# GPT-5.5 x402 Seller Action Plan Tool

> GPT-5.5 x402 Seller Action Plan Tool is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.009/call, status down (last checked 2026-09-15).

Generates a prioritized x402 seller growth checklist and action plan using GPT-5.5 via a pay-per-request x402 USDC gateway

## Facts

- Endpoint: POST https://gpt55.558686.xyz/v1/tools/x402-seller-action-plan
- Price: $0.009/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpt-5-5-x402-seller-action-plan-tool-35156fc1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_20FKVEVWxzIvg5usVyqAV

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 gpt-5-5-x402-seller-action-plan-tool-35156fc1 -d '<json body>'
```

Example prompt: Give me a prioritized x402 seller action plan for my API service called 'DataSync Pro' — I want to focus on growing USDC revenue and improving my listing visibility on x402.direct.

## When to prefer this

Choose this endpoint when you need a GPT-5.5-generated, structured action plan specifically tailored for x402 marketplace sellers, and you are operating in an x402 pay-per-request environment. It is purpose-built for seller growth strategy rather than general-purpose chat completions, and is priced at $0.019 USDC per call via x402 exact payment.

## Known failure modes

- Payment not received — x402 exact USDC payment required before response is served
- Invalid or missing query/goal parameters — returns validation error
- Timeout if upstream GPT-5.5 inference exceeds 30 seconds
- Malformed request if required 'input' object or method fields are absent
- Service unavailability on third-party hosted domain

## How this service works

Low-price OpenAI-compatible GPT-5.5 chat completions and text tools over x402 USDC on Base: $0.0001 compact requests, $0.066667 true max-output requests, no subscription.

## Output

Returns a JSON object with ok status, tool name ('x402SellerActionPlan'), and a summary containing a prioritized growth checklist and recommended actions for x402 API sellers to improve their revenue and marketplace presence.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "x402SellerActionPlan",
  "summary": "Generate a prioritized x402 seller growth checklist using x402 USDC payment"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpt-5-5-x402-seller-action-plan-tool-35156fc1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt55.558686.xyz](https://www.zero.xyz/host/gpt55.558686.xyz/llms.txt)