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%coinbase133d ago0xc98a4b…fb4e0c
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase133d ago0x803f7a…e013b3
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase133d ago0xdf132e…47607b
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase133d ago0x6e0de0…64f32f
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase133d ago0xc650bf…0f8f06
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase133d ago0xe37f97…09c950
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase133d ago0xb51ae5…d7e8e6
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase133d ago0x78131b…1dd531
0xb86f…fbc90x4a82…5bfeBaseBase$0.02100%coinbase133d ago0x289848…511331
0x3d8d…19aa0x4a82…5bfeBaseBase$0.02100%coinbase133d ago0x99a029…203157
0x5aa0…2fe70x4a82…5bfeBaseBase$0.05100%coinbase133d ago0x173144…7b01a9
0x03dd…dc850x4a82…5bfeBaseBase$0.02100%coinbase133d ago0x6f9426…741c60
0xd5c5…27a30x4a82…5bfeBaseBase$0.02100%coinbase133d ago0x0dfa08…099a4a
0x0d8a…c98b0x4a82…5bfeBaseBase$0.02100%coinbase134d ago0xe88796…78b96b
0xa716…b6280x4a82…5bfeBaseBase$0.10100%coinbase134d ago0x3c923c…95646a
0x154b…6d880x4a82…5bfeBaseBase$0.02100%coinbase134d ago0x8760f0…a160f5
0x0cef…e9c00x4a82…5bfeBaseBase$0.02100%coinbase134d ago0x714152…d1523a
0x333b…fb020x4a82…5bfeBaseBase$0.02100%coinbase135d ago0xde5f9e…926df2
0x56b7…fc730x4a82…5bfeBaseBase$0.02100%coinbase135d ago0x5d1633…e714e7
0xf1e9…0f6f0x4a82…5bfeBaseBase$0.02100%coinbase135d ago0x31a20f…a3c9d1
0x9062…84d70x4a82…5bfeBaseBase$0.12100%coinbase135d ago0x34c3fd…0e149d
0x9062…84d70x4a82…5bfeBaseBase$0.10100%coinbase135d ago0x63f214…08b25a
0x5ca5…fda20x4a82…5bfeBaseBase$0.02100%coinbase135d ago0x7581d2…9ba229
0xe8af…ddf30x4a82…5bfeBaseBase$0.02100%coinbase135d ago0x7550cd…c46197
0x4d8c…92df0x4a82…5bfeBaseBase$0.02100%coinbase136d ago0x1f12d3…88620e

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.