Wallet Balance Observations CSV Column Projection Validator

Use this endpoint when you need a lightweight, pre-configured column projection validator specifically shaped for wallet balance observation CSVs with fields like observation_id, observed_on, wallet_address, native_balance, and token_balance. It is ideal when you want to verify a declared CSV contract without external enrichment, need fast per-call validation at low cost ($0.01 USDC), and your data fits within 1000 rows. Prefer alternatives if you need schema inference, large-batch processing beyond 1000 rows, or validation of unrelated CSV formats.

• CSV exceeds 100,000 character limit — request rejected
• More than 1000 rows submitted — only first 1000 may be processed or error returned
• Invalid delimiter used (not comma, semicolon, or tab) — parse error
• Cell exceeds max_cell_length limit — validation failure reported
• Value outside minimum/maximum range — flagged in report
• Category value not in allowed_categories list — flagged as violation
• Malformed or unquoted CSV causing parse failure — error response