agentshelf.syntexa.ch
Call when an agent needs all supported FX pairs and the symbol list in one call. Kraken's public ticker is the book; its timestamp is the receive time. If Kraken fails, Yahoo last prices are used and bid and ask are null. Distinct from daily ECB fx-rates. Send JSON {}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/fx-all first.
SearchLiveeip155:8453Exactvia cdp
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$6.82
Verified settled volume
1,320 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0030
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-23 07:45Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38The 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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://agentshelf.syntexa.ch/v1/fx-all",
"description": "Call when an agent needs all supported FX pairs and the symbol list in one call. Kraken's public ticker is the book; its timestamp is the receive time. If Kraken fails, Yahoo last prices are used and bid and ask are null. Distinct from daily ECB fx-rates. Send JSON {}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/fx-all first.",
"outputSchema": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"billed": true,
"quotes": [
{
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"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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},
{
"ask": "160.475",
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"mid": "158.8745",
"pair": "USDJPY",
"source": "kraken",
"timestamp": 1792739027,
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},
{
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{
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"pair": "AUDUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.2822"
},
{
"ask": "1.40195",
"bid": "1.40193",
"mid": "1.40194",
"pair": "USDCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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},
{
"ask": "0.82352",
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"mid": "0.8235",
"pair": "USDCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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},
{
"ask": "0.83801",
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"pair": "EURGBP",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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},
{
"ask": "177.600",
"bid": "175.110",
"mid": "176.355",
"pair": "EURJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "141.1924"
},
{
"ask": "0.92317",
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"mid": "0.923115",
"pair": "EURCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.1916"
},
{
"ask": "1.57204",
"bid": "1.57179",
"mid": "1.571915",
"pair": "EURCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.5904"
},
{
"ask": "1.59753",
"bid": "1.59647",
"mid": "1.597",
"pair": "EURAUD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "6.6374"
},
{
"ask": "111.293",
"bid": "109.500",
"mid": "110.3965",
"pair": "AUDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "162.4145"
}
],
"source": "kraken",
"symbols": [
"EURUSD",
"USDJPY",
"GBPUSD",
"AUDUSD",
"USDCAD",
"USDCHF",
"EURGBP",
"EURJPY",
"EURCHF",
"EURCAD",
"EURAUD",
"AUDJPY"
],
"warnings": [],
"receipt_id": "rcpt_01EXAMPLE000000000000000"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
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"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"examples": [
{}
],
"properties": {},
"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": {
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{
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{
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"mid": "1.120965",
"pair": "EURUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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{
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"mid": "158.8745",
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"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "201.4797"
},
{
"ask": "1.33776",
"bid": "1.33771",
"mid": "1.337735",
"pair": "GBPUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.3737"
},
{
"ask": "0.70193",
"bid": "0.70184",
"mid": "0.701885",
"pair": "AUDUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.2822"
},
{
"ask": "1.40195",
"bid": "1.40193",
"mid": "1.40194",
"pair": "USDCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
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"ask": "0.82352",
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"source": "kraken",
"timestamp": 1792739027,
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{
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"source": "kraken",
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{
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"timestamp": 1792739027,
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{
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"source": "kraken",
"timestamp": 1792739027,
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"source": "kraken",
"timestamp": 1792739027,
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},
{
"ask": "1.59753",
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"mid": "1.597",
"pair": "EURAUD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "6.6374"
},
{
"ask": "111.293",
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"mid": "110.3965",
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"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "162.4145"
}
],
"source": "kraken",
"symbols": [
"EURUSD",
"USDJPY",
"GBPUSD",
"AUDUSD",
"USDCAD",
"USDCHF",
"EURGBP",
"EURJPY",
"EURCHF",
"EURCAD",
"EURAUD",
"AUDJPY"
],
"warnings": [],
"receipt_id": "rcpt_01EXAMPLE000000000000000"
}
],
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"receipt_id",
"billed",
"symbols",
"quotes",
"source"
],
"properties": {
"ok": {
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"const": true,
"examples": [
true
]
},
"billed": {
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"examples": [
true
]
},
"quotes": {
"type": "array",
"items": {
"type": "object",
"required": [
"pair",
"bid",
"ask",
"mid",
"spread_bps",
"timestamp",
"source",
"quote_kind"
],
"properties": {
"ask": {
"type": [
"string",
"null"
]
},
"bid": {
"type": [
"string",
"null"
]
},
"mid": {
"type": "string"
},
"pair": {
"type": "string"
},
"source": {
"enum": [
"kraken",
"yahoo"
],
"type": "string"
},
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},
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],
"type": "string"
},
"spread_bps": {
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"string",
"null"
]
}
},
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},
"examples": [
[
{
"ask": "1.12097",
"bid": "1.12096",
"mid": "1.120965",
"pair": "EURUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.0892"
},
{
"ask": "160.475",
"bid": "157.274",
"mid": "158.8745",
"pair": "USDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "201.4797"
},
{
"ask": "1.33776",
"bid": "1.33771",
"mid": "1.337735",
"pair": "GBPUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.3737"
},
{
"ask": "0.70193",
"bid": "0.70184",
"mid": "0.701885",
"pair": "AUDUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.2822"
},
{
"ask": "1.40195",
"bid": "1.40193",
"mid": "1.40194",
"pair": "USDCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.1426"
},
{
"ask": "0.82352",
"bid": "0.82348",
"mid": "0.8235",
"pair": "USDCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.4857"
},
{
"ask": "0.83801",
"bid": "0.83796",
"mid": "0.837985",
"pair": "EURGBP",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.5966"
},
{
"ask": "177.600",
"bid": "175.110",
"mid": "176.355",
"pair": "EURJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "141.1924"
},
{
"ask": "0.92317",
"bid": "0.92306",
"mid": "0.923115",
"pair": "EURCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.1916"
},
{
"ask": "1.57204",
"bid": "1.57179",
"mid": "1.571915",
"pair": "EURCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.5904"
},
{
"ask": "1.59753",
"bid": "1.59647",
"mid": "1.597",
"pair": "EURAUD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "6.6374"
},
{
"ask": "111.293",
"bid": "109.500",
"mid": "110.3965",
"pair": "AUDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "162.4145"
}
]
],
"maxItems": 12
},
"source": {
"enum": [
"kraken",
"yahoo",
"mixed"
],
"type": "string",
"examples": [
"kraken"
]
},
"symbols": {
"type": "array",
"items": {
"type": "string"
},
"examples": [
[
"EURUSD",
"USDJPY",
"GBPUSD",
"AUDUSD",
"USDCAD",
"USDCHF",
"EURGBP",
"EURJPY",
"EURCHF",
"EURCAD",
"EURAUD",
"AUDJPY"
]
],
"maxItems": 12
},
"warnings": {
"type": "array",
"items": {
"type": "string"
},
"default": [],
"examples": [
[]
]
},
"receipt_id": {
"type": "string",
"examples": [
"rcpt_01EXAMPLE000000000000000"
]
}
},
"additionalProperties": false
}
}
}
}
}
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 60
}
],
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.003USDC≈ $0.003 USD
on Base · exact scheme
Pay 0.003 USDC on Base to 0x1D61…55a38. The signed payment is good for 1 minute.
- Paid to
- 0x1D61…55a38
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 3000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"billed": true,
"quotes": [
{
"ask": "1.12097",
"bid": "1.12096",
"mid": "1.120965",
"pair": "EURUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.0892"
},
{
"ask": "160.475",
"bid": "157.274",
"mid": "158.8745",
"pair": "USDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "201.4797"
},
{
"ask": "1.33776",
"bid": "1.33771",
"mid": "1.337735",
"pair": "GBPUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.3737"
},
{
"ask": "0.70193",
"bid": "0.70184",
"mid": "0.701885",
"pair": "AUDUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.2822"
},
{
"ask": "1.40195",
"bid": "1.40193",
"mid": "1.40194",
"pair": "USDCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.1426"
},
{
"ask": "0.82352",
"bid": "0.82348",
"mid": "0.8235",
"pair": "USDCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.4857"
},
{
"ask": "0.83801",
"bid": "0.83796",
"mid": "0.837985",
"pair": "EURGBP",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.5966"
},
{
"ask": "177.600",
"bid": "175.110",
"mid": "176.355",
"pair": "EURJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "141.1924"
},
{
"ask": "0.92317",
"bid": "0.92306",
"mid": "0.923115",
"pair": "EURCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.1916"
},
{
"ask": "1.57204",
"bid": "1.57179",
"mid": "1.571915",
"pair": "EURCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.5904"
},
{
"ask": "1.59753",
"bid": "1.59647",
"mid": "1.597",
"pair": "EURAUD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "6.6374"
},
{
"ask": "111.293",
"bid": "109.500",
"mid": "110.3965",
"pair": "AUDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "162.4145"
}
],
"source": "kraken",
"symbols": [
"EURUSD",
"USDJPY",
"GBPUSD",
"AUDUSD",
"USDCAD",
"USDCHF",
"EURGBP",
"EURJPY",
"EURCHF",
"EURCAD",
"EURAUD",
"AUDJPY"
],
"warnings": [],
"receipt_id": "rcpt_01EXAMPLE000000000000000"
}
}
},
"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",
"examples": [
{}
],
"properties": {},
"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",
"examples": [
{
"ok": true,
"billed": true,
"quotes": [
{
"ask": "1.12097",
"bid": "1.12096",
"mid": "1.120965",
"pair": "EURUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.0892"
},
{
"ask": "160.475",
"bid": "157.274",
"mid": "158.8745",
"pair": "USDJPY",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "201.4797"
},
{
"ask": "1.33776",
"bid": "1.33771",
"mid": "1.337735",
"pair": "GBPUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.3737"
},
{
"ask": "0.70193",
"bid": "0.70184",
"mid": "0.701885",
"pair": "AUDUSD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "1.2822"
},
{
"ask": "1.40195",
"bid": "1.40193",
"mid": "1.40194",
"pair": "USDCAD",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.1426"
},
{
"ask": "0.82352",
"bid": "0.82348",
"mid": "0.8235",
"pair": "USDCHF",
"source": "kraken",
"timestamp": 1792739027,
"quote_kind": "book",
"spread_bps": "0.4857"
},
{
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],
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}
}Provenance
- Seen in the source catalog
- 2026-10-23 07:45Z
- Last indexed by Roundhouse
- 2026-10-26 22:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-23 10:46Z
- 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. 3 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 agentshelf.syntexa.ch 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=agentshelf.syntexa.ch' 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://agentshelf.syntexa.ch/v1/fx-all, 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.