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
0x8d2a…7d370x4a82…5bfeBaseBase$0.01100%coinbase69d ago0x895859…ade9ad
0x8d2a…7d370x4a82…5bfeBaseBase$0.01100%coinbase69d ago0xf810ed…c17b60
0x8d2a…7d370x4a82…5bfeBaseBase$0.01100%coinbase69d ago0x702b71…4ea8fe
0x8d2a…7d370x4a82…5bfeBaseBase$0.01100%coinbase72d ago0x9511ec…71d61b
0xd1b1…28870x4a82…5bfeBaseBase$0.01100%coinbase75d ago0x591d8c…dd6258
0xc533…2d7a0x4a82…5bfeBaseBase$0.03100%coinbase76d ago0x07a7bb…2321a9
0xc533…2d7a0x4a82…5bfeBaseBase$0.02100%coinbase76d ago0x5cf26f…e852b3
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase76d ago0x5d9123…77f2b4
0x2a07…7bae0x4a82…5bfeBaseBase$0.001100%coinbase81d ago0x65fb4e…274da6
0x2a07…7bae0x4a82…5bfeBaseBase$0.01100%coinbase81d ago0xc5ceb9…7a2c96
0xf843…49300x4a82…5bfeBaseBase$0.001100%coinbase83d ago0x3d71d3…608dfe
0xe2d8…66c20x4a82…5bfeBaseBase$0.01100%coinbase85d ago0x49f1e2…39e15d
0xe2d8…66c20x4a82…5bfeBaseBase$0.01100%coinbase85d ago0x259a16…0db4f4
0xe2d8…66c20x4a82…5bfeBaseBase$0.01100%coinbase85d ago0x7b257b…5564b3
0x456a…98e80x4a82…5bfeBaseBase$0.02100%coinbase89d ago0x5aba67…f01010
0xc533…2d7a0x4a82…5bfeBaseBase$0.001100%coinbase92d ago0xa9225a…dad2e4
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase94d ago0xe2eb3a…b66674
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase94d ago0x41d626…1418e2
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase94d ago0x0452e3…cee16a
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase94d ago0x1f5627…178685
0xc533…2d7a0x4a82…5bfeBaseBase$0.01100%coinbase94d ago0xb3a211…b64e90
0xc533…2d7a0x4a82…5bfeBaseBase$0.001100%coinbase94d ago0xdb9a07…df04a4
0xc533…2d7a0x4a82…5bfeBaseBase$0.001100%coinbase94d ago0x273bc1…c71da0
0xc533…2d7a0x4a82…5bfeBaseBase$0.001100%coinbase94d ago0x7f63e7…6b6a73
0xc533…2d7a0x4a82…5bfeBaseBase$0.001100%coinbase94d ago0x7879ba…5d1aac

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.