# OnchainExpat x402 Feedback Tool Request

> OnchainExpat x402 Feedback Tool Request is a paid API for AI agents from x402.onchainexpat.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Submit feedback or tool-related requests to the OnchainExpat x402 API platform via pay-per-request protocol

## Facts

- Endpoint: POST https://x402.onchainexpat.com/api/x402-feedback/tool-request
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/onchainexpat-x402-feedback-tool-request-35eeaf72
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9xGXVc7NqxxZd-Cx2z011

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 onchainexpat-x402-feedback-tool-request-35eeaf72 -d '<json body>'
```

Example prompt: Submit feedback to OnchainExpat x402 tools saying the weather API response was very helpful and accurate, and request that they add a 5-day forecast feature.

## When to prefer this

Use this endpoint when you need to programmatically submit feedback or tool requests to the OnchainExpat x402 platform and are already operating within the x402 pay-per-request payment flow using USDC.

## Known failure modes

- Payment not included or insufficient USDC — returns 402 Payment Required
- Malformed request body — returns 400 Bad Request
- Platform unavailable — returns 503 or timeout
- Invalid x402 payment header — payment rejected by facilitator

## How this service works

Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol

## Output

A JSON response confirming the feedback or tool request was received by the OnchainExpat x402 platform, with any relevant status or confirmation metadata.

## Example request

```json
{
 "title": "Request: Add Pokemon Evolution Chain Feature",
 "pokemon": "charizard",
 "description": "The current Pokemon API tool is helpful for basic Pokemon lookups, but it would be significantly more useful if it included evolution chain information. For example, when querying Charizard, the response should include its evolution path (Charmander -> Charmeleon -> Charizard) along with evolution methods and level requirements. This feature would make the tool more comprehensive for Pokemon research and team building purposes."
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "title",
  "description"
 ],
 "properties": {
  "title": {
   "type": "string",
   "description": "Short request summary, max 200 chars. Must differ from description. Example: 'Add DNS lookup tool'"
  },
  "category": {
   "type": "string",
   "description": "api, tools, crypto, proxy, docs, or other"
  },
  "description": {
   "type": "string",
   "description": "Specific description of the tool/feature and use case, max 2000 chars. Example: 'A DNS endpoint returning A, AAAA, MX, TXT records for a domain'. Placeholder text is rejected."
  },
  "endpoint_affected": {
   "type": "string",
   "description": "Related existing endpoint"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "type": "integer"
  },
  "title": {
   "type": "string"
  },
  "status": {
   "type": "string"
  },
  "message": {
   "type": "string"
  },
  "feedback_type": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/onchainexpat-x402-feedback-tool-request-35eeaf72/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.onchainexpat.com](https://www.zero.xyz/host/x402.onchainexpat.com/llms.txt)