Web Search

Web search is not a separate endpoint. Instead, add Anthropic's web_search server tool to a regular POST /v1/messages request. The model runs searches server-side and cites the results in its response. Claude models only.

Example

curl https://api.tokapi.ai/v1/messages \
  -H "Authorization: Bearer sk-lazytech-..." \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 1024,
    "messages": [{ "role": "user", "content": "What is the latest Node.js LTS version?" }],
    "tools": [{ "type": "web_search_20250305", "name": "web_search", "max_uses": 5 }]
  }'

Notes

• Each search counts as server tool use and is metered like other usage.
• Only Claude models support the web_search server tool.
• The response includes a server_tool_use entry in its usage object so you can see how many searches were performed.

See Usage API to track your consumption.