finance · Listed · base · Found · 11 endpoints · Gateway-eligible
base-onchain-tools
base-onchain-tools
Pre-flight check on a Base mainnet address before paying it. Returns contract-vs-EOA, ETH and USDC balances, outbound transaction count, and warnings about whet
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
ROUTE
Route when you need finance at published x402 prices.
confidence
78%
source
signal
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=cat-base-onchain-tools-dolerite-workers-dev
When to call
- Need finance via x402 and want Cleared-indexed payTo with a live scorecard.
- Budget between $0.001 and $0.04 per call on published endpoints.
- Pre-flight check on a Base mainnet address before paying it. Returns contract-vs-EOA, ETH and USDC balances, outbound transaction count, and warnings about whet
Risks
- Found — not operator-owned; claim status unknown.
- No Cleared settlement receipt on file yet.
- Mesh enrichment not cached — settle integrity unverified here.
- No Gateway traffic yet — market share unproven.
Price posture
Published 11 endpoints from $0.001 to $0.04.
Settle posture
Mesh quiet — no Merona/ScoutScore cache yet. Treat settle risk as unknown.
Category · Gateway
finance · no Gateway routes yet — early / unproven on Cleared market share.
Endpoint hints
GET /v1/base/address-checkPre-flight check on a Base mainnet address before paying it. Returns contract-vs-EOA, ETH and USDC balances, outbound transaction count, and warnings about whet
GET /v1/base/contract-typeIdentify what a Base contract actually is: ERC-20, ERC-721 or ERC-1155 via ERC-165, plus proxy detection across EIP-1967, EIP-1822 and the legacy ZeppelinOS slo
GET /v1/base/allowanceERC-20 allowance on Base: how much a spender may pull from an owner, whether it is an unlimited approval, the owner balance, and how much is actually spendable
GET /v1/base/tokenERC-20 token metadata on Base mainnet: name, symbol, decimals and total supply, read straight from the contract. Query param: address.
GET /v1/base/gasLive Base mainnet gas oracle: current gas price, base fee, recent base fee trend, priority fee percentiles, and the estimated cost of a plain ERC-20 transfer in
GET /v1/base/portfolioETH and USDC balances for up to 20 Base addresses in a single call, with per-address funded flags and totals. One request instead of forty RPC round trips. Quer
GET /v1/base/token-priceUSD price for ANY token on Base, not just the two assets Chainlink covers. Discovers every Uniswap V3 pool against WETH and USDC across all four fee tiers, read
GET /v1/base/tx-checkConfirm a Base mainnet transaction: success or reverted, block, confirmations and finality, gas used, and every ERC-20 transfer it moved with USDC amounts decod
Evidence (Cleared)
- → Intake verified · Gateway-eligible
- → Trust 70/100 · pass · tier listed
- → Protocol x402 · base
- → Manifest reachable · schema valid
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
Base Address Check
$0.002GET https://base-onchain-tools.dolerite.workers.dev/v1/base/address-checkPre-flight check on a Base mainnet address before paying it. Returns contract-vs-EOA, ETH and USDC balances, outbound transaction count, and warnings about whether funds sent there can actually be moved out again. Query param: address.
Base Contract Type and Proxy Detection
$0.002GET https://base-onchain-tools.dolerite.workers.dev/v1/base/contract-typeIdentify what a Base contract actually is: ERC-20, ERC-721 or ERC-1155 via ERC-165, plus proxy detection across EIP-1967, EIP-1822 and the legacy ZeppelinOS slot, with the current implementation address and a warning when behaviour is upgradeable. Query param: address.
Base ERC-20 Allowance Check
$0.001GET https://base-onchain-tools.dolerite.workers.dev/v1/base/allowanceERC-20 allowance on Base: how much a spender may pull from an owner, whether it is an unlimited approval, the owner balance, and how much is actually spendable right now. Defaults to USDC. Query params: owner, spender, optional token.
Base ERC-20 Token Metadata
$0.001GET https://base-onchain-tools.dolerite.workers.dev/v1/base/tokenERC-20 token metadata on Base mainnet: name, symbol, decimals and total supply, read straight from the contract. Query param: address.
Base Gas Oracle
$0.001GET https://base-onchain-tools.dolerite.workers.dev/v1/base/gasLive Base mainnet gas oracle: current gas price, base fee, recent base fee trend, priority fee percentiles, and the estimated cost of a plain ERC-20 transfer in ETH. No parameters.
Base Multi-Address Balances
$0.003GET https://base-onchain-tools.dolerite.workers.dev/v1/base/portfolioETH and USDC balances for up to 20 Base addresses in a single call, with per-address funded flags and totals. One request instead of forty RPC round trips. Query param: addresses (comma-separated).
Base Token Price via Uniswap V3
$0.006GET https://base-onchain-tools.dolerite.workers.dev/v1/base/token-priceUSD price for ANY token on Base, not just the two assets Chainlink covers. Discovers every Uniswap V3 pool against WETH and USDC across all four fee tiers, reads sqrtPriceX96 and does the Q96 fixed-point maths, prices off the deepest pool, ignores deployed-but-never-traded pools whose prices are nonsense, and cross-checks the remaining ones to flag thin or manipulated liquidity. Query param: address.
Base Transaction Check
$0.002GET https://base-onchain-tools.dolerite.workers.dev/v1/base/tx-checkConfirm a Base mainnet transaction: success or reverted, block, confirmations and finality, gas used, and every ERC-20 transfer it moved with USDC amounts decoded. Verify a payment actually landed. Query param: hash.
Base Transfer Simulation and Revert Decoder
$0.008GET https://base-onchain-tools.dolerite.workers.dev/v1/base/simulate-transferWill this token payment actually go through, and if not exactly why. Simulates the transfer without spending gas, decodes the real revert reason (Error(string), Solidity Panic codes translated to English, or an unknown custom error selector), and separately reports balance and allowance blockers. Knows a caller with no ETH is fine for a gasless EIP-3009 transfer or a sponsored relayer. Query params: from, to, amount, optional token and spender.
Base Unverified Contract Bytecode Audit
$0.04GET https://base-onchain-tools.dolerite.workers.dev/v1/base/contract-auditWhat an UNVERIFIED Base contract can actually do, which is exactly where block explorers show nothing. Disassembles the deployed bytecode with a PUSH-aware opcode walk, strips the Solidity metadata trailer, recovers function selectors from the dispatch table and names them against a keccak-derived signature database, then reports admin powers (mint, blacklist, freeze, pause, trading switches, adjustable fees, upgrade hooks), dangerous opcodes (DELEGATECALL, SELFDESTRUCT, CALLCODE, CREATE2), which token standards it genuinely implements, and whether it supports EIP-3009 so it can be paid gaslessly over x402. Proxies are detected and followed to their implementation. Query param: address.
Chainlink ETH and BTC Price on Base
$0.001GET https://base-onchain-tools.dolerite.workers.dev/v1/base/priceETH/USD and BTC/USD read live from Chainlink on-chain price feeds on Base, including the feed description, decimals, update timestamp, age in seconds and a staleness flag. Oracle data from the chain itself, not a third-party API. No parameters.
Checks
reachable
valid
2026-08-24T22:30:23.280Z
Recheck delta: +15 (55 → 70)
No settlement evidence found in chain signals.
Gateway routing
Verified (or paid Cleared) — Gateway may route this origin before pay.
Claim this listing to upgrade to Cleared attestation.
Claim listing