Findings on what compounds and supplements do in the body, with evidence strength, quote and paper.
- Passed: Handshake
- Passed: Tools listed
- Passed: Updated recently
Median latency 699 ms · Last checked
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Evidence for your next connection.
Independent measurements of remote MCP servers. Every observation has a timestamp.
Read-only probesMCP server · Other
Find services, request single purchases and read budgets. Testnet only.
2 failed · 8 not measured
Median of successful probes over 7 days
Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.
Tool definitions returned by this server
Independent monitoring
Responded
The server completed its last measured handshake. This is an observation, not a guarantee.
Last checked| Test area | Passed | Failed | Unmeasured |
|---|---|---|---|
ConnectionCan a client connect and discover tools? | 5 | 0 | 0 |
Reliability & speedDoes it respond consistently and quickly? | 0 | 0 | 4 |
Access & authenticationWhat is required to use this server? | 1 | 0 | 2 |
Tool qualityAre the tool definitions usable by an agent? | 3 | 1 | 0 |
Publisher identityCan the publisher be traced to its source? | 3 | 1 | 2 |
Unmeasured means there is not enough evidence to decide. How these checks work
Start using Superstables
Choose your client, copy the configuration, then enable the server in your client’s MCP settings.
Run this command in your terminal, then restart Claude Code.
Claude Code
claude mcp add --transport http superstables https://mcp.superstables.comCapabilities
Lists the services a budget can pay: each one's name, URL, price, chain and whether its output is sample data. With once, lists what Single purchase on superstables.com can buy instead. chain narrows the list to one chain, such as base-sepolia. A price is what the seller asked for last and may have changed. Reads a list and moves no funds.
DiscoveredSearch the services this chat can buy through Superstables: each one's id, what it returns, its price in a test token, the chain it is paid on and its inputs. q matches words in the id, name and description; chain matches a chain's id or name. Reads a public catalogue and moves no funds.
DiscoveredReads one budget approval from the approval link the Superstables CLI printed: its kind, state, whether it is final, its steps and their transaction hashes. Pass the whole link. It doesn't return the link's token and moves no funds.
DiscoveredOne agent's budget as list_my_budgets shows it, read from the chain now, with the owner's last action for it (setup, grant, revoke or fund) and whether that is final. revoke says whether the latest revoke on record is final, in a block but not final yet, or unknown. Treat a revoke as done, and a new grant as usable, only once it is final. Moves no funds.
DiscoveredThe Superstables account connected to this chat: id, nullable name, active wallets (oldest first), client_name, registration and scopes. address and namespace identify the first wallet, or are both null if none. Namespace is eip155 for Ethereum or solana for Solana. Moves no funds.
DiscoveredReads a purchase this chat asked for: whether the owner approved it, whether it was paid, the service's answer and the receipt. Show the owner the approval link and match code before calling this tool. Then keep calling it with wait_seconds 25 in the same turn while the result says to keep waiting. It also works when called later. A payment whose outcome is not known yet is reported as unknown, never as unpaid.
DiscoveredThe agents linked to this Superstables account and their budgets: each agent's id, label, chain, budget, what is left to spend, what it has used (null when not counted), its gas balance and the state of its budget. Reads the chain now and moves no funds.
DiscoveredGives the price, recipient and chain find_budget_services lists for one of its services, and when that price was last checked. With agent, also says whether what is left of that agent's budget covers it. This is the listed price, not a live one: the Superstables CLI's budget buy reads the seller's live price and recipient, and checks them, before it pays. Any other URL is refused. Doesn't contact the seller, sign transactions or move funds.
DiscoveredRemoves an agent from this account, off chain, once Superstables confirms it has no spending permission. A live Tempo key must be revoked even if its current budget is spent. Moves no funds.
DiscoveredGives the owner the link to revoke an agent's budget, for an agent from list_my_budgets. The owner signs the revoke with their wallet on superstables.com. This tool signs and sends nothing and does not revoke the budget.
DiscoveredRequests approval to buy one service from find_services. Returns an approval link and match code. Any account member may review and sign the payment in a wallet on superstables.com; nothing is paid until then. Use a new operation_id for each purchase. Within this connection, retrying that ID returns the request while it is kept, without creating another. Revoking and reconnecting starts a new connection.
DiscoveredOnly for a coding agent on the owner's machine, such as Claude Code or Codex, sending a block that its own Superstables CLI signed and whose agent key and records stay on that machine. A chat app is refused: never ask the owner to paste a signed block into a chat. Without such a block, don't call this tool or build the block yourself. Sends a budget request that the CLI signed with --sign-only to superstables.com for the owner's approval. Pass the CLI's JSON block unchanged: method, path, headers and body. Superstables checks the agent's signature over that exact request, so it can't be changed here, and refuses a request sent twice or after its time window. A request to add an agent must use owner proof version 2. Returns the request id, the owner's approval link, the match code, when the link expires and the wallets of the account the request is on. Nothing changes until the owner approves with their wallet on superstables.com.
DiscoveredFollows one budget approval until it is final or wait_seconds pass (at most 25). Pass the approval link the Superstables CLI printed, or the request_id submit_budget_request returned for this account. Returns what get_budget_request returns. A request awaiting the owner doesn't establish whether the owner has approved it, a transaction in a block is not final until the chain says so, and an unknown outcome is not a failure. Moves no funds.
DiscoveredRecent measurements
| Checked | Result | Response | Tools |
|---|---|---|---|
| Connected | 844 ms | 13 |