io.github.chrischall/groupon-mcp
NPM · GROUPON-MCP · SCANNED SEP 20
Groupon deals for Claude — search and browse local, goods, and travel deals
Available components
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
- 0 of 9 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to chrischall/groupon-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 0 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 844 tokens (~120/item across 7 items; 7 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 Management93
- Stability observed for 28 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 Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "groupon_clear_cart" implies "remove" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the io.github.chrischall/groupon-mcp server?
io.github.chrischall/groupon-mcp runs locally as an npm package, launched with npx -y groupon-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · groupon-mcp
claude mcp add chrischall-groupon-mcp -- npx -y groupon-mcp
{
"mcpServers": {
"chrischall-groupon-mcp": {
"command": "npx",
"args": [
"-y",
"groupon-mcp"
]
}
}
} {
"servers": {
"chrischall-groupon-mcp": {
"command": "npx",
"args": [
"-y",
"groupon-mcp"
]
}
}
} codex mcp add chrischall-groupon-mcp -- npx -y groupon-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"chrischall-groupon-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"groupon-mcp"
],
"enabled": true
}
}
} openclaw mcp add chrischall-groupon-mcp --command npx --arg -y --arg groupon-mcp
mcp_servers:
chrischall-groupon-mcp:
command: "npx"
args: ["-y", "groupon-mcp"] {
"McpServers": {
"chrischall-groupon-mcp": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"groupon-mcp"
]
}
}
} assistant mcp add chrischall-groupon-mcp -t stdio -c npx -a -y groupon-mcp
{
"mcpServers": {
"chrischall-groupon-mcp": {
"command": "npx",
"args": [
"-y",
"groupon-mcp"
]
}
}
} 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.
- 20 Sept 26 0
- Security disclosure: unverified → fail ▼ functional
- MCP protocol: Implements a current MCP spec version (2026-07-28). functional
- Package version: 0.4.0 → 1.0.0 functional
- 19 Sept 26 +1
- Security disclosure: fail → unverified ▼ functional
- 18 Sept 26 +1
- Stability: 0.83 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Dependency health: 0.87 → 1.00 ▲ functional
- Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. functional
- Package version: 0.3.3 → 0.4.0 functional
- 16 Sept 26 +12
- Malware scan: unverified → pass ▲ security
- Stability: pass → 0.80 functional
- 15 Sept 26 −14
- Malware scan: pass → unverified ▼ security
- Stability: 0.97 → pass security
- Package version: 0.3.2 → 0.3.3 functional
- 14 Sept 26 0
- Stability: 0.93 → unverified ▼ security
- Provenance: pass → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. functional
- Package version: 0.3.1 → 0.3.2 functional
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +15
- Malware scan: unverified → pass ▲ security
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 20 Sept 2026 · Analysed npm/groupon-mcp@1.0.0
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 | chrischall/groupon-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/chrischall/groupon-mcp/.github/workflows/release-please.yml@refs/heads/main |
| Rekor log index | 2893921614 |
| Predicate type | https://slsa.dev/provenance/v1 |
| Subject digest | sha512:2f0e7d619db102f0b430a22828dc3f54757d952af24ec4ef45d8040be923e879df0c637b051df8d464df61fa0a6b4db6e2c6f7b10a9336e8a0d71fed1 |
Background: How many MCP packages publish verified provenance →
Dependencies 9 packages
| Packages resolved | 9 |
|---|---|
| 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 →
groupon_clear_cart ~76
Remove ALL items from your signed-in Groupon cart. WITHOUT confirm:true this is a DRY RUN listing what would be removed. WITH confirm:true it removes every line item and re-reads the cart to verify it is empty.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | – | Must be true to proceed. Without this, the tool returns a preview. |
No output schema declared.
No examples provided.
groupon_get_deal ~171
Fetch a single Groupon deal by its permalink slug (or full deal URL). Returns the slim projection by default (title, subtitle, merchant, price, rating, division, option summaries, url); set view="full" for Groupon's whole record.
| Name | Type | Req | Description |
|---|---|---|---|
| dealId | string | yes | Deal permalink slug (e.g. "enset-productions-and-ventures-3") OR a full Groupon deal URL — the last path segment is used. |
| optionId | string | – | Optional deal option id to focus on. |
| view | string | – | Response shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact returns the slim projection where one exists and s… |
No output schema declared.
No examples provided.
groupon_healthcheck ~33
Report that the groupon-mcp server is running and its version. Deal-read tools arrive in a later phase.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
groupon_list_categories ~98
Fetch Groupon's category taxonomy tree. Returns a slim {title, url, children} tree by default; set view="full" for Groupon's whole payload.
| Name | Type | Req | Description |
|---|---|---|---|
| view | string | – | Response shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact returns the slim projection where one exists and s… |
No output schema declared.
No examples provided.
groupon_purchase ~212
Add a Groupon deal option to your cart, ready for checkout. WITHOUT confirm:true this is a DRY RUN — it previews what would be added and makes NO change to your cart. WITH confirm:true it adds the item, re-reads the cart to verify, and returns the checkout URL for YOU to complete payment. It CANNOT place the order — Groupon checkout is native Apple/Google Pay, card, or PayPal.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | – | Must be true to proceed. Without this, the tool returns a preview. |
| dealId | string | yes | Deal permalink slug (e.g. "versailles-massage-bar-1") OR a full Groupon deal URL — the last path segment is used. |
| isGift | boolean | – | Mark the line item as a gift. |
| optionId | string | – | Which deal option to buy (an option id from groupon_get_deal). Defaults to the first option. |
| quantity | integer | – | How many to add (default 1). |
No output schema declared.
No examples provided.
groupon_search_deals ~211
Search or browse Groupon deals for a city (division). Pass `query` for a free-text search (e.g. "massage", "pizza"); omit it for a plain category/city browse. Returns slim deal summaries by default; set view="full" for Groupon's whole cards.
| Name | Type | Req | Description |
|---|---|---|---|
| division | string | – | Groupon city slug, e.g. new-york, chicago, syracuse. |
| limit | integer | – | Maximum number of deals to return (1-100). |
| offset | integer | – | Number of deals to skip for pagination (0-based). |
| query | string | – | Free-text search term (e.g. "massage", "pizza"). Omit for a plain category/city browse. |
| view | string | – | Response shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact returns the slim projection where one exists and s… |
No output schema declared.
No examples provided.
groupon_view_cart ~43
View the items currently in your signed-in Groupon cart. Requires a Groupon session (GROUPON_SESSION_COOKIE, or the fetchproxy browser bridge signed into groupon.com).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the io.github.chrischall/groupon-mcp server?
io.github.chrischall/groupon-mcp is listed in the public MCP registry as io.github.chrischall/groupon-mcp. Groupon deals for Claude, search and browse local, goods, and travel deals. This page covers its npm package (groupon-mcp).
Is the io.github.chrischall/groupon-mcp server safe to use?
io.github.chrischall/groupon-mcp scores 93 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 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 io.github.chrischall/groupon-mcp server expose?
io.github.chrischall/groupon-mcp exposes 7 tools: groupon_healthcheck, groupon_search_deals, groupon_get_deal, groupon_list_categories, groupon_view_cart, and 2 more. Their descriptions and schemas cost roughly 844 tokens of context every time the server is loaded.
Is the io.github.chrischall/groupon-mcp server still maintained?
io.github.chrischall/groupon-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 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 io.github.chrischall/groupon-mcp server under?
io.github.chrischall/groupon-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.