# GPT Research Endpoint

> GPT Research Endpoint is a paid API for AI agents from gpt.558686.xyz, paid per call via x402, $2/call, status unknown (last checked 2026-10-02).

Performs AI-powered research tasks given a natural language prompt, returning synthesized findings

## Facts

- Endpoint: GET https://gpt.558686.xyz/v1/research?utm_source=zero.xyz
- Price: $2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpt-research-endpoint-e31382fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_x-ZSzwz-1kUNHQgdMSG-U

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-research-endpoint-e31382fd
```

Example prompt: Can you research the current state of fusion energy commercialization — who the major players are, recent milestones, and what the timeline to viability looks like?

## When to prefer this

Choose this endpoint when you need quick AI-synthesized research on a topic without requiring live web access or citations. Best suited for background research, concept explanations, and landscape summaries where up-to-date sourcing is not critical. Prefer alternatives if you need real-time data, verified citations, or structured database lookups.

## Known failure modes

- Vague or overly broad prompts may return generic summaries rather than targeted research
- Topics requiring real-time or post-training-cutoff data may return outdated information
- Very niche or obscure topics may yield limited or low-confidence results
- Missing or malformed 'input' field returns a 400-level error
- Payment failure via x402 results in a 402 Payment Required response

## Output

Returns synthesized research findings as text, covering key facts, analysis, and a structured summary relevant to the input prompt. The exact format depends on the task but typically includes an overview, key points, and relevant details drawn from AI knowledge.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "depth": {
   "enum": [
    "standard",
    "deep"
   ],
   "type": "string",
   "description": "Report depth (default \"standard\")"
  },
  "topic": {
   "type": "string",
   "description": "Research topic (required)"
  },
  "language": {
   "type": "string",
   "description": "Report language (default \"en\")"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpt-research-endpoint-e31382fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt.558686.xyz](https://www.zero.xyz/host/gpt.558686.xyz/llms.txt)