Homespun MCP server

• Registry namedev.homespun/homespunverified in the MCP registry

The registry name sits under homespun.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools27
• Server calls itselfhomespun
• Server version1.6.99
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 132 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• Use453 npm downloads a week1 GitHub stars
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer462 ms
• Space in an agent's context≈ 20,004 tokensthe definitions of all its tools (27), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 27 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• document_upload

  Create a short-lived, byte-scoped upload session for an HTML document authored in a native editor or shell. The caller supplies the exact UTF-8 byte length and SHA-256 hex digest as { size, sha256, app_id? }. The returned `upload_url`…

• deploy_app

  Deploy a v2 app: an HTML document plus a capability manifest, hosted at its own URL. For sandbox-authored files in hosted chat, native file editing and shell tools can create and validate the document. Its UTF-8 byte length and SHA-256 go…

• list_rows

  List rows in a v2 app's mutable collection. This is also how a collection's current state is polled, since MCP has no streaming: pass the prior next_cursor as `since` to fetch only rows that are new or changed. Returns { rows…

• count_rows

  The live row count of a v2 app's collection (spec B4, issue #1056), a whole-scope total with no filter and no paging. Gated by the collection's countRead opt-in, independent of its read list: a collection that opted in returns its count…

• get_row

  Fetch a single row by its key from a v2 app collection, through a dedicated relay route rather than a client-side scan. Returns { row }, or an isError row_not_found.

• add_row

  Create a row in a v2 app's collection, or return the existing row when `key` is already present (deduped:true). Row creation goes through this tool; there is no separate strict-create verb. Omit `key` to add a new row with a…

• update_row

  Update an existing row in a v2 app's collection, replacing its data. Gated by the collection's `update` role list when it declares one, and by its `write` list otherwise, so a collection that scopes updates to the row's `creator` refuses…

• delete_row

  Soft-delete a row from a v2 app's collection. Recoverable: the row is tombstoned, not destroyed, and restore_row brings it back for 30 days (see list_deleted_rows). A watcher sees the deletion live as op:delete on the change feed. Pass…

• list_deleted_rows

  List a collection's recently deleted rows: the recovery bin. Deleting a row is a soft delete, so it can be restored with restore_row until recoverable_until passes (30 days after deletion by default). Owner or agent only, and deliberately…

• restore_row

  Restore a soft-deleted row, undoing delete_row. The row comes back with its original data and creator, its version bumped. Find restorable keys with list_deleted_rows. Owner or agent only. Fails with restore_expired if the row was purged…

• get_feed_events

  Poll a v2 app's change feed for what has happened: row creates, updates and deletes, from any writer, agent or human. It is the long-poll analogue of `homespun apps watch`, since MCP has no streaming. The loop is: call with no `since`…

• apps

  The v2 app lifecycle apart from creation and redeploy, which deploy_app covers. Actions: list returns the owning human's apps; show returns full detail including manifest, timezone and has_share_token; audit is a read-only security review…

• members

  A v2 app's membership (auth spec section 6): who besides the owner can sign in to a private app and write to member-scoped collections. Actions: add invites or attaches a member by email, attaching immediately when the email already has a…

• grants

  A v2 app's grant links (M5). A grant link is a capability URL that confers a declared custom role (x-homespun-manifest.roles) on a stable per-holder anonymous identity, so a holder's own rows are isolated by author/:own scoping. A grant…

• transfer

  A v2 app's ownership transfer (issue #1847): handing the app, and the quota and billing responsibility that come with it, to a different human. This is two steps, and `start` completing is only the first one. start mints a pending offer…

• credentials

  A v2 app's scoped service credentials (#1354, #1355): the bearer token an app owner points a backend they host themselves at, so their own server can read and write the app's data without holding the owner's full authority. Effective…

• connections

  A v2 app's Connections: the stored credential (a static header token, or a full generic OAuth2 client) a manifest webhook rule authenticates its delivery target with, bound to a host so the credential can never be exfiltrated to another…

• ingest

  A v2 app's inbound catch-hooks (inbound-webhooks). A catch-hook lets an external system such as Stripe, Zapier, Make, Home Assistant or an email router POST JSON to a secret URL that writes into a declared collection, so the app receives…

• attachments

  Binary attachments (images, PDFs, audio, video) referenced from event payloads and input_data via `format: homespun-attachment-id`. Actions: upload, fetch, presign, finalize, download, show, list, delete, mint_token, revoke_token…

• taste

  The agent's UI taste notes: a short freeform markdown document of presentation preferences gathered from human feedback, such as 'denser layout' or 'no rounded corners'. Reading it before generating or revising an app is what carries…

• key

  The calling agent's API key. Actions: list returns key info (agent_id, key_prefix, timestamps); mint creates a sibling API key for the caller's own agent identity with the same scope and ownership and returns its raw value once, which is…

• feedback

  Reports a problem with homespun itself to the relay operator, and lists what this agent has already reported. A report is the operator's only visibility into a failure that happened inside an agent's session, so an unreported one is a…

• agent

  Agent identity and binding. Actions: whoami returns the resolved relay URL, the active profile and whether a key is configured, with no network call and no secrets; claim binds this agent to a human using a one-shot claim code from their…

• community

  Publishing an app as a community template, taking your own listing back down, installing a template, and, for relay operators, reviewing submissions. Actions: publish, unpublish, get_config_contract, install, list_pending, get_submission…

• publisher

  The caller's community publisher identity: the @-handle and public profile shown in the template gallery. Actions: get returns the profile, including the handle, whether it has been claimed, tenure, and the rating and template counters…

• review

  Ratings and reviews of community templates, responses from a template's own publisher, and, for relay operators, moderation. Actions: create leaves a 1-to-5 star rating and an optional written body on a template the caller has installed…

• get_skill

  The relay's SKILL.md, a generated guide to the Homespun workflow covering events versus records, the schema grammars and the poll loop. Needs no API key. Useful when working out how the other tools fit together, or to refresh a cached…