Straelo Relay
Simulate an Ethereum or Base transaction before execution and return an ALLOW, WARN, BLOCK, or INCOMPLETE decision with deterministic risk findings. Supports legacy post-execution inspection via tx_hash and pre-execution simulation via {from, to, value, data}.
Offering
- Provider
- relay.straelo.com
- Method
- POST
- 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://relay.straelo.com/transaction-intelligence- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:24.663Z
- Last seen
- Tags
- blockchain, Transaction, EVM, Base, Ethereum
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x267ead21c0a5c1bf7e44cb357641556edc52d232"
}
]Observed health
- Status
- Degraded
- Latest latency
- 100 ms
- Average latency
- 282 ms
- HTTP status
- 404
- 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
{
"additionalProperties": false,
"properties": {
"body": {
"oneOf": [
{
"additionalProperties": false,
"properties": {
"chain": {
"description": "EVM network containing the transaction.",
"enum": [
"ethereum",
"base"
],
"type": "string"
},
"tx_hash": {
"description": "32-byte EVM transaction hash (legacy post-execution mode).",
"pattern": "^0x[a-fA-F0-9]{64}$",
"type": "string"
}
},
"required": [
"chain",
"tx_hash"
],
"type": "object"
},
{
"additionalProperties": false,
"properties": {
"chain": {
"description": "EVM network for pre-execution simulation.",
"enum": [
"ethereum",
"base"
],
"type": "string"
},
"data": {
"description": "Calldata hex for contract calls.",
"pattern": "^0x(?:[a-fA-F0-9]{2})*$",
"type": "string"
},
"from_address": {
"description": "Sender address for pre-execution simulation.",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"to_address": {
"description": "Recipient/target address for pre-execution simulation.",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"value": {
"description": "Native value in hex wei.",
"pattern": "^0x[0-9a-fA-F]*$",
"type": "string"
}
},
"required": [
"chain",
"from_address"
],
"type": "object"
}
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"properties": {
"example": {
"oneOf": [
{
"additionalProperties": false,
"properties": {
"analysis": {
"description": "Deterministic execution, classification, selector, value, gas, fee, logs, and creation analysis.",
"type": "object"
},
"chain": {
"description": "Selected EVM network.",
"type": "string"
},
"latency_ms": {
"description": "Observed RPC latency in milliseconds.",
"type": "integer"
},
"provider": {
"description": "RPC provider identifier.",
"type": "string"
},
"receipt": {
"description": "Raw RPC receipt, or null when pending or unavailable.",
"type": [
"object",
"null"
]
},
"transaction": {
"description": "Raw RPC transaction, or null when unavailable.",
"type": [
"object",
"null"
]
},
"tx_hash": {
"description": "Requested transaction hash.",
"type": "string"
}
},
"required": [
"chain",
"tx_hash",
"analysis",
"transaction",
"receipt",
"provider",
"latency_ms"
],
"type": "object"
},
{
"additionalProperties": false,
"properties": {
"chain": {
"description": "Selected EVM network.",
"type": "string"
},
"counterparty": {
"description": "Recipient / counterparty address.",
"type": [
"string",
"null"
]
},
"decision": {
"description": "Pre-execution decision.",
"enum": [
"ALLOW",
"WARN",
"BLOCK",
"INCOMPLETE"
],
"type": "string"
},
"decoded_action": {
"description": "Decoded ERC20/ERC1155 action when recognized.",
"type": [
"object",
"null"
]
},
"estimated_gas": {
"description": "Estimated gas from eth_estimateGas.",
"type": [
"string",
"null"
]
},
"findings": {
"description": "Deterministic factual findings.",
"items": {
"type": "string"
},
"type": "array"
},
"interaction_type": {
"description": "Recognized interaction type.",
"type": "string"
},
"latency_ms": {
"description": "Observed RPC latency in milliseconds.",
"type": "integer"
},
"method_selector": {
"description": "First 4 bytes of calldata.",
"type": [
"string",
"null"
]
},
"native_value": {
"description": "Native value in decimal wei.",
"type": [
"string",
"null"
]
},
"provider": {
"description": "RPC provider identifier.",
"type": "string"
},
"reasons": {
"description": "Human-readable reasons for the decision.",
"items": {
"type": "string"
},
"type": "array"
},
"simulation_status": {
"description": "RPC simulation outcome.",
"type": "string"
}
},
"required": [
"chain",
"decision",
"simulation_status",
"method_selector",
"interaction_type",
"counterparty",
"native_value",
"findings",
"reasons",
"provider",
"latency_ms"
],
"type": "object"
}
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}