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POST/api/v1/guardrails

Runtime guardrail check

Checks `text` (1-2,000,000 chars, required) against the platform's default firewall rules and returns { action, reasons, latencyMs }, where action is allow | block | flag — block when any critical/high reason fires, flag when only lower-severity reasons fire. Pass projectId to additionally apply that project's enabled guardrail_rules rows (up to 200): they are UNIONed with the platform defaults, custom rules last and deduped by id, so a deployed custom rule can never silently switch off injection/PII/secret/jailbreak detection. Non-allow decisions are recorded to guardrail_logs. requiredPermission gateway:create.

Authentication

Send Authorization: Bearer YOUR_API_KEY on every request. Generate API keys at /dashboard/settings/api-keys.

Request body required

Example

{
  "text": "string",
  "projectId": "string"
}
Schema
{
  "application/json": {
    "schema": {
      "type": "object",
      "properties": {
        "text": {
          "type": "string",
          "minLength": 1,
          "maxLength": 2000000
        },
        "projectId": {
          "type": "string",
          "maxLength": 200
        }
      },
      "required": [
        "text"
      ],
      "additionalProperties": {}
    }
  }
}

Response

All status codes

200Guardrail check result
401Unauthorized — no valid credential was presented (AUTH_REQUIRED).
403Forbidden — the credential is valid but lacks the API-key scope, member role, or plan entitlement this operation requires.
429Too Many Requests — the per-key or per-organization rate limit was exceeded. Honour the Retry-After header.
500Internal Server Error — an unhandled error was converted to the standard error envelope (INTERNAL_ERROR).

Code samples

cURL

curl -X POST \
  https://evalguard.ai/api/v1/guardrails \
  -H "Authorization: Bearer $EVALGUARD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "text": "string", "projectId": "string" }'

TypeScript

// The TypeScript SDK (@evalguard/sdk) exposes TYPED methods — runEval,
// getEval, runSecurityScan, checkFirewall, … — not a generic request().
// For an arbitrary endpoint, call it directly:

const res = await fetch("https://evalguard.ai/api/v1/guardrails", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.EVALGUARD_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "text": "string",
    "projectId": "string"
  }),
});
console.log(res.status, await res.json());

Python

# The Python SDK (pip install evalguardai) exposes TYPED methods on
# EvalGuardClient — run_eval, get_eval, … — not a generic request().
# For an arbitrary endpoint, call it directly:

import os
import requests

headers = {"Authorization": f"Bearer {os.environ['EVALGUARD_API_KEY']}"}
headers["Content-Type"] = "application/json"

response = requests.request(
    "POST",
    "https://evalguard.ai/api/v1/guardrails",
    headers=headers,
    json={
    "text": "string",
    "projectId": "string"
},
)
print(response.status_code, response.json())

Go

package main

import (
	"context"
	"fmt"
	"net/http"
	"os"
	"strings"
)

func main() {
	body := strings.NewReader(`{"text":"string","projectId":"string"}`)
	req, _ := http.NewRequestWithContext(context.Background(), "POST", "https://evalguard.ai/api/v1/guardrails", body)
	req.Header.Set("Authorization", "Bearer "+os.Getenv("EVALGUARD_API_KEY"))
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil { panic(err) }
	defer resp.Body.Close()
	fmt.Println(resp.Status)
}

Errors

401403429500

Other Guardrails endpoints