agentshelf.syntexa.ch
No description published for this endpoint.
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": "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/eth-storage",
"description": "Call when an agent needs the storage word at a slot for one Ethereum contract. Send contract, slot, and an optional block tag. Read-only eth_getStorageAt. No spend. Send JSON {\"contract\":\"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\",\"slot\":\"0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc\"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/eth-storage first.",
"outputSchema": {
"info": {
"input": {
"body": {
"slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
"contract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
"block": "latest",
"value": "0x0000000000000000000000000000000000000000000000000000000000000000",
"billed": true,
"network": "eip155:1",
"contract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"warnings": [],
"receipt_id": "rcpt_01EXAMPLE000000000000000"
}
}
},
"schema": {
"type": "object",
"$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": [
{
"slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
"contract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
],
"required": [
"contract",
"slot"
],
"properties": {
"slot": {
"type": "string",
"examples": [
"0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
],
"description": "Storage slot as a uint256 decimal or 0x-prefixed hex word of at most 32 bytes. Example: 0. The response value is 32 bytes."
},
"block": {
"type": "string",
"description": "Optional block number or tag latest, finalized, or safe. Example: latest. Omit it for latest. A JSON number such as 100 is accepted."
},
"contract": {
"type": "string",
"examples": [
"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
],
"description": "Contract on Ethereum mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. eth_getStorageAt is read-only."
}
},
"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,
"slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
"block": "latest",
"value": "0x0000000000000000000000000000000000000000000000000000000000000000",
"billed": true,
"network": "eip155:1",
"contract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"warnings": [],
"receipt_id": "rcpt_01EXAMPLE000000000000000"
}
],
"required": [
"ok",
"receipt_id",
"billed",
"network",
"contract",
"slot",
"block",
"value"
],
"properties": {
"ok": {
"type": "boolean",
"const": true,
"examples": [
true
]
},
"slot": {
"type": "string",
"examples": [
"0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
]
},
"block": {
"type": "string",
"examples": [
"latest"
]
},
"value": {
"type": "string",
"examples": [
"0x0000000000000000000000000000000000000000000000000000000000000000"
]
},
"billed": {
"type": "boolean",
"examples": [
true
]
},
"network": {
"type": "string",
"const": "eip155:1",
"examples": [
"eip155:1"
]
},
"contract": {
"type": "string",
"examples": [
"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
]
},
"warnings": {
"type": "array",
"items": {
"type": "string"
},
"default": [],
"examples": [
[]
]
},
"receipt_id": {
"type": "string",
"examples": [
"rcpt_01EXAMPLE000000000000000"
]
}
},
"additionalProperties": false
}
}
}
}
}
},
"maxAmountRequired": "2000",
"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.
Pay 0.002 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
- 2000 smallest units
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://agentshelf.syntexa.ch/v1/eth-storage",
"description": "",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 60
}
]Provenance
- Seen in the source catalog
- 2026-10-19 07:32Z
- Last indexed by Roundhouse
- 2026-10-25 08:15Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 14:46Z
- x402 version
- 1
- 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. 9 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/eth-storage, 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.