Whenna
REMOTE · WHENNA.COM · SCANNED AUG 3
Group scheduling: create a plan link, mark availability, get best times, lock the final time.
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 →
Endpoint Security57
- 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 7 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability65
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1384 tokens (~197/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 Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage90
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 70% of tool parameters carry a description.Partial
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · whenna.com
claude mcp add --transport http com-whenna-whenna https://whenna.com/mcp
[mcp_servers.com-whenna-whenna] url = "https://whenna.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-whenna-whenna": {
"type": "remote",
"url": "https://whenna.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-whenna-whenna --url https://whenna.com/mcp --transport streamable-http
mcp_servers:
com-whenna-whenna:
url: "https://whenna.com/mcp" {
"mcpServers": {
"com-whenna-whenna": {
"type": "http",
"url": "https://whenna.com/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.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 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.
- 31 Jul 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
- 30 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Jul 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 Jul 26 59
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 3 Aug 2026 · Probed https://whenna.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=whenna.com | CN=WE1,O=Google Trust Services,C=US | 3 Jul 2026 | 1 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | ecfec1660b199ba40e37d11afa80d55b |
| SANs: whenna.com, *.whenna.com | ||||||
| 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 |
DNSSEC insecure
Validation of whenna.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| whenna.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 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://whenna.com/mcp | Verified | 200 | |
| http (plaintext) | http://whenna.com/mcp | HTTPS enforced | 301 | https://whenna.com/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.
whenna_best_times ~49
Ranked best meeting times for a plan: contiguous blocks where the most participants are free, with who is free in each block.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | — |
| top | integer | — | — |
No output schema declared.
No examples provided.
whenna_create_plan ~442
Create a Whenna plan (a shareable link that finds the time everyone is free). Returns the link to share with humans or other agents, and a creator_key that authorizes locking the final time. Times are wall-clock in the given IANA timezone. For a RECURRING plan ("every Tuesday"), pass weekday names in days (e.g. ["Tuesday"] or ["Tue","Thu"]) — the plan then has no dates and calendar events repeat weekly.
| Name | Type | Req | Description |
|---|---|---|---|
| days | array | yes | Candidate days: YYYY-MM-DD dates; OR weekday names (Mon…Sun) for weekly; OR ["daily"]; OR for monthly a single rule like ["15"] (day of month) or ["2nd Wednesday"] / ["last Friday"]. Do not mix forms. |
| end_hour | integer | yes | Latest hour to consider (1-24, exclusive) |
| every_weeks | integer | — | Repeat interval for recurring plans (with frequency: 2+weekly = every other week, 2+monthly = every other month, 3+daily = every 3 days) |
| frequency | string | — | How a recurring plan repeats. monthly requires days to be one rule: a day-of-month ("15") or an nth weekday ("2nd Wednesday", "last Friday"). Default weekly. |
| language | string | — | Optional 2-letter language for emails to notify_email (en es pt fr de it nl ru tr id hi ja ko zh ar). Default en. |
| location | string | — | Optional place ("Nonna's, 5th Ave") — shown on the plan and embedded in everyone's calendar event |
| notify_email | string | — | Optional creator email: gets an alert on the first answer, digests after, a "everyone's free" moment, and the lock confirmation. Every email has one-click unsubscribe. |
| slot_minutes | integer | — | Time-slot precision |
| start_hour | integer | yes | Earliest hour to consider (0-23) |
| timezone | string | — | IANA timezone, e.g. America/Chicago |
| title | string | yes | What the plan is, e.g. "Team dinner" |
No output schema declared.
No examples provided.
whenna_get_plan ~97
Fetch a Whenna plan: title, window, every participant's availability, ranked best times, the locked final time if set, and a negotiation brief — state (awaiting_answers | collecting | everyone_overlaps | locked), who has answered, and suggested_next_step telling an agent the best next move. Poll this between actions when coordinating.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Plan id (the part after /o/ in the link) |
No output schema declared.
No examples provided.
whenna_lock_time ~167
Lock the final time on a plan (requires the creator_key returned by whenna_create_plan). Pass use_best:true to lock the top-ranked best time automatically, or give an explicit day/start. Everyone viewing the link sees it as confirmed, with add-to-calendar buttons. Returns calendar links (Google, Outlook, .ics).
| Name | Type | Req | Description |
|---|---|---|---|
| creator_key | string | yes | — |
| day | string | — | YYYY-MM-DD date, or a weekday name for weekly plans (matching the plan's days) |
| id | string | yes | — |
| minutes | integer | — | Duration in minutes |
| start | string | — | Start time HH:MM (24h, plan timezone) |
| use_best | boolean | — | Lock the current #1 best time (most participants free); day/start not needed. |
No output schema declared.
No examples provided.
whenna_mark_availability ~159
Set a participant's free times on a plan (replaces that participant's previous answer). Express availability as free ranges per day; the server converts them to slots. Use the participant's human name so the group recognizes them. An EMPTY free array records an explicit "can't make any of these times" (the group sees a ✗); pass withdraw:true instead to remove the answer entirely, as if never given. The result reports any ranges that could not be applied and why.
| Name | Type | Req | Description |
|---|---|---|---|
| free | array | — | Free ranges. Empty array = explicit "can't make any". |
| id | string | yes | — |
| name | string | yes | Participant display name |
| withdraw | boolean | — | Remove this participant's answer entirely (ignores free). |
No output schema declared.
No examples provided.
whenna_plan_next ~131
Group memory: start the group's next plan from a finished one. Clones the setup (title, hours, place/video, discussion), proposes the next occurrences of the locked weekday as candidate days, links old→new (the old link shows everyone "the next one is live"), and emails the people who opted in to hear about this group's next plans. Requires creator_key. Returns the new plan and its own creator_key — keep it to lock the new time. Idempotent: if a successor already exists it is returned.
| Name | Type | Req | Description |
|---|---|---|---|
| creator_key | string | yes | — |
| id | string | yes | — |
No output schema declared.
No examples provided.
whenna_set_place ~122
Set where the group meets: a place name, or video_call:true to attach Whenna's built-in encrypted video room (the room link then goes on everyone's calendar automatically). Place and video room are mutually exclusive. Requires creator_key.
| Name | Type | Req | Description |
|---|---|---|---|
| creator_key | string | yes | — |
| id | string | yes | — |
| location | string | — | Place name, e.g. "Nonna's, 5th Ave". Empty string clears it. |
| video_call | boolean | — | true = meet on Whenna's encrypted video room instead of a physical place |
No output schema declared.
No examples provided.