{"name":"The Maraventano Index","tagline":"x402 Market Intelligence","author":"Lisa Maraventano","operated_since":"2026-04","what":"Signed, continuously-measured merchant-side intelligence on the x402 agent economy. Observed from a live x402 merchant seat.","why":"Agents transacting with each other need machine-readable, cite-able, signed intelligence about who they are transacting with. Humans claiming large numbers about agent commerce need an independent measurement to cite against. The Index provides both.","quick_links":{"well_known_x402":"https://maraventanoindex.com/.well-known/x402","agent_card":"https://maraventanoindex.com/.well-known/agent.json","openapi":"https://maraventanoindex.com/openapi.json","llms_txt":"https://maraventanoindex.com/llms.txt","methodology":"https://maraventanoindex.com/methodology"},"free_tier_entry_points":[{"path":"/api/x402-operator-census/headline","description":"Signed headline numbers from the operator census"},{"path":"/api/mirror/preview","description":"Your own caller reflection + live conformance check on this request"},{"path":"/api/x402-failure-corpus/headline","description":"Signed failure-mode counts and distribution"},{"path":"/api/x402-conformance/self","description":"Signed grade letter for your own x402 client"},{"path":"/api/bartender-benchmark/ledger","description":"The economic experiment ledger (CC0, aggregates only)"}],"paid_endpoints":[{"path":"/api/x402-operator-census","price_usd":0.5},{"path":"/api/x402-operator-census/lookup","price_usd":0.01},{"path":"/api/mirror","price_usd":0.25},{"path":"/api/x402-failure-corpus","price_usd":0.5},{"path":"/api/x402-conformance/self/card","price_usd":0.33},{"path":"/api/data-daily","price_usd":1},{"path":"/api/bartender-benchmark","price_usd":1}],"related_brands":{"underground_cultural_district":"https://underground.substratesymposium.com","agent_first_dollar":"https://agentfirstdollar.com"},"contact":"lisamaraventano@gmail.com","delivered_at":"2026-10-03T16:29:59.047Z"}