# PubMed Key Papers Scorer

> PubMed Key Papers Scorer is a paid API for AI agents from pubmed.sekgen.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Retrieves and ranks key biomedical papers from PubMed scored by journal prestige, MeSH relevance, and clinical impact for literature review and drug discovery

## Facts

- Endpoint: GET https://pubmed.sekgen.xyz/api/v1/keypapers
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pubmed-sekgen-xyz-f87531ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D00m4x4YTzTOyB_A0cULp

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 pubmed-sekgen-xyz-f87531ac
```

Example prompt: Pull the top scored key papers on KRAS-mutant non-small cell lung cancer from PubMed, ranked by journal prestige and clinical impact, so I can build a literature review.

## When to prefer this

Use this endpoint when you need pre-scored, ranked biomedical literature rather than raw search results — especially for drug discovery pipelines, systematic literature reviews, or clinical evidence gathering where journal prestige and citation impact matter. Prefer over generic PubMed search when you need quality-ranked output rather than chronological or relevance-only ordering.

## Known failure modes

- No papers found for overly narrow or misspelled query terms
- Rate limiting or payment failure returning 402 status
- Timeout if PubMed upstream API is slow or unavailable
- Empty result set for very new or niche research topics with limited PubMed coverage

## How this service works

Scored key biomedical papers from PubMed with citation metrics — ranked by journal prestige, MeSH relevance, and clinical impact for literature review and drug discovery research

## Output

A ranked list of key biomedical papers from PubMed, each with scoring metadata including journal prestige score, MeSH relevance score, clinical impact score, citation counts, author information, publication year, and abstract — ordered to surface the most impactful literature for the queried topic.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "query": "artificial intelligence"
  }
 }
}
```

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pubmed-sekgen-xyz-f87531ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pubmed.sekgen.xyz](https://www.zero.xyz/host/pubmed.sekgen.xyz/llms.txt)