MCP server health, State of MCP census

AdButler

com.adbutler/mcp-server

Manage AdButler campaigns, zones, ad items, VAST, and reports from Claude, ChatGPT, and Cursor.

healthy checked 2026-09-13 · 10/13 checks passed · keyless

Checks

The exact rows akashi check com.adbutler/mcp-server prints, from the 2026-09-13 census.

Check	Status	Detail
registry status	pass	active
server.json valid	pass	validates against its declared JSON Schema
repo reachable	pass	exists
repo freshness	pass	pushed 11d ago
package npm	pass	published (2.7.0)
remote reachable	pass	HTTP 200 via initialize
MCP conformance	pass	initialize handshake ok
tools/list	pass	627 tools: list_advertisers, get_advertiser, create_advertiser, update_advertiser, delete_advertiser, archive_advertiser, list_archived_advertisers, get_archived_advertiser, ...
remote reachable	pass	HTTP 200 via get
MCP conformance	skip	not evaluated
at least one live entrypoint	pass	4 alive
license present	warn	none detected
spec 2026-07-28	warn	needs-migration: no server/discover, rejects handshake-free requests, still mints Mcp-Session-Id, routing headers not enforced

Spec 2026-07-28 readiness

Verdict: needs-migration(no server/discover; rejects handshake-free requests; still mints Mcp-Session-Id; routing headers not enforced). Measured against the 2026-07-28 specification (ruleset 2026-07-28, compiled from the draft and re-diffed against the final text with no verdict-bearing rule changed) with read-only, keyless calls; see the ecosystem readiness report for how this server compares.

Accepts handshake-free calls	no
server/discover implemented	no
Session independence	session minted
Routing headers enforced	unknown

Advisory: negotiates 2025-06-18.

Evidence

Repository

github · alive

https://github.com/adbutler/mcp-server

Packages

npm @adbutler/mcp-server · published(2.7.0)

Remote endpoints

https://mcp.adbutler.com/mcp
streamable-http · reachable· HTTP 200· initialize_ok

627 tools: list_advertisers, get_advertiser, create_advertiser, update_advertiser, delete_advertiser, archive_advertiser, list_archived_advertisers, get_archived_advertiser, ...
https://mcp.adbutler.com/sse
sse · reachable· HTTP 200

server.json

validagainst its declared schema

One of 31538 servers in the 2026-09-13 State of MCP census: 25411 healthy (80.6%), 4667 degraded (14.8%), 1184 dead (3.8%), 276 unknown (0.9%).

Verify it yourself

This page is a static read of one dated probe. Run the same check locally, any time, with no key:

$ akashi check com.adbutler/mcp-server

Install Akashi - single Go binary, zero keys, MIT licensed.

Prefer the data? This page has a machine-readable record carrying the same checks, verdict and census date, under the same methodology.

Is this your server?

Claiming a server (an auto-refreshing badge and a verified publisher profile) is coming soon. Until then, embed the verified-on-date badge yourself with akashi check com.adbutler/mcp-server --badge.

Open data, CC BY 4.0. How this census works - denominator, tiers, and what each check does.