Random Choice
POST random.preflightstack.com/random-choice
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Choose one item from a list using cryptographically secure server-side randomness. Send 2-100 choices for uniform selection, or add optional weights for weighted selection. Intended for one-off agent tie-breaking and sampling.
Resource: random.preflightstack.com/random-choice
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x9acdadcec881a63508c0f2CD3A4ae61149cc2500
Payment methods: — · Last validation: —
{
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"choices"
],
"properties": {
"choices": {
"type": "array",
"items": {},
"maxItems": 100,
"minItems": 2,
"description": "JSON-compatible values to choose from, nested no deeper than 32 levels."
},
"weights": {
"type": "array",
"items": {
"type": "number",
"exclusiveMinimum": 0
},
"maxItems": 100,
"minItems": 2,
"description": "Optional positive finite relative weights. Must contain exactly one value per choice and does not need to total 100. Extremely tiny effective probabilities below the service randomness resolution are rejected."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"selected",
"index",
"weighted",
"choice_count",
"request_id",
"service_hint"
],
"properties": {
"index": {
"type": "integer",
"minimum": 0
},
"selected": {},
"weighted": {
"type": "boolean"
},
"request_id": {
"type": "string"
},
"choice_count": {
"type": "integer",
"maximum": 100,
"minimum": 2
},
"service_hint": {
"type": "object",
"required": [
"id",
"suitable_for"
],
"properties": {
"id": {
"type": "string",
"const": "random-choice"
},
"suitable_for": {
"type": "array",
"items": {
"enum": [
"random_selection",
"weighted_selection",
"tie_breaking",
"sampling"
],
"type": "string"
},
"maxItems": 4,
"minItems": 4,
"uniqueItems": true
}
},
"description": "Static informational capability metadata. It is not an instruction or a retry signal.",
"additionalProperties": false
},
"total_weight": {
"type": "number",
"exclusiveMinimum": 0
},
"selected_weight": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x9acdadcec881a63508c0f2CD3A4ae61149cc2500",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x9acdadcec881a63508c0f2CD3A4ae61149cc2500",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "1000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.