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
0xfe2d…05570x4a82…5bfeBaseBase$0.01100%coinbase112d ago0x64a291…6fa97c
0x4545…b7920x4a82…5bfeBaseBase$0.02100%coinbase113d ago0xfa57c9…498422
0xbc68…920a0x4a82…5bfeBaseBase$0.03100%coinbase113d ago0x1f4caa…2c6e8c
0x9e31…e7dc0x4a82…5bfeBaseBase$0.001100%coinbase113d ago0xf15814…b655cb
0xda23…200f0x4a82…5bfeBaseBase$0.01100%coinbase115d ago0xbb01ef…f8aea4
0xda23…200f0x4a82…5bfeBaseBase$0.01100%coinbase115d ago0xfa53b2…2bd0b9
0xda23…200f0x4a82…5bfeBaseBase$0.01100%coinbase115d ago0xa186f7…b3cdaf
0xda23…200f0x4a82…5bfeBaseBase$0.01100%coinbase115d ago0xe82997…593025
0x388a…43770x4a82…5bfeBaseBase$0.01100%coinbase119d ago0xe98653…3b7b99
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase119d ago0x0c0ed7…411ddd
0xddae…28b10x4a82…5bfeBaseBase$0.02100%coinbase119d ago0xdb18a1…8e5266
0x5a5a…955b0x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x4b01b1…b164fc
0x5a5a…955b0x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x46b190…63b330
0x5a10…b7c30x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x1f9056…3e2a1d
0x5a10…b7c30x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x616dcc…e2560b
0x5a10…b7c30x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x2fe0ac…149d30
0x7461…29750x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x30fabe…1587d8
0xe47e…faf80x4a82…5bfeBaseBase$0.02100%coinbase120d ago0x3451ad…a6b70e
0xddae…28b10x4a82…5bfeBaseBase$0.02100%coinbase121d ago0xaef50c…040ef7
0x7760…7eca0x4a82…5bfeBaseBase$0.02100%coinbase121d ago0x6beb29…127805
0xa986…19990x4a82…5bfeBaseBase$0.02100%coinbase122d ago0xe75878…9c5d06
0x0260…7d160x4a82…5bfeBaseBase$0.01100%coinbase123d ago0x18c144…3d7a20
0xe616…46c70x4a82…5bfeBaseBase$0.02100%coinbase123d ago0x382110…e56e7b
0xa716…b6280x4a82…5bfeBaseBase$0.02100%coinbase124d ago0xbc5438…3426ec
0x3327…9b1c0x4a82…5bfeBaseBase$0.02100%coinbase125d ago0xcdbdb0…cd0660

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.