Isbn is answering right now. Last checked 11 min ago. It exposes 33 tools. Last commit 13 Sep 2026.
ISBN validation & conversion MCP.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 August 2026. No other catalogue keeps this.
Today is the operative word: we check Isbn every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.
claude mcp add isbn --transport http https://gateway.pipeworx.io/isbn/mcp
{
"mcpServers": {
"isbn": {
"url": "https://gateway.pipeworx.io/isbn/mcp"
}
}
}
[mcp_servers.isbn]
url = "https://gateway.pipeworx.io/isbn/mcp"
{
"mcpServers": {
"isbn": {
"url": "https://gateway.pipeworx.io/isbn/mcp"
}
}
}
{
"mcpServers": {
"isbn": {
"url": "https://gateway.pipeworx.io/isbn/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
polymarket_arbitrage
polymarket_edge_tracker
polymarket_edges
polymarket_fill_risk
polymarket_kalshi_spread
ask_pipeworx
ask_pipeworx_beta
ask_pipeworx_grounded
pipeworx_feedback
pipeworx_trending
recent_alerts
recent_changes
scan_competitor_ai_presence
scan_dependency
validate_claim
validate_isbn
bet_research
compare_entities
convert_isbn
deep_research
discover_tools
entity_profile
forget
generate_llms_txt
recall
remember
resolve_entity
subscribe
list_subscriptions
suggest_questions
unsubscribe
ai_visibility_check
search_within
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://gateway.pipeworx.io/isbn/mcp | streamable-http | answering | 79 ms | 11 min ago |
IMEI validation MCP.
Text case conversion MCP.
UUID validation & generation MCP.
JSON Schema validation MCP.
Phone number validation MCP.
Credit-card number validation MCP.
EU VIES VAT-number validation MCP (European Commission).
Securities-identifier validation MCP (ISIN / CUSIP).
Answers built from our own checks of this server.