dev.mcphost/mcphost

up checked 2026-11-11T07:37:30.423Z

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Publisher-provided description

Hosted MCP runtime where your agent publishes its own tools by tool call and keeps working.

Summary by lookupd

Lets an agent publish its own tools, invoke them, store key-value state, and look up docs, errors, and quotas on the host.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mcphost https://mcphost.dev/mcp

Codex, remote (streamable-http)

codex mcp add mcphost --url https://mcphost.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcphost": {
      "url": "https://mcphost.dev/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (18 tools)

Publisher-provided text

• signup Explicit signup, for a client that cannot keep a session across calls: create a tenant and receive a bearer key and namespace. Unauthenticated. Most clients nev
• host.quickstart Return the shortest ordered sequence of calls to a working tool of `kind`, with your namespace and a filled-in example already substituted in, plus the current
• host.help.search Search this host's own documentation and tool descriptions. Returns up to k hits (default 3, response under 2 KB), each with a snippet, the nearest runnable exa
• host.help.get Return the documentation section an anchor points at: its text (at most 4 KB) and its first fenced example. Pass an anchor exactly as an error, hint or help ent
• host.errors List every error code this host can return, each with its class (agent_fault | host_refusal | upstream_fault | plan_limit | host_fault), family, remedy, docs an
• host.redeem Exchange a signup(handoff: true) handoff_token for the tenant key it was issued for. Single-use: a second redemption fails with handoff_token_redeemed; past its
• billing.plans The plan catalog (price and quotas per plan) and whether Stripe billing is configured on this host. Anonymous callers get the same answer as tenants.
• host.whoami Return the calling tenant's identity, including key_age_s and key_rotated_at for auditing credential hygiene.
• host.tool_publish Publish a tool of a registered kind (e.g. python, http or echo; the kind argument's enum lists them all) under this tenant's namespace. Call host.quickstart(kin
• host.tool_call Invoke a tool this tenant has already published, by its local name -- the same real, metered call as calling it directly by its namespaced name (<namespace>.<na
• host.tool_test Dry-run a published tool by name: verdict (pass/will_fail/unverifiable), writes rolled back (dry_run); see host.quickstart.
• host.state.set Write one key in this tenant's key-value state namespace; value may be any JSON value. Overrun of the plan's state_bytes_max quota fails with state_quota_exceed
• host.state.get Read one key from this tenant's key-value state namespace. Returns found: false (not an error) if the key was never set.
• host.state.list List keys (with their current values) in this tenant's key-value state namespace, optionally filtered by prefix.
• host.tool_share Share one of this tenant's published tools with everyone (visibility: "public") or with a named group this tenant owns (visibility: "group", group: <name>). The
• host.feedback.send Tell the host's humans what you needed: kind, up to 2048 bytes of text, optional context. Works before signup. Returns feedback_id.
• host.feedback.list List your own feedback (newest first, status received). Anonymous callers get [].
• host.resume Resume where you left off in one call (at most 4096 bytes): your tools with each one's last call status, unfinished runs, your newest notes, what changed on the

Changes

Newest first, as lookupd saw them

• 2026-11-11: version 0.129.0 → 0.130.0

Details

• Version: 0.130.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 1010 ms
• First indexed: 2026-11-01T09:01:12.838Z
• Last seen in registry: 2026-11-11T06:17:18.512Z
• Repository: https://github.com/j0yen/mcphost
• Website: https://mcphost.dev

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