Token claims, with the evidence attached.

Give your bot or community a brief that separates supported claims from open questions. Every assessment includes its sources. Each Base token brief costs 0.25 USDC.

Buy one brief Read the free sample

A real, recorded example

Base USDC. This sample shows the evidence available when it was generated; it is not a live feed.

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View sample JSON

Try it on your token

Check a Base ERC-20 contract and up to three claims. The browser form checks one claim. The API supports three.

Onchain coverage: decimals and total supply at a recorded block. Official project-source coverage currently includes Base USDC only. Other claims may remain unknown. This brief does not assess safety, reserves, liquidity or holders.

Base contract address Claim to check

Use MetaMask with USDC on Base. Review the wallet signature before approving. No direct transfer or subscription is required.

For bot operators

Use the public x402 API without an account. Generate a private purchase key once, and keep it for retries and recovery.

npm install @x402/fetch @x402/evm viem
curl -o token-brief-client.mjs https://engine.beehivewebstudio.com/token-briefs/client.mjs
# Run with your local payer key and optional TOKEN_ADDRESS / TOKEN_CLAIM.
# The script asks you to authorize exactly one purchase.

Download the client example · API reference