@paulieb
Two ways to give an AI agent live on-chain data from The Graph (x402, no API key)
The Graph's gateway now speaks x402: an unpaid query returns a 402, the agent signs a ~$0.01 USDC payment, and the data comes back. No account, no key — the payment is the auth. I built two ways to use that, aimed at two kinds of builders:
PayQL (you integrate) — a drop-in MCP server. Your agent discovers the right subgraph, checks the price, and queries it, paying per call. Keyless, gasless, bring-your-own-wallet. → payql-playground-production.up.railway.app
Graph Advocate (zero integration) — an A2A agent. Send it a plain-English question and pay per answer; it picks the subgraph, writes + runs the query, and hands back the data. → graphadvocate.com
Both are mine and usable now. Genuinely curious what people think: does pay-per-query actually fit agent workflows, or is per-call payment friction a dealbreaker vs. a flat API key? Feedback welcome.
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