---
title: "SQLGuard Instant Cert $0.05 — TASTE ONLY (not wealth primary)"
method: POST
path: "/v1/cert"
tags: ["Instant Cert", "first taste", "one-shot", "legacy-taste", "x402"]
---

# SQLGuard Instant Cert $0.05 — TASTE ONLY (not wealth primary)

`POST /v1/cert`

## Request

- Base URL: `https://sqlguard.io`
- URL: `https://sqlguard.io/v1/cert`
- Auth: none required

First taste only — OFF TABLE as wealth/primary: Exact USDC $0.05 for ONE mutating SQL Ed25519 PASS. Wealth primary: Pilot Challenge unlock POST /v1/challenge/unlock ($100.00, amount 100000000) or Gateway invoice $299/mo. Session/Workday are LEGACY non-wealth. Keywords: Instant Cert, one-shot, first taste — not primary authorize.

## Headers

- `X-SQLGuard-Agent` string, required

## Request body

- object
  - `schema_ddl` string, required: Current Postgres schema snapshot (CREATE TABLE …) for Instant Cert sandbox authorize
  - `sql` string, required: Exact mutating SQL (INSERT/UPDATE/DELETE/DDL) to authorize with Instant Execution Certificate
  - `agent_id` string, required: Stable agent or wallet id

## Response `200`

PASS Instant Execution Certificate + signature after Exact settle

## Other responses

- `402`: Payment required — SQLGuard Instant Cert Exact USDC $0.05 on Base
- `422`: FAIL Execution Certificate (payment still settled — do not execute)

---

[API](https://skmtc.dev/sqlguard/apis/sqlguard-permission-before-production-writes.md) · [All operations](https://skmtc.dev/sqlguard/apis/sqlguard-permission-before-production-writes/llms.txt) · [OpenAPI document](https://skmtc.dev/sqlguard/apis/sqlguard-permission-before-production-writes/revisions/d164204b4aea?raw)