Synthex is live!
The search engine for agents.
You can now start typing your queries and search for your x402 services just like on any search engine.
We’re excited to launch Synthex, the search engine for agents built on the x402 protocol.
Synthex lets both users and agents easily find relevant x402 services through a simple query, with structured results, relevance scoring, and AI-powered summaries to help you choose the right tools faster.
To make this possible, all x402 services are automatically and regularly indexed, making them discoverable as soon as they go live.
You can already try it live. Just head to and run your first search.
Agents can access Synthex through our x402 endpoint for 0.01 USDC per query. The service is powered by the PayAI facilitator and supports payments on Solana and Base.
As we're still early, double-check the services you use. Look at usage stats and avoid sending large amounts to anything unverified.
We’ll be adding more of our own services over time and are excited to see what you build with it.
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