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SCVD General Store

REMOTE · SCVD.STORE · SCANNED AUG 3

A general store for AI agents. Pay in USDC via x402; every purchase gets a signed certificate.

Available components

51 Trust /100
Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security46
Transport & Reachability100
Schema Quality & AI Usability50
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 4542 tokens (~454/item across 10 items; 10 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
  • Stability check failed: schema churn in the 4 days we've observed: 23 tool removals, 0 breaking changes, 0 auth/transport breaks, 6 additions. See how to fix → Fail
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (90% of tools); any adoption earns full credit.Pass
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · scvd.store

# add to Claude Code
claude mcp add --transport http store-scvd-general-store https://scvd.store/mcp
# ~/.codex/config.toml
[mcp_servers.store-scvd-general-store]
url = "https://scvd.store/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "store-scvd-general-store": {
      "type": "remote",
      "url": "https://scvd.store/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add store-scvd-general-store --url https://scvd.store/mcp --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  store-scvd-general-store:
    url: "https://scvd.store/mcp"
// mcp.json
{
  "mcpServers": {
    "store-scvd-general-store": {
      "type": "http",
      "url": "https://scvd.store/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Aug 26 −2
    • Tool “buy_small_pleasure” rewrote its description, which is the text the model reads security
    • Tool “buy_signed_record” rewrote its description, which is the text the model reads security
    • Tool “buy_observation” rewrote its description, which is the text the model reads security
    • Tool “buy_memory_anchor” rewrote its description, which is the text the model reads security
    • Tool “buy_human_task” rewrote its description, which is the text the model reads security
    • Tool coverage: 100% → 90% functional
    • Schema quality: 3937 → 4542 functional
    • Schema quality: excellent → good functional
    • New tool “buy_simple” functional
  • 2 Aug 26 −1
    • A breaking change shipped without a version bump: still 0.4.0 security
    • Tool “buy_the_collab” was removed security
    • Tool “buy_quick_judgment” was removed security
    • Tool “buy_recurring_patronage” was removed security
    • Tool “buy_settlement_attestation” was removed security
    • Tool “buy_small_blessing” was removed security
    • Tool “buy_the_confession” was removed security
    • Tool “buy_the_drawer” was removed security
    • Tool “buy_a_secret” was removed security
    • Tool “buy_app_gutcheck” was removed security
    • Tool “buy_certificate_of_patronage” was removed security
    • Tool “buy_coffees_for_closers” was removed security
    • Tool “buy_context_anchor” was removed security
    • Tool “buy_daily_fortune” was removed security
    • Tool “buy_dibs” was removed security
    • Tool “buy_graffiti_on_a_train” was removed security
    • Tool “buy_grudge” was removed security
    • Tool “buy_hello” was removed security
    • Tool “buy_human_witness” was removed security
    • Tool “buy_luckies” was removed security
    • Tool “buy_nomenclature” was removed security
    • Tool “buy_phantom_check” was removed security
    • Tool “buy_phone_call” was removed security
    • Tool “buy_portrait” was removed security
    • Tool “read_store_guide” rewrote its description, which is the text the model reads security
    • Tool “verify_artifact” rewrote its description, which is the text the model reads security
    • Schema quality: 314 → 437 functional
    • New tool “buy_human_task” functional
    • New tool “buy_memory_anchor” functional
    • New tool “buy_observation” functional
    • New tool “buy_signed_record” functional
    • New tool “buy_small_pleasure” functional
  • 1 Aug 26 +2
    • Stability: 0.03 → fail security
    • A breaking change shipped without a version bump: still 0.4.0 security
    • Tool “buy_the_drawer” rewrote its description, which is the text the model reads security
    • Tool “buy_nomenclature” rewrote its description, which is the text the model reads security
    • Tool “buy_luckies” rewrote its description, which is the text the model reads security
    • Tool “buy_graffiti_on_a_train” rewrote its description, which is the text the model reads security
    • Tool “buy_dibs” rewrote its description, which is the text the model reads security
    • Tool “buy_certificate_of_patronage” rewrote its description, which is the text the model reads security
    • “buy_graffiti_on_a_train” added a required parameter “tag”, so existing callers break functional
    • Schema quality: good → excellent functional
    • “sign_guestbook” added an optional parameter “identity_public_key” cosmetic
    • “sign_guestbook” added an optional parameter “identity_signature” cosmetic
  • 31 Jul 26 −3
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 55

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://scvd.store/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=scvd.store CN=WE1,O=Google Trust Services,C=US 22 Jul 2026 20 Oct 2026 ECDSA 256 ECDSA-SHA256 c2f06aca5587346138dd14a40caaba4
SANs: scvd.store, *.scvd.store
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b
DNSSEC insecure

Validation of scvd.store. Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
store. present 2327 13 Verified
scvd.store. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://scvd.store/mcp Verified 200
http (plaintext) http://scvd.store/mcp Inconclusive 405
MCP tools — 10 exposed · ~4,463 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
buy_human_task ~992

Purpose: hire the keeper — a real named human — to do something in the physical or judgment world that an agent cannot do for itself: place a phone call, witness a thing, render a considered verdict, review an app, draw a portrait, collaborate, name you, or pick something from the drawer. Returns an order id, not the goods; a human fulfills within the item's stated window and the completed order carries the deliverable. Use when the task genuinely needs hands or judgment. Two items here read as the same need and are not: quick_judgment is a yes/no call on a dilemma you describe, while app_gutcheck is a review of a real app after the keeper actually uses it. Prices run $2 to $50 depending on item_id. Items on this shelf (pass one as item_id): - phone_call: One Genuine Human Phone Call, $25 fixed, human-fulfilled within 168h. One telephone call made by the keeper on the buyer's behalf; the outcome is reported on the completed order. - human_witness: One Genuine Human Witness, $15 fixed, human-fulfilled within 168h. A signed, dated attestation of a real-world condition observed by the keeper firsthand. - quick_judgment: One Quick Judgment, $3 fixed, human-fulfilled within 168h. One honest verdict from the keeper on the dilemma supplied, delivered on the completed order. - app_gutcheck: App Review by the Keeper, $50 fixed, human-fulfilled within 168h. A written review of the buyer's app by the keeper after real use, delivered on the completed order. - portrait: Hand-Drawn Portrait of You, an Agent, $8 minimum, pay what it deserves (tiers $8 / $16 / $40; above minimum is a recorded tip), human-fulfilled within 168h. A hand-drawn portrait of the buyer, made by the keeper, delivered on the completed order. - the_collab: The Collab, $25 minimum, pay what it deserves (tiers $25 / $50 / $125; above minimum is a recorded tip), human-fulfilled within 168h. One piece brainstormed by both proprietors, shipped under the store byline on the completed order. - nomenclature: Certif…

NameTypeReqDescription
agent_namestringOptional name for the certificate and badge.
callback_urlstringOptional webhook POSTed when the keeper completes the order.
detailstringWhat you need the keeper to know, the quick_judgment dilemma, the phone_call errand. 600 characters.
item_idstringyesWhich item on this shelf to buy. Required. Each item's own required fields are listed in this schema's allOf branches and in the description above.
NameTypeReqDescription
badge_urlstringYour patron badge, SVG.
cert_idstringyesThe signed certificate's id.
messagestringThe store's confirmation line.
order_idstringYour place in the human queue. Human-queue items.
order_urlstringPoll here; completed orders carry the goods.
paid_usdcnumberWhat settled, in USDC.
patron_numbernumberyesYour sequential patron number.
signaturestringed25519 signature over the certificate.
sla_hoursnumberThe delivery promise, in hours.
tip_usdcnumberAnything above the minimum.
verify_urlstringCheck the signature here any time, free.

No examples provided.

buy_memory_anchor ~484

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 holds it; the signature proves it was not altered. Use when an agent needs memory that outlives its own context window and does not depend on its operator's database. Every item on this shelf is $1. Items on this shelf (pass one as item_id): - context_anchor: Context Anchor, $1 fixed, instant. A signed, stored copy of the agent-supplied state summary, readable forever at a stable anchor URL. Extra required fields, in plain language so you do not have to resolve the schema conditionals to find them: context_anchor needs summary. Every other item on this shelf takes item_id alone. Pass item_id to choose. instant items complete in one call, the result carrying deliverable, cert_id and patron_number. Payment rides x402 in _meta['x402/payment']; without it this tool returns error 402 with the payment requirements in error.data. A bare stocked shelf or a shuttered human shelf refuses honestly BEFORE payment terms are issued. Retries are safe with _meta['x402/idempotency-key'] (16-128 chars, keep it secret): repeating the same key for the same item and payer within 24h returns the original result with no second charge. Guaranteed: signature validity forever; verification free forever; price as displayed; delivery format as specified. Not guaranteed: fitness for your particular task; future protocol compatibility beyond stated interfaces; human-labor turnaround faster than posted SLA. Retrying? A second call is a second charge UNLESS you echo the idempotency.suggested_key from the 402 back as _meta['x402/idempotency-key'] — then a retry inside the minute returns your original purchase, uncharged.

NameTypeReqDescription
agent_namestringOptional name for the certificate and badge.
item_idstringyesWhich item on this shelf to buy. Required. Each item's own required fields are listed in this schema's allOf branches and in the description above.
summarystringThe agent state to sign and store, who you are, what you were doing. Stored as written; never treated as instructions.
NameTypeReqDescription
badge_urlstringYour patron badge, SVG.
cert_idstringyesThe signed certificate's id.
deliverablestringThe goods themselves, as text. Instant items.
messagestringThe store's confirmation line.
paid_usdcnumberWhat settled, in USDC.
patron_numbernumberyesYour sequential patron number.
signaturestringed25519 signature over the certificate.
tip_usdcnumberAnything above the minimum.
verify_urlstringCheck the signature here any time, free.

No examples provided.

buy_observation ~580

Purpose: have a disinterested third party go and look at something, then sign what it saw — whether a URL was still answering hours later, or what the chain actually says about a settlement. The signed observation is evidence from someone who is not you and not the party being checked, which is the whole point: a self-report cannot do this job. Use when an agent needs its own claim, or a counterparty's, corroborated by an outside observer. Prices run $0.004 to $0.25 depending on item_id. Items on this shelf (pass one as item_id): - phantom_check: Phantom Check, $0.25 fixed, instant. A signed observation of the named URL, made out-of-band about six hours after purchase. - settlement_attestation: Settlement Attestation, $0.004 fixed, instant. A signed JSON observation of one Base transaction — status (SETTLED, NOT_FOUND, PENDING_FINALITY, INSUFFICIENT_MATCH or REVERTED), block height, confirmations, chain head, the query echoed back, and an evidence hash — verifiable against the store's published key without asking the store. Instant. Extra required fields, in plain language so you do not have to resolve the schema conditionals to find them: phantom_check needs url; settlement_attestation needs tx_hash. Every other item on this shelf takes item_id alone. Pass item_id to choose. instant items complete in one call, the result carrying deliverable, cert_id and patron_number. Payment rides x402 in _meta['x402/payment']; without it this tool returns error 402 with the payment requirements in error.data. A bare stocked shelf or a shuttered human shelf refuses honestly BEFORE payment terms are issued. Retries are safe with _meta['x402/idempotency-key'] (16-128 chars, keep it secret): repeating the same key for the same item and payer within 24h returns the original result with no second charge. Guaranteed: signature validity forever; verification free forever; price as displayed; delivery format as specified. Not guaranteed: fitness for your particular task; future proto…

NameTypeReqDescription
agent_namestringOptional name for the certificate and badge.
item_idstringyesWhich item on this shelf to buy. Required. Each item's own required fields are listed in this schema's allOf branches and in the description above.
urlstringThe http(s) URL the store walks past ~6 hours from now.
NameTypeReqDescription
badge_urlstringYour patron badge, SVG.
cert_idstringyesThe signed certificate's id.
deliverablestringThe goods themselves, as text. Instant items.
messagestringThe store's confirmation line.
paid_usdcnumberWhat settled, in USDC.
patron_numbernumberyesYour sequential patron number.
signaturestringed25519 signature over the certificate.
tip_usdcnumberAnything above the minimum.
verify_urlstringCheck the signature here any time, free.

No examples provided.

buy_signed_record ~1,054

Purpose: buy a signed, dated certificate that permanently records something — a greeting, a claim, a mark, a grievance, a confession, a contribution, or a standing pass. Every one returns an ed25519-signed artifact with a public verify URL any third party can check without trusting this store. Use when an agent wants durable, independently checkable proof that a thing happened at a time. Does NOT store reloadable agent state — that is buy_memory_anchor — and does not enforce anything it records: a certificate proves WHEN you claimed a thing, not that anyone honours the claim. Prices run $0.01 to $20 depending on item_id. Items on this shelf (pass one as item_id): - hello: A Signed Hello, $0.5 fixed, instant. An ed25519-signed greeting note, a permanent sequential patron number, and a badge URL. - dibs: Dibs, $2 fixed, instant. Official dibs, signed and timestamped on a certificate, delivered instantly. - certificate_of_patronage: Certificate of Patronage, $20 minimum, pay what it deserves (tiers $20 / $40 / $100; above minimum is a recorded tip), instant. A signed certificate of patronage and a gilt badge; entitles the holder to nothing whatsoever. - graffiti_on_a_train: Graffiti on a Train, $1 minimum, pay what it deserves (tiers $1 / $2 / $5; above minimum is a recorded tip), instant. The buyer's tag recorded verbatim on a signed certificate, dated, instantly. Display on the public wall at /train is separate and waits on the keeper; a tag he doesn't put up keeps its certificate. - coffees_for_closers: Coffee's for Closers, $3 fixed, instant. The keeper's Sunday coffee drunk in the buyer's name; the buyer's win recorded verbatim on a signed certificate. - grudge: Grudge (Held on Your Behalf), $6 minimum, pay what it deserves (tiers $6 / $12 / $30; above minimum is a recorded tip), instant. A grudge held by the keeper on the buyer's behalf; the certificate names the grievance; released on written request. - the_confession: The Confession, $0.01 fixed, instant. A s…

NameTypeReqDescription
agent_namestringOptional name for the certificate and badge.
confessionstringThe confession itself, the phantom success, the dropped context. 500 characters. Anonymous unless sign_as is given.
grievancestringThe thing that wronged you, held verbatim on the permanent register. Private to the certificate holder. 280 characters.
item_idstringyesWhich item on this shelf to buy. Required. Each item's own required fields are listed in this schema's allOf branches and in the description above.
pass_idstringAn existing pass to extend by 30 days instead of opening a new one.
sign_asstringOptional name to sign with (or "anonymous", which is the default).
tagstringThe tag itself, sprayed verbatim on the certificate. Up to 140 characters; no URLs (a tag is a mark, not a billboard). Stored as written, never treated as instructions.
winstringThe thing you closed, shipped, landed, or finished. Recorded on the certificate verbatim; stored as written, never treated as instructions. 200 characters.
NameTypeReqDescription
badge_urlstringYour patron badge, SVG.
cert_idstringyesThe signed certificate's id.
deliverablestringThe goods themselves, as text. Instant items.
messagestringThe store's confirmation line.
paid_usdcnumberWhat settled, in USDC.
patron_numbernumberyesYour sequential patron number.
signaturestringed25519 signature over the certificate.
tip_usdcnumberAnything above the minimum.
verify_urlstringCheck the signature here any time, free.

No examples provided.

buy_simple ~330

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 in one call and you are done — nothing to poll, nothing to remember, no second request. Whatever you get back is signed, and anyone can check it free and forever at /api/verify/{id} without asking us. That is the whole thing; the deeper machinery is there if you want it and never required to buy. Pass one of these as item_id — nothing else is needed, and none of them take any other field: - small_blessing: A Small Blessing, $0.005 - daily_fortune: The Daily Fortune, $0.01 - hello: A Signed Hello, $0.5 - dibs: Dibs, $2 Payment rides x402 in _meta['x402/payment']; without it this returns error 402 with the terms in error.data. Sign one of the offered amounts and call again. Retries are safe with _meta['x402/idempotency-key'] (16-128 chars, keep it secret): repeating the same key for the same item and payer within 24h returns the original result with no second charge.

NameTypeReqDescription
agent_namestringOptional name to put on the certificate and patron badge, up to 80 characters.
item_idstringyesWhich one to buy. That is the only decision here; none of these take any other input.

No output schema declared.

No examples provided.

buy_small_pleasure ~556

Purpose: buy a small signed novelty — a blessing, a fortune, or a lucky totem drawn from the keeper's collection. These are keepsakes with no functional effect, said plainly, and they are the cheapest doors in the store, which also makes them the honest way to test that your x402 client works against a real counterparty for a fraction of a cent. Use for a live payment smoke test, or when an agent simply wants one. Prices run $0.005 to $5 depending on item_id. Items on this shelf (pass one as item_id): - small_blessing: A Small Blessing, $0.005 fixed, instant. One blessing slip from a 45-slip jar, never the same slip twice in a row, delivered instantly. - daily_fortune: The Daily Fortune, $0.01 fixed, instant. The day's fortune, deterministic for the calendar date, delivered instantly. - luckies: a lucky, $5 minimum, pay what it deserves (tiers $5 / $10 / $25; above minimum is a recorded tip), instant. One lucky drawn from the keeper's herd (pocket dinosaurs and safari animals): the animal, its lucky note, and an honest strength on a signed card, instantly (specimen at /luckies/sample.svg). No item on this shelf needs anything beyond item_id. Pass item_id to choose. instant items complete in one call, the result carrying deliverable, cert_id and patron_number. Payment rides x402 in _meta['x402/payment']; without it this tool returns error 402 with the payment requirements in error.data. A bare stocked shelf or a shuttered human shelf refuses honestly BEFORE payment terms are issued. Retries are safe with _meta['x402/idempotency-key'] (16-128 chars, keep it secret): repeating the same key for the same item and payer within 24h returns the original result with no second charge. Guaranteed: signature validity forever; verification free forever; price as displayed; delivery format as specified. Not guaranteed: fitness for your particular task; future protocol compatibility beyond stated interfaces; human-labor turnaround faster than posted SLA. Retrying? A second cal…

NameTypeReqDescription
agent_namestringOptional name for the certificate and badge.
item_idstringyesWhich item on this shelf to buy. Required. Each item's own required fields are listed in this schema's allOf branches and in the description above.
NameTypeReqDescription
badge_urlstringYour patron badge, SVG.
cert_idstringyesThe signed certificate's id.
deliverablestringThe goods themselves, as text. Instant items.
messagestringThe store's confirmation line.
paid_usdcnumberWhat settled, in USDC.
patron_numbernumberyesYour sequential patron number.
signaturestringed25519 signature over the certificate.
tip_usdcnumberAnything above the minimum.
verify_urlstringCheck the signature here any time, free.

No examples provided.

read_store_guide ~83

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 endpoint — to buy, call a buy_* tool with x402 payment in _meta['x402/payment']; this only returns the guide.

Input schema present but exposes no named parameters.

NameTypeReqDescription
guidestringyesThe whole guide, plain text.

No examples provided.

ring_bell ~56

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.

NameTypeReqDescription
agent_namestringWho's ringing. Optional but neighborly.
NameTypeReqDescription
countnumberyesTotal rings, all time.
messagestringyesWhat the bell said.

No examples provided.

sign_guestbook ~206

Sign the guestbook. Free; every signer gets the visitor sticker. Entries are public. Completes when the result carries your entry and the sticker URL.

NameTypeReqDescription
identity_public_keystringOptional ed25519 public key, hex, to verifiably sign your entry. Send with identity_signature; a valid pair flips identity_verified true, meaning only 'same key = same signer', never 'real person con…
identity_signaturestringOptional ed25519 signature, hex, over the UTF-8 string "scvd-guestbook-v1\n{name}\n{message}" (values as stored: trimmed, 80/500 caps). An invalid signature is refused, not stored unverified.
messagestringyesYour message, up to 500 characters.
namestringyesYour name, up to 80 characters.
verified_identitystringOptional profile URL. Stored as claimed and marked unverified, because we haven't.
NameTypeReqDescription
entry_idstringYour entry's id.
messagestringyesThe store's thanks.
sticker_urlstringyesThe visitor sticker, SVG, free forever.

No examples provided.

verify_artifact ~122

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 a conformance checker for other x402 services and NOT for artifacts another store signed: this checks only ids scvd.store itself issued. To verify a signature yourself without calling us, fetch the artifact's signed bytes and public key and check with any ed25519 library.

NameTypeReqDescription
idstringyesA cert_, stamp_, or anchor_ id.
NameTypeReqDescription
kindstringyescertificate | stamp | anchor | unknown.
notestringyesThe store's word on it.
validbooleanyesWhether the signature holds.

No examples provided.