EVM & Solana Utility Tools
x402 Atlas provides real-time x402 analytics for autonomous APIs on Base. Track transactions, discover trends, and analyze the x402 ecosystem.
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.
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 0.005 USDC on Base to 0x8C12…Df1b2. The signed payment is good for 5 minutes.
- Paid to
- 0x8C12…Df1b2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"salt": "0x0000000000000000000000000000000000000000000000000000000000000000",
"deployer": "0x0000000000000000000000000000000000000000",
"init_code": "0xdeadbeef"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"salt": "0x0000000000000000000000000000000000000000000000000000000000000000",
"address": "0x70f2b2914a2a4b783faefb75f459a580616fcb5e",
"deployer": "0x0000000000000000000000000000000000000000",
"preimage": "0xff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d4fd4e189132273036449fc9e11198c739161b4c0116a9a2dccdfa1c492006f1",
"warnings": [],
"init_code": "0xdeadbeef",
"operation": "create2",
"preimage_hash": "0x7c389b77881a0016face428070f2b2914a2a4b783faefb75f459a580616fcb5e",
"init_code_hash": "0xd4fd4e189132273036449fc9e11198c739161b4c0116a9a2dccdfa1c492006f1",
"checksum_address": "0x70f2b2914A2a4b783FaEFb75f459A580616Fcb5e",
"algorithm_version": "eip1014-create2-v1"
}
}
},
"tags": [
"create2-address",
"eip-1014",
"evm",
"contract-deployment",
"blockchain-development"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"deployer",
"salt",
"init_code"
],
"properties": {
"salt": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 66,
"minLength": 66,
"description": "CREATE2 salt"
},
"deployer": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 42,
"minLength": 42,
"description": "EVM deployer address"
},
"init_code": {
"type": "string",
"pattern": "^0x(?:[0-9a-fA-F]{2})*$",
"maxLength": 130924,
"description": "Contract creation init code, not deployed runtime code; at most 65,461 bytes so the closed request fits the 128 KiB body cap"
}
},
"description": "Canonical CREATE2 request using init code",
"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",
"required": [
"operation",
"algorithm_version",
"deployer",
"salt",
"init_code_hash",
"preimage",
"preimage_hash",
"address",
"checksum_address",
"warnings"
],
"properties": {
"salt": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 66,
"minLength": 66,
"description": "Normalized salt"
},
"_atlas": {
"type": "object",
"required": [
"docs"
],
"properties": {
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Documentation URL for this bridge"
},
"related": {
"type": "array",
"items": {
"type": "object",
"required": [
"bridge",
"url",
"docs",
"summary"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related route URL"
},
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related bridge documentation URL"
},
"bridge": {
"type": "string",
"maxLength": 64,
"description": "Related bridge name"
},
"summary": {
"type": "string",
"maxLength": 256,
"description": "Short capability summary"
}
},
"description": "One related Atlas route",
"additionalProperties": false
},
"maxItems": 3,
"description": "Bounded related Atlas routes"
}
},
"description": "Atlas documentation and related-route metadata added after deployment",
"additionalProperties": false
},
"address": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 42,
"minLength": 42,
"description": "Lower-case final 20-byte address"
},
"deployer": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 42,
"minLength": 42,
"description": "Normalized lower-case deployer"
},
"preimage": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 172,
"minLength": 172,
"description": "Exact 0xff + deployer + salt + init-code-hash bytes"
},
"warnings": {
"type": "array",
"items": {
"type": "string",
"description": "Warning"
},
"maxItems": 0,
"description": "Always empty"
},
"init_code": {
"type": "string",
"description": "Normalized init code when supplied"
},
"operation": {
"type": "string",
"const": "create2",
"description": "Stable route operation"
},
"preimage_hash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 66,
"minLength": 66,
"description": "Keccak-256 of the 85-byte preimage"
},
"init_code_hash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]+$",
"maxLength": 66,
"minLength": 66,
"description": "Keccak-256 of init code or supplied hash"
},
"checksum_address": {
"type": "string",
"description": "EIP-55 checksum address"
},
"algorithm_version": {
"type": "string",
"const": "eip1014-create2-v1",
"description": "Pinned EIP-1014 contract"
}
},
"additionalProperties": false
}
}
}
}
},
"category": "utilities"
}
}Provenance
- Seen in the source catalog
- 2026-09-15 06:32Z
- Last indexed by Roundhouse
- 2026-09-24 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 13:15Z
- x402 version
- 2
- Max timeout
- 300s
- 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. 30 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 EVM & Solana Utility Tools 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=EVM%20%26%20Solana%20Utility%20Tools' 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://chain-tools.use.x402atlas.com/evm/create2, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.