# WebLens Deep Research API

> WebLens Deep Research API is a paid API for AI agents from api.weblens.dev, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-03, last successful call 2026-08-13).

Performs deep AI-driven web research on a query, returning a synthesized answer with citations, key findings, sub-questions, and identified gaps

## Facts

- Endpoint: POST https://api.weblens.dev/research/deep?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Last successful call: 2026-08-13
- Success rate: 100% of calls made through Zero
- Rating: 2.7 / 5 from 1 review
- Activations on Zero: 2
- Tags: x402
- Canonical page: https://www.zero.xyz/c/weblens-deep-research-api-c18cc1f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SZZeGIYKgAsPwTVZqaBYf

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 weblens-deep-research-api-c18cc1f1 -d '<json body>'
```

Example prompt: Can you do a deep research dive on how AI agents are using micropayments in 2026 — I want a synthesized answer with citations, key findings, and any gaps in what the sources cover?

## When to prefer this

Choose this endpoint when you need a synthesized, multi-source research answer with citations rather than raw page content. It is ideal for trend analysis, competitive research, or any query requiring aggregation across many web sources into a coherent narrative. Prefer it over single-page scraping endpoints when the question cannot be answered by one URL and requires cross-source synthesis and gap identification. The $0.20 price point is suited for high-value research tasks where quality of synthesis matters more than raw cost.

## Known failure modes

- Query too vague or ambiguous — may return low-confidence answer with many gaps
- Insufficient web coverage on niche topics — sources fetched may be zero or very few
- Payment failure via x402 protocol — HTTP 402 returned if USDC payment is not completed
- Rate limiting or timeout on deep crawl — long-running research may fail on complex queries
- Cached result returned when fresh data needed — caller should be aware of cache discount trade-off

## How this service works

# WebLens - Web Intelligence API, pay per call

Scrape, crawl, map and extract the web. No account, no API key, no monthly
minimum — you pay for the calls you make and nothing else.

## Pricing
Page fetching starts at **$0.002**, whole-site crawling at
**$0.0015/page**, and sitemap discovery at **$0.004**.
Comparable services bill $0.007-0.008 per request, or reach a lower per-page
rate only on a $99/month commitment. WebLens has no commitment to reach.

## Payment Protocol
All paid endpoints use the [x402 protocol](https://x402.org) for HTTP-native
micropayments (USDC on Base).

## Cache Discount
Cached responses are **70% cheaper** than fresh fetches.

## Output

A JSON object containing: a synthesized natural-language answer to the query, an array of citation objects (each with URL, title, index, and sub-question), an array of key findings, an array of sub-questions explored, an array of identified gaps in the sources, the number of sources fetched, the depth setting used, a unique requestId, and a timestamp of when research was conducted.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "depth": {
   "enum": [
    "standard",
    "deep"
   ],
   "type": "string",
   "description": "standard = 3 sub-questions / 8 sources; deep = 5 / 12 (default: standard)"
  },
  "query": {
   "type": "string",
   "description": "The research question"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "gaps": [
   "Sources did not cover settlement failure rates"
  ],
  "depth": "standard",
  "query": "How are AI agents using micropayments in 2026?",
  "answer": "Agent micropayments consolidated around the x402 protocol in 2026 [1]. Transaction counts recovered sharply while average payment sizes fell [2][3].",
  "citations": [
   {
    "url": "https://x402.org",
    "index": 1,
    "title": "x402 Protocol",
    "subQuestion": "x402 protocol adoption 2026"
   }
  ],
  "requestId": "req_deepresearch123",
  "keyFindings": [
   "Transaction volume is dominated by a small number of gateways",
   "Median per-call price sits near $0.01"
  ],
  "researchedAt": "2026-07-31T12:00:00.000Z",
  "subQuestions": [
   "x402 protocol adoption 2026",
   "AI agent payment volume statistics",
   "micropayment API pricing for agents"
  ],
  "sourcesFetched": 8
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/weblens-deep-research-api-c18cc1f1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.weblens.dev](https://www.zero.xyz/host/api.weblens.dev/llms.txt)