Prerender Buddy MCP (kopachlager/prerenderbuddy-mcp) is an MCP server listed on the M8ven Trust Index. It scores 89 out of 100, grade B. It declares 10 tools. The publisher has proved control of what we score (Verified Publisher).

Back to MCP Trust IndexM8ven
B
Emerging
89/100
6 days ago

Prerender Buddy MCP

Provides local MCP tools for checking what public crawlers can read from HTTP responses, including crawler readability, response comparison, and discovery file checks.

→ kopachlager/prerenderbuddy-mcp· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code VerifiedSandbox Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

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Who stands behind it

gmail.com (@kopachlager) · Verified Publisher

Source: Glama

Maintenance & responsiveness
as of 2026-08-20
Issues closed (90d): 0 · 0 open
Releases (90d): 6
Active contributors (6mo): 1
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Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings
✅
10 tools verified — handlers match their declared behaviour
3 read-only tools verified — handlers contain no write/delete/exec
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: PRERENDER_BUDDY_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
Are you the publisher? Confirm or correct these findings.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configPRERENDER_BUDDY_API_BASE_URLstaging development can override it with .
🔐 secretPRERENDER_BUDDY_API_KEYWith configured, the server also lists:
configPRERENDER_BUDDY_API_TIMEOUT_MS
// quality suggestions

Tool annotations

3/10 tools have annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

7/10 tools missing one or more hints — list_sites (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_site_overview (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_health_evidence (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +4 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool test coverage

4/10 tools referenced in tests (40%)

Write tests that reference each tool by name so every tool has at least one test.

Domain consistency

npm scope @prerenderbuddy doesn't match GitHub owner kopachlager

Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.

// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/kopachlager/prerenderbuddy-mcp)](https://m8ven.ai/mcp/kopachlager/prerenderbuddy-mcp)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 42a668c4dcfbf15879e2949b1075f54726476d8e
code hash: 16cfef79a20d4947d94c9d4d8ac69095e78cfba1bb911583aeea960068d7bd1b
verified: 9/4/2026, 1:39:46 AM
view raw JSON →
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