valyu_research_papers_search $0.0625 per call

Search academic papers. Search arXiv, PubMed and subscribed preprint sources. (Valyu · Academic literature)

For AI agents: call valyu_research_papers_search
POST https://toll402.dev/v1/p/valyu.research.papers.search
{
 "query": "quantum error correction research",
 "max_num_results": 1,
 "search_type": "proprietary",
 "max_price": 5,
 "response_length": "short",
 "included_sources": [
  "valyu/valyu-arxiv",
  "valyu/valyu-pubmed",
  "valyu/valyu-medrxiv",
  "valyu/valyu-biorxiv",
  "valyu/valyu-chemrxiv"
 ]
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server: npx -y toll402-mcp · remote https://toll402.dev/mcp.

Input schema

{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "examples": [
    "quantum error correction research"
   ]
  },
  "max_num_results": {
   "type": "integer",
   "examples": [
    1
   ]
  },
  "search_type": {
   "type": "string",
   "enum": [
    "proprietary"
   ]
  },
  "max_price": {
   "type": "number",
   "enum": [
    5
   ]
  },
  "response_length": {
   "type": "string",
   "enum": [
    "short"
   ]
  },
  "included_sources": {
   "type": "string",
   "enum": [
    "valyu/valyu-arxiv",
    "valyu/valyu-pubmed",
    "valyu/valyu-medrxiv",
    "valyu/valyu-biorxiv",
    "valyu/valyu-chemrxiv"
   ],
   "examples": [
    [
     "valyu/valyu-arxiv",
     "valyu/valyu-pubmed",
     "valyu/valyu-medrxiv",
     "valyu/valyu-biorxiv",
     "valyu/valyu-chemrxiv"
    ]
   ]
  }
 },
 "additionalProperties": true,
 "required": [
  "query",
  "max_num_results",
  "search_type",
  "max_price",
  "response_length",
  "included_sources"
 ],
 "description": "The selected Valyu sources are fixed for shared-key calls; use a Valyu own tool for arbitrary source mixes."
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

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