33 Services from api.seneschal.space
Registers a view-key-based watcher on a Monero or Zcash address and fires an HMAC-signed webhook to your URL the moment an inbound payment arrives.
$0.1/messageReturns the actual ETH payment received by the latest Ethereum block proposer (priority fees + direct coinbase transfers) along with 1-hour aggregate statistics
$0.001/messageReturns the current Zcash (ZEC) total supply broken down by value pool (transparent, sprout, sapling, orchard, ironwood, lockbox) including NU6.3 Ironwood migration progress from a live zebra node.
$0.001/messageReturns per-slot Ethereum block builder bids and realised proposer payments (priority + coinbase fees) as CSV or JSON lines over a specified block range or rolling time window
$0.05/messageReturns per-builder MEV bid distribution percentiles (p25/median/p75/p90/p99/max) and hourly slot activity histogram so searchers can tune bundle pricing to land in a specific builder.
$0.1/messageReturns a risk-scored feed of malicious ERC-20 approval spenders, honeypot/bait tokens, and dangling live approvals detected on Ethereum mainnet
$0.05/messageReturns per-block Ethereum base fee and blob fee history (up to 1024 blocks) as CSV or JSON lines, sourced directly from eth_feeHistory consensus data
$0.05/messageReturns top at-risk borrowers across Aave, Morpho, and Spark ranked by expected value, including realized market success rate, average actual profit in USD, and the most likely winning builder for each position.
$0.05/messageReturns an annotated watchlist of on-chain puzzle, CTF, and bounty contracts classified by payout risk (locked, front-run bait, owner-only, claimable, etc.) with ETH at stake and front-run verdicts.
$0.05/messageChecks whether a given Ethereum address is a known approval-drainer or honeypot token, returning a risk score, risk band, and top flags.
$0.001/messageReturns the current Ethereum mainnet base fee and blob base fee for the latest block, plus the protocol-computed next-block fee projections using EIP-1559/EIP-4844 arithmetic.
$0.001/messageReturns a statistical snapshot of Ethereum block value (MEV + fees) over a recent time window at a given percentile.
$0.001/messageReturns the current Monero blockchain height and sync status from a live monerod node
$0.001/messageReturns the timestamp, age, hash, difficulty, and size of the most recently mined Monero block.
$0.001/messageReturns the current number of pending (unconfirmed) transactions in the Monero mempool.
$0.001/messageReturns the current Zcash blockchain height, verification progress, and best block hash from a live zebra node.
$0.001/messageReturns the timestamp, age, hash, difficulty, and size of the most recent Zcash block.
$0.001/messageSubmits a locally-signed raw Ethereum transaction privately to block builders, bypassing the public mempool to prevent frontrunning and sandwich attacks.
$0.5/messageReturns the current recommended transaction fee for the Monero network, including fee-per-byte and estimated total fee at various priority levels.
$0.001/messageReturns the current recommended Monero transaction fee in piconero per byte (and per kB) for optimal transaction inclusion.
$0.001/messageAdd credit to an existing Seneschal private watch monitor for Monero or Zcash payment detection, extending its active watching period.
$0.1/messageScan historical Monero or Zcash blockchain data using a view key to retrieve past transactions and notes for a given address up to a specified block height
$0.5/messageAdds $5 USD of credit to an existing Monero/Zcash payment watch subscription, paid via x402 USDC on Base
$5/messageAdds credit to an existing Monero/Zcash payment watch subscription, keeping the watch active so webhooks continue to fire when payments arrive.
$1/messageReturns a feed of the most recent DeFi liquidation events on Ethereum mainnet, sourced from Seneschal's block builder telemetry.
$0.001/messageReturns the current top Ethereum mainnet block builder based on live block-building telemetry data
$0.001/messageReturns real-time data on liquidatable DeFi positions on Ethereum mainnet, useful for MEV bots, liquidators, and block builders.
$0.001/messageReturns the current Zcash mempool transaction count and total size in bytes as a single-fact snapshot.
$0.001/messageRetrieves current builder share and MEV telemetry data from Seneschal's Ethereum mainnet block builder.
$0.001/messageRetrieves the current Ethereum mainnet block builder bid from Seneschal's MEV-boost compatible block builder
$0.001/messageReturns the current count of Ethereum positions at risk of liquidation, providing free liquidation telemetry for DeFi monitoring.
$0.001/messageReturns metadata about how current the Seneschal service's data is, useful for verifying API health and data staleness before relying on payment watch or block builder outputs.
$0.001/messageReturns the cheapest available flash loan offer across DeFi protocols on Ethereum mainnet
$0.001/message