Five checks. One rule.

Trade Check

Know exactly what your agent is about to sign.

$0.25per check, or $1.50 for Medium inputs

What it catches

• A swap with no real price limit, or one that moves the price too far
• An approval or permit that grants too much: an unlimited amount or an unknown spender
• A fee far above the network rate
• A router, spender or token posing as the genuine contract
• A recipient made to look like a familiar address, the trick behind address poisoning

How it works. Send the exact unsigned transaction or EIP-712 permit. SECONDED reads the chain from two independent sources that must agree, simulates the transaction, decodes the call and quotes the trade against live pools. Two rival models then judge those verified facts.

The rule. It never answers “proceed” unless every call that moves value is fully decoded, every token’s identity is established and the amounts are known. If any of that is missing, the result is NOT VERIFIED and you are not charged; free NOT VERIFIED results are capped at 5 per wallet in any rolling 24 hours. A Uniswap Universal Router trade is fully decoded only through Uniswap’s official router deployments, which SECONDED pins and reviews; a trade that is not fully decoded never gets a “proceed”. A Robinhood stock token’s identity comes from Robinhood’s live list of stock tokens: chain, address and symbol must all agree.

What the receipt tells you. Each part runs when the input allows it — a permit, for example, carries no transaction to simulate, and slippage is checked only where the pool can be quoted. The signed receipt’s coverage list names every part as checked, partial, not checked or unavailable. Read it before acting: a part marked not checked was not verified, even next to an agreed answer.

Use it when your agent is about to sign a trade, an approval, a transfer or a permit on Base, Arc or Robinhood Chain.

Inputs and scope in the docs

Token Check

Spot a bad token before your agent touches it.

$0.25per check

What it catches

• A honeypot that lets you buy but not sell, caught by simulating a sale
• A heavy tax on every sale
• A token impersonating another
• Mint, freeze or upgrade powers still in someone else’s hands
• Contract source code that is not verified

How it works. SECONDED reads the token’s contract and state from two independent sources, simulates a sale and checks the source code. Two rival models judge the verified facts. A honeypot or a heavy sell tax is a verified fact with no warning label of its own: it blocks “proceed” and the result comes back NOT VERIFIED, free — treat it as stop.

Use it when your agent meets a new token on Base, Arc, Robinhood Chain or Base Sepolia.

Inputs and scope in the docs

Stock Token Check

Trade the real stock token, not a copy.

$0.25per check

What it catches

• A look-alike that copies the ticker and name, caught by matching Robinhood’s official list, or the Coinbase list in Base’s documentation, by chain and address, never by ticker alone
• A token whose trading is halted, or that is inactive, on Robinhood Chain; on Base, a token paused for a corporate action
• A price out of line with the reference price, when a current reference price is available; outside market hours, or during a halt or pause, the receipt marks the price part not checked

How it works. SECONDED verifies the token from two independent sources and, when a current reference price is available, compares your agent’s intended price with it; the receipt’s coverage says whether the price part was checked. Two rival models judge the verified facts. It checks the token; it never recommends a trade.

Use it when your agent is about to buy, sell or accept a stock token on Robinhood Chain or Base.

Inputs and scope in the docs

Agent Registry Check

Know who your agent is dealing with.

$0.25per check

What it catches

• An agent with no ERC-8004 registration
• A claimed owner or wallet that does not match the registry
• Revoked feedback, alongside what others have recorded about the agent

How it works. SECONDED reads the agent’s registry entry and feedback records from two independent sources, instead of taking the agent’s word for who it is. Two rival models judge the verified facts.

Use it when your agent is about to pay, hire or take instructions from another agent on Base, Arc or Robinhood Chain.

Inputs and scope in the docs

Scam Check

Don’t let a message talk your agent into anything.

$0.25per check; $1.50 Medium, $2.50 Large

What it catches

• Phishing and fake support contacts
• Prize lures and urgent requests to send funds
• Links to newly registered domains or freshly issued certificates
• Domains that imitate official ones

How it works. Two rival models each classify the message as benign, suspicious or malicious, with facts SECONDED looks up about the first five domains it links to: domain age, certificate age and look-alikes.

Use it when your agent receives a message it might act on.

Inputs and scope in the docs