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
313↑ 194%
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
392 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
0xbb5d…71a90x5765…ed10BaseBase$0.00170%0x2772…8c1767d ago0x83a234…5a3cb1
0x914c…b5e40x5765…ed10BaseBase$0.00170%0x2772…8c1767d ago0x36eca5…9b3c37
0xd579…071a0x5765…ed10BaseBase$0.00170%0x2772…8c1767d ago0x63beab…6b3a8f
0x54e1…f4e00x5765…ed10BaseBase$0.00570%0x2772…8c1768d ago0xeff5b2…afe4b4
0x54e1…f4e00x5765…ed10BaseBase$0.00470%0x2772…8c1768d ago0x89c1df…ccefff
0x54e1…f4e00x5765…ed10BaseBase$0.00470%0x2772…8c1768d ago0x1ad5f7…9ff525
0x54e1…f4e00x5765…ed10BaseBase$0.00170%0x2772…8c1768d ago0xa6e3d6…a5ff87
0x54e1…f4e00x5765…ed10BaseBase$0.00170%0x2772…8c1768d ago0xa38f89…91288a
0x914c…b5e40x5765…ed10BaseBase$0.00170%0x2772…8c1768d ago0xd69a56…6ed716
0xc059…8b5e0x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x014a66…711315
0xbb5d…71a90x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0xf07f66…404a20
0xbb5d…71a90x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0x60e446…5a65cd
0xbb5d…71a90x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x496da4…a90173
0xbb5d…71a90x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0xa2d9fd…55aabc
0x6e53…a2650x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x3275d8…a4a27e
0x76e9…57b30x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x4094cb…4465ce
0x8d2a…7d370x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0x66b219…14055a
0x8d2a…7d370x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0xabc28c…9c912d
0x8d2a…7d370x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x56ade5…072b0f
0x8d2a…7d370x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x19d557…4b338c
0x8d2a…7d370x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0x75047f…cd53c6
0x8d2a…7d370x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0xc569d7…7fca67
0x8d2a…7d370x5765…ed10BaseBase$0.00170%0x2772…8c1769d ago0x868ac6…6258ba
0x8d2a…7d370x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0x260a2c…2777a7
0x8d2a…7d370x5765…ed10BaseBase$0.00470%0x2772…8c1769d ago0x757209…4c10d2

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.