Search topics Free
Research topics and fields.
- cost
- Free then $0.002 / call
- MCP tool
- scholarly__topics-search
- method
- GET
Free up to 50 calls a day over MCP (500 with a free key), then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/scholarly/topics-search
| Param | Type | Description |
|---|---|---|
| search | string | Topic |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/scholarly/topics-search?search=quantum%20computing" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/scholarly/topics-search?search=quantum%20computing"
by fourzerotwo
Report this endpoint
Use it from an AI agent (MCP)
Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.
{
"mcpServers": {
"fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
}
}
# the call the agent makes
call_api {"tool": "scholarly__topics-search", "arguments": {"search":"quantum computing"}}
More from Scholarly Works (OpenAlex)
- Search papers — Full-text search of scholarly works, with citations, authors and open-access links.
- Paper by id or DOI — One work by OpenAlex id (W…) or "doi:10.…".
- Search authors — Researchers by name with h-index, works and citation counts.
- Author — One researcher by OpenAlex id or ORCID.
- Search institutions — Universities and research institutions with output stats.
- Search journals — Journals and repositories with impact stats.
- Autocomplete works — Fast title autocomplete across works.
- Papers citing a paper — Works that cite a given OpenAlex work id.
Source: OpenAlex (openalex.org), data CC0.