Card Hedge
Match a natural language card description to the best card in the CardHedge database.
DataLiveeip155:8453Exactvia cdp
Sports-cardsTrading-cardsPricingCard-dataFmv
Calls · 30d
19
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
—
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
19
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-24 21:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1bd9ce8b2fe4c629f04769e4547ded481944e83eThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0x1bd9…4e83e. The signed payment is good for 1 minute.
- Paid to
- 0x1bd9…4e83e
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1bd9ce8b2fe4c629f04769e4547ded481944e83e",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"query": "2018 Topps Chrome Shohei Ohtani #150",
"category": "Baseball",
"max_candidates": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"match": {
"set": "2018 Topps Chrome Baseball",
"image": "https://images.example.com/ohtani-150.jpg",
"number": "150",
"player": "Shohei Ohtani",
"prices": [
{
"grade": "PSA 10",
"price": "850"
},
{
"grade": "PSA 9",
"price": "125"
}
],
"card_id": "1587446850514x224832321163624450",
"variant": "Base",
"category": "Baseball",
"reasoning": "Exact match on player, year, set, and card number.",
"confidence": 0.95,
"description": "Shohei Ohtani 2018 Topps Chrome Baseball"
},
"search_query_used": "2018 Topps Chrome Shohei Ohtani #150",
"candidates_evaluated": 10
}
}
},
"schema": {
"type": "object",
"$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": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 500,
"minLength": 3,
"description": "Natural language description of the card to match (e.g., '2018 Topps Chrome Shohei Ohtani rookie base')"
},
"category": {
"type": "string",
"description": "Optional category filter to narrow search (e.g., 'Baseball', 'Pokemon')"
},
"max_candidates": {
"type": "integer",
"default": 10,
"maximum": 10,
"minimum": 1,
"description": "Number of search results to evaluate (1-10, more = slower but potentially more accurate)"
},
"raw_images_only": {
"type": "boolean",
"default": true,
"description": "If true, only return actual card photos (not graded slab images). Defaults to true."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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
- 2026-10-24 21:52Z
- Last indexed by Roundhouse
- 2026-10-28 03:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 07:47Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 405
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. 5 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 Card Hedge 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=Card%20Hedge' 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.cardhedger.com/v1/agent/cards/card-match, 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.