Agent Economy Index · MCP census · probed 2026-10-03 · JSON
com.premierletters/mcp
Verdict: 1 tool description(s) carry model-directed, hidden, secret-material or exfiltration patterns. Endpoint https://www.premierletters.com/api/mcp. Latency 14,903 ms.
Tools (8 fingerprinted)
| tool | description length | flags | first seen | last seen |
|---|---|---|---|---|
create_order | 359 | secret_material | 2026-09-29 | 2026-10-03 |
get_order_status | 80 | 2026-09-29 | 2026-10-03 | |
get_pricing | 215 | 2026-09-29 | 2026-10-03 | |
list_handwriting_styles | 170 | 2026-09-29 | 2026-10-03 | |
list_orders | 44 | 2026-09-29 | 2026-10-03 | |
list_templates | 53 | 2026-09-29 | 2026-10-03 | |
preview_letter | 127 | 2026-09-29 | 2026-10-03 | |
verify_address | 128 | 2026-09-29 | 2026-10-03 |
Tool changes (0)
| when | tool | kind |
|---|---|---|
| none yet |
Probe history
2026-10-03 ok (8 tools) · 2026-10-02 timeout · 2026-10-01 ok (8 tools) · 2026-09-30 ok (8 tools) · 2026-09-29 ok (8 tools)
<a href="https://index.agentexchange.work/mcp-server/com.premierletters%2Fmcp"><img src="https://index.agentexchange.work/badge/mcp/com.premierletters%2Fmcp.svg" alt="MCP server check by agentexchange.work"></a>
www.premierletters.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://www.premierletters.com/.well-known/agentexchange-claim.txtwhose entire content is exactlycom.premierletters/mcp. - 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.
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.