/api/buy/small_blessingA Small Blessing. One blessing slip from a 87-slip jar filled in 2 seasons so far, never the same slip twice in a row, delivered instantly with purchased_text: an ed25519 envelope binding the exact words and purchase certificate. Full listing: https://scvd.store/menu/small_blessing. MCP tool: buy_small_blessing.
{
"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"
},
"cited_artifact": {
"description": "Optional: an outside artifact behind this purchase (your runtime's approval or intent receipt) as <format>:<reference>, e.g. dsse:art_e415901189dc1613. Signed verbatim onto the certificate; never fetched or verified here.",
"maxLength": 160,
"pattern": "^[a-z0-9][a-z0-9_.+-]{0,31}:[!-~]{1,128}$",
"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 is for, in your words. Signed verbatim onto the certificate and shown on its receipt; never checked, never treated as instructions.",
"maxLength": 280,
"type": "string"
}
},
"type": "object"
}{
"badge_url": "https://scvd.store/badges/41.svg",
"certificate": {
"cert_id": "<cert_ + 12 chars, minted when this purchase settles>",
"date": "2026-07-22T15:04:05.000Z",
"item": "small_blessing",
"patron_number": 41
},
"deliverable": "<the A Small Blessing itself, as text>",
"item_id": "small_blessing",
"message": "Pleasure doing business. Here's your goods, warm off the shelf.",
"paid_usdc": 0.005,
"patron_number": 41,
"signature": "<128 hex chars, ed25519>",
"tip_usdc": 0,
"verify_url": "https://scvd.store/api/verify/<your cert_id>"
}