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
316↑ 213%
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
395 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
0xc59e…98dc0x5765…ed10BaseBase$0.00470%0x2772…8c1784d ago0x4b077f…f60d75
0xc59e…98dc0x5765…ed10BaseBase$0.00170%0x2772…8c1784d ago0x7465a7…8afb68
0xc59e…98dc0x5765…ed10BaseBase$0.00470%0x2772…8c1784d ago0x5d241c…d46e5d
0x9456…8f090x5765…ed10BaseBase$0.00470%0x2772…8c1784d ago0x2b9caa…ddabea
0x64db…c3680x5765…ed10BaseBase$0.00170%0x2772…8c1784d ago0xc8bda2…2e6f67
0x64db…c3680x5765…ed10BaseBase$0.00170%0x2772…8c1784d ago0xeeedda…8d5ac2
0x64db…c3680x5765…ed10BaseBase$0.00170%0x2772…8c1785d ago0x218cc1…3ba204
0x64db…c3680x5765…ed10BaseBase$0.00170%0x2772…8c1785d ago0xf327c7…4d0c6a
0x6058…2b550x5765…ed10BaseBase$0.00170%0x2772…8c1786d ago0xc2fe59…bd1bfe
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x67fd09…c588f1
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xe3904e…352a7d
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xaf4fae…56cca1
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x588f42…0bd5a2
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xfc46bf…d18430
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xb49492…3816a2
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x1509c3…cebd9c
0x9456…8f090x5765…ed10BaseBase$0.00170%0x2772…8c1787d ago0xea75b1…478cd5
0xaf95…11740x5765…ed10BaseBase$0.00170%0x2772…8c1787d ago0x98f0b2…ce3f7a
0x01f9…84d30x5765…ed10BaseBase$0.00170%0x2772…8c1787d ago0x04aced…abc49e
0x7052…402b0x5765…ed10BaseBase$0.00170%0x2772…8c1787d ago0x9daede…bb8fbc
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xda4a0d…32d316
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x7d83c5…d8824e
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x670e8d…afae4f
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x09143b…4bec97
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x92f835…e9ce91

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.