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$0.01100%coinbase130d ago0xe5ea0b…be6377
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase130d ago0xa43c7f…49190e
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x93f048…d09873
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase130d ago0x84d104…5f470a
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase131d ago0x4021c3…b25359
0xb1b6…0f880x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x0946e9…07242f
0xa461…13580x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x0bb36e…3fce0d
0xc13d…5c240x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x1f1c15…ade5ff
0x3885…eaf00x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x0d39e1…85e83f
0x9936…4a370x4a82…5bfeBaseBase$0.02100%coinbase131d ago0xc2495a…6485d1
0x0260…7d160x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x1ad588…0377e3
0x3d09…5be10x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x126802…ad0a7b
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase131d ago0xe559fa…2fdeda
0xaf5b…85ae0x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x4c4853…9eb523
0x3d09…5be10x4a82…5bfeBaseBase$0.02100%coinbase131d ago0x7f8833…2ea85b
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x4bf999…7bba7f
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x45f30b…7ec455
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x729fd1…4e169b
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0xe13a85…5cd925
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0xcbbba2…c6f96c
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x934f1e…879ba7
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0xfe641a…810107
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x3dd66b…4cadd0
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0xc23579…6e6361
0xdec6…9ab20x4a82…5bfeBaseBase$0.03100%coinbase131d ago0x1a2496…8a06a8

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.