# StableFeedback Namespace Register

> StableFeedback Namespace Register is a paid API for AI agents from stablefeedback.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-12).

Registers a new namespace for pay-per-use feedback collection without requiring API keys or accounts.

## Facts

- Endpoint: POST https://stablefeedback.dev/api/namespace/register?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablefeedback-namespace-register-e34b898b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uWjJZm9j4UMi-q5gYCYUm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stablefeedback-namespace-register-e34b898b -d '<json body>'
```

Example prompt: Register a new StableFeedback namespace called 'morning-bloom-app' so I can start collecting pay-per-use product feedback without needing to create an account.

## When to prefer this

Choose this endpoint when you need to quickly bootstrap a feedback collection pipeline for a product without signing up for an account or managing API keys, and you are comfortable with pay-per-use USDC micropayment billing via x402.

## Known failure modes

- Namespace name already taken — returns conflict error
- Invalid namespace format — returns validation error
- Payment of $1 USDC fails or is insufficient — returns payment required error
- Malformed request body — returns 400 bad request
- Network timeout during registration

## How this service works

Pay-per-use feedback collection for any product. No API keys, no accounts.

## Output

Returns a confirmation of the registered namespace, including the namespace identifier and any configuration details needed to start submitting feedback under that namespace.

## Example request

```json
{
 "type": "feedback",
 "title": "Test Feedback Registration",
 "metadata": {
  "test_run": "qa_validation",
  "timestamp": "2024-01-01T00:00:00Z"
 },
 "severity": "low",
 "namespace": "qa-test-feedback-ns",
 "description": "This is a test input for validating the StableFeedback namespace registration API endpoint. It demonstrates a minimal valid request with required fields only."
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "namespace"
     ],
     "properties": {
      "namespace": {
       "type": "string",
       "pattern": "^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$",
       "maxLength": 30,
       "minLength": 3
      },
      "webhookUrl": {
       "type": "string",
       "format": "uri"
      },
      "description": {
       "type": "string",
       "maxLength": 500
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablefeedback-namespace-register-e34b898b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablefeedback.dev](https://www.zero.xyz/host/stablefeedback.dev/llms.txt)