Vaers

live Health

VAERS (Vaccine Adverse Event Reporting System) — report counts by vaccine,

3 tools
0ms auth
free tier 50 calls/day

Tools

vaers_events_by_vaccine

VAERS report counts and severity breakdown (died / life-threatening / hospitalized / disabled / ER visit) by vaccine, for the requested year range. Pass `vaccine` as the VAERS vax_type code (e.g. "COV

No parameters required.

▶ Try it
vaers_events_by_symptom

VAERS report counts by symptom (MedDRA preferred term), optionally filtered to one vaccine and/or year range. Pass `symptom` as a substring (e.g. "headache", "anaphyla", "myocarditis") to count how of

No parameters required.

▶ Try it
vaers_coverage

What this VAERS pack currently holds: total unique reports, the year range covered, how many distinct vaccine types and manufacturers, and when the seed was last (re)loaded — refresh is a manual re-do

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/vaers/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/vaers/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"vaers_events_by_vaccine","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("vaers_events_by_vaccine", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("vaers (vaccine adverse event reporting system) — report counts by vaccine,");