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
0xc9c7…16700x4a82…5bfeBaseBase$0.01100%coinbase23d ago0x7f55fe…7bce27
0x7722…5e4a0x4a82…5bfeBaseBase$0.05100%coinbase23d ago0xfdb2a6…731094
0x2481…85eb0x4a82…5bfeBaseBase$0.01100%coinbase23d ago0xf39ca1…4ce6b2
0xa1d1…19780x4a82…5bfeBaseBase$0.01100%coinbase24d ago0x05483e…167653
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x5eab45…5e4d44
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0xe59af9…94bb2d
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x53d37c…a8ae3d
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x2cf9b1…b31104
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x7b3e99…5bcbb4
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x72470b…66b62d
0x2a37…b9490x4a82…5bfeBaseBase$0.05100%coinbase24d ago0x82cf99…212b81
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x2dabc9…67fb24
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x8c3109…037abc
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0xcfcdbf…b17c9f
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x9626dd…716bf8
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x8e62d1…f54167
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x0bba71…51a291
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0xcc347b…62665d
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0xe40518…dc90b4
0x171d…0fca0x4a82…5bfeBaseBase$0.01100%coinbase25d ago0x977836…5129cb
0xc9c7…16700x4a82…5bfeBaseBase$0.01100%coinbase25d ago0xd31278…8ee0a2
0xc9c7…16700x4a82…5bfeBaseBase$0.01100%coinbase25d ago0xc7f742…ba77ea
0x79f8…f7580x4a82…5bfeBaseBase$0.01100%coinbase26d ago0x8bfb82…991291
0x54e1…f4e00x4a82…5bfeBaseBase$0.01100%coinbase26d ago0x31d2b1…ee3d94
0x54e1…f4e00x4a82…5bfeBaseBase$0.01100%coinbase26d ago0x2e6269…2090e4

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.