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
309↑ 169%
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
388 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%coinbase26d ago0xa8937f…cbd92a
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase26d ago0x6f4f4a…c41dd3
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase26d ago0xac816c…b8afb5
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase26d ago0xfda8f9…3ee78e
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase26d ago0x1255b7…79e0a8
0xec2a…d0340x5765…ed10BaseBase$0.005100%coinbase26d ago0x947a59…f50a8f
0xc485…2d1e0x5765…ed10BaseBase$0.002100%coinbase26d ago0xf4d4ed…a2848f
0xc485…2d1e0x5765…ed10BaseBase$0.002100%coinbase26d ago0x2a5515…c1b979
0x54e1…f4e00x5765…ed10BaseBase$0.008100%coinbase26d ago0x0fd66c…1e7660
0xc485…2d1e0x5765…ed10BaseBase$0.002100%payAI26d ago0xd119d2…2066de
0xc485…2d1e0x5765…ed10BaseBase$0.003100%payAI26d ago0xc9bd88…028259
0xc485…2d1e0x5765…ed10BaseBase$0.002100%coinbase26d ago0xfef18a…d9ec9b
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase26d ago0xa158ba…072378
0xec2a…d0340x5765…ed10BaseBase$0.01100%coinbase26d ago0xff0854…62f5c9
0xc485…2d1e0x5765…ed10BaseBase$0.003100%payAI26d ago0xf560d0…931039
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase26d ago0xb8466a…66d8d1
0xc485…2d1e0x5765…ed10BaseBase$0.001100%openfacilitator27d ago0xd106e0…4f6330
0xc485…2d1e0x5765…ed10BaseBase$0.001100%payAI27d ago0xf98fa1…f769d1
0xc485…2d1e0x5765…ed10BaseBase$0.004100%dexter27d ago0xa8e4c8…6d7035
0xc485…2d1e0x5765…ed10BaseBase$0.002100%dexter27d ago0x3461dd…46ff94
0xc485…2d1e0x5765…ed10BaseBase$0.002100%dexter27d ago0x96f736…d1b3ae
0xc485…2d1e0x5765…ed10BaseBase$0.003100%dexter27d ago0xc52609…0ec9c1
0xc485…2d1e0x5765…ed10BaseBase$0.009100%dexter27d ago0x615d5d…79771a
0xc485…2d1e0x5765…ed10BaseBase$0.005100%dexter27d ago0x958d9a…612732
0xc485…2d1e0x5765…ed10BaseBase$0.008100%dexter27d ago0xa81ae7…188f31

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.