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100
MCP live MCP 2025-11-25 streamable-http

io.github.tang-vu/keryx

io.github.tang-vu/keryx

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

Uptime
100.0%
5 direct probes · 30d
Response
1421ms
last probe
Tools
4
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://keryx.cc/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
4 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
4 items in total; 3 or more earns these points.
pass Describes itself 10/10
96 characters; more than 30 earns these points.

Tools · 4

research

Research a question under a USDC creator-payment budget. Keryx selects sources, pays access tolls and weighted citation rewards on the configured Arc network, then returns qualified source excerpts an…

keryx_status

Describe this MCP surface, its payment behavior, and the active caller tier.

research_monthly

Read the four-request, 30-day Research Monthly quote and handoff. The current quote identifies its payment network. Never buys or redeems a plan.

keryx_operator_status

Observe public prepaid research operations, queue and hold/review rationale. No spending or execution authority; exact books and customer jobs stay private.

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "io.github.tang-vu/keryx": {
      "url": "https://keryx.cc/mcp",
      "transport": "streamable-http"
    }
  }
}