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%coinbase138d ago0xd0504d…bb9e05
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase138d ago0x8fd5df…c43f74
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase138d ago0x0801cc…4d7e7d
0x7f4b…3b920x4a82…5bfeBaseBase$0.03100%coinbase139d ago0xf79b76…8b611d
0x15ed…d07c0x4a82…5bfeBaseBase$0.03100%coinbase139d ago0xd80cfa…f44969
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase141d ago0x5ec683…b76a2b
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase141d ago0x13a3dd…0daca9
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase142d ago0x858d60…c16bec
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase142d ago0x5dad83…d6f714
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase143d ago0x4d8ffe…9664d1
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase143d ago0x70bb0e…54b9ce
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase144d ago0x93114c…d21c9a
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase144d ago0x3d4daf…0912ca
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase145d ago0xdf7bb0…1f16bc
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase145d ago0xd9e77f…6ce615
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase146d ago0x9c4a67…fe087b
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase146d ago0x8d7cea…a1ce13
0xccc1…ff2d0x4a82…5bfeBaseBase$0.03100%coinbase146d ago0x01fc8d…bcbb83
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase146d ago0x3d7d56…96c0f2
0xed6e…52e60x4a82…5bfeBaseBase$0.01100%coinbase146d ago0x2a9f9b…42775a
0xb86f…fbc90x4a82…5bfeBaseBase$0.01100%coinbase147d ago0xcdc1f1…0c0499
0x9cc4…b1760x4a82…5bfeBaseBase$0.03100%coinbase147d ago0x9e000b…341e53
0x9cc4…b1760x4a82…5bfeBaseBase$0.03100%coinbase147d ago0x83dafc…0cba09
0x9cc4…b1760x4a82…5bfeBaseBase$0.03100%coinbase147d ago0x68fd7c…08e21b
0xb86f…fbc90x4a82…5bfeBaseBase$0.03100%coinbase147d ago0x27802f…dd0205

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.