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
396 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
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x95ccb1…08fda5
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x7c3b53…f79113
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0x07cf8b…bea3b3
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xa2f27f…51f8bd
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xe45539…1c4aa3
0x2533…04a10x5765…ed10BaseBase$0.00470%0x2772…8c1787d ago0xf497c9…489834
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase89d ago0xc35822…c75b19
0xc485…2d1e0x5765…ed10BaseBase$0.003100%coinbase89d ago0x0ec142…09f3c9
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0xadca66…8627b2
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0x3a4687…e72883
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0x2ea284…527b23
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0x8f8265…7cfa8f
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0x10c751…2a2d68
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0xe2c32f…9c8865
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0x5f566b…9ff129
0xc485…2d1e0x5765…ed10BaseBase$0.001100%coinbase89d ago0xf7fafd…085dd3
0xc485…2d1e0x5765…ed10BaseBase$0.004100%coinbase89d ago0x8926ef…13cd63
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase89d ago0x7befa2…74b31c
0xc485…2d1e0x5765…ed10BaseBase$0.004100%coinbase89d ago0x6adf5b…99658a
0xc533…2d7a0x5765…ed10BaseBase$0.00170%0x2772…8c1789d ago0x97eb41…685fa4
0xc533…2d7a0x5765…ed10BaseBase$0.00170%0x2772…8c1789d ago0x793abf…e72c6f
0x8b86…80ac0x5765…ed10BaseBase$0.00170%0x2772…8c1790d ago0xe5aec3…301aa2
0x8b86…80ac0x5765…ed10BaseBase$0.00170%0x2772…8c1790d ago0x6830bd…002251
0x8b86…80ac0x5765…ed10BaseBase$0.00170%0x2772…8c1790d ago0x540ecf…6bcb38
0xc533…2d7a0x5765…ed10BaseBase$0.00170%0x2772…8c1792d ago0x70e2f6…f896af

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.