Blockchain And Crypto x402 offerings

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Full HODL-waves history: supply split across 12 age bands per weekly snapshot.

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Coin Days Destroyed (CDD) spike classifier (state normal/elevated/spike/extreme + z-score vs 30-day baseline).

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Live mempool fee-pressure signal (state low/moderate/high/severe + score in sat/vB).

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. 90- and 365-day rolling coin-velocity time series derived from CDD and supply.

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Top 10 addresses by balance from the weekly UTXO-set snapshot, with labels.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Known peer addresses from the node's address manager. Bitcoin Core getnodeaddresses.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Currently banned peer IPs and subnets from chainquery's independent full node. Bitcoin Core listbanned.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Node uptime in seconds from chainquery's independent full node. Bitcoin Core uptime.

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transa…

Recent transaction history for an address, normalized across Ethereum, Base, Arbitrum, Optimism, Polygon, Bitcoin, and Solana -- direction, counterparty, and value where the chain's data model makes …

Provides chain-level TVL (Total Value Locked) data for Solana, Ethereum, or all chains with optional result limits.

Token safety check for an ERC-20 on Base: is this token a scam, a honeypot, or safe to hold? Examines ownership and mint authority, proxy upgradeability, liquidity and holder concentration, transfer-restriction patterns. Returns hold/caution/avoid with a score and the signals behind it. Heuristic static analysis, not a security audit — a proxy contract can change its implementation after this check.

Latest Base block: number, timestamp and hash. The cheapest call on the service — useful as a liveness and connectivity check.

Native ETH and ERC-20 token balances for a Base address in one call, read live from chain at a stated block height.

Recent transfer activity for an ERC-20 on Base: transfer count and volume over the sampled window, for judging whether a token is actually in use. Live chain read.

Native ETH and ERC-20 token balances for a Base address in one call, read live from chain at a stated block height.

Wallet risk profile for a Base address before you pay it or accept payment from it: EOA or contract, first and last seen, transaction and counterparty counts, contract-verification status, and any flags raised. Behavioural signals only — they describe activity, not intent.

Resolve a token symbol or contract address to the canonical Base contract, so an agent swapping or accepting 'USDC' gets the real one. Catches lookalike and impostor contracts sharing a symbol.

Total and circulating supply for an ERC-20 on Base, read live from chain with decimals applied and the block height returned.

Verify a Base transaction actually did what a counterparty says it did: confirmation depth, success or revert, value, token, sender and recipient. Use it to confirm an inbound payment before releasing goods or data.

Base gas price oracle: current gas cost on Base, base fee and priority fee in gwei, at a stated block height. For agents deciding whether to transact now or wait.

Check a Base or BNB Chain (?chain=bsc) address before you pay it: a verdict label pay / hold / unknown with a human text (Pay, Hold, Inactive, No track record, Couldn't check or Payer hidden) and the one reason, such as active with real counterparties or a high-severity flag named. Under it, the evidence: every flag with its source, what was not assessed, and the EAS attestation if one exists. On-chain behavior only.

Check a Base or BNB Chain (?chain=bsc) address before you pay it: a verdict label pay / hold / unknown with a human text (Pay, Hold, Inactive, No track record, Couldn't check or Payer hidden) and the one reason, such as active with real counterparties or a high-severity flag named. Under it, the evidence: every flag with its source, what was not assessed, and the EAS attestation if one exists. On-chain behavior only.

TermiX escrow: every wallet that settled a job through Sep 29, tiered. CSV, one row per wallet.