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
311↑ 181%
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
391 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$0.001100%coinbase27d ago0x05d4bf…f01911
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase27d ago0x1d7c7f…745c9b
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0xd2d6be…7fa8ae
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0x25e00b…2ecea0
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0xd5d386…25c960
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0x65ed05…566162
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0xa8f397…85fa46
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0xbef635…bca625
0xc485…2d1e0x5765…ed10BaseBase$0.004100%coinbase27d ago0xf6073f…e4fcdf
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase27d ago0x5b30cf…3be8c8
0xc485…2d1e0x5765…ed10BaseBase$0.004100%coinbase27d ago0x979f12…ed5699
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase27d ago0x9da56e…e5d6f2
0xa1d1…19780x5765…ed10BaseBase$0.00470%0x2772…8c1731d ago0xb8332c…4de74c
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1732d ago0x1e99bd…bb2932
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1732d ago0x72943b…ffc04e
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1732d ago0xfb649f…604b6c
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1732d ago0xe44cb6…f7b4ed
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1732d ago0x1e84e2…55b1f6
0xec2a…d0340x5765…ed10BaseBase$0.00170%0x2772…8c1734d ago0x96a8ca…575294
0xec2a…d0340x5765…ed10BaseBase$0.00470%0x2772…8c1734d ago0xf23460…2097b7
0xec2a…d0340x5765…ed10BaseBase$0.00470%0x2772…8c1734d ago0xb1c9c4…e8f864
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1739d ago0x8624dd…8c1b52
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1739d ago0x20981b…634c1a
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1739d ago0xe9f2ab…163da0
0xa19f…accc0x5765…ed10BaseBase$0.00170%0x2772…8c1739d ago0x3b7f01…beca5a

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.