api.greyridgesignals.ai

Agent-native, pay-per-call data on Base mainnet. Base RPC reads, crypto/DeFi/prediction markets, and security endpoints—no account, no API key. Settled inline in USDC over x402 protocol.

TradingLiveeip155:8453Exactvia cdp
Settlements · 30d
317↑ 219%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$1.46
Verified settled volume
397 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
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 2026-08-27 17:22Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10

The wallet the 402 directs payment to. Its full payment record is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service; most of the catalog is unregistered.

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
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase96d ago0x555f97…045d82
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase96d ago0x42a55e…6a5450
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x87708f…94328d
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xa8c667…3968b8
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x14c181…6294e3
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xb061fb…4cea5b
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xb21611…c9c91c
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xc24035…3e2933
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x407d9e…b96bfa
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x3c3e77…ebf9e4
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x414321…46487f
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xa61c1d…0ad296
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase96d ago0x2698e2…94e9fb
0x3aeb…84080x5765…ed10BaseBase$0.00170%0x2772…8c17105d ago0x4b08ce…8daa4c
0x01f9…84d30x5765…ed10BaseBase$0.00170%0x2772…8c17106d ago0x68df5f…6de4e5
0x7e81…34a70x5765…ed10BaseBase$0.00570%0x2772…8c17108d ago0x82cb9a…b3bf18
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0x029158…cae01a
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0xb5ab75…9a433a
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0x762d78…d6628f
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase110d ago0xd45a3a…d137d8
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0x13d383…5d06db
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0xf35f8d…c5b36b
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0x27dd90…22acb8
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase110d ago0xb6e12c…dde6e5
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase110d ago0x9532a5…b356f4

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying: a price here is a claim, not a quote.

0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x5765…9ed10. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
4000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "limit": "20"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "coin": "BTC",
          "markPx": 63730,
          "signal": "LONGS_PAY",
          "funding": {
            "okx": 0.0000492,
            "dydx": -0.00000875,
            "hyperliquid": 0.0000125
          },
          "premium": 0.00012,
          "oraclePx": 63750,
          "dayNtlVlm": 1670654479.062529,
          "openInterest": 37519.8698399999,
          "annualized_hl": 0.1095,
          "annualized_okx": 0.05387,
          "best_long_venue": "hyperliquid",
          "next_funding_ts": 1784304000000,
          "best_short_venue": "okx",
          "funding_spread_bps": 0.37
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "limit": {
                  "type": "string",
                  "description": "Max coins to return (default 20, max 100)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-18 14:31Z
Last indexed by Roundhouse
2026-09-23 18:10Z
Last enriched (probe, favicon, geo)
2026-09-23 03:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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 api.greyridgesignals.ai 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=api.greyridgesignals.ai'
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://api.greyridgesignals.ai/crypto/funding, 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.