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Relaystation Data Filter
x402
Relaystation Data Filter is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Filter rows in a dataset by a structured predicate — injection-safe, no formula evaluation — billed per MB processed
Price / call$0.01
Success—
StatusUnknown
How this service works
$0.0002/MB. Keep rows matching a structured predicate — injection-safe, no formula eval. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Output
Returns only the rows from the input dataset that match the specified structured predicate. The response contains the filtered subset of records in the same format as input, billed at $0.0002/MB of data processed, with a 1¢ minimum charge via x402 and any remainder auto-credited.
Example use cases
Filter customer records by status
“I have a list of customer records and I need to keep only the ones where account_status equals 'verified' and signup_date is after 2023-01-01 — can you filter it safely without any SQL injection risk?”
Subset product inventory by price range
“Take this product inventory dataset and return only the rows where price is between 10 and 50 and stock_quantity is greater than 0.”
Clean event log by severity level
“I've got an event log with thousands of rows — filter it down to only entries where severity equals 'error' or 'critical' so I can review the important ones.”
Technical details
Endpoint
POSThttps://api.relaystation.ai/v1/data/filterWhen to prefer
Choose this endpoint when you need to safely filter structured row-based data using a predicate without risking injection attacks or formula evaluation side effects. It is ideal for agents processing untrusted or user-supplied data where safe, sandboxed filtering is critical. Prefer this over SQL queries or spreadsheet formula engines when you need a lightweight, pay-per-MB serverless filter with no infrastructure setup.
Side effects
- Malformed predicate syntax returns a 400 error describing the parsing issue
- Payload too large may result in timeout or size rejection
- Invalid field references in predicate (fields not present in data) may return empty results or a schema mismatch error
- Insufficient USDC balance or x402 payment failure results in 402 Payment Required
- Empty dataset returns empty result set without error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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