{"name":"aspern","transport":"JSON-RPC over HTTP POST to this URL","protocolVersion":"2025-06-18","tools":["preflight_payment","counterparty_check","find_agents","counterparty_history","counterparty_bulk"],"says":"POST a JSON-RPC request here: initialize, tools/list or tools/call. No key is needed for the free tools; the paid ones answer with their price until an x402 payment is presented."}