# PubMed Single-Year Publication Count Snapshot

> PubMed Single-Year Publication Count Snapshot is a paid API for AI agents from pubmed.sekgen.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the biomedical publication count from PubMed for a specific search query within a single year

## Facts

- Endpoint: GET https://pubmed.sekgen.xyz/api/v1/snapshot
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pubmed-sekgen-xyz-94a29c01
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XItmAw1efRyG41PZgV_vJ

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-94a29c01
```

Example prompt: How many PubMed publications were there on GLP-1 receptor agonists in 2023? Just give me the single-year count for that search term.

## When to prefer this

Use this endpoint when you need a precise, single-year publication count for a specific biomedical or clinical search term — ideal for benchmarking research activity in one year, validating a hypothesis about research volume at a point in time, or as a lightweight data point before pulling full trend analytics. Prefer this over the multi-year trend endpoint when only one year's count is needed and cost efficiency matters.

## Known failure modes

- Invalid or empty search query returns zero or error response
- Year out of PubMed's indexed range may return zero results
- Overly broad queries may return very large counts with reduced precision
- Payment failure via x402 protocol prevents query execution
- Network timeout for complex or slow PubMed queries

## How this service works

Single-year biomedical publication count from PubMed for any medical, clinical, pharmaceutical, or scientific search query

## Output

Returns the total number of biomedical publications indexed in PubMed matching the search query for the specified year, providing a point-in-time count of research output volume.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "year": "2023",
   "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-94a29c01/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)