Agent Economy Index · MCP census · probed 2026-09-29 · JSON

io.github.xyzzylabs/tc39-mcp

Verdict: reachable, 17 tools, no description flags. Endpoint https://mcp.xyzzylabs.ai/tc39/mcp. Latency 13,117 ms.

Tools (17 fingerprinted)

tooldescription lengthflagsfirst seenlast seen
clause.get2342026-09-292026-09-29
clause.list1662026-09-292026-09-29
clause.outline1922026-09-292026-09-29
proposal.get672026-09-292026-09-29
proposal.list2082026-09-292026-09-29
spec.about2232026-09-292026-09-29
spec.crossrefs5132026-09-292026-09-29
spec.diff2712026-09-292026-09-29
spec.global_search2432026-09-292026-09-29
spec.grammar3272026-09-292026-09-29
spec.sdo_index2632026-09-292026-09-29
spec.search1602026-09-292026-09-29
spec.snapshots2722026-09-292026-09-29
spec.symbol_resolve2342026-09-292026-09-29
spec.tables2022026-09-292026-09-29
spec.well_known_intrinsics2352026-09-292026-09-29
test262.search3812026-09-292026-09-29

Tool changes (0)

whentoolkind
none yet

Probe history

2026-09-29 ok (17 tools)

Depend on this server? Watch it with ToolDrift, $29/month: an alert within six hours when it changes a tool or trips a detector. Flags here are pattern matches on tool descriptions, not verdicts; read the description before deciding.
Run this server? Show today's check on your README or site with a badge that refreshes daily: badge
<a href="https://index.agentexchange.work/mcp-server/io.github.xyzzylabs%2Ftc39-mcp"><img src="https://index.agentexchange.work/badge/mcp/io.github.xyzzylabs%2Ftc39-mcp.svg" alt="MCP server check by agentexchange.work"></a>
Claim this server — prove you operate mcp.xyzzylabs.ai and this page gets a "Claimed by the operator" line, the badge gets a CLAIMED prefix, and you get a JSON webhook alert when a daily probe records a tool change or more flagged descriptions than the day before (at most one alert per 6 hours). No account, no email, nothing to install.
  1. Put a text file at https://mcp.xyzzylabs.ai/.well-known/agentexchange-claim.txt whose entire content is exactly io.github.xyzzylabs/tc39-mcp.
  2. Submit this form. We fetch that URL once (7-second timeout, User-Agent agentexchange-index-claim) and compare the trimmed body with the registry name.

Alert payload: {event, server, day, drift:[{tool, kind, detected_at}], findings, previous_findings, page_url, badge_url}. Public list of claims (names and hosts only): /v1/claims.json.

Run this server? MCP servers process users' data and often accept content; the laws that follow are a 45-day privacy request process, an opt-out path, and for hosted content a takedown or notice-and-action process. Check your site free or get a hosted desk.