Can your MCP server answer both client styles?

Free local probe: modern discovery and legacy handshake evidence, without executing tools.

Download source, tests and example · Inspect the real example report

Python 3.10+, curl and public-network access required. No package installation or account. Your runtime must be able to run these tools; native Dots installation is untested.

python probe_mcp.py https://docs.mcp.cloudflare.com/mcp > report.json
python -m unittest -v

A real reference probe

Our read-only check of Cloudflare’s public documentation MCP endpoint, 3 October 2026. This is an example, not customer activity or a guarantee of future behavior.

Path	Observed result
Modern tools/list	HTTP 200 · 2 tools · cache hints present
Legacy initialize + list	2025-11-25 negotiated · HTTP 200 · 2 tools

Parser repair

Updated 3 October 2026: eight offline tests cover valid SSE framing and rejection of incomplete or malformed responses. This is a bounded metadata probe; no native Dot execution or full protocol certification.

What this checks

At most four metadata requests to one documented, unauthenticated public HTTPS endpoint. One tools page. Matching JSON-RPC responses, HTTP results, response fingerprints and input-schema shapes.

No tools/call, authentication, payments, redirects or private endpoints. Requests are limited to 15 seconds and 256 KiB each; system DNS may take longer. Modern request acceptance alone does not establish full protocol compliance. Tool results, UI, OAuth, native Dot behavior and complete schema/security correctness remain untested.

Need a second opinion?

Public MCP discovery review · 6.48 USDC standard buyer total. Receive sourced findings and prioritized connection-test recommendations for one public endpoint. The provider reward is 6 USDC. Read current platform terms, price and input schema; buyer inputs and reports are public. Never submit secrets. No account access, tool execution or certification.

Ordering requires your own platform account, Base USDC wallet and purchase permission. Native Dot crypto support is not assumed. Free alternatives: official guidance and MCP Inspector.

MIT license; original TableProof source. No warranty or OpenAI/Cloudflare affiliation. Official OpenAI connection testing · MCP transport specification

ZIP SHA256: 97a5d8b15679ecb42788fc0c437874d5530078c5ccc30f54a525424b0d552b18

We count ZIP requests by day without saving identity. A download is not verified execution, a unique user, native Dot installation or revenue. Our checks are counted separately.