{"protocol":"x402","spec":"https://docs.x402.org","network":"eip155:8453","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402","facilitator_mode":"cdp","payTo":"0x46Ba634261566CF242c853d1f49511f9268ba674","scheme":"exact (EIP-3009 transferWithAuthorization)","asset_note":"Network resolves the canonical USDC contract; clients should consult the facilitator /supported endpoint for the address.","routes":[{"endpoint":"POST /v1/private/watch","price":"$0.10","description":"Create a Monero or Zcash view-key payment watch. Body: { chain, address, viewKey, webhookUrl, birthdayHeight? }. Returns { watchId, watchToken, webhookSecret, expiresAt, creditAtomic } — the receiver verifies inbound webhooks with HMAC-SHA256(webhookSecret, body) and tops up via /v1/private/topup* before the meter runs dry.","mime_type":"application/json"},{"endpoint":"POST /v1/private/topup","price":"$0.10","description":"Add $0.10 of credit (100_000 atomic USDC) to an existing watch. Body: { watchId, watchToken }. Returns the post-top-up credit block.","mime_type":"application/json"},{"endpoint":"POST /v1/private/topup-1","price":"$1.00","description":"Add $1.00 of credit (1_000_000 atomic USDC) to an existing watch. Same body/response shape as /v1/private/topup.","mime_type":"application/json"},{"endpoint":"POST /v1/private/topup-5","price":"$5.00","description":"Add $5.00 of credit (5_000_000 atomic USDC) to an existing watch. Best value tier for high-volume receivers. Same body/response shape as /v1/private/topup.","mime_type":"application/json"},{"endpoint":"POST /v1/private/historical","price":"$0.50","description":"One-off historical scan of a Zcash UFVK or Monero address+viewKey. Returns spendable + spent note totals and (optional) per-note breakdown. The view key streams to NFPT in-memory only — nothing is persisted to our DB. Body: { chain, address, viewKey, birthdayHeight?, toHeight?, includeNotes? }.","mime_type":"application/json"},{"endpoint":"GET /v1/q/xmr/height","price":"$0.001","description":"Single-fact: current Monero chain height + sync status. Sourced from a live Seneschal-operated monerod node.","mime_type":"application/json"},{"endpoint":"GET /v1/q/xmr/mempool","price":"$0.001","description":"Single-fact: number of pending transactions in the Monero mempool right now.","mime_type":"application/json"},{"endpoint":"GET /v1/q/xmr/fee","price":"$0.001","description":"Single-fact: recommended Monero per-byte fee in piconero (also exposed per-kB for convenience).","mime_type":"application/json"},{"endpoint":"GET /v1/q/xmr/last-block","price":"$0.001","description":"Single-fact: timestamp + age of the most recent Monero block, plus hash, difficulty, and size.","mime_type":"application/json"},{"endpoint":"GET /v1/q/zec/height","price":"$0.001","description":"Single-fact: current Zcash chain height + verification progress + best block hash. Sourced from a live Seneschal-operated zebra node.","mime_type":"application/json"},{"endpoint":"GET /v1/q/zec/mempool","price":"$0.001","description":"Single-fact: Zcash mempool count + bytes.","mime_type":"application/json"},{"endpoint":"GET /v1/q/zec/last-block","price":"$0.001","description":"Single-fact: timestamp + age of the most recent Zcash block, plus hash, difficulty, and size.","mime_type":"application/json"},{"endpoint":"GET /v1/premium/opportunities","price":"$0.05","description":"Top at-risk borrowers across Aave + Morpho + Spark with realised market success-rate, average actual profit-USD, and the builder most likely to land each market. Sorted by expected EV. Pure SQL, no live RPC.","mime_type":"application/json"},{"endpoint":"GET /v1/premium/builder-stats","price":"$0.10","description":"Per-builder bid distribution (p25/median/p75/p90/p99/max) and hourly slot activity histogram from the Seneschal shadow recorder. Answers \"what bid value do I need to land in builder X right now?\" for searchers tuning bundle pricing.","mime_type":"application/json"},{"endpoint":"GET /v1/q/liquidatable","price":"$0.001","description":"Single-fact: is borrower X currently liquidatable? Returns {found, liquidatable, hf, debt_usd, last_seen_ms} sourced from Aave + Morpho snapshots.","mime_type":"application/json"},{"endpoint":"GET /v1/q/at-risk-count","price":"$0.001","description":"Single-fact: how many borrowers have HF < max_hf and debt >= min_debt_usd right now? Returns {count, total_debt_usd}.","mime_type":"application/json"},{"endpoint":"GET /v1/q/recent-liquidations","price":"$0.001","description":"Single-fact: how many on-chain liquidations have we observed in the last `since_min` minutes, with what aggregate debt? Returns {count, total_debt_usd}.","mime_type":"application/json"},{"endpoint":"GET /v1/q/top-builder","price":"$0.001","description":"Single-fact: which builder has the largest slot share in the named window (24h|7d|30d)? Returns {builder, share_pct, slots_won}.","mime_type":"application/json"},{"endpoint":"GET /v1/q/builder-share","price":"$0.001","description":"Single-fact: what share of slots in the window did `builder` win? Substring match.","mime_type":"application/json"},{"endpoint":"GET /v1/q/builder-bid","price":"$0.001","description":"Single-fact: percentile bid value (in ETH) for `builder` over the window. Returns {value_eth, samples}.","mime_type":"application/json"},{"endpoint":"GET /v1/q/cheapest-flashloan","price":"$0.001","description":"Single-fact: cheapest flash-loan provider for `asset` on `chain` (default ethereum). Returns {provider, fee_bps, address}.","mime_type":"application/json"},{"endpoint":"GET /v1/q/data-freshness","price":"$0.001","description":"Single-fact: age in seconds of the freshest record in the named source (shadow_blocks|borrower_snapshot|morpho_borrower_snapshot|missed_liquidations|executions).","mime_type":"application/json"}],"service":{"name":"Seneschal Data API","description":"Monero & Zcash payment webhooks (HMAC-signed, view-key only, no node) plus on-chain DeFi liquidation and Ethereum builder telemetry — all payable per call over x402 on Base. Free read tier, no API key, no account.","homepage":"https://seneschal.space","docs":"https://docs.seneschal.space","api_root":"https://api.seneschal.space","mcp":"https://mcp.seneschal.space","control_panel":"https://panel.seneschal.space","stats":"https://stats.seneschal.space","contact":"https://t.me/OrknetP","products":[{"name":"Private Watch","summary":"Watch a Monero or Zcash view key for inbound payments and receive an HMAC-signed webhook on each one. Credit-metered (per-day + per-call), no node to run.","start":"POST /v1/private/watch","info":"https://api.seneschal.space/v1/private/info","panel":"https://panel.seneschal.space"},{"name":"DeFi + builder data","summary":"Real-time at-risk borrowers across Aave/Morpho/Spark/Compound, Ethereum builder market share, and Monero/Zcash chain facts. Free read tier; x402 premium feeds + Penny Oracle atomic facts.","start":"GET /v1/premium/opportunities","info":"https://api.seneschal.space/v1/paywall"}]}}