Check Base ERC-20 decimals and total supply at a recorded block, and up to three
Check Base ERC-20 decimals and total supply at a recorded block, and up to three claims against cited evidence. Returns supported, contradicted, or unknown. Official project coverage currently includes Base USDC only. No safety verdict, liquidity, or holder analysis. One brief costs 0.25 USDC; retain your private Idempotency-Key for recovery.
Answeringour last check, 2026-09-28
1 of 1checks answered this week
678 msmedian answer time
$0.25listed price per call
$0.25price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://engine.beehivewebstudio.com/v1/token-briefs/brief
| Category | Market data |
|---|---|
| Provider host | engine.beehivewebstudio.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.25 | 678 ms |
Example input (from the provider)
{
"headers": {
"Idempotency-Key": "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
},
"method": "GET",
"queryParams": {
"claim": "Circle lists this exact contract as USDC on Base.",
"contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"headers": {
"additionalProperties": false,
"properties": {
"Idempotency-Key": {
"description": "Generate a fresh cryptographically random 32-byte hex secret per purchase. Never reuse the example. Keep it for retries and recovery; do not disclose it.",
"pattern": "^[0-9a-f]{64}$",
"type": "string"
}
},
"required": [
"Idempotency-Key"
],
"type": "object"
},
"method": {
"const": "GET"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"claim": {
"description": "First proposition to check.",
"maxLength": 500,
"minLength": 1,
"type": "string"
},
"claim2": {
"maxLength": 500,
"minLength": 1,
"type": "string"
},
"claim3": {
"maxLength": 500,
"minLength": 1,
"type": "string"
},
"contractAddress": {
"description": "Base ERC-20 contract; defaults to native USDC.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams",
"headers"
],
"type": "object"
},
"output": {
"additionalProperties": false,
"properties": {
"example": {
"type": "object"
},
"type": {
"const": "json"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}