research by fourzerotwo

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Journals and repositories with impact stats.

Search journals Free

Journals and repositories with impact stats.

cost: Free then $0.002 / call
MCP tool: scholarly__sources-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/sources-search

Param	Type	Description
search	string	Journal

# free: send a free key from https://fourzerotwo.si/free
curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/scholarly/sources-search?search=Nature"

# no key: returns 402 with the price, for x402 agents
curl -i "https://fourzerotwo.si/v1/scholarly/sources-search?search=Nature"

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__sources-search", "arguments": {"search":"Nature"}}

Search journals

Search journals Free

Use it from an AI agent (MCP)

More from Scholarly Works (OpenAlex)