# CitePulse Literature Brief

> CitePulse Literature Brief is a paid API for AI agents from citepulse.theaslangroupllc.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).

Synthesizes the current state of research on a specific question, grounded in top OpenAlex and Semantic Scholar results with full DOI citations

## Facts

- Endpoint: GET https://citepulse.theaslangroupllc.com/api/literature-brief
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/citepulse-literature-brief-f800f493
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_odfKNSurSk8nRSnIxLXnK

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 citepulse-literature-brief-f800f493
```

Example prompt: Give me a citation-backed state-of-research brief on the question: 'What are the effects of sleep deprivation on cognitive performance?' — I need a synthesis grounded in top academic papers with full DOIs I can reference.

## When to prefer this

Choose this endpoint when an AI agent needs a rapid, citation-grounded synthesis of academic literature on a specific research question — especially when DOIs and source attribution are required. Prefer this over general web search when academic credibility and traceability matter. Not suited for full systematic reviews, meta-analyses, or when exhaustive literature coverage is required.

## Known failure modes

- Overly broad or ambiguous research question may yield low-relevance results
- Topics with sparse academic coverage in OpenAlex/Semantic Scholar may return limited citations
- Payment failure via x402 protocol returns 402 before synthesis is attempted
- Rate limiting or upstream API unavailability from OpenAlex or Semantic Scholar may cause errors

## How this service works

State-of-research synthesis for a specific question — grounded in top OpenAlex + Semantic Scholar results with full citations (DOIs). Built for AI research agents that need a citation-backed starting point fast; explicitly not a substitute for a full systematic review.

## Output

A synthesized literature brief answering the research question, grounded in top results from OpenAlex and Semantic Scholar, including full citations with DOIs. The response provides a citation-backed starting point covering the current state of research, explicitly scoped as a rapid synthesis rather than a full systematic review.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lang": {
       "type": "string",
       "description": "e.g. en, es, fr, de, ja, zh, ko, pt, ar (default: en)"
      },
      "question": {
       "type": "string",
       "description": "The research question to synthesize, e.g. \"does intermittent fasting improve insulin sensitivity in non-diabetic adults?\""
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "question": "does intermittent fasting improve insulin sensitivity in non-diabetic adults?",
  "synthesis": "Multiple randomized trials report modest improvements in insulin sensitivity...",
  "key_citations": [
   {
    "doi": "10.xxxx/yyyy",
    "title": "string",
    "citation": "Smith et al., 2021",
    "relevance": "string"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/citepulse-literature-brief-f800f493/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from citepulse.theaslangroupllc.com](https://www.zero.xyz/host/citepulse.theaslangroupllc.com/llms.txt)