# State of Web Vitals MCP

**Canonical:** https://apis.io/apis/corewebvitals-io/state-of-cwv-mcp/  
**Provider:** CoreWebVitals.io — https://apis.io/providers/corewebvitals-io/  
**Base URL:** https://www.corewebvitals.io/api/state-of-cwv/mcp  
**Documentation:** https://www.corewebvitals.io/state-of-cwv

State of Web Vitals MCP is one of 2 APIs that [CoreWebVitals.io](https://apis.io/providers/corewebvitals-io/) publishes on the [APIs.io](https://apis.io/) network. This API exposes 1 JSON Schema definition. Tagged areas include MCP, Core Web Vitals, and Web Performance. The published artifact set on APIs.io includes API documentation and 1 JSON Schema.

Free, no-auth remote MCP server (registry io.github.corewebvitals/state-of-cwv) serving cross-site Core Web Vitals and technique metrics from real Chrome field data by CMS, CDN and framework. A live anonymous tools/list on 2026-11-04 returned three tools (get_metrics, get_histogram, list_options); the verbatim response with input schemas is saved in json-schema/.

## Machine-readable artifacts (4)

- **MCPServer** — https://www.corewebvitals.io/api/state-of-cwv/mcp
- **JSONSchema** — https://artifacts.apis.io/corewebvitals-io/json-schema/corewebvitals-io-state-of-cwv-mcp-tools-list.json
- **Documentation** — https://www.corewebvitals.io/state-of-cwv
- **APIsJSON** — https://artifacts.apis.io/corewebvitals-io/apis.yml

## Other CoreWebVitals.io APIs (1)

- [CoreDash API](https://apis.io/apis/corewebvitals-io/coredash-api/)

## Tags

MCP, Core Web Vitals, Web Performance

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/corewebvitals-io/state-of-cwv-mcp/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/corewebvitals-io/.