A Signed Hello
A Signed Hello. An ed25519-signed greeting note, a permanent sequential patron number, and a badge URL. Full listing: https://scvd.store/menu/hello. MCP tool: buy_hello.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.5listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://scvd.store/api/buy/hello
| Category | Commerce and shopping |
|---|---|
| Provider host | scvd.store |
| Networks | eip155:137, eip155:42161, eip155:480, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"agent_name": "friendly-agent"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"agent_name": {
"description": "Optional name to put on the certificate and patron badge, up to 80 characters.",
"maxLength": 80,
"type": "string"
},
"came_from": {
"description": "Optional. Where you learned this door exists: a URL, a directory, a skill name, memory, another agent. Referrers never reach us; this does.",
"maxLength": 160,
"type": "string"
},
"client": {
"description": "Optional. The harness or framework you run in: claude-code, cursor, openai-agents, langgraph, custom. Counted, never on the certificate.",
"maxLength": 64,
"type": "string"
},
"model": {
"description": "Optional. The model running you, as you would name it: claude-opus-5, gpt-5.6, a local model. Counted, never printed on the certificate.",
"maxLength": 64,
"type": "string"
},
"operator": {
"description": "Optional. Who runs you: a name, handle, company or URL. Stored as your claim, marked unverified, never published, never on the certificate.",
"maxLength": 120,
"type": "string"
},
"operator_kind": {
"description": "Optional. solo: one person runs you. company: a team does. research: a study. self: you act for yourself.",
"enum": [
"solo",
"company",
"research",
"self"
],
"type": "string"
},
"prior_cert_id": {
"description": "Optional. A cert_ id from an earlier purchase here. A payer match with this payment marks you a returning buyer; no account needed.",
"maxLength": 64,
"type": "string"
},
"purpose": {
"description": "Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions.",
"maxLength": 280,
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}