StatePulse API

50 pay-per-call tools for AI agents: live telemetry, environmental, transit, blockchain, network/security and finance utilities. x402 USDC on Base, no API key.

DataLiveeip155:8453Exactvia cdp
BlockchainBalancesFinance
Settlements · 30d
57↓ 20%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$12.19
Verified settled volume
522 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-26 00:36Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE

The wallet the 402 directs payment to. Its full payment record is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAgent #55014ERC-8004

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Payer PayeeChainAmountx402RouteAgeTxn hash
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase130d ago0xd869c8…cb455f
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase130d ago0x46c7d7…50ee1e
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase130d ago0x37caef…72106f
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x7373f2…4fc0bd
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0x5aec56…b3586e
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0xe8d69c…49b7e4
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase130d ago0x4f99b5…bc32d1
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0xb7aab7…c19d08
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x1b9bb7…80f40e
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xe123ab…76ef60
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xc2ea09…513d48
0xb86f…fbc90x4a82…5bfeBaseBase$0.05100%coinbase130d ago0x7ca8bd…2f02f1
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase130d ago0xb5f480…0aae21
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xf402e1…0728b4
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x59ea53…7e33d4
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xeebfd2…f4397e
0xb86f…fbc90x4a82…5bfeBaseBase$0.05100%coinbase130d ago0xb9103d…54ed27
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0x56ef69…6fa502
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x03780f…4bf39d
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0xadf73f…a6cab1
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x040316…9d319a
0xb86f…fbc90x4a82…5bfeBaseBase$0.05100%coinbase130d ago0xcf2f9c…47a4b3
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0xfcc54b…9da420
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xafc770…3ff7c8
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x12ae86…13fd3e

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying: a price here is a claim, not a quote.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x4a82…85bFE. The signed payment is good for 2 minutes.

USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
1000 smallest units
1000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

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.

Token contract
EPjFWd…TDt1v
Payment window
2 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
    },
    "payTo": "Bs3oEYkvpbzdaLN8KuCHHATfaifmSp7iLUsKBCFQyvhL",
    "amount": "1000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "wallet": "0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "result": {
            "chain": "base",
            "wallet": "0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE",
            "usdc_balance": "12.50",
            "native_balance": "0.42"
          },
          "supported": true,
          "confidence": "high"
        }
      }
    },
    "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": [
                "wallet"
              ],
              "properties": {
                "chain": {
                  "type": "string",
                  "default": "base",
                  "description": "ethereum or base"
                },
                "wallet": {
                  "type": "string",
                  "examples": [
                    "0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE"
                  ],
                  "description": "EVM wallet address"
                }
              }
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-26 00:36Z
Last indexed by Roundhouse
2026-09-25 00:10Z
Last enriched (probe, favicon, geo)
2026-10-06 09:45Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 200
Report

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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service StatePulse API 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=StatePulse%20API'
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://statepulse-api.hahavoid0.workers.dev/blockchain/balances, 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.