service / x402-purchase-metadata-7c2ffce1

Purchase Metadata API

Unlocks all structured metadata for a single piece of content: full questions answered, complete training caption, cinematographic analysis, provenance score, entity extraction, and chapter markers. Idempotent within 24 hours. Call this before purchase_content. Payment is distributed to the content's rights holders on-chain; JubJub retains a 3% platform fee. Browse the full catalogue and search it for free at JubJub's MCP: https://api.jubjubapp.com/v2/mcp

uncertifiedrail · x402

Call card

https://api.jubjubapp.com/v2/paid/purchase_metadata price $0.012 per call

Your agent can call this

The slug below is exactly what invoke accepts. Addendpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-purchase-metadata-7c2ffce1", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-purchase-metadata-7c2ffce1", "endpoint": "<route_cards[].path>", "body": {}}'

Reliability

uptime 30d-

refund rate 7d-

settled calls0

failed calls0

certified since-

Daily probe success ratio, last 30 days. Last probed 2026-08-26.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.