Properties
| Name | Type | Description |
|---|---|---|
| contract | string | The 20-byte Base mainnet contract whose event logs are queried |
| topics | array | One required event-signature topic followed by optional indexed topic values or null wildcards. Signature-only scans are limited to 100 resolved blocks; adding an indexed value permits up to 2,000. |
| lookback_blocks | integer | Inclusive resolved Base blocks to scan; defaults to the 100-block signature-only ceiling and may be raised to 2,000 with an indexed topic value |
| limit | integer | Maximum newest-first validated logs returned |
| block_tag | string | Base block tag resolved once as the inclusive upper bound |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/apiacre-com/json-schema/apiacre-com-base-event-logs-input-schema.json",
"title": "BaseEventLogsInput",
"x-generated": "2026-10-30",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/apiacre-com-openapi.json#/components/schemas/BaseEventLogsInput",
"properties": {
"contract": {
"type": "string",
"maxLength": 42,
"minLength": 42,
"title": "Contract",
"description": "The 20-byte Base mainnet contract whose event logs are queried"
},
"topics": {
"items": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"type": "array",
"maxItems": 4,
"minItems": 1,
"title": "Topics",
"description": "One required event-signature topic followed by optional indexed topic values or null wildcards. Signature-only scans are limited to 100 resolved blocks; adding an indexed value permits up to 2,000."
},
"lookback_blocks": {
"type": "integer",
"maximum": 2000.0,
"minimum": 1.0,
"title": "Lookback Blocks",
"description": "Inclusive resolved Base blocks to scan; defaults to the 100-block signature-only ceiling and may be raised to 2,000 with an indexed topic value",
"default": 100
},
"limit": {
"type": "integer",
"maximum": 100.0,
"minimum": 1.0,
"title": "Limit",
"description": "Maximum newest-first validated logs returned",
"default": 50
},
"block_tag": {
"type": "string",
"enum": [
"latest",
"safe",
"finalized"
],
"title": "Block Tag",
"description": "Base block tag resolved once as the inclusive upper bound",
"default": "safe"
}
},
"type": "object",
"required": [
"contract",
"topics"
]
}
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