Show a Solana wallet's address and live SOL + USDC balance. With no address, derives the wallet from the configured signer (SOLANA_SECRET_KEY) — call this before pay_and_call to confirm there's USDC to spend. Read-only; never moves funds.

Search the live x402 facilitator network (PayAI + Coinbase CDP bazaar) for paid services — HTTP APIs and MCP tools. Returns each match with its price, networks, and resource URL. Pass a resource into pay_and_call to use it. Read-only.

Fetch an x402 endpoint and return its 402 payment requirements — every accepted scheme, network, asset, price and pay-to address — WITHOUT paying. If the endpoint is free, returns its result instead. No signer required. Use this to learn the cost before pay_and_call.

Call a paid x402 endpoint and settle the payment automatically, then return the result.

Two modes: • Self-custodial (default): signs with SOLANA_SECRET_KEY or secret arg — you hold the key. • Session-governed: pass session_token (a three.ws Payment Session token) — the platform wallet signs on your behalf; the session's budget, allowlist, and per-tx cap are enforced by the platform. No private key required. Supports Solana USDC and Base USDC sessions.

Pay in USDC (default) or, when the endpoint advertises it, in $THREE (set token:"three"). Bounded by max_usd and the MAX_PAY_USD cap; refuses before any money moves if the price is over the cap. With REQUIRE_CONFIRM on, the call refuses until re-issued with confirm:true.