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Fathom (lab)

MCP serverVerified domain · fathom-lab-door.fly.devRemote● LiveFree to try

Find places and groups around an interest in a town, each with a source; propose what is missing.

Install

Remote server: your requests and data go to fathom-lab-door.fly.dev. Claude Code: claude mcp add --transport http fathom-lab https://fathom-lab-door.fly.dev/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do (first 40)

The tools this server listed when we connected to it, in its own words.

  • fathom_find — 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
  • activities_request_to_join — 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. Gi
  • fathom_status — Read a proposal, join request, or your person's own memory by its link, given exactly as your person has it. Read-only.
  • fathom_propose — Only after your person said yes to this exact proposal. Propose a missing place or community, or (kind offer) your person's own spare capaci
  • fathom_remember — Keep how your person likes to meet, choices only, only after your person said yes to being remembered (send keep: "yes"). Give them the priv
  • fathom_forget — Forget a memory for good when your person asks, using their own link exactly as they have it.
  • fathom_space_join — Join a builder's private Space for your person through their invite link, only after your person said yes to joining. Returns their own toke
  • fathom_space_context — Add one fact to a Space you built: with the https page that states it, or synthetic: "yes" when made up for the plan.
  • fathom_space — Read a private Space as its members see it.
  • fathom_builder_start — Start a builder sandbox with a synthetic Space and activity.
  • fathom_help — Read the full current guidance for a Fathom tool.
  • platform_describe — Describe Fathom and its safe synthetic lab boundary.
  • capabilities_search — Search the available synthetic capability catalog.
  • spaces_create_draft — Create a synthetic draft Space for the delegated principal.
  • spaces_get — Read a Space when its visibility rules allow it.
  • spaces_list_public — List public synthetic Spaces visible to the caller.
  • places_verdicts — Read the person's own private place answers.
  • affiliations_declare — Say how interests relate (serves, kind-of, part-of, alias-of). It lands as recommended: never used or shown to members until the steward app
  • genesis_items — Read the places and activities a genesis run found, from position since. Relay the attribution lines and the unclaimed line exactly as retur
  • knowledge_lens — Answer 'where can I … in <town>' with sourced places. Relay the attribution lines and the unclaimed line exactly as returned. When you pass
  • propose_type — Propose a data-only kind or predicate the knowledge layer lacks; it answers "use X" when one exists. Examples that are people, and kinds nam
  • type_status — Read a kind or predicate's status and evidence.
  • extensions_report_gap — Report a missing capability and why it matters.
  • extensions_propose — 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;
  • extensions_list — List approved extensions and your own proposals.
  • extensions_withdraw — Withdraw your proposed extension before steward review.
  • views_propose — Propose a bounded synthetic-place view for steward review.
  • views_checks — Run the steward checks for a view trial.
  • views_list — List approved and your own proposed views.
  • activities_set_details — Attach validated extension values to an activity.
  • activities_add — Add a synthetic activity to a Space as its owner. Only a person can mark one real.
  • activities_list_join_requests — List join requests for the owner or requester.
  • activities_answer — Refused for AIs: a person's answer to an activity is theirs alone, given on the people page. Tell your person what activities_participation
  • activities_participation — 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 n
  • activities_offer_choice — 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.
  • activities_get_choice — Read an activity's current choices and ticks.
  • activities_lock_choice — Lock one option of an open activity choice.
  • activities_update — Change an activity as its Space owner. Plain text only; an AI may not mark it real.
  • invite_links_create — 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 o
  • experiences_validate — Validate a declarative experience manifest.

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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