kair-os.trade
Find up to five exploratory Base USDC x402 services for a task and budget, using a refreshed partial Coinbase/PayAI catalogue, Jev advertised relevance and freshly observed matching 402 prices. Returning non-robot payer counts and service fulfillment remain unknown; these suggestions do not establish a best service.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0x2A40…DcA2F. The signed payment is good for 5 minutes.
- Paid to
- 0x2A40…DcA2F
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2A40C1E882e511e363Fb5EdA842Ac4Cb50cDcA2F",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"besoin": "Check whether a Base token can be bought and sold, with effective transfer taxes.",
"budget_usdc": "0.02"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"status": "ok",
"rankBasis": "advertised_relevance_and_observed_price",
"recommendations": [
{
"url": "https://kair-os.trade/token-verdict/verdict",
"method": "POST",
"price_usdc": "0.02",
"probeMethod": "POST",
"methodEvidence": "bazaar_challenge",
"nonRobotPayers": null,
"returningPayers": null,
"usageQualityVerified": false
}
],
"usageQualityVerified": false
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"besoin",
"budget_usdc"
],
"properties": {
"besoin": {
"type": "string",
"maxLength": 1200,
"minLength": 1
},
"budget_usdc": {
"anyOf": [
{
"type": "string",
"pattern": "^(0|[1-9][0-9]{0,17})(\\.[0-9]{1,6})?$"
},
{
"type": "number",
"minimum": 0
}
],
"description": "Maximum price per suggested service, in USDC; at most six decimal places."
}
},
"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"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-26 06:06Z
- Last indexed by Roundhouse
- 2026-10-26 15:10Z
- Last enriched (probe, favicon, geo)
- —
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- Not probed
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service kair-os.trade and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=kair-os.trade' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://kair-os.trade/x402-recommend/recommend, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.