io.github.corewebvitals/state-of-cwv
State of Web Vitals
io.github.corewebvitals/state-of-cwv costs 1 064 tokens of context per session. It has 3 tool definitions. That is 0.5 % of a 200k window. Measured 2026-10-03.
Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.
alive probed 2026-10-03 · HTTP 200
3tools
1.1ktokens for the tool definitions
0.5 %of a 200k context window
1.3 sto initialize
776 msto list tools
- Endpoint
- https://www.corewebvitals.io/api/state-of-cwv/mcp (streamable-http)
- Host
- www.corewebvitals.io
- Protocol
- 2025-03-26
- Reports itself as
- state-of-cwv 1.0.0
- Capabilities
- tools
- Instructions
- 2 523 characters
- Repository
- https://github.com/corewebvitals/state-of-cwv-mcp
- Website
- https://www.corewebvitals.io/state-of-cwv
- Registry
- active, updated 2026-07-16 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| get_metrics | 606 | 57 % |
| get_histogram | 352 | 33 % |
| list_options | 106 | 10 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:37 | alive | 1.3 s | 3 | 1.1k |
| 2026-10-03 17:53 | alive | 261 ms | 3 | 1.1k |
Badge
[](https://mcp-pulse.ulehla.dev/s/io.github.corewebvitals/state-of-cwv)