io.github.nirholas/herald-mcp

three.ws Herald

Is the three.ws Herald MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-26.

Tell your human in person: a 3D character walks onto their open browser tab and says it out loud.

alive probed 2026-11-14 · unchanged since 2026-10-26

3tools

1.6ktokens in Claude Opus 5.5

0.8 %of Claude's 200k window

0.6×the median server

347 msto initialize

9 msto list tools

Run it: npx -y @three-ws/herald-mcp@0.1.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: herald-mcp 0.1.0
Capabilities: tools
Instructions: 840 characters
Of a 1M window: 0.2 % of a 1M context window
Count: 1.6k tokens in Claude Opus 5.5, exact, measured 2026-10-26. With the Claude Code prefix mcp__…__ on each tool name: 1.6k. The o200k_base estimate is 963. Counted again when the tool definitions change. Method.
Repository: https://github.com/nirholas/three.ws
Website: https://three.ws/herald
Registry: active, updated 2026-09-30 · registry entry
Changes: 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.61×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
announce	785	487	51 %
announce_result	537	333	35 %
check_rail	231	143	15 %

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

Claude Code Explorer MCP io.github.nirholas/claude-code-explorer-mcp · crashed on start
three.ws Concierge io.github.nirholas/concierge-mcp · alive
three.ws Copy Trading io.github.nirholas/copy-mcp · alive
Data Workbench io.github.nirholas/data-workbench-mcp · alive
three.ws Home io.github.nirholas/home-mcp · alive
io.github.nirholas/hood-mcp · alive
IBM watsonx.ai Granite io.github.nirholas/ibm-watsonx · alive
IBM Granite via x402 io.github.nirholas/ibm-x402-mcp · alive

Servers that mention herald.

io.github.btouchard/herald · no DNS
Herald io.github.siddhi-bansal/herald · alive
io.github.pinz-byte/herald-vehicle-auction · alive
Eclipse Herald MCP io.github.CYAN-ECLIPSE-TECHNOLOGIES-LLC/herald · alive
Eclipse Proof MCP io.github.CYAN-ECLIPSE-TECHNOLOGIES-LLC/proof · not probed
Eclipse Promptseal io.github.CYAN-ECLIPSE-TECHNOLOGIES-LLC/eclipse-promptseal-mcp · not probed
Lorebase io.github.aantenore/lorebase-herald · alive

We add a row when the result changes. A server with no change keeps its last row.

Probed	Result	Init	Tools	Claude	o200k
2026-10-26 07:06	alive	378 ms	3	1.6k	963
2026-10-19 06:54	alive	347 ms	3		963

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.