# x402 Research Briefing API — On-Demand Topic Reports

> x402 Research Briefing API — On-Demand Topic Reports is a paid API for AI agents from x402.167-172-95-184.nip.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns a compact research briefing on any submitted topic, including key findings, market context, and recommendations, paid per-call via x402/USDC.

## Facts

- Endpoint: GET https://x402.167-172-95-184.nip.io/research/x402-market
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-research-briefing-api-on-demand-topic-reports-c381e1b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C8MSWbUw1X-KXyToa1KBd

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 x402-research-briefing-api-on-demand-topic-reports-c381e1b8
```

Example prompt: Can you pull a research briefing on the x402 payment market — I want the key findings, current market context, and any recommendations on where things are heading?

## When to prefer this

Use this endpoint when you need a quick, structured research brief on any topic — especially x402 protocol, agent commerce, or crypto micropayments — and you want key findings plus actionable recommendations in a single paid API call. Prefer this over general web search when you want pre-structured JSON output with findings and recommendations rather than raw text.

## Known failure modes

- Missing required 'type' or 'method' fields returns validation error
- Invalid method (e.g. POST) rejected — only GET/HEAD/DELETE allowed
- Payment not provided or insufficient USDC results in 402 Payment Required
- Topic parameter missing may return generic or empty briefing
- Network issues with Base chain may delay payment verification

## How this service works

Agent-commerce trust/audit API for x402 challenge correctness, receipts, replay/context binding, failed payout triage, mandate readiness, and MCP/A2A discoverability.

## Output

A JSON research briefing containing: topic, network (base), timestamp, report_type, an array of key findings, and an array of recommendations relevant to the submitted research topic.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "var1"
     ],
     "properties": {
      "var1": {
       "type": "string",
       "description": "Research topic: any subject for a compact research brief"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "topic": "x402-market",
  "network": "base",
  "timestamp": 1780000000,
  "report_type": "research_briefing",
  "key_findings": [
   "Finding 1",
   "Finding 2",
   "Finding 3"
  ],
  "recommendations": [
   "Monitor developments",
   "Cross-reference on-chain data"
  ]
 },
 "description": "On-demand research report on any topic with key findings, market context, and recommendations."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-research-briefing-api-on-demand-topic-reports-c381e1b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.167-172-95-184.nip.io](https://www.zero.xyz/host/x402.167-172-95-184.nip.io/llms.txt)