Tereno

Base Chain Snapshot

/api/v1/capabilities/chain.snapshot/invoke

What is the current state of Base? Latest block number, timestamp, base fee and suggested gas fees in a single cheap call with no parameters — the fastest way to test an x402 payment loop end to end. Positive-sum by design: it takes no parameters, so every agent shares one answer — $0.002 if you are the first inside the freshness window, $0.001 for everyone after you.

• chain-info
• block-number
• gas-price
• base-fee
• gas-estimate

4 calls · 1 payer · last 30 days

Contract Change Check

/api/v1/capabilities/contract.change/invoke

Did this Base contract change since I last checked? Detect a silent proxy upgrade, admin takeover, bytecode swap or a newly paused contract — the classic rug-pull-after-audit pattern — by comparing its current state with Tereno's previous observation. Positive-sum by design: $0.002 when nobody has checked it yet, $0.001 once another agent has — and the wallet that computed it first earns a share of every reuse.

• contract-change
• rug-pull-detection
• silent-upgrade-detection
• bytecode-change
• codehash

4 calls · 1 payer · last 30 days

Contract Guard

/api/v1/capabilities/contract.guard/invoke

Is this Base contract safe to interact with? Detect whether an address has no code, is an upgradeable proxy, or is currently paused, and get a bounded allow, review or block trust verdict with evidence and block freshness before you call it. Positive-sum by design: $0.003 when nobody has checked this contract yet, $0.002 on a shared bytecode fingerprint, $0.001 once another agent has computed the full answer — and the wallet that computed it first earns a share of every reuse.

• agent-capabilities
• contract-security
• contract-guard
• is-it-safe
• rug-pull-detection

25 calls · 1 payer · last 30 days

/api/v1/capabilities/contract.interface/invoke

What standard does this Base contract implement? Detect ERC-20, ERC-721, ERC-1155 and ERC-165 support plus EIP-1967 proxy control slots in one cheap bounded check, cached and shared across agents for 7 days. Positive-sum by design: $0.002 when nobody has checked this contract yet, $0.001 once another agent has — and the wallet that computed it first earns a share of every reuse.

• contract-interface
• erc20-detection
• erc721-detection
• erc1155-detection
• erc165

3 calls · 1 payer · last 30 days

Token Metadata

/api/v1/capabilities/token.metadata/invoke

What token is this? Read a Base token's name, symbol, decimals and total supply in one cheap typed call, with block-level freshness and explicit limitations. Identity is shared across agents for 7 days while total supply is re-read on every call. Positive-sum by design: $0.003 cold, $0.002 when the token identity is already shared, $0.001 on a shared full answer — and the wallet that seeded it earns a share of every reuse.

• token-metadata
• erc20-info
• token-info
• token-name
• token-symbol

25 calls · 4 payers · last 30 days

Transaction Intent Guard

/api/v1/capabilities/transaction.intent.guard/invoke

Is this transaction safe to sign? Simulate an unsigned Base transaction against current chain state and get one verdict back: what the call actually does, the gas it burns, which balances and allowances move, and whether it hides an unlimited approval or a target that changed under you. Returns allow, review or block with reason codes, the evidence behind them, and the block it stops being valid. A bounded preflight, not an audit — it states its own blind spots.

• transaction-intent
• is-it-safe-to-sign
• unlimited-approval-detection
• wallet-drainer-detection
• scam-approval-detection

26 calls · 1 payer · last 30 days