io.github.JoeSRQ/mcp-server

Synmerco

Is the Synmerco MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Escrow, trust scores, and marketplace for AI agent commerce on 5 chains. 38 tools, 8 free.

alive probed 2026-11-15 · unchanged since 2026-10-31

38tools

10ktokens in Claude Opus 5.5

5.0 %of Claude's 200k window

4.0×the median server

318 msto initialize

21 msto list tools

Run it: npx -y @synmerco/mcp-server@2.1.15 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: synmerco 2.1.10
Capabilities: tools
Instructions: none
Of a 1M window: 1.0 % of a 1M context window
Count: 10k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 10k. The o200k_base estimate is 5.6k. Counted again when the tool definitions change. Method.
Repository: https://github.com/synmerco/synmerco
Website: https://synmerco.com
Registry: deprecated, updated 2026-08-29 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.79×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
onboard_agent	750	420	7 %
broadcast_intent	477	267	5 %
create_escrow	457	256	5 %
list_service	382	214	4 %
start_negotiation	375	210	4 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.