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
307↑ 156%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$1.45
Verified settled volume
386 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
0x8ec9…9d150x5765…ed10BaseBase$0.002100%coinbase15d ago0x0e3a2e…d75cb7
0xaa34…1db30x5765…ed10BaseBase$0.002100%coinbase15d ago0x43c380…e54a38
0x35fe…c0300x5765…ed10BaseBase$0.001100%coinbase15d ago0x058db8…2d3151
0x54e1…f4e00x5765…ed10BaseBase$0.009100%coinbase15d ago0x8ac464…01432c
0x54e1…f4e00x5765…ed10BaseBase$0.001100%coinbase15d ago0xb4fab9…7a93ad
0xaa34…1db30x5765…ed10BaseBase$0.002100%coinbase16d ago0xfd9345…2eecc1
0x35fe…c0300x5765…ed10BaseBase$0.002100%coinbase16d ago0x6cfe9f…c93d46
0x73cc…1ea40x5765…ed10BaseBase$0.001100%coinbase16d ago0x7971c9…4c6d26
0xa1d1…19780x5765…ed10BaseBase$0.001100%coinbase16d ago0xbe7488…9d7498
0x35fe…c0300x5765…ed10BaseBase$0.002100%coinbase16d ago0x34df9e…c9aada
0x73cc…1ea40x5765…ed10BaseBase$0.002100%coinbase16d ago0x478e8f…dfe6bc
0x8ec9…9d150x5765…ed10BaseBase$0.002100%coinbase16d ago0x6d5bcb…9e50ef
0xaa34…1db30x5765…ed10BaseBase$0.001100%coinbase16d ago0x52ef11…6f5ed1
0xc9c7…16700x5765…ed10BaseBase$0.001100%coinbase17d ago0x95eaf0…e4b2ef
0xc498…254a0x5765…ed10BaseBase$0.001100%coinbase17d ago0xe70d79…19f60a
0xf1f1…57f90x5765…ed10BaseBase$0.001100%coinbase17d ago0x937670…7ff723
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0x0781ff…899897
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0x73cf24…6d6ada
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0x571d6e…809b87
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0xfc9d79…faae2a
0xc485…2d1e0x5765…ed10BaseBase$0.009100%coinbase17d ago0xc2e023…60b8b0
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0xe97e04…650da5
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase17d ago0x08fb84…acf1df
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase18d ago0x4b9394…7f07f2
0xc485…2d1e0x5765…ed10BaseBase$0.01100%coinbase18d ago0x553206…584fc1

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.