Tmpstate

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

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

16 tools

• 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…

• 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…

• 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…

• 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…

• 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…

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