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
0x6446…e6d50x5765…ed10BaseBase$0.00170%0x2772…8c1794d ago0x474892…4de317
0xc533…2d7a0x5765…ed10BaseBase$0.00170%0x2772…8c1794d ago0x202179…1ed617
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase95d ago0x54e967…efbb78
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase95d ago0x73484c…716714
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x11b749…e1b6f1
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x7e0e26…09b6c5
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x0df6de…9f9b9f
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x4c69a0…abc6b5
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0xaa5f80…e7c605
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x2de42e…0977b3
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0xdaa56d…6e64d3
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0xb0f84b…382e4a
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0xb7a1f7…21c9b5
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase95d ago0x70d865…1d3de1
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase95d ago0x2b0d80…2c239a
0xc59e…98dc0x5765…ed10BaseBase$0.00170%0x2772…8c1795d ago0x694347…ff9f16
0x3a3f…f3a70x5765…ed10BaseBase$0.00170%0x2772…8c1795d ago0xb05611…6bbbda
0x7052…402b0x5765…ed10BaseBase$0.00170%0x2772…8c1795d ago0x8c079e…30097e
0x46bd…2ebd0x5765…ed10BaseBase$0.00170%0x2772…8c1796d ago0xa438ba…493c43
0x76e9…57b30x5765…ed10BaseBase$0.00170%0x2772…8c1796d ago0xc273ae…b9ea6d
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x5ae324…6fab9c
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xfd79ad…e37948
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0x9dc58e…8d4434
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase96d ago0xb250bd…a88275
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase96d ago0x555f97…045d82

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.