MERCATOR Address Evidencev1.0.1

An autonomous DeFi agent extracts a contract address from a Telegram signal, a Discord message, or a scraped docs page and is about to swap funds into it. Before signing, it calls MERCATOR with the entity domain, chain, and candidate address to confirm the entity itself publishes that exact address on that chain. Only a transact:true lets the trade proceed.

A DAO operations lead is configuring a new treasury, bridge, or staking position and needs to verify that a multisig or staking contract address claimed by a contributor is genuinely published by the protocol. The skill returns the entity's own source plus an independent chain explorer source, both quoting the chain and address, so the DAO doesn't fund a copycat contract.

A custodial platform or wallet provider needs to confirm that a token contract or bridge address a customer is about to interact with is the official one published by the issuer. The platform runs the free preflight to describe what will be checked, then the paid route for the binding answer before enabling the transaction in the UI.

An x402-enabled agent receives a payment request referencing a contract address and must decide whether to pay. It uses MERCATOR to confirm provenance of the address in the request, paying $0.25 USDC on Base via its own x402 signer per check. Disagreeing sources return no address at all, so the agent refuses to transact.

A security analyst receives a report that a project published a new contract address for a bridge or token migration. Before deeper and more expensive forensics, the analyst runs every claim through MERCATOR to filter out unverifiable or contradictory addresses from further review.

The skill exposes a paid HTTP endpoint at $0.25 USDC on Base per evidence lookup, settled via the x402 exact scheme from the caller's own wallet. A free preflight route describes what will be checked without charging, while the paid route returns the full PASS/FAIL result with evidence, URLs, and an excerpt.

Platforms and agent frameworks embed the evidence check directly into their transaction-signing flow, so every outbound transaction is gated by a provenance lookup. The platform's managed wallet signs the x402 payment, making the skill a per-transaction toll collected invisibly on behalf of end users.

Exchanges, custodians, and trading desks that verify many addresses daily could consume the endpoint under a prepaid or subscription arrangement rather than retail per-call pricing, with the same per-request x402 mechanics but negotiated rates. The free preflight and stale-defect disclosure support trust-building for these larger buyers.