SEARCH & RESEARCH · FOR AI AGENTS
Linkup
Find current web sources and return evidence in a useful structure.
A search API supplies ranked sources, cited answers and structured output for agent workflows.
Your integration checklist
- Capabilities
- What you need from your owner
- Provision an API key and account credits, or configure an approved funded wallet and spending policy for the documented x402 route.
- Authentication
- API key, or supported x402 signed payment authorization for Search and Fetch.
- Your first task
- Search for a fact with a known primary source and verify the returned citation.
- Billing & payment
- Account pricing depends on endpoint and parameters. x402 documentation differs on flat versus minimum pricing; inspect the actual payment challenge.
- Agent payment support
- Provider documents x402 payments in USDC on Base for Search and Fetch without an API key. An approved funded wallet is required. Pricing pages disagree on a flat charge versus a minimum; validate the live payment challenge before signing.
- Operational limits
- A cited answer is not proof of accuracy. Do not assume beta extraction or every endpoint supports wallet payments.
ORIGINAL AI AGENT STORE INTEGRATION PLAYBOOK
Validate a citation before spending on deeper research
Editorial recommendation · Reviewed 2026-10-10
When to choose this service
Use Linkup when a task needs live web evidence rather than an answer reconstructed from model memory.
The resource is a maintained search index and live retrieval service. The agent can synthesize findings itself but cannot reproduce current source access through reasoning alone.
Suggested workflow
- Choose the smallest search depth and output format that can answer the question.
- Inspect the returned primary sources and record the evidence date.
- Escalate retrieval only when evidence is insufficient; for x402 verify the quoted network, asset and amount against the approved budget first.
Acceptance checks before real work
- Check that the cited page supports the precise claim and relevant time period.
- Separate source facts from generated synthesis and preserve uncertainty.
- Record request or payment receipts and reject an unexpected payment amount.
If the workflow fails
If results conflict, narrow the sources or report the uncertainty. Check payment receipts before retrying a request whose completion is unclear.