POST /accounts/{account_id}/workers/observability/telemetry/live-tail

Your Cloudflare account ID.

Default value: "application/json"

Apply filters to the query. Supports nested groups via kind: 'group'.

Child filter nodes. Each can be a leaf filter or another nested group.

Logical operator for combining child filters: 'and' (all must match) or 'or' (any must match).

Valid values:

• "AND"
• "and"
• "or"
• "OR"

Filter field name. Use verified keys from previous query results or the keys endpoint. Common keys include $metadata.service, $metadata.origin, $metadata.trigger, $metadata.message, and $metadata.error.

Comparison operator. String operators: includes, not_includes, starts_with, ends_with, regex. Existence: exists, is_null. Set membership: in, not_in (comma-separated values). Numeric: eq, neq, gt, gte, lt, lte.

Valid values:

• "not_in"
• "eq"
• "regex"
• ">"
• "NOT_IN"
• "is_null"
• "<"
• "ends_with"
• "INCLUDES"
• "!="
• "<="
• "includes"
• "lte"
• "not_includes"
• "MATCH_REGEX"
• "starts_with"
• "gt"
• "gte"
• "exists"
• "="
• "EXISTS"
• "lt"
• "in"
• "IN"
• "DOES_NOT_INCLUDE"
• ">="
• "DOES_NOT_EXIST"
• "ENDS_WITH"
• "neq"
• "STARTS_WITH"

Data type of the filter field. Must match the actual type of the key being filtered.

Valid values:

• "string"
• "boolean"
• "number"

Comparison value. Must match actual values in your data — verify with the values endpoint. Ensure the value type (string/number/boolean) matches the field type. String comparisons are case-sensitive. Regex uses RE2 syntax (no lookaheads/lookbehinds).

Discriminator for leaf filter nodes. Always 'filter' when present; may be omitted.

Valid values:

• "filter"

Set a flag to describe how to combine the filters on the query.

Valid values:

• "AND"
• "and"
• "or"
• "OR"

Default value: "and"