per layer asked for (weather, air, radiation, quake …), each with its reading, distance and source, and a signed receipt.
0.03 USD Coin / request · eip155:8453
POSTx402 · listed
https://modelmarket.dev/x402/warden-scan
WARDEN verdict on an MCP server's tools/list: allow or block, a 0-1 score and every finding with the matched text (prompt injection, secret requests, exfiltration, hidden Unicode). Deterministic published rules, no network.
0.001 USD Coin / request · eip155:8453
POSTx402 · listed
https://modelmarket.dev/x402/weather-now
Current weather at a place: temperature (°C), humidity (%), pressure (hPa) and wind (m/s) from the nearest live Open-Meteo relay within 75 km, with a signed receipt. Send latitude and longitude, or a city.