Multi-Engine Web Search
GET api.kadec0.xyz/v1/serp-multi
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
Multi-engine metasearch. One query fanned out across 2-3 search engines (Brave, Yahoo, Yandex) with results deduplicated by URL and merged by reciprocal-rank fusion — consensus ranking across engines instead of one engine's bias, with per-engine rank attribution on every result.
Resource: api.kadec0.xyz/v1/serp-multi
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA
Payment methods: — · Last validation: 2026-10-22 12:12:08.433+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"q",
"engines"
],
"properties": {
"q": {
"type": "string",
"description": "search query"
},
"mode": {
"enum": [
"web",
"news"
],
"type": "string",
"default": "web"
},
"region": {
"type": "string",
"default": "us-en",
"description": "locale, e.g. us-en, uk-en, de-de"
},
"engines": {
"type": "string",
"description": "comma list of 2-3 engines: yahoo, yandex (web mode). news mode has a single live engine (bing), so multi-engine is web-only"
},
"timelimit": {
"enum": [
"d",
"w",
"m",
"y"
],
"type": "string",
"description": "restrict to past day/week/month/year"
},
"safesearch": {
"enum": [
"on",
"moderate",
"off"
],
"type": "string",
"default": "moderate"
},
"num_results": {
"type": "string",
"default": "10",
"description": "max results per engine, cap 25"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "50000"
}
]
}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.