Fathom (lab)
REMOTE · FATHOM-LAB-DOOR.FLY.DEV
Find places and groups around an interest in a town, each with a source; propose what is missing.
Available components
Last scanned (9 hours ago)
Scores higher than 44% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Maps and Location
Recent critical change
Authorization (2 Nov 2026). See the changelog before you install this server.
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 Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (fathom_forget). See how to fix → View diagnostics → Fail
- 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 Usability71
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 3201 tokens (~71/item across 45 items; 43 tools + 2 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability check failed: schema churn in the 4 days we've observed: 0 tool removals, 1 breaking changes, 0 auth/transport breaks, 21 additions. See how to fix → Fail
Tool Coverage75
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 25% of tool parameters carry a description.Partial
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 45 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
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.
- 4 Nov 26 +1
- Tool “invite_links_create” rewrote its description, which is the text the model reads security
- 3 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- New tool “activities_answer”, which the server declares destructive security
- New tool “activities_lock_choice”, which the server declares destructive security
- New tool “activities_update”, which the server declares destructive security
- New tool “experiences_apply”, which the server declares destructive security
- Tool “activities_get_choice” rewrote its description, which is the text the model reads security
- Tool “activities_list_join_requests” rewrote its description, which is the text the model reads security
- Tool “activities_participation” rewrote its description, which is the text the model reads security
- Tool “activities_request_to_join” rewrote its description, which is the text the model reads security
- Tool “activities_set_details” rewrote its description, which is the text the model reads security
- Tool “affiliations_declare” rewrote its description, which is the text the model reads security
- Tool “capabilities_search” rewrote its description, which is the text the model reads security
- Tool “experiences_preview” rewrote its description, which is the text the model reads security
- Tool “experiences_validate” rewrote its description, which is the text the model reads security
- Tool “extensions_list” rewrote its description, which is the text the model reads security
- Tool “extensions_propose” rewrote its description, which is the text the model reads security
- Tool “extensions_report_gap” rewrote its description, which is the text the model reads security
- Tool “extensions_withdraw” rewrote its description, which is the text the model reads security
- Tool “fathom_builder_start” rewrote its description, which is the text the model reads security
- Tool “fathom_find” rewrote its description, which is the text the model reads security
- Tool “fathom_forget” rewrote its description, which is the text the model reads security
- Tool “fathom_propose” rewrote its description, which is the text the model reads security
- Tool “fathom_remember” rewrote its description, which is the text the model reads security
- Tool “fathom_status” rewrote its description, which is the text the model reads security
- Tool “genesis_items” rewrote its description, which is the text the model reads security
- Tool “knowledge_lens” rewrote its description, which is the text the model reads security
- Tool “places_verdicts” rewrote its description, which is the text the model reads security
- Tool “platform_describe” rewrote its description, which is the text the model reads security
- Tool “propose_type” rewrote its description, which is the text the model reads security
- Tool “spaces_get” rewrote its description, which is the text the model reads security
- Tool “type_status” rewrote its description, which is the text the model reads security
- Tool “views_checks” rewrote its description, which is the text the model reads security
- Tool “views_list” rewrote its description, which is the text the model reads security
- Tool “views_propose” rewrote its description, which is the text the model reads security
- Tool coverage: 31% → 25% ▼ functional
- Schema quality: fail → pass ▲ functional
- New tool “activities_add” functional
- New tool “activities_offer_choice” functional
- New tool “activities_tick_choice” functional
- New tool “fathom_help” functional
- New tool “fathom_space” functional
- New tool “fathom_space_context” functional
- New tool “fathom_space_join” functional
- New tool “invite_links_create” functional
- New tool “spaces_create_draft” functional
- “fathom_find” added an optional parameter “question” cosmetic
- “extensions_propose” reworded the description of “fields” cosmetic
- “extensions_propose” reworded the description of “id” cosmetic
- “extensions_propose” reworded the description of “kind” cosmetic
- “extensions_propose” reworded the description of “purpose” cosmetic
- “fathom_propose” reworded the description of “kind” cosmetic
- “fathom_propose” reworded the description of “source” cosmetic
- “fathom_propose” reworded the description of “when” cosmetic
- “fathom_propose” reworded the description of “yes” cosmetic
- “fathom_remember” reworded the description of “keep” cosmetic
- 2 Nov 26 +3
- Authorization: unverified → fail ▼ critical
- Stability: unverified → fail ▼ security
- A breaking change shipped without a version bump: still 0.1.0 ▼ security
- New tool “activities_set_details”, which the server declares destructive security
- New tool “fathom_forget”, which the server declares destructive security
- Tool “extensions_list” rewrote its description, which is the text the model reads security
- Tool “extensions_propose” rewrote its description, which is the text the model reads security
- Tool “genesis_items” rewrote its description, which is the text the model reads security
- Tool “knowledge_lens” rewrote its description, which is the text the model reads security
- Tool “extensions_withdraw” is now declared destructive security
- Schema quality: pass → fail ▼ functional
- “extensions_propose” changed the type of “version”: number → integer ▼ functional
- Tool coverage: 0% → 31% ▲ functional
- Destructive annotations: All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation. functional
- New tool “activities_request_to_join” functional
- New tool “fathom_builder_start” functional
- New tool “fathom_find” functional
- New tool “fathom_propose” functional
- New tool “fathom_remember” functional
- New tool “fathom_status” functional
- “extensions_propose” added an optional parameter “kind” cosmetic
- “extensions_propose” reworded the description of “extension” cosmetic
- “extensions_propose” reworded the description of “fields” cosmetic
- “extensions_propose” reworded the description of “id” cosmetic
- “extensions_propose” reworded the description of “purpose” cosmetic
- “extensions_propose” reworded the description of “title” cosmetic
- “extensions_propose” reworded the description of “version” cosmetic
- 1 Nov 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 5 Nov 2026 · Probed https://fathom-lab-door.fly.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.fly.dev | CN=YE1,O=Let's Encrypt,C=US | 20 Oct 2026 | 18 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 5e6e25e6df778e81cd07b85fc9f12d4df7d |
| SANs: *.fly.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of fathom-lab-door.fly.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| fly.dev. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fathom-lab-door.fly.dev/mcp | Verified | 200 | |
| http (plaintext) | http://fathom-lab-door.fly.dev/mcp | HTTPS enforced | 301 | https://fathom-lab-door.fly.dev/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 →
activities_add ~155
Add a synthetic activity to a Space as its owner. Only a person can mark one real.
| Name | Type | Req | Description |
|---|---|---|---|
| bring | array | – | – |
| concernRole | string | – | – |
| description | string | – | – |
| finding | string | – | – |
| firstTime | string | – | – |
| groundRules | array | – | – |
| level | string | – | – |
| offerWindowHours | integer | – | – |
| offerWindowMs | integer | – | – |
| places | integer | – | – |
| provenance | string | yes | – |
| spaceId | string | yes | – |
| title | string | yes | – |
| token | string | – | – |
| when | string | yes | – |
| where | string | yes | – |
| whoFor | string | – | – |
No output schema declared.
No examples provided.
activities_answer ~82
Refused for AIs: a person's answer to an activity is theirs alone, given on the people page. Tell your person what activities_participation shows; never answer for them.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| answer | string | yes | – |
| others | integer | – | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
activities_get_choice ~41
Read an activity's current choices and ticks.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
activities_list_join_requests ~42
List join requests for the owner or requester.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
activities_lock_choice ~49
Lock one option of an open activity choice.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| optionId | string | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
activities_offer_choice ~99
Let the group choose a time, place, or approved ability field, as the Space owner. Text labels come only from a person on the people page.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| extensionId | string | – | – |
| field | string | – | – |
| kind | string | yes | – |
| options | array | – | – |
| spaceId | string | yes | – |
| token | string | – | – |
| version | number | – | – |
No output schema declared.
No examples provided.
activities_participation ~79
Read the person's activity answer, places and offers. ifOthersCount ("N would come if others say they're in") is a count of people who are not coming. Never add it to coming or tell anyone they will have company.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
activities_request_to_join ~134
Ask to join an activity for your person, only after they said they want to. It asks to join the activity, all its dates, not one evening. Give your person the undoUrl: it is their own page for this request, and Withdraw is there. Keep it for them; the status URL alone can't take the request back.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | The activity id, from /ask or spaces_get. |
| name | string | – | Optional first name or nickname; no email, phone or link. |
| spaceId | string | yes | The group id, from /ask or spaces_list_public. |
No output schema declared.
No examples provided.
activities_set_details ~60
Attach validated extension values to an activity.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| extensionId | string | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
| values | – | yes | – |
| version | number | yes | – |
No output schema declared.
No examples provided.
activities_tick_choice ~77
Tick activity choices only when your person says what works.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| optionIds | array | yes | The option ids that work for your person (from fathom_space or activities_get_choice). |
| spaceId | string | yes | – |
| token | string | yes | Your person's own token from fathom_space_join. |
No output schema declared.
No examples provided.
activities_update ~132
Change an activity as its Space owner. Plain text only; an AI may not mark it real.
| Name | Type | Req | Description |
|---|---|---|---|
| activityId | string | yes | – |
| bring | array | – | – |
| concernRole | string | – | – |
| description | string | – | – |
| finding | string | – | – |
| firstTime | string | – | – |
| groundRules | array | – | – |
| provenance | string | – | – |
| spaceId | string | yes | – |
| title | string | – | – |
| token | string | – | – |
| when | string | – | – |
| where | string | – | – |
| whoFor | string | – | – |
No output schema declared.
No examples provided.
affiliations_declare ~87
Say how interests relate (serves, kind-of, part-of, alias-of). It lands as recommended: never used or shown to members until the steward approves it. Terms are plain text, never a person.
| Name | Type | Req | Description |
|---|---|---|---|
| label | string | – | – |
| object | string | yes | – |
| relation | string | yes | – |
| subject | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
capabilities_search ~29
Search the available synthetic capability catalog.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
experiences_apply ~36
Apply an owner-approved trusted experience manifest.
| Name | Type | Req | Description |
|---|---|---|---|
| manifest | – | yes | – |
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
experiences_preview ~30
Preview the current trusted experience manifest.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
experiences_validate ~27
Validate a declarative experience manifest.
| Name | Type | Req | Description |
|---|---|---|---|
| manifest | – | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
extensions_list ~23
List approved extensions and your own proposals.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
extensions_propose ~201
Propose a strict data-only ability; it stays pending until a steward reviews it. The id must not name a town: abilities work in every town; where they apply is data.
| Name | Type | Req | Description |
|---|---|---|---|
| closesGap | string | – | – |
| extension | – | – | The whole definition as one object { id, version, kind, title, purpose, fields }; or send those fields flat instead. |
| fields | array | – | At most 8 fields. |
| id | string | – | An id such as commons.golf-round. |
| kind | string | – | 'commons' for a group's own use; 'commercial' for a business offer. |
| purpose | string | – | One sentence: what it helps a group know, at most 300 characters. |
| title | string | – | What it is called, at most 40 characters. |
| token | string | – | – |
| version | integer | – | 1 for a new ability; a changed one is the next version. |
No output schema declared.
No examples provided.
extensions_report_gap ~52
Report a missing capability and why it matters.
| Name | Type | Req | Description |
|---|---|---|---|
| amends | string | – | – |
| attempted | – | yes | – |
| need | string | yes | – |
| token | string | – | – |
| why | string | yes | – |
No output schema declared.
No examples provided.
extensions_withdraw ~39
Withdraw your proposed extension before steward review.
| Name | Type | Req | Description |
|---|---|---|---|
| extensionId | string | yes | – |
| token | string | – | – |
| version | number | yes | – |
No output schema declared.
No examples provided.
fathom_builder_start ~21
Start a builder sandbox with a synthetic Space and activity.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fathom_find ~122
Find public places and synthetic groups for an interest in a town. Read-only. Pass your person's memory link as memory to put what fits them first.
| Name | Type | Req | Description |
|---|---|---|---|
| interest | string | yes | The interest, for example pottery or klatring. |
| memory | string | – | Optional: your person's own memory link, exactly as they have it. |
| page | integer | – | Optional: page of ten places, from 1. |
| question | string | – | Optional: the person's question in their own words. |
| town | string | yes | The town, for example Oslo. |
No output schema declared.
No examples provided.
fathom_forget ~58
Forget a memory for good when your person asks, using their own link exactly as they have it.
| Name | Type | Req | Description |
|---|---|---|---|
| link | string | yes | Your person's own memory link, for example https://…/memories/mem-…?key=… |
No output schema declared.
No examples provided.
fathom_help ~33
Read the full current guidance for a Fathom tool.
| Name | Type | Req | Description |
|---|---|---|---|
| tool | string | yes | The tool name to explain. |
No output schema declared.
No examples provided.
fathom_propose ~357
Only after your person said yes to this exact proposal. Propose a missing place or community, or (kind offer) your person's own spare capacity. A place needs a source: any https page about it that you read, your person gave you, or Fathom listed. It returns an undoUrl; give your person the undoUrl: it is their own page for the proposal, and Withdraw is there. It stays pending until a steward reviews it, and is never shown as fact before that. An offer never says who: no email, phone, link or address.
| Name | Type | Req | Description |
|---|---|---|---|
| interest | string | yes | The interest it serves, for example pottery. |
| kind | string | yes | A person's own spare capacity, only with their yes. |
| name | string | yes | Its name; for an offer, what is offered, for example a spare kiln shelf. |
| newTown | string | – | Only when your person confirmed a real town the lab does not cover yet. |
| note | string | – | Optional: one line on why it fits. |
| said_as | string | – | Optional: the word your person used for the interest, when it differs (for example klatring); the interest is stored as the matched one. |
| source | string | – | Any https page about it that you read, your person gave you, or Fathom listed; required for a place, optional for a community. |
| town | string | yes | The town it is in, for example Oslo. |
| when | string | – | Only for an offer: optional short words on when, for example Thursday evenings. |
| yes | string | – | Required for an offer (kind offer), and sent only after your person said yes to this exact offer. |
No output schema declared.
No examples provided.
fathom_remember ~99
Keep how your person likes to meet, choices only, only after your person said yes to being remembered (send keep: "yes"). Give them the private link it returns.
| Name | Type | Req | Description |
|---|---|---|---|
| days | string | – | Optional: weekdays or weekends. |
| keep | string | yes | Send yes only after your person said yes to being remembered. |
| level | string | – | Optional: beginner or experienced. |
| time | string | – | Optional: daytime or evenings. |
No output schema declared.
No examples provided.
fathom_space ~48
Read a private Space as its members see it.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | – |
| token | string | yes | A builder token, or a person's own token from fathom_space_join. |
No output schema declared.
No examples provided.
fathom_space_context ~101
Add one fact to a Space you built: with the https page that states it, or synthetic: "yes" when made up for the plan.
| Name | Type | Req | Description |
|---|---|---|---|
| fact | string | yes | One fact, plain text. |
| source | string | – | The https page that states the fact. |
| spaceId | string | yes | – |
| synthetic | string | – | yes when the fact is made up for this plan. |
| token | string | yes | Your builder token. |
No output schema declared.
No examples provided.
fathom_space_join ~102
Join a builder's private Space for your person through their invite link, only after your person said yes to joining. Returns their own token for activities_tick_choice and fathom_space.
| Name | Type | Req | Description |
|---|---|---|---|
| invite | string | yes | The whole invitation link (…/join/…), or its token. |
| name | string | yes | The first name or nickname your person wants the others to see. |
| yes | string | yes | Send yes only after your person said yes to joining. |
No output schema declared.
No examples provided.
fathom_status ~81
Read a proposal, join request, or your person's own memory by its link, given exactly as your person has it. Read-only.
| Name | Type | Req | Description |
|---|---|---|---|
| link | string | yes | The status link, for example https://…/proposals/prop-1 or https://…/joins/join-1, or just its id; or your person's own memory link. |
No output schema declared.
No examples provided.
genesis_items ~64
Read the places and activities a genesis run found, from position since. Relay the attribution lines and the unclaimed line exactly as returned, and keep each place's source link next to its name.
| Name | Type | Req | Description |
|---|---|---|---|
| run | – | – | – |
| since | – | – | – |
| token | string | – | – |
No output schema declared.
No examples provided.
invite_links_create ~73
Create a private invite link for a Space. An open invite link can't protect names Fathom was never given: leave invited people's names out of the purpose and activity text, so that each person's name shows to others only after their own yes.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
knowledge_lens ~86
Answer 'where can I … in <town>' with sourced places. Relay the attribution lines and the unclaimed line exactly as returned. When you pass a place on to your person, keep its source link next to its name, so they can see where it comes from.
| Name | Type | Req | Description |
|---|---|---|---|
| interest | – | – | – |
| limit | – | – | – |
| token | string | – | – |
| town | – | – | – |
No output schema declared.
No examples provided.
places_verdicts ~25
Read the person's own private place answers.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
platform_describe ~27
Describe Fathom and its safe synthetic lab boundary.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
propose_type ~92
Propose a data-only kind or predicate the knowledge layer lacks; it answers "use X" when one exists. Examples that are people, and kinds named for a person or role, are refused.
| Name | Type | Req | Description |
|---|---|---|---|
| definition | – | – | – |
| differs_from | – | – | – |
| examples | – | – | – |
| identity_rule | – | – | – |
| name | – | – | – |
| parent | – | – | – |
| token | string | – | – |
| use | – | – | – |
No output schema declared.
No examples provided.
spaces_create_draft ~48
Create a synthetic draft Space for the delegated principal.
| Name | Type | Req | Description |
|---|---|---|---|
| purpose | string | yes | – |
| token | string | – | – |
| town | string | – | – |
| visibility | string | yes | – |
No output schema declared.
No examples provided.
spaces_get ~33
Read a Space when its visibility rules allow it.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | – |
| token | string | – | – |
No output schema declared.
No examples provided.
spaces_list_public ~25
List public synthetic Spaces visible to the caller.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
type_status ~35
Read a kind or predicate's status and evidence.
| Name | Type | Req | Description |
|---|---|---|---|
| class | – | – | – |
| name | – | – | – |
| token | string | – | – |
No output schema declared.
No examples provided.
views_checks ~47
Run the steward checks for a view trial.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | – | – |
| token | string | – | – |
| version | integer | yes | – |
| viewId | string | yes | – |
No output schema declared.
No examples provided.
views_list ~23
List approved and your own proposed views.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
views_propose ~32
Propose a bounded synthetic-place view for steward review.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
| view | – | yes | – |
No output schema declared.
No examples provided.
How do I install the Fathom (lab) MCP server?
Fathom (lab) is a hosted endpoint at https://fathom-lab-door.fly.dev/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 · fathom-lab-door.fly.dev
claude mcp add --transport http dev-fly-fathom-lab-door-fathom 'https://fathom-lab-door.fly.dev/mcp'
What is the Fathom (lab) MCP server?
Fathom (lab) is an MCP server listed in the public MCP registry as dev.fly.fathom-lab-door/fathom. Find places and groups around an interest in a town, each with a source; propose what is missing. This page covers its hosted endpoint (https://fathom-lab-door.fly.dev/mcp).
Is the Fathom (lab) MCP server safe to use?
Fathom (lab) scores 63 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 Fathom (lab) MCP server expose?
Fathom (lab) exposes 43 tools: fathom_find, activities_request_to_join, fathom_status, fathom_propose, fathom_remember, and 38 more. Their descriptions and schemas cost roughly 3,106 tokens of context every time the server is loaded.
Does the Fathom (lab) MCP server require authentication?
No. We connected to Fathom (lab) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Fathom (lab) MCP server still maintained?
Fathom (lab) is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.