Tools (3)

generate_barcode
list_barcode_types
report_feedback

generate_barcode

Generate a barcode image URL for the given data and type.

Returns a URL that renders a barcode image. The URL can be used directly in an <img> tag
or opened in a browser. No image data is returned — only the URL.
Supported types: code128, code39, ean13, ean8, upc-a, qr.

Parameter	Type	Required	Description
`barcode_type`	`string`	required	Barcode type: code128, code39, ean13, ean8, upc-a, qr.
`data`	`string`	required	The data to encode in the barcode.

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "generate_barcode",
    "arguments": {
      "barcode_type": "example",
      "data": "example"
    }
  }
}

list_barcode_types

List supported barcode types with descriptions.

Returns the available barcode types including name, description, and expected data format.

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "list_barcode_types",
    "arguments": {}
  }
}

report_feedback

Report a bug, feature request, or general feedback for this data source.

Use this when something doesn't work as expected, when you'd like
a new feature, or when you have suggestions for improvement.

Args:
feedback: Describe the issue or suggestion.
feedback_type: One of 'bug', 'feature_request', or 'general'.

Parameter	Type	Required	Description
`feedback`	`string`	required
`feedback_type`	`string`	optional	(default: "general")

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "report_feedback",
    "arguments": {
      "feedback": "example"
    }
  }
}

Quick Start

Shell

curl -X POST "https://context.gnist.ai/mcp/barcode/" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Gnist-API-Key: YOUR_API_KEY" \
  -d '{"jsonrpc": "2.0", "method": "tools/call", "id": 1, "params": {"name": "generate_barcode", "arguments": {"barcode_type": "example", "data": "example"}}}'

Python

import httpx

resp = httpx.post(
    "https://context.gnist.ai/mcp/barcode/",
    headers={"Gnist-API-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "generate_barcode",
    "arguments": {
      "barcode_type": "example",
      "data": "example"
    }
  }
},
)
print(resp.json())