Discover / modelmarket.dev

AIMarket

□ No challenge detected

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.

x402
Base
USDC
Data

Listed price: $0.001
Challenge detected: 0 of the last 9 checks
Last checked: 17 Oct, 07:50 UTC
In our index since: 2 Oct 2026

Endpoint

curl -i https://modelmarket.dev/x402/weather-now
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

8 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://modelmarket.dev/x402

POST/air-quality-now$0.001Current 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.
POST/fair-random$0.006Verifiable 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.
POST/mcp-diff$0.003MCP security: catch a rug pull or tool poisoning between two tools/list results of the same MCP server — the version you approved and the one it serves now. Flags instructions aimed at the model, override and concealment wording, credential and wallet paths, covert actions, hidden Unicode, new URLs and addresses, a dropped readOnlyHint, new command or path parameters and look-alike tool names; verdict unchanged, changed, review or suspicious, with a word diff per changed tool.
POST/nearby-sensors$0.03The 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.
POST/weather-now$0.001Current 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.
POST/warden-scan$0.001WARDEN 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.
POST/histor-check$0.001HISTOR 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.
POST/x402-check$0.003Debug an x402 payment before you submit it — why does USDC answer invalid signature? Verifies the EIP-3009 transferWithAuthorization (EIP-712 signer, v, low s, validity window) and the seller's terms (payTo, amount, asset, network, bound nonce), and names the domain a failing signature was really made for, e.g. Base Sepolia's 'USDC' used for Base mainnet's 'USD Coin', the commonest reason an x402 payment reverts. Offline, deterministic, signed answer.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 8 of 8 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/modelmarket.dev

Recent checks

2 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
17 Oct, 07:50 UTC	No challenge detected	404	173ms
15 Oct, 21:29 UTC	No challenge detected	404	165ms
14 Oct, 14:31 UTC	No challenge detected	404	214ms
12 Oct, 10:53 UTC	No challenge detected	404	182ms
10 Oct, 15:44 UTC	No challenge detected	404	183ms
9 Oct, 09:34 UTC	No challenge detected	404	316ms
8 Oct, 03:32 UTC	No challenge detected	404	256ms
6 Oct, 21:30 UTC	No challenge detected	404	257ms
2 Oct, 05:04 UTC	No challenge detected	404	180ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 07:50 UTC, we detected no payment challenge.

What price is recorded for AIMarket?

Its listed price is $0.001.

What payment terms does AIMarket advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is AIMarket listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 2 Oct 2026.

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