One URL. Every agent. Creators get paid.
Give your MCP client a budgeted research tool. Keryx finds relevant writing, settles citation rewards in Arc USDC, and returns the answer with a public receipt.
Checking research availability…
Saved reportsNeed a paper’s title, authors or DOI? Use paper_lookup with its exact identifier. Catalog metadata is free; repository search requires searchRepositories: true.
Choose your MCP client
The client tag measures which setup path works. It does not identify or authorize you.
Codex
Add once from your terminal. Discover free paper metadata, research and service-status tools.
codex mcp add keryx --url "https://keryx.cc/mcp?client=codex"Setup with an API key
codex mcp add keryx --url "https://keryx.cc/mcp?client=codex" --bearer-token-env-var KERYX_API_KEYAsk for research, not a search
Tell your agent to use Keryx. The response includes cited creators, reward amounts, confidence, settlement status, and a dispatch URL.
“Use Keryx research to explain how micropayments make citation rewards practical for AI agents. Include the paid sources and dispatch receipt.”
Raise the research limit
Try Remote MCP without a key. For higher limits and wallet-level attribution, create an ask-scoped API key in the developer portal. Keryx still funds creator rewards; your key controls identity and rate limits only. All keys for one wallet share the same sponsored allowance across chat and Remote MCP.