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Linkup

Web search API with source-grounded answers for agents

Linkup is a web search API for agents and AI applications that returns sourced results or synthesized answers. It supports standard and deep search modes, can retrieve page content, and offers JavaScript and Python SDKs alongside a command-line client for research, retrieval, and grounding workflows.

Best for agent capabilities

Useful in agent tasks

Overview

Authapi key
PricingFree tier available · $0.005/request
SDKstypescript, python
OpenAPIYes
MCP SupportYes

When to use Linkup

Linkup is listed for Search, Data workflows. Linkup is a web search API for agents and AI applications that returns sourced results or synthesized answers. It supports standard and deep search modes, can retrieve page content, and offers JavaScript and Python SDKs alongside a command-line client for research, retrieval, and grounding workflows. Consider it when an agent needs this capability through a documented service boundary instead of custom infrastructure maintained inside the application.

In 4agent's task model, the product maps to web search, web extraction, workflow automation. That makes it a candidate for workflows that research the web, manage memory and knowledge, communicate with users, automate business workflows.

Integration checklist

  • Access: confirm the api key authentication flow, credential scope, rotation process, and whether calls can be attributed to a user or service identity.
  • Client support: official or documented clients are listed for typescript, python.
  • Automation: OpenAPI is listed as available, MCP is listed as available, and CLI support is listed as available. Confirm each requirement in the provider's current documentation.
  • Operations: test rate limits, timeouts, retry safety, error payloads, logs, data retention, and the current free-tier and paid pricing model with production-like volume.

Sources and verification

Use these primary sources to verify current behavior before making an implementation or purchasing decision. Product capabilities, limits, and prices can change after a 4agent listing is reviewed.