Blockchain And Crypto x402 offerings

🆕 A Base transaction by hash, unedited: from, to, value in wei and ETH, nonce, gas, fee caps, type, and the 4-byte method selector with the calldata size. Flags a contract creation (null to) and a still-pending transaction (null block) rather than leaving you to infer either. Unknown hashes answer found:false, not an error.

Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.

Base USDC lending APY. Should you park this wallet's USDC on Base? Snapshot of native USDC + ETH, then the same size-aware Aave V3 vs Morpho Gauntlet USDC Prime yield pick (USD per year, days to break even, skip if gas eats it). Not a deposit instruction.

Base USDC lending APY. Live USDC lending yield on Base, read on-chain: Aave V3 USDC vs Morpho Gauntlet USDC Prime. Size-aware pick for parking idle USDC: USD per year, days to break even vs Base gas, skip if entry is uneconomic. Conservative two venues only. No leverage, looping, memecoins, or perps.

Live USDC lending APY on Base, read on-chain: Aave V3 USDC vs Morpho Gauntlet USDC Prime. Size-aware pick for parking idle USDC: USD per year, days to break even vs Base gas, skip if entry is uneconomic. Conservative two venues only.

Provides a wallet's USDC activity summary on Base: first/last seen, transfer count, total USDC in/out and net flow; made by Heurist.

Analyze a Base wallet address for on-chain wallet due diligence, transaction-history research, and risk triage. Returns native balance, transaction and token-transfer counts, first and last activity, contract status, a heuristic activity score, and risk flags as JSON. Not identity verification or a guarantee that an address is safe.

One decision-ready Base feed instead of a chain of raw calls: discovers currently boosted/new Base tokens, joins live DEX liquidity, volume, transaction flow and momentum, adds GoPlus honeypot/tax/owner-risk checks, then ranks the candidates by transparent traction and risk rules. Returns REVIEW/WATCH/LOW_SIGNAL/REJECT — never a promise to profit or an automatic trade. Built for research and trading agents that need to narrow a noisy launch feed before deeper diligence.

🆕 Beryl (2026-06-25) cut the single-proof withdrawal window from 7 days to 5, with a dual-proof fast path at ~1 day. Given a Base withdrawal-initiation tx, this decodes the L2ToL1MessagePasser event (the withdrawalHash, target & value needed to prove/finalize on L1) and estimates the finalization windows under the post-Beryl rules. For agents managing cross-chain liquidity.

Return live Base gas fees and an estimated transaction cost for a caller-supplied gas limit.

Plan a budget-aware route for agent chain-data tasks across RPC reads, indexed data, cached intelligence, and payment review.

Guard an agent payment for RPC or indexed chain-data access with endpoint, recipient, amount, budget, and signer-directive checks.

Monitor Base DEX price, liquidity, volume, and trade activity for a token.

Return a source-backed live USDC to TWD composite quote for autonomous-agent budget checks.

Return recent decoded Base event logs at or after a caller-supplied block.

Run BlockchainSecurity multi-hop fund-flow tracing from a starting address through an x402 paid wrapper.

Inspect a Base token contract, public reputation, holder count, and DEX liquidity before trading.

Verify a Base transaction contains the expected canonical USDC payment.

Summarize a Base merchant's public USDC receipt history and payer concentration.

Extract canonical Base USDC transfers and transaction finality from a transaction hash.

Return live Base USDC, USDT, and DAI balances with public USD reference rates.

Inspect Base source verification, compiler metadata, proxy type, and resolved implementations.

Preflight an indexed chain-data query before payment: schema discovery, query type, estimated rows, cost fit, and safety flags.

Inspect a Base address before an autonomous payment or contract interaction.