Tipping Rules
REMOTE · WWW.TIPPINGRULES.COM · SCANNED SEP 21
Read-only travel tipping for 140 destinations: search, country rules, and tip calculator.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability81
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 250 tokens (~83/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management67
- Stability observed for 20 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.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 current MCP spec version (2026-07-28).Pass
How do I install the Tipping Rules MCP server?
Tipping Rules is a hosted endpoint at https://www.tippingrules.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · www.tippingrules.com
claude mcp add --transport http com-tippingrules-tipping-rules 'https://www.tippingrules.com/api/mcp'
{
"mcpServers": {
"com-tippingrules-tipping-rules": {
"url": "https://www.tippingrules.com/api/mcp"
}
}
} {
"servers": {
"com-tippingrules-tipping-rules": {
"type": "http",
"url": "https://www.tippingrules.com/api/mcp"
}
}
} [mcp_servers.com-tippingrules-tipping-rules] url = "https://www.tippingrules.com/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-tippingrules-tipping-rules": {
"type": "remote",
"url": "https://www.tippingrules.com/api/mcp",
"enabled": true
}
}
} openclaw mcp add com-tippingrules-tipping-rules --url 'https://www.tippingrules.com/api/mcp' --transport streamable-http
mcp_servers:
com-tippingrules-tipping-rules:
url: "https://www.tippingrules.com/api/mcp" {
"McpServers": {
"com-tippingrules-tipping-rules": {
"Transport": "http",
"Url": "https://www.tippingrules.com/api/mcp"
}
}
} assistant mcp add com-tippingrules-tipping-rules -t streamable-http -u 'https://www.tippingrules.com/api/mcp'
{
"mcpServers": {
"com-tippingrules-tipping-rules": {
"type": "http",
"url": "https://www.tippingrules.com/api/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “calculate_tip” rewrote its description, which is the text the model reads security
- Tool “get_tipping_rules” rewrote its description, which is the text the model reads security
- Tool “search_countries” rewrote its description, which is the text the model reads security
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Sept 26 0
- The server rewrote its instructions, which are the text every model session reads security
- 8 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 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 21 Sept 2026 · Probed https://www.tippingrules.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.tippingrules.com | CN=YR1,O=Let's Encrypt,C=US | 12 Aug 2026 | 10 Nov 2026 | RSA 2048 | SHA256-RSA | 5c5b0a99ad69dc9f421c6d732b6024ee1a6 |
| SANs: www.tippingrules.com | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.tippingrules.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| tippingrules.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' https://www.googletagmanager.com blob:; worker-src 'self' blob:; child-src 'self' blob:; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; font-src 'self' data: https://api.mapbox.com; connect-src 'self' https://www.google-analytics.com https://www.googletagmanager.com https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://www.google.com https://stats.g.doubleclick.net https://*.sentry.io https://*.ingest.sentry.io https://*.ingest.de.sentry.io https://api.mapbox.com https://*.tiles.mapbox.com https://events.mapbox.com; frame-src 'self' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.tippingrules.com/api/mcp | Verified | 200 | |
| http (plaintext) | http://www.tippingrules.com/api/mcp | HTTPS enforced | 308 | https://www.tippingrules.com/api/mcp |
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 →
calculate_tip Calculate tip ~93
Calculate a suggested tip and total for a bill using Tipping Rules destination norms (percent or round-up). Returns amounts plus canonical destination and calculator URLs.
| Name | Type | Req | Description |
|---|---|---|---|
| bill | – | yes | Bill amount in local currency units (positive number). |
| country | string | yes | Country slug or name for local tipping norms. |
| service | string | – | Service category. Prefer restaurant, bar, taxi, delivery, hotelStaff, or tourGuides. |
Structured output declared, but exposes no named fields.
No examples provided.
get_tipping_rules Get tipping rules ~58
Get concise tipping guidance for a destination: status, summary, key service recommendations, last reviewed date, and the canonical page URL.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | yes | Country slug (preferred) or country name, e.g. japan or Japan. |
Structured output declared, but exposes no named fields.
No examples provided.
search_countries Search destinations ~46
Search Tipping Rules destinations by name or region. Returns matching destinations with status and canonical page URLs.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Country name, alias, or region fragment to search. |
Structured output declared, but exposes no named fields.
No examples provided.
What is the Tipping Rules MCP server?
Tipping Rules is an MCP server listed in the public MCP registry as com.tippingrules/tipping-rules. Read-only travel tipping for 140 destinations: search, country rules, and tip calculator. This page covers its hosted endpoint (https://www.tippingrules.com/api/mcp).
Is the Tipping Rules MCP server safe to use?
Tipping Rules scores 84 out of 100 on VerifyMCP. 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 Tipping Rules MCP server expose?
Tipping Rules exposes 3 tools: search_countries, get_tipping_rules, calculate_tip. Their descriptions and schemas cost roughly 197 tokens of context every time the server is loaded.
Does the Tipping Rules MCP server require authentication?
No. We connected to Tipping Rules without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Tipping Rules MCP server still maintained?
Tipping Rules is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.