VirWave Breathe
REMOTE · XSWEBTVKUEUSDAEBOIZP.SUPABASE.CO · 2 COMPONENTS · SCANNED SEP 26
Calm, animated breathing sessions paced to your breath. Runs locally and collects nothing.
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 Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 1 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- 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 Usability77
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2020 tokens (~336/item across 6 items; 3 tools + 3 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 Management7
- Stability observed for 2 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 5 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
- Supports UI / widget rendering.Pass
How do I install the VirWave Breathe MCP server?
VirWave Breathe is a hosted endpoint at https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe, 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 · xswebtvkueusdaeboizp.supabase.co
claude mcp add --transport http virwave-virwave-breathe 'https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe'
{
"mcpServers": {
"virwave-virwave-breathe": {
"url": "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe"
}
}
} {
"servers": {
"virwave-virwave-breathe": {
"type": "http",
"url": "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe"
}
}
} [mcp_servers.virwave-virwave-breathe] url = "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"virwave-virwave-breathe": {
"type": "remote",
"url": "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe",
"enabled": true
}
}
} openclaw mcp add virwave-virwave-breathe --url 'https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe' --transport streamable-http
mcp_servers:
virwave-virwave-breathe:
url: "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe" {
"McpServers": {
"virwave-virwave-breathe": {
"Transport": "http",
"Url": "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe"
}
}
} assistant mcp add virwave-virwave-breathe -t streamable-http -u 'https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe'
{
"mcpServers": {
"virwave-virwave-breathe": {
"type": "http",
"url": "https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe"
}
}
} 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.
- 26 Sept 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.
- 25 Sept 26 0
- 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 67
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 26 Sept 2026 · Probed https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=supabase.co | CN=WE1,O=Google Trust Services,C=US | 26 Aug 2026 | 24 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | 7c35296a896c0a6f13f8495266045d45 |
| SANs: supabase.co, *.supabase.co | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of xswebtvkueusdaeboizp.supabase.co. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| co. | present | 7786 | 8 | Verified |
| supabase.co. | 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=31536000; includeSubDomains; preload |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe | Verified | 200 | |
| http (plaintext) | http://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe | HTTPS enforced | 301 | https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe |
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 →
breathe Start a breathing session ~341
Creates an animated VirWave breathing session the person can follow with their eyes. Invoke it when someone asks for a breathing break, a breathing exercise, guided breathing, or a moment to calm down, relax, or reset: the visual session is the breathing break. In a client that supports MCP Apps (Claude on the web and in the desktop app, for example), the session appears in the chat itself. The result also carries a link to the same session as a web page, for any client that cannot draw it there. Either way the session opens at rest and starts when the person presses Begin, so nothing moves without their say-so. With no inputs, it plays the default Circle 4-8 Breathing session, which has no breath holds.
| Name | Type | Req | Description |
|---|---|---|---|
| cycles | integer | – | Exact number of breath cycles. Takes precedence over minutes. |
| minutes | number | – | Approximate session length; rounded to whole breath cycles. |
| pattern | string | – | Pattern id from list_patterns. Defaults to in-out-extended-exhale. list_patterns marks each hold-free pattern with "holdFree": true. |
| shape | string | – | Shape to draw. Each pattern lists the shapes it can use; defaults to the pattern's first. box: A square whose outline draws itself once per breath cycle. triangle: A triangle whose outline draws itse… |
No output schema declared.
No examples provided.
list_patterns List breathing patterns ~57
Lists the VirWave breathing patterns this server can play: phases and seconds, what each rhythm is good for, which shapes can draw it, whether it is hold-free, and any safety note about breath holds. Hold-free patterns are listed first.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
start_session Start a matched session ~428
Matches a VirWave session the way the app's entry flow does: how clearly a feeling is coming through, what they'd like instead, and how long they have. Invoke it when someone says how they are feeling, or what they would like to feel instead, and wants a breathing session that fits. The session moves through stages (arrive, the matched core, close), each with its own shape, at one steady breath pace, and ends at the chosen length. In a client that supports MCP Apps (Claude on the web and in the desktop app, for example), the session appears in the chat itself. The result also carries a link to the same session as a web page, for any client that cannot draw it there. Either way the session waits for Begin, and the result says why it was picked and which stages it has. Every matched session is hold-free: breathe in, a longer breath out.
| Name | Type | Req | Description |
|---|---|---|---|
| feeling | string | yes | How the feeling is coming through: how clearly, not which feeling it is. The options describe how clear the signal is, and none of them names an emotion. flat (Flat / no signal: Numb, far off, nothin… |
| goal | string | yes | What they'd like instead. grounded (Grounded: Back in the body, contact restored.) calm (Calm: Slower, softer, less pressure.) clear (Clear: One thing at a time, in focus.) unstuck (Unstuck: The loop… |
| minutes | number | yes | How long they have: 2, 5, 10, or 15 minutes. Longer sessions move through more stages, not just more time. |
No output schema declared.
No examples provided.
What is the VirWave Breathe MCP server?
VirWave Breathe is an MCP server listed in the public MCP registry as io.github.virwave/virwave-breathe. Calm, animated breathing sessions paced to your breath. Runs locally and collects nothing. This page covers its hosted endpoint (https://xswebtvkueusdaeboizp.supabase.co/functions/v1/breathe).
Is the VirWave Breathe MCP server safe to use?
VirWave Breathe scores 68 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 VirWave Breathe MCP server expose?
VirWave Breathe exposes 3 tools: list_patterns, breathe, start_session. Their descriptions and schemas cost roughly 826 tokens of context every time the server is loaded.
Does the VirWave Breathe MCP server require authentication?
No. We connected to VirWave Breathe without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the VirWave Breathe MCP server still maintained?
VirWave Breathe is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.