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MARKET MONITOR / CATALOGUE Services 131,017 MCP listed 40,656 x402 90,428 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-29 · 3 sources
Provider

riddlex402.vercel.app

riddlex402.vercel.app · 1 listed service · provider site

Riddle Oracle x402 REST usage

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

riddlex402.vercel.app Crypto & Payments 8 calls / 30d checked 2026-10-29
0.002 USDC per call per call

Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.