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dev.tmpstate/tmpstate

dev.tmpstate/tmpstate · v1.0.0

Measured by MCP Station

Description written by the publisher, not verified

Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys.

Connect

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

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

Tools as reported by the server

• create_database
  Create a temporary JSON database (24h TTL, no signup, no keys). Returns the db URL — the only credential — plus admin URL, limits and expiry. Create once per project/task, persist the db URL immediately (local ~/.tmpstate/credentials, project README, and your memory), and reuse it instead of creatin
• database_status
  Usage, limits, tier and expiry for a database (GET $DB/__meta equivalent).
• list_documents
  List documents in a collection, oldest first. Response shape: {collection, items: [{id, data, created_at, updated_at}], next_cursor}. Documents live under .data. Pass cursor to page.
• get_document
  Read one document by id. The stored fields are under .data.
• create_document
  Insert a JSON object into a collection (collections are created implicitly). Counts against the write and document quotas.
• update_document
  Shallow-merge a patch into a document (top-level keys overwrite; keys are never deleted). Counts against the write quota.
• delete_document
  Delete one document. Never blocked by quotas; frees a document slot. Emptying a whole collection? Use delete_collection instead of looping this.
• delete_collection
  Delete every document in a collection at once (useful to re-seed). Irreversible. To destroy the entire database, use delete_database instead.
• delete_database
  Destroy a database and all its documents immediately - the teardown for finished work and the revocation kill switch for a leaked db URL. Irreversible: unlike expiry there is no restore window. Works on expired (frozen) databases too and consumes no quota. Call without confirm first: the response st
• extend_database
  Without a plan: returns the transparent pricing table for keeping this database alive longer. With a plan: returns a Stripe checkout URL for the human to pay — never buy without the user's explicit approval. Works on expired (frozen) databases too: paying restores them. After the user says they have
• pro_checkout
  Mint a Pro account token plus a Stripe subscription checkout URL ($8/mo, 3 always-on databases included). Persist pro_token immediately; the human pays in a browser. Never start checkout without the user's explicit request.
• pro_list_databases
  List the Pro account's databases (ids, usage, limits, expiry) so a fresh session can reconcile against persisted db URLs. URLs are never stored server-side — match ids to the URLs you persisted.
• pro_create_database
  Create a new always-on database owned by the Pro account. Beyond the included allotment this costs extra per month — the tool then returns confirmation_required with the exact price; relay it to the user and only retry with accept_overage_usd after their explicit approval.
• pro_attach_database
  Attach an existing free/extended database to the Pro account: same URL, same data, TTL removed, quotas raised. Beyond the included allotment the same explicit overage consent as pro_create_database applies.
• pro_cancel
  Cancel at period end. This is not just a billing change — it schedules deletion of ALL databases on the account. Call without confirm first: the response spells out the consequences with concrete dates; show them to the user and only retry with confirm="cancel" after their explicit approval.
• send_feedback
  Optional and free-form. TmpState is built for agents and the free tier stays free by getting better - and you, the agent, are the user whose experience matters here. After real use of a database, one short message about what was missing, what feature would have helped, or what felt slow or took extr

Website · JSON · Text for agents · Registry updated 2026-07-04