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
318↑ 225%
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
398 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$0.001100%coinbase110d ago0x884225…514f42
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase110d ago0x354b9f…416f9c
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase110d ago0x8dadf5…09056f
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase110d ago0x0ffab7…d7a0c5
0xc485…2d1e0x5765…ed10BaseBase$0.02100%coinbase110d ago0xad59b8…0d00b8
0xc485…2d1e0x5765…ed10BaseBase$0.005100%coinbase110d ago0xbc8df7…630185
0xfe2d…05570x5765…ed10BaseBase$0.00170%0x2772…8c17110d ago0xf9bb64…f2d1e9
0x7e57…2f090x5765…ed10BaseBase$0.00570%0x2772…8c17111d ago0x4aa313…3ee8cb
0x7e57…2f090x5765…ed10BaseBase$0.00570%0x2772…8c17115d ago0x741243…d10d53
0x7e57…2f090x5765…ed10BaseBase$0.00570%0x2772…8c17119d ago0x87b6fe…bc16c7
0x7e57…2f090x5765…ed10BaseBase$0.00570%0x2772…8c17120d ago0x3e969e…52a0b1
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xbdc85e…b19093
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xb841d3…bc5206
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0x82c66c…28fe83
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xec9bf3…c63c13
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xcc09e0…de688e
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0x00062a…994e51
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xee5883…82b39e
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0x9b1a06…8c5d68
0xc485…2d1e0x5765…ed10BaseBase$0.0270%0x2772…8c17121d ago0xcd0154…f808fa
0xc485…2d1e0x5765…ed10BaseBase$0.00170%0x2772…8c17121d ago0x0be4a9…119ab7
0xc485…2d1e0x5765…ed10BaseBase$0.00170%0x2772…8c17121d ago0xc7303f…086d61
0xc485…2d1e0x5765…ed10BaseBase$0.00170%0x2772…8c17121d ago0xcecfd7…a09b15
0xc485…2d1e0x5765…ed10BaseBase$0.00370%0x2772…8c17121d ago0x2dd44e…76c03f
0xc485…2d1e0x5765…ed10BaseBase$0.00170%0x2772…8c17121d ago0xbaabb0…e76073

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.