
Screen Base smart contracts and B20 tokens: free on-chain check, paid Flash Audit over x402 (USDC).
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Paid over x402 in USDC on Base, from 0.0049 per call. Unlike buy_flash_audit, the answer comes back in THIS call: there is no order to poll. A first read of an address can take up to 60s: keep the connection open. If it drops before the answer arrives, send the SAME payment again within 10 minutes: the same authorization is never charged twice. Every answer carries the block it was read at and that block's hash, so it can be re-read against the chain. Call contract_data_catalog first for the list and prices. Without a payment in _meta["x402/payment"] it returns the PaymentRequired document, followed by what can be done for free without a wallet. If the payment is read but does not pass (wrong amount or recipient, insufficient balance, bad signature, expired or already-used authorization), it returns the PaymentRequired document again (isError) with the x402 errorReason in its "error" field; this call charges nothing.
Which fact to buy. See the catalog tool.
Contract or token address on Base mainnet (eip155:8453). Required for every product whose catalog entry says needsTargetAddress=true.
This tool isn't marked read-only, so it may change something on the server or in an account you connected.
Paid over x402 in USDC on Base, from 0.0049 per call. Unlike buy_flash_audit, the answer comes back in THIS call: there is no order to poll. A first read of an address can take up to 60s: keep the connection open. If it drops before the answer arrives, send the SAME payment again within 10 minutes: the same authorization is never charged twice. Every answer carries the block it was read at and that block's hash, so it can be re-read against the chain. Call contract_data_catalog first for the list and prices. Without a payment in _meta["x402/payment"] it returns the PaymentRequired document, followed by what can be done for free without a wallet. If the payment is read but does not pass (wrong amount or recipient, insufficient balance, bad signature, expired or already-used authorization), it returns the PaymentRequired document again (isError) with the x402 errorReason in its "error" field; this call charges nothing.
| Argument | Type | Description |
|---|---|---|
| product* | string | Which fact to buy. See the catalog tool. |
| targetAddress | string | Contract or token address on Base mainnet (eip155:8453). Required for every product whose catalog entry says needsTargetAddress=true. |
{
"type": "object",
"allOf": [
{
"if": {
"required": [
"product"
],
"properties": {
"product": {
"not": {
"const": "estado-cadena"
}
}
}
},
"then": {
"required": [
"targetAddress"
]
}
}
],
"required": [
"product"
],
"properties": {
"product": {
"enum": [
"codigo-verificado",
"proxy-implementacion",
"poderes-admin",
"estado-cadena",
"concentracion-tenedores",
"poderes-emisor-b20",
"cribado-completo"
],
"type": "string",
"description": "Which fact to buy. See the catalog tool."
},
"targetAddress": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$",
"description": "Contract or token address on Base mainnet (eip155:8453). Required for every product whose catalog entry says needsTargetAddress=true."
}
},
"additionalProperties": false
}Paid over x402 in USDC on Base. Without a payment in _meta["x402/payment"] it returns the PaymentRequired document (isError), followed by how a person without a wallet can buy the same report in the web store. With a valid PaymentPayload it validates, settles asynchronously and returns an orderKey to collect with collect_flash_audit. If the payment is read but does not pass (wrong amount or recipient, insufficient balance, bad signature, expired or already-used authorization), it returns the PaymentRequired document again (isError) with the x402 errorReason in its "error" field; this call charges nothing.
| Argument | Type | Description |
|---|---|---|
| language | string | Report language. Defaults to "en". |
| targetAddress* | string | Contract or B20 token address on Base mainnet (eip155:8453), 0x + 40 hex. |
{
"type": "object",
"required": [
"targetAddress"
],
"properties": {
"language": {
"enum": [
"es",
"en",
"zh",
"ru",
"pt",
"tr",
"fr",
"de",
"id",
"vi",
"ko"
],
"type": "string",
"description": "Report language. Defaults to \"en\"."
},
"targetAddress": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$",
"description": "Contract or B20 token address on Base mainnet (eip155:8453), 0x + 40 hex."
}
},
"additionalProperties": false
}Free, no wallet. Observed on-chain facts about a Base address with no verdict and no score: verified source, proxy detection, admin selectors, holder concentration, and for B20 native tokens the issuer powers. Rate limited; a monthly quota applies.
| Argument | Type | Description |
|---|---|---|
| address* | string | Contract or B20 token address on Base mainnet (eip155:8453), 0x + 40 hex. |
{
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$",
"description": "Contract or B20 token address on Base mainnet (eip155:8453), 0x + 40 hex."
}
},
"additionalProperties": false
}Status of an x402 order while it settles and generates; once DELIVERED, the report JSON itself. Poll every 10-15 seconds. Free.
| Argument | Type | Description |
|---|---|---|
| orderKey* | string |
{
"type": "object",
"required": [
"orderKey"
],
"properties": {
"orderKey": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
}
},
"additionalProperties": false
}Free, no wallet. Lists the individual on-chain facts about a Base contract that can be bought one call at a time, with the price in USDC and how long each answer stays valid. Read this before paying: the bundle costs less than buying the parts.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}Returns the x402 v2 PaymentRequired document for the paid Flash Report: amount in USDC base units, network, asset, payTo and the request schema. Free. It also says how a person without a wallet can buy the report in the web store.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}