# Agent402 Research Pro

> Agent402 Research Pro is a paid API for AI agents from agent402.tools, paid per call via x402, $0.85/call, status unknown (last checked 2026-09-14).

Runs a deep, multi-source AI research synthesis on any question and returns a structured markdown or JSON report with cited sources

## Facts

- Endpoint: POST https://agent402.tools/v1/research/pro
- Price: $0.85/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-research-pro-edbf75c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u6s0u7ODTEQ3yNcbztJ1K

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 agent402-research-pro-edbf75c5 -d '<json body>'
```

Example prompt: Can you do a deep research report on the current state of AI agent payment protocols — focus on x402 and stablecoin rails — using sources from the past month, and give me the results as a markdown report?

## When to prefer this

Choose this endpoint when you need a multi-source, cited research synthesis rather than a single web lookup or document retrieval. It is best suited for open-ended research questions requiring cross-source analysis, competitive landscape summaries, or technical deep-dives where provenance and citation quality matter. Prefer it over general search endpoints when the user wants a finished, structured report rather than raw search results. The recency filter and focus array make it especially useful for time-bounded investigative tasks.

## Known failure modes

- Query exceeds 2000 character limit — request rejected
- Recency filter too narrow for topic — few or no sources found, thin report returned
- Ambiguous or very broad query — sub-questions may drift from intent
- Service unavailable or synthesis model timeout — no report returned
- Payment failure over x402 — call not executed, no result

## How this service works

The deeper research tier: more sub-questions, more grounded searches, wider reranked source set, and a premium (Claude Opus class) synthesis into a ~2,200-word cited report with structured findings. For questions worth a real dossier. USDC or card (Stripe). Not cached.

## Output

Returns a structured object containing: a full markdown or JSON research report with inline citations, an array of ranked sources with URLs, titles, and snippets, a list of sub-questions the engine decomposed, and metadata including the number of searches run, sources consulted, sources cited, and the synthesis model used (e.g. anthropic/claude-opus-5).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "focus": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Optional aspects to emphasize (<= 8)."
  },
  "query": {
   "type": "string",
   "description": "The research question to investigate (<= 2000 chars)."
  },
  "format": {
   "enum": [
    "markdown",
    "json"
   ],
   "type": "string",
   "description": "Response shape (default markdown report)."
  },
  "recency": {
   "enum": [
    "week",
    "month",
    "year",
    "any"
   ],
   "type": "string",
   "description": "Prefer sources from this window (default any)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "meta": {
   "tier": "research-pro",
   "searches_run": 3,
   "sources_cited": 12,
   "synthesis_model": "anthropic/claude-opus-5",
   "sources_consulted": 14
  },
  "report": "# Leading agentic-payment protocols (2026)\n\nThe field splits into stablecoin rails and card rails [1]…\n\n## Sources\n[1] … - https://…",
  "sources": [
   {
    "n": 1,
    "url": "https://…",
    "rank": 0.94,
    "title": "…",
    "snippet": "…"
   }
  ],
  "sub_questions": [
   "What stablecoin agent-payment protocols exist?",
   "…"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-research-pro-edbf75c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)