# SuperResearch Comparison Matrix

> SuperResearch Comparison Matrix is a paid API for AI agents from superresearch.supercapital.fun, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-22).

Autonomously researches and compares multiple options against user-defined criteria, producing a structured comparison matrix with sourced findings.

## Facts

- Endpoint: POST https://superresearch.supercapital.fun/comparison-matrix?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/superresearch-comparison-matrix-e9aab476
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hleur9vlhLXh_CBPhn-Bz

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 superresearch-comparison-matrix-e9aab476 -d '<json body>'
```

Example prompt: Can you compare PostgreSQL, MySQL, and SQLite for my use case of building a read-heavy analytics app on a small budget? I care most about performance, cost, and ease of setup.

## When to prefer this

Use this endpoint when a user needs to make a decision between multiple named options and wants sourced, autonomous research rather than a static knowledge answer. It is ideal when the criteria are user-specific (e.g. budget, team size, use case) and when current, retrieved information matters more than cached LLM knowledge. Prefer this over generic LLM queries when freshness, citation, and structured side-by-side output are important.

## Known failure modes

- Input too vague or missing criteria — returns unhelpful or generic comparison
- Options list too long or complex for a single call — output may be truncated or shallow
- Sources unavailable or paywalled — comparison may lack depth on certain options
- Payment failure on the x402 protocol — call rejected before research begins
- Ambiguous option names lead to researching wrong products or services

## How this service works

Autonomous research. Finds the sources, reads them, and writes up what matters.

## Output

Returns a jobId, a written comparison matrix or analysis output synthesized from real sources, and a payment receipt with transaction hash, amount paid, and network. The output field contains the structured comparison narrative covering each option against the specified criteria.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "maxLength": 8000,
   "minLength": 1,
   "description": "List the options and your criteria."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "jobId": "j_…",
  "output": "…",
  "receipt": {
   "tx": "0x…",
   "amount": "100000",
   "network": "base"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superresearch-comparison-matrix-e9aab476/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from superresearch.supercapital.fun](https://www.zero.xyz/host/superresearch.supercapital.fun/llms.txt)