- What it is
- Give models a standard way to list and call tools, resources and prompts.
- Who maintains it
- Anthropic, MCP steering / spec community
- Payment / transport model
- A host talks to servers that expose tools. tools/list describes input schema. tools/call does one job. Paid MCP is currently a market category of overlays (gateways, x402 challenge-handoff, MPP), not a single core spec feature.
- Networks
- Transport-agnostic; not a settlement network
- Evidence
- Primary Anthropic publication. Cloudflare’s Monetization Gateway (1 July 2026) treats MCP tools as chargeable resources beside APIs and pages.
- Last verified
- 7 September 2026
Until the MCP spec names a payment profile, “paid MCP” remains a category, not a standard.
Official documentation · Primary source · Explainer
Known ecosystem relationships
- anthropicBUILDSmcp
- evt-anthropic-mcp-directoryDISCUSSESmcp
- evt-google-ap2-2025-09-16DISCUSSESmcp
- evt-mcp-anthropic-2024-11-25DISCUSSESmcp
- evt-mcp-paid-tools-gapDISCUSSESmcp
- evt-mcp-spec-siteDISCUSSESmcp
- evt-mcp-typescript-sdk-releases-pageDISCUSSESmcp
- evt-mcp-typescript-sdk-releasesDISCUSSESmcp
- mcp-zfinia-intelligenceCAN USEmcp
Machine: https://api.zfinia.com/v1/graph/entities/mcp