Agent Economy Index · MCP census · probed 2026-10-13 · JSON

`com.fronterasignal/frontera-signal`

Verdict: 1 tool description(s) carry model-directed, hidden, secret-material or exfiltration patterns. Endpoint https://fronterasignal.com/mcp. Latency 12,933 ms.

Tools (4 fingerprinted)

tool	description length	flags	first seen	last seen
`get_free_series`	402		2026-10-04	2026-10-13
`get_sample`	245		2026-10-04	2026-10-13
`how_to_pay`	386	secret_material	2026-10-04	2026-10-13
`list_endpoints`	462		2026-10-04	2026-10-13

Tool changes (0)

when	tool	kind
none yet

Probe history

2026-10-13 ok (4 tools) · 2026-10-12 ok (4 tools) · 2026-10-11 ok (4 tools) · 2026-10-10 ok (4 tools) · 2026-10-09 ok (4 tools) · 2026-10-08 ok (4 tools) · 2026-10-07 ok (4 tools) · 2026-10-06 ok (4 tools) · 2026-10-05 ok (4 tools) · 2026-10-04 ok (4 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:

<a href="https://index.agentexchange.work/mcp-server/com.fronterasignal%2Ffrontera-signal"><img src="https://index.agentexchange.work/badge/mcp/com.fronterasignal%2Ffrontera-signal.svg" alt="MCP server check by agentexchange.work"></a>

Claim this server — prove you operate fronterasignal.com 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.

Put a text file at https://fronterasignal.com/.well-known/agentexchange-claim.txt whose entire content is exactly com.fronterasignal/frontera-signal.
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.

Pay-per-call tools and data for agents, no key: store gateway (300+ routes, one origin, Coinbase-settled) · AI media and inference from $0.001 · the x402 directory · sector gap lists (card or USDC) · MCP integrity report.