All projects matching “transaction”

Coinbase-hosted facilitator that verifies and settles x402 payments, with KYT and OFAC screening on each transaction. Also runs the CDP Bazaar discovery catalog.

Public, account-free preflight for an autonomous x402 payment. Validates the merchant's exact PAYMENT-REQUIRED challenge against the intended request, checks Base USDC payment integrity and public merchant/payTo risk evidence, and returns APPROVED, REVIEW or DENIED with signed proof. It does not grant spending authority: an APPROVED result means the transaction evidence is clear enough to proceed

BeCoder tx-decoder — 0.005 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 per call

Pre-transaction counterparty check for an EVM wallet or contract: OFAC SDN screening, GoPlus malicious-address flags (phishing, drainers, laundering, mixers ...), and a live on-chain profile (EOA / contract / EIP-7702, nonce, balance, ENS, first transaction, contract verification). Returns risk_level, a plain recommendation (do_not_transact / review_before_transacting / no_red_flags_found), every

Simulate an EVM transaction before signing. Decodes the calldata into a named function with arguments and security risk flags, AND runs a keyless static eth_call preview to tell you whether the transaction would succeed or revert (with the decoded revert reason). Use it to catch a failing or malicious transaction before you broadcast it. Read-only, no keys, no node infra. Asset-level change tracin

Check Base transaction receipt status by transaction hash. Determine whether the transaction is pending, confirmed successful, or confirmed reverted, with receipt, block, and gas details.

SEC Form 4 insider transactions by ticker or insider name: open-market buys/sells, grants, exercises and other reported transactions with shares, price, and value. Trailing 12 months of public-domain SEC EDGAR bulk data (Forms 4/4-A, non-derivative transactions).

Price a swap without building a transaction. Returns expected input, output, and gas without constructing an executable transaction. Quotes are informational and can change with liquidity and chain state.

Fee inputs for the next transaction: gas ladder for Base or Ethereum (slow/normal/fast, priority fee, max fee, EIP-1559 base fee) or the priority-fee ladder for Solana, plus the native token price. One call for the numbers a transaction builder needs.

A signed, timestamped read from Base mainnet: whether a transaction landed and in which block, an address's ETH and USDC balance, or the current block height and gas price. Use the tx query when you paid over x402, received settlement_pending, and need it resolved — the transaction is in a block with status 1, or it is not. Read through a commercial node, not the public RPC. Verify with soren.com/

Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM and Solana transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spen

Verify an onchain payment or investigate a failed Base transaction in one call with transaction, receipt, success status, confirmations, gas and fee context.

Ethereum mainnet JSON-RPC from an independently operated full node. One call per payment, no account or API key. Serves eth_, net_ and web3_ methods. Blocks, transactions, receipts and logs from the Merge (block 15537394) onward. Current state only, not an archive node: historical state calls are refused, not charged. eth_getLogs capped at 10000 blocks. Raw transactions go out via public relays. P

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every

What a Base transaction costs right now, with the RPC provider and trust level behind the number, so a caller can tell a credentialed reading from a degraded one before pricing a transaction.

Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.

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.

x402-preflight: confirm your wallet can transact, and see your balance, in one certified call. Pay $0.01 USDC on Base, get a signed on-chain-anchored receipt. The safe first transaction before you ship real volume.

ZayGuard Pre-Send Safety Check — an evidence-based transaction assessment: pay $0.05 USDC through x402 for a read-only Base or Arbitrum One transaction result; payment is collected on Base.

Returns the most recent SEC Form 4 insider-transaction filings for a US-listed ticker, parsed from EDGAR ownership XML into normalized JSON: issuer, reporting owners, transactions with share counts and prices, and footnotes. Data source: SEC EDGAR public filings.

Solana transaction preview BEFORE signing: simulate an unsigned or signed legacy/v0 transaction (address lookup tables resolved) and get SOL and SPL/Token-2022 balance changes for your wallet, programs invoked (known/unknown), fee estimate and red flags (token approvals, authority/owner changes, close-to-other, wallet reassign, >90% SOL loss, simulation failure). JSON body. Optional Pre-Sign Brief

Returns current recommended Bitcoin fee rates in sat/vB for fastest, 30-minute, 1-hour, and economy confirmation targets, plus mempool transaction count and vsize. Use it to price a transaction or report network congestion right now.

Repair a failing Solana transaction: exact cause, rebuilt unsigned transaction, simulation proof, verification.

Explain a Base-mainnet transaction in plain English. Input: a transaction hash. Returns strict JSON: summary (1-3 sentences), action_type (swap, erc20_transfer, nft_mint, bridge_out, approval_for_all, ...), assets_moved[] (token, amount, from, to), counterparties[] (labeled where known: routers, bridges, marketplaces), risk_flags[] (unverified_contract, unlimited_approval, approval_for_all, known_

Stop opening five explorers to price one transaction: one GET returns what each chain is charging for gas right now — for base, eth, arbitrum, optimism and polygon: the current gas price in gwei (with the raw wei the RPC returned), the latest block's base fee, the priority fee a 50th-percentile transaction actually paid across the last five blocks, the next block's base fee under the EIP-1559 form

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address, contract, score, signals.

Current gas price on Base and what a transaction costs in USD right now: base fee, priority tiers, ready-to-sign maxFeePerGas.

Use when a Solana-side agent needs the current network state before sending a transaction, as often as it likes. Returns the current slot, block height and block time (unix and ISO) plus a prioritization-fee summary (min, median, p75, max in microlamports per compute unit, slots sampled, suggested fee = p75) from the public RPC, optionally scoped to up to five writable accounts. $0.002 per call vi

Is Base live, and what is the latest block? Returns number, timestamp, gas used, gas limit and transaction count of the latest block, or of a given numero ($0.001 per call).

Use when you need a wallet portfolio value in USD, a wallet net worth or token balances with USD value for a 0x address. Do not use for solana wallets, transaction history, NFTs, DeFi positions or long-tail tokens. Returns JSON with a wallet's USD value on Ethereum and Base in one call: native and major-token balances priced on-chain from Uniswap v3 pools on Base, per-chain totals and the tokens l