Connect-MCP

dev.tmpstate/tmpstate

dev.tmpstate/tmpstate · v1.0.0

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

MCPremoteno credentialsDatabasesDocuments & PDF

Reported outcomes

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Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 16 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 81/100

What it does: 16 tools · 2 read, 8 write (incl. delete/pay) · Databases, Documents & PDF

No tool could be tested safely. Only read-only tools that need no input are called.

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +8
  • Read/write annotations: 0
  • Safe test call: +8
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://tmpstate.dev/mcp

Tools

16 tools listed at last check
  • 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

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