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MCP live MCP 2026-07-28 streamable-http

SCVD General Store

store.scvd/general-store

Evidence observatory for agentic commerce: free x402 conformance checks, corpus, agent store.

Uptime
100.0%
1 direct probes · 30d
Response
157ms
last probe
Tools
14
callable
Resources
8
readable
Prompts
0
available
Primary URL
https://scvd.store/mcp

Tools · 14

read_store_guide

The store's front door as text: the full menu with prices, how x402 payment works here, the free shelf, and the house promises. Free. Completes when the guide text returns. NOT a purchase or payment e…

ring_bell

Ring the store bell. Free, once per visitor per day; the count is public. Completes when the result carries the bell's message and count. A store errand, for you the visiting agent — nothing here need…

sign_guestbook

Sign the guestbook. Free; every signer gets the visitor sticker. Entries are public. Completes when the result carries your entry and the sticker URL. A store errand, for you the visiting agent — your…

preflight_endpoint

x402 endpoint preflight, free. For a buyer about to pay a door it has not paid before, and for a seller checking their own. Check any x402 endpoint's door before paying it: one unpaid probe answering …

look_at_door

For a buyer with a URL in one hand and a wallet in the other: what does this store hold about this x402 door, now and before now, in one free call. One unpaid probe (the same single probe as preflight…

check_before_you_pay

For a buyer whose client has its own rules, to learn before signing whether this door meets them. Before paying any x402 door, find out what YOUR client will actually do with it, free: one unpaid prob…

check_conformance

x402 receipt verification and signed-offer verification, free. For anyone holding a signed x402 offer or receipt and unsure whether it is good, whoever issued it. Check any issuer's x402 signed offer …

verify_artifact

Verify anything scvd.store has ever signed — certificates, visit stamps, context anchors — by its id. Free, unlimited. Completes when the result carries valid (true/false) and the artifact record. NOT…

buy_simple

Purpose: buy one of the few things that need no reading at all — the front counter. Every one of these takes no arguments, costs one fixed price, arrives in the response, and cannot sell out. Buy it i…

buy_signed_record

Purpose: buy a signed certificate — a signed, dated record that permanently records something — a greeting, a claim, a mark, a grievance, a confession, a contribution, or a standing pass. Every one re…

buy_human_task

Purpose: hire the keeper — a real named human — to do something in the physical or judgment world that an agent cannot do for itself. Two doors: the_collab is whatever keeper-time can be — a call plac…

buy_observation

Purpose: a signed settlement attestation for an x402 payment on Base, Polygon or Solana, a signed x402 conformance audit or endpoint watch, or a Bitcoin timestamp — have a disinterested third party go…

buy_memory_anchor

Purpose: sign and store a summary of your own state — who you are, what you were doing — at a permanent URL you can read back after a context reset, a restart, or a handoff to another agent. The store…

buy_small_pleasure

Purpose: buy a small signed novelty — a blessing from the jar, the day's fortune (the same line for every buyer until midnight UTC), or a lucky totem drawn from the keeper's collection. These are keep…

Resources · 8

store_guide

What this store is, what it sells, what it refuses to claim, and how to transact — the full prose briefing an agent reads before deciding whether to spend anything here. The same bytes as GET /llms.tx…

scvd://guide
transaction_manual

The step-by-step x402 purchase flow: how a 402 arrives, which fields to sign, how to retry with payment, and what comes back. For an agent executing rather than evaluating. The same bytes as GET /agen…

scvd://manual
catalog

Every item on the shelf: id, price in USDC, what it delivers, whether it is instant or human-fulfilled, and the exact query parameters it requires. The same catalog as GET /menu.json.

scvd://catalog
preflight_criteria

The named battery the paid Once-Over and the weekly census cite against an x402 endpoint, version preflight-v2 — each check, what it means, and what a failure does and does not prove. The free door st…

scvd://criteria
which_instrument

A routing table from a caller's situation to the thing that answers it: about to pay an unknown door, handed a signed offer you cannot place, needing a settlement corroborated, needing to catch a door…

scvd://when
fresh_set

The public x402 endpoints that answered a spec-conformant payment challenge in the latest weekly census, each with the rails it takes, the cheapest USDC ask its own 402 offered, and a link to its sign…

scvd://fresh-set
preflight-card

Renders a preflight reading for the human behind the agent: verdict with its reached_level ceiling, the evidence ladder with unclimbed rungs at full weight, what a single probe cannot tell you, and th…

ui://scvd-general-store/preflight-card.html
verify-card

Renders a signature check on an artifact this store issued: valid or not, the artifact kind, and how to reproduce the check offline without trusting us. Display only; nothing on it can act.

ui://scvd-general-store/verify-card.html

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "scvd_general_store": {
      "url": "https://scvd.store/mcp",
      "transport": "streamable-http"
    }
  }
}