io.github.krystiangw/zen
NPM · @KRYSTIANGW/ZEN-MCP · SCANNED OCT 1
Unofficial MCP server for the ZEN.com Payment Gateway: payment links, transactions, refunds.
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 Security98
- 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
- 31 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 44 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
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 729 tokens (~45/item across 16 items; 14 tools + 2 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 15 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
How do I install the io.github.krystiangw/zen MCP server?
io.github.krystiangw/zen runs locally as an npm package, launched with npx -y @krystiangw/zen-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 · @krystiangw/zen-mcp
claude mcp add krystiangw-zen -- npx -y @krystiangw/zen-mcp
{
"mcpServers": {
"krystiangw-zen": {
"command": "npx",
"args": [
"-y",
"@krystiangw/zen-mcp"
]
}
}
} {
"servers": {
"krystiangw-zen": {
"command": "npx",
"args": [
"-y",
"@krystiangw/zen-mcp"
]
}
}
} codex mcp add krystiangw-zen -- npx -y @krystiangw/zen-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"krystiangw-zen": {
"type": "local",
"command": [
"npx",
"-y",
"@krystiangw/zen-mcp"
],
"enabled": true
}
}
} openclaw mcp add krystiangw-zen --command npx --arg -y --arg @krystiangw/zen-mcp
mcp_servers:
krystiangw-zen:
command: "npx"
args: ["-y", "@krystiangw/zen-mcp"] {
"McpServers": {
"krystiangw-zen": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@krystiangw/zen-mcp"
]
}
}
} assistant mcp add krystiangw-zen -t stdio -c npx -a -y @krystiangw/zen-mcp
{
"mcpServers": {
"krystiangw-zen": {
"command": "npx",
"args": [
"-y",
"@krystiangw/zen-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.
- 1 Oct 26 0
- Stability: 0.97 → pass security
- 30 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 −3
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 0
- Stability: 0.97 → pass security
- 23 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
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 1 Oct 2026 · Analysed npm/@krystiangw/zen-mcp@0.1.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 31 |
| 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 →
cancel_transaction Cancel transaction ~47
Destructive write: cancel a ZEN transaction. This may prevent or reverse payment processing; confirm before use.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| idempotencyKey | string | – | – |
No output schema declared.
No examples provided.
capture_transaction Capture transaction ~49
Destructive write: capture an authorized transaction, causing funds to be collected. Confirm before use.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | – | – | – |
| id | string | yes | – |
| idempotencyKey | string | – | – |
No output schema declared.
No examples provided.
create_customer Create customer ~68
Write operation: create a customer record in ZEN for future payment flows; this stores personal data.
| Name | Type | Req | Description |
|---|---|---|---|
| string | yes | – | |
| firstName | string | – | – |
| idempotencyKey | string | – | – |
| lastName | string | – | – |
| phone | string | – | – |
No output schema declared.
No examples provided.
create_payment_link Create payment link ~84
Write operation: create a hosted ZEN checkout link and QR code for a customer to pay.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | – | yes | – |
| currency | string | yes | – |
| customIpnUrl | string | – | – |
| description | string | – | – |
| expiresAt | string | – | – |
| idempotencyKey | string | – | – |
| merchantTransactionId | string | yes | – |
No output schema declared.
No examples provided.
create_payout Create payout ~106
Highest-risk destructive write: send money outward through ZEN. Verify recipient, channel, currency, and amount before use.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | – | yes | – |
| currency | string | yes | – |
| customerEmail | string | – | – |
| customerFirstName | string | – | – |
| customerLastName | string | – | – |
| customerPhone | string | – | – |
| idempotencyKey | string | – | – |
| merchantTransactionId | string | yes | – |
| paymentChannel | string | yes | – |
No output schema declared.
No examples provided.
download_report Download report ~53
Read-only: request a transaction or settlement report download from ZEN.
| Name | Type | Req | Description |
|---|---|---|---|
| endDate | string | – | – |
| format | string | – | – |
| reportType | string | – | – |
| startDate | string | – | – |
No output schema declared.
No examples provided.
get_payment_link Get payment link ~29
Read-only: retrieve a hosted ZEN payment link by ID.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
No output schema declared.
No examples provided.
get_payout Get payout ~31
Read-only: retrieve a ZEN payout by its ZEN ID.
| Name | Type | Req | Description |
|---|---|---|---|
| zenId | string | yes | – |
No output schema declared.
No examples provided.
get_transaction Get transaction ~42
Read-only: retrieve a transaction by exactly one ZEN ID or merchant transaction ID.
| Name | Type | Req | Description |
|---|---|---|---|
| merchantTransactionId | string | – | – |
| zenId | string | – | – |
No output schema declared.
No examples provided.
list_payment_links List payment links ~40
Read-only: list hosted ZEN payment links.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| page | integer | – | – |
| status | string | – | – |
No output schema declared.
No examples provided.
list_payment_methods List payment methods ~23
Read-only: list payment methods available to the configured ZEN terminal.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_supported_currencies List supported currencies ~23
Read-only: list currencies confirmed in the public ZEN documentation.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
refund_transaction Refund transaction ~62
Destructive write: return all or part of a payment to the customer. Confirm the transaction and amount before use.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | – | – | – |
| idempotencyKey | string | – | – |
| transactionId | string | – | – |
| zenId | string | – | – |
No output schema declared.
No examples provided.
verify_webhook_signature Verify webhook signature ~40
Read-only: verify a ZEN IPN webhook signature using the configured IPN secret.
| Name | Type | Req | Description |
|---|---|---|---|
| payload | – | yes | – |
| signature | string | yes | – |
No output schema declared.
No examples provided.
What is the io.github.krystiangw/zen MCP server?
io.github.krystiangw/zen is an MCP server listed in the public MCP registry as io.github.krystiangw/zen. Unofficial MCP server for the ZEN.com Payment Gateway: payment links, transactions, refunds. This page covers its npm package (@krystiangw/zen-mcp).
Is the io.github.krystiangw/zen MCP server safe to use?
io.github.krystiangw/zen scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 1 October 2026. It declares no install or post-install scripts. 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.krystiangw/zen MCP server expose?
io.github.krystiangw/zen exposes 14 tools: list_payment_methods, get_transaction, list_payment_links, get_payment_link, get_payout, and 9 more. Their descriptions and schemas cost roughly 697 tokens of context every time the server is loaded.
Is the io.github.krystiangw/zen MCP server still maintained?
io.github.krystiangw/zen is still listed as active in the MCP registry. We last reached this channel on 1 October 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.krystiangw/zen MCP server under?
io.github.krystiangw/zen declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.