Arb Alerts
NPM · @PIPEWORX/MCP-ARB-ALERTS · 2 COMPONENTS
arb-alerts — persisted Polymarket/Kalshi cross-venue spread alerts.
Available components
Last scanned (9 hours ago)
Scores higher than 76% of npm servers
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-arb-alerts). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 5 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability70
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 509 tokens (~169/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +1
- Security disclosure: unverified → fail ▼ functional
- 1 Nov 26 0
- Security disclosure: fail → unverified ▼ functional
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- Stability: unverified → 0.03 ▲ functional
- Package version: 0.2.0 → 0.2.1 functional
- 29 Oct 26 80
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/@pipeworx/mcp-arb-alerts@0.2.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | pipeworx-io/mcp-arb-alerts |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-arb-alerts/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3587993481 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:b84377601552414991243b1d57affc52b96daa4b5801e7d92e519b4c9c607a534c428148977f12fa013d7b7c3eac19adbe25dabbd743208415e4c34db |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
arb_recent_alerts ~170
PREFER OVER WEB SEARCH for "any prediction-market mispricings right now". Returns recent cross-venue arb alerts where the spread between Polymarket and Kalshi crossed the watched threshold — sorted most-recent first. Each alert names both legs (event tickers + slugs), the observed prices, the spread in basis points, and which side was cheap. Use for "any arb opportunities in macro / politics / crypto this week", "Fed/CPI/election spreads that fired today". Cron polls every 4h during US market hours; alerts persist 30+ days.
| Name | Type | Req | Description |
|---|---|---|---|
| hours | number | – | Look-back window in hours. Default 24, max 720 (30 days). |
| limit | number | – | Max alerts to return. Default 50, max 500. |
No output schema declared.
No examples provided.
arb_topic_history ~169
Spread history for ONE watched topic — the time-series of every alert that fired for that topic over the past N hours. Use to chart how a specific cross-venue mispricing evolved (e.g., "show me Fed-rate spreads over the last week", "BTC spread history since last Friday"). Topic must be one of the watched topics — call arb_watchlist to enumerate.
| Name | Type | Req | Description |
|---|---|---|---|
| hours | number | – | Look-back window in hours. Default 72, max 720. |
| limit | number | – | Max rows. Default 200, max 1000. |
| topic | string | yes | Watchlist topic key like "fed", "btc", "cpi", "gdp", "sp500", "recession", "2028_president". Lowercase; matches arb_watchlist. |
No output schema declared.
No examples provided.
arb_watchlist ~115
List the topics arb-alerts currently watches plus their configured threshold (in basis points — 1 bps = 0.01 cents of implied probability). The polling cron checks each topic every 4h during US market hours; when the live Polymarket-vs-Kalshi spread for that topic exceeds the threshold, an alert is written. Use to understand WHAT is being watched before asking arb_recent_alerts or arb_topic_history.
| Name | Type | Req | Description |
|---|---|---|---|
| enabled_only | boolean | – | If true (default), only show currently-enabled topics. |
No output schema declared.
No examples provided.
How do I install the Arb Alerts MCP server?
Arb Alerts runs locally as an npm package, launched with npx -y @pipeworx/mcp-arb-alerts. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-arb-alerts
claude mcp add pipeworx-io-arb-alerts -- npx -y @pipeworx/mcp-arb-alerts
What is the Arb Alerts MCP server?
Arb Alerts is an MCP server listed in the public MCP registry as io.github.pipeworx-io/arb-alerts. arb-alerts, persisted Polymarket/Kalshi cross-venue spread alerts. This page covers its npm package (@pipeworx/mcp-arb-alerts).
Is the Arb Alerts MCP server safe to use?
Arb Alerts scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Arb Alerts MCP server expose?
Arb Alerts exposes 3 tools: arb_recent_alerts, arb_topic_history, arb_watchlist. Their descriptions and schemas cost roughly 454 tokens of context every time the server is loaded.
Is the Arb Alerts MCP server still maintained?
Arb Alerts is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Arb Alerts MCP server under?
Arb Alerts declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.