Obol
Verified blockchain-data lookups, paid per request with USDC on Base.
Offering
- Provider
- obol.danieldutoit.net
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Blockchain And Crypto
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://obol.danieldutoit.net/v1/cardano/transaction?hash=a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0- MIME type
- Not provided
- First seen
- 2026-10-16T03:25:59.412Z
- Last seen
- Tags
- blockchain-data, cardano, transactions, onchain-data, X402, a2a
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "3000",
"payTo": "0x4094383033C1861E2686eaC4d4BBae6F0031F5d2"
}
]Observed health
- Status
- Healthy
- Latest latency
- 748 ms
- Average latency
- 1031 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"hash": {
"type": "string",
"pattern": "^[0-9a-fA-F]{64}$",
"description": "Cardano transaction hash; exactly 64 hexadecimal characters and canonicalized to lowercase."
}
},
"required": [
"hash"
],
"additionalProperties": true
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"type": "object",
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"network": {
"type": "string",
"const": "cardano-mainnet"
},
"transaction_hash": {
"type": "string",
"pattern": "^[0-9a-f]{64}$"
},
"found": {
"type": "boolean"
},
"transaction": {
"anyOf": [
{
"type": "object",
"properties": {
"block_hash": {
"type": "string",
"pattern": "^[0-9a-f]{64}$"
},
"block_number": {
"type": [
"integer",
"null"
],
"minimum": 0
},
"slot_number": {
"type": [
"integer",
"null"
],
"minimum": 0
},
"block_time": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"
},
"block_index": {
"type": "integer",
"minimum": 0
},
"output_lovelace": {
"type": "string",
"pattern": "^[0-9]+$"
},
"fee_lovelace": {
"type": "string",
"pattern": "^[0-9]+$"
},
"deposit_lovelace": {
"anyOf": [
{
"type": "string",
"pattern": "^[0-9]+$"
},
{
"type": "null"
}
]
},
"size_bytes": {
"type": "integer",
"minimum": 0
},
"valid_contract": {
"type": "boolean"
},
"script_size_bytes": {
"type": "integer",
"minimum": 0
},
"treasury_donation_lovelace": {
"type": "string",
"pattern": "^[0-9]+$"
}
},
"required": [
"block_hash",
"block_number",
"slot_number",
"block_time",
"block_index",
"output_lovelace",
"fee_lovelace",
"deposit_lovelace",
"size_bytes",
"valid_contract",
"script_size_bytes",
"treasury_donation_lovelace"
],
"additionalProperties": false
},
{
"type": "null"
}
]
},
"coverage": {
"type": "object",
"properties": {
"match_type": {
"type": "string",
"const": "exact_transaction_hash"
},
"maximum_results": {
"type": "integer",
"const": 1
}
},
"required": [
"match_type",
"maximum_results"
],
"additionalProperties": false
}
},
"required": [
"network",
"transaction_hash",
"found",
"transaction",
"coverage"
],
"additionalProperties": false,
"allOf": [
{
"if": {
"properties": {
"found": {
"const": true
}
}
},
"then": {
"properties": {
"transaction": {
"type": "object"
}
}
},
"else": {
"properties": {
"transaction": {
"type": "null"
}
}
}
}
]
}
},
"required": [
"type"
]
}