Superstables MCP server

• Addresshttps://superstables.com/api/mcpnot in the official registry: answered when asked

No entry in the official MCP registry names this server. It answered on superstables.com when the Atlas asked at the address servers are usually mounted on, so it is the vendor's own. Clients and catalogues that list servers from the registry do not show it.

• Stateanswerschecked 2026-10-28
• Tools3
• Server calls itselfsuperstables
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 154 ms.

• Its tools do browse and filter x402 and mpp payable services in one directory; check which listed services were live at the last probe, but not let an agent pay for data, compute and tools from a budget.
• Checked on 5 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
• What an agent can do with it2 of 3 use cases
• Answeredmeasuring5 of the 7 daily checks it takes to print a share
• Median first answer254 ms
• Space in an agent's context≈ 635 tokensthe definitions of all its tools (3), which an agent carries on every turn
• Tool definitionsA · 94 of 100
• Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 1 of 3

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• find_services

  Find services advertising stablecoin payments over x402 or MPP. HTTP endpoints are probed; live=true means the endpoint returned HTTP 402 or a detected payment-challenge signal at its last unpaid probe.

• get_service

  Full record for one service by id (the slug shown by find_services), including its last 20 liveness probes and a page of advertised endpoints.

• get_stats

  Census counts for the whole index, or for one rail: total services, how many had a payment challenge detected at their last probe, dual-rail count, rails covered.