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Natural Language to SQL Translator (Schema-Aware, Read-Only Flagged)
x402
Natural Language to SQL Translator (Schema-Aware, Read-Only Flagged) is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Converts a natural language question into a SQL query tailored to a user-supplied schema, supporting Postgres, MySQL, SQLite, and BigQuery dialects, with read-only safety flagging.
Price / call$0.01
Success—
StatusUnknown
How this service works
Natural language to SQL for YOUR schema (Postgres, MySQL, SQLite, BigQuery), read-only flagged — Genesis402 / UnyKorn Operator Network
Output
Returns a generated SQL query string matched to the provided schema and dialect, phrased to answer the natural language question. The response is flagged as read-only safe, meaning the generated SQL is a SELECT statement or equivalent that will not mutate data.
Example use cases
Self-serve analytics for non-technical users
“I have a MySQL database with these tables — CREATE TABLE sales (...), CREATE TABLE products (...) — can you write a SQL query that answers: 'What were the top 10 best-selling products by revenue last quarter?'”
AI chatbot over a BigQuery data warehouse
“My BigQuery warehouse has these schemas: CREATE TABLE events (...), CREATE TABLE users (...). Translate this question into valid BigQuery SQL: 'How many unique users triggered a purchase event in the last 7 days?'”
SQLite-backed app question answering
“Here are my SQLite table definitions: CREATE TABLE tasks (...), CREATE TABLE projects (...). Write a SQL query that answers: 'Which projects have overdue tasks assigned to more than two people?'”
Technical details
Endpoint
POSThttps://twin.unykorn.org/ai/text-to-sql?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need schema-aware, dialect-specific SQL generation grounded in your actual database structure, rather than generic SQL snippets. Prefer it over generic LLM prompting when you need read-only safety guarantees, support for a specific SQL dialect (Postgres, MySQL, SQLite, BigQuery), and a structured API contract with predictable pricing. Ideal for building natural language interfaces over existing databases in agentic pipelines.
Side effects
- Schema too large — exceeds the 12,000-character limit for CREATE TABLE statements
- Question too long — exceeds the 1,000-character question limit
- Ambiguous question that cannot be mapped to schema columns without clarification
- Unsupported dialect value provided
- Schema references tables or columns not defined in the provided CREATE TABLE statements
- Payment not included or insufficient (x402 payment required at $0.01 USDC)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "text-to-sql",
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.01,
"receipt_id": "g402-<16hex>"
},
"sources": [
{
"ok": true,
"name": "<source>"
}
],
"limitations": "<text>",
"generated_at": "<iso time>",
"evidence_hash": "sha256:<64hex>"
}
}Tags
x402
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