api.k-agentpay.com
Seoul concert trip pack, in Japanese (default), English or Korean (lang=ja|en|ko): concert detail, tickets incl. global sites, venue + map, nearby hotels/food/spots, same-week festivals, yen prices — ¥50
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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "payment required: send PAYMENT-SIGNATURE (x402 v2)",
"accepts": [
{
"asset": "0xe7c3d8c9a439fede00d2600032d5db0be71c3c29",
"extra": {
"name": "JPY Coin",
"version": "1",
"priceYen": 50,
"assetTransferMethod": "eip3009"
},
"payTo": "0x1738EA3df9EE26c65037C6AC75e088c351BAaEb9",
"amount": "50000000000000000000",
"scheme": "exact",
"network": "eip155:8217",
"maxTimeoutSeconds": 60
},
{
"asset": "0xd077a400968890eacc75cdc901f0356c943e4fdb",
"extra": {
"name": "Tether USD",
"note": "non-standard: payload { signature, permit: { owner, spender, value, nonce, deadline } }",
"spender": "0x6736Fc2460FE7ebBE0b752b9E9B8bE590C88B2E5",
"version": "1",
"priceUsd": 0.32,
"priceYen": 50,
"standard": false,
"assetTransferMethod": "eip2612"
},
"payTo": "0x1738EA3df9EE26c65037C6AC75e088c351BAaEb9",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8217",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"priceUsd": 0.32,
"priceYen": 50,
"assetTransferMethod": "eip3009"
},
"payTo": "0x12fd48d3931179514c89FcBA7296de52Df3ba540",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"tryFree": "No wallet? Try it free: RapidAPI free plan (100 calls/month) https://rapidapi.com/JBML/api/korea-travel-k-pop-live-data or the remote MCP https://api.k-agentpay.com/mcp (10 free live calls/day).",
"resource": {
"url": "https://api.k-agentpay.com/v1/seoul/trip-pack",
"mimeType": "application/json",
"description": "Seoul K-pop concert trip pack (travel planner): tickets and seat prices, venue map, nearest subway and last trains, live crowd and weather, hotels and food nearby, same-week festivals. English, Japanese or Korean (lang=en|ja|ko)"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"id": "PF303329",
"lang": "en"
}
},
"output": {
"type": "json",
"example": {
"lang": "en",
"areaNow": {},
"titleEn": "CRAVITY CONCERT: SONOROUS",
"gettingHome": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "concert id from /v1/kpop/search"
},
"lang": {
"enum": [
"ja",
"en",
"ko"
],
"type": "string",
"description": "response language"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x1738…AaEb9
- Token contract
- 0xe7c3…c3c29
- Payment window
- 1 minute
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x1738…AaEb9
- Token contract
- 0xd077…e4fdb
- Payment window
- 1 minute
Pay 0.32 USDC on Base to 0x12fd…ba540. The signed payment is good for 1 minute.
- Paid to
- 0x12fd…ba540
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 320000 smallest units
The catalog’s raw entry
[
{
"asset": "0xe7c3d8c9a439fede00d2600032d5db0be71c3c29",
"extra": {
"name": "JPY Coin",
"version": "1",
"priceYen": 50,
"assetTransferMethod": "eip3009"
},
"payTo": "0x1738EA3df9EE26c65037C6AC75e088c351BAaEb9",
"amount": "50000000000000000000",
"scheme": "exact",
"network": "eip155:8217",
"maxTimeoutSeconds": 60
},
{
"asset": "0xd077a400968890eacc75cdc901f0356c943e4fdb",
"extra": {
"name": "Tether USD",
"note": "non-standard: payload { signature, permit: { owner, spender, value, nonce, deadline } }",
"spender": "0x6736Fc2460FE7ebBE0b752b9E9B8bE590C88B2E5",
"version": "1",
"priceUsd": 0.32,
"priceYen": 50,
"standard": false,
"assetTransferMethod": "eip2612"
},
"payTo": "0x1738EA3df9EE26c65037C6AC75e088c351BAaEb9",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8217",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"priceUsd": 0.32,
"priceYen": 50,
"assetTransferMethod": "eip3009"
},
"payTo": "0x12fd48d3931179514c89FcBA7296de52Df3ba540",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"id": "PF303329",
"lang": "en"
}
},
"output": {
"type": "json",
"example": {
"lang": "en",
"areaNow": {},
"titleEn": "CRAVITY CONCERT: SONOROUS",
"gettingHome": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "concert id from /v1/kpop/search"
},
"lang": {
"enum": [
"ja",
"en",
"ko"
],
"type": "string",
"description": "response language"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-15 00:18Z
- Last indexed by Roundhouse
- 2026-10-26 17:50Z
- Last enriched (probe, favicon, geo)
- 2026-10-15 07:15Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 16 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.k-agentpay.com 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=api.k-agentpay.com' 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://api.k-agentpay.com/v1/seoul/trip-pack, 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.