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
316↑ 213%
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
395 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
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x2fad5c…d5fdb2
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0xcc3105…dded1c
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x396021…131bef
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x837935…0b3938
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x9a6990…1f4331
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x79911f…6ead18
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x2fae38…cd0ece
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0xe58c1e…1c9e92
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x5f6588…79527c
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x92f479…33a28d
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x83e6c5…3090d1
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x74f538…7fab91
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x64bc77…3cea45
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x1aed29…1dd930
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x4bda52…245eb6
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x8afc82…1d21d7
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x7aaf06…32b801
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x302216…b1e2dc
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0xda97e6…1ce7ff
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x0d4039…db9d73
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x2e06f7…0d151c
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0xbfc501…80e9c1
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x05d54b…d504d6
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0x6741fa…70d005
0x5738…badf0x5765…ed10BaseBase$0.00170%0x2772…8c1779d ago0xccc6b1…096fcf

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.