api.blockscout.com
Explore crypto activities with Blockscout
OtherLiveeip155:8453Exactvia cdp
Calls · 30d
14↓ 8.0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$2.44
Verified settled volume
1,204 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
14
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-09-22 11:53Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xd441D9F4c59CB26253E2F0A7a62ac9cE7823b4b4The 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": "Proceed with API key or make a X402 payment to continue"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0xd441…3b4b4. The signed payment is good for 1 minute.
- Paid to
- 0xd441…3b4b4
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 2000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd441D9F4c59CB26253E2F0A7a62ac9cE7823b4b4",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"chain_id": "8453",
"address_hash_param": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
},
"output": {
"type": "json",
"example": {
"abi": [
{}
],
"name": "string",
"language": "string",
"certified": true,
"file_path": "string",
"market_cap": "string",
"proxy_type": "string",
"reputation": "string",
"evm_version": "string",
"is_verified": true,
"source_code": "string",
"verified_at": "string",
"coin_balance": "string",
"is_blueprint": true,
"license_type": "string",
"package_name": "string",
"creation_status": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"compiler_version": "string",
"constructor_args": "string",
"compiler_settings": {},
"creation_bytecode": "string",
"deployed_bytecode": "string",
"is_fully_verified": true,
"optimization_runs": 0,
"sourcify_repo_url": "string",
"additional_sources": [
{
"file_path": "string",
"source_code": "string"
}
],
"external_libraries": [
{
"name": "string",
"address_hash": "string"
}
],
"transactions_count": 0,
"is_changed_bytecode": true,
"has_constructor_args": true,
"optimization_enabled": true,
"is_partially_verified": true,
"verification_metadata": {},
"decoded_constructor_args": [
[
{}
]
],
"is_verified_via_sourcify": true,
"github_repository_metadata": {},
"verified_twin_address_hash": "string",
"conflicting_implementations": [
{
"proxy_type": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
]
}
],
"can_be_visualized_via_sol2uml": true,
"is_verified_via_eth_bytecode_db": true,
"is_verified_via_verifier_alliance": true
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"pathParams": {
"type": "object",
"properties": {
"chain_id": {
"type": "string"
},
"address_hash_param": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/:chain_id/api/v2/smart-contracts/:address_hash_param"
}
}Provenance
- Seen in the source catalog
- 2026-09-22 11:53Z
- Last indexed by Roundhouse
- 2026-09-24 08:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 04:45Z
- 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. 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 api.blockscout.com 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=api.blockscout.com' 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://api.blockscout.com/:chain_id/api/v2/smart-contracts/:address_hash_param, 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.