Roundhouse

api.signalfuse.co

Returns an individual arena VWAP reversion strategy signal for a crypto symbol.

DataLiveeip155:8453Exactvia facilitator:dexter
https://api.signalfuse.co/v1/arena/vwap_reversion/BTC
Calls · 30d
9↑ 15%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$1.36
Verified settled volume
1,365 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xCa87aDbCffdf6539A387783fEF17A91dbaBEEF52

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — 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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "price": "varies",
  "endpoint": "/v1/arena/vwap_reversion/BTC",
  "how_to_pay": {
    "option_1": {
      "docs": "https://api.signalfuse.co/.well-known/x402",
      "method": "x402 micropayment",
      "protocol": "Attach USDC payment on Base (eip155:8453) per x402 spec"
    },
    "option_2": {
      "method": "Credit token",
      "step_1": "POST https://api.signalfuse.co/v1/credits/trial with {\"wallet\": \"0x...\"}  (5 free credits)",
      "step_2": "Add header: x-credit-token: <token from step 1>",
      "step_3": "Retry this request"
    },
    "option_3": {
      "url": "https://signalfuse.co/play",
      "method": "Browser playground (no setup)",
      "description": "Try every paid endpoint from your browser. 25 free calls per day, no wallet, no signup."
    }
  },
  "playground_url": "https://signalfuse.co/play",
  "sample_response": {
    "score": 0.82,
    "signal": "long",
    "sl_pct": "[paid]",
    "symbol": "BTC",
    "tp_pct": "[paid]",
    "reasoning": "[paid]",
    "strategy_id": "vwap_reversion",
    "hold_time_sec": "[paid]",
    "strategy_name": "VWAP Reversion"
  },
  "free_alternatives": {
    "/v1/health": "Service status — free",
    "/v1/regime/preview": "Regime + confidence (no reasoning) — free",
    "/v1/arena/leaderboard": "Strategy performance — free"
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xCa87…EEF52. The signed payment is good for 5 minutes.

Paid to
0xCa87…EEF52
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
Buys
Individual arena strategy signal
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xCa87aDbCffdf6539A387783fEF17A91dbaBEEF52",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.signalfuse.co/v1/arena/vwap_reversion/BTC",
    "description": "Individual arena strategy signal",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "GET",
        "schema": {
          "type": "object",
          "required": [
            "strategy_id",
            "symbol"
          ],
          "properties": {
            "symbol": {
              "enum": [
                "BTC",
                "ETH",
                "SOL",
                "DOGE"
              ],
              "type": "string",
              "default": "BTC",
              "description": "Crypto asset ticker (path parameter)"
            },
            "strategy_id": {
              "enum": [
                "ema_5_breakout",
                "rsi_7_extremes",
                "rsi_reversion_swing",
                "vwap_reversion"
              ],
              "type": "string",
              "default": "vwap_reversion",
              "description": "Strategy identifier (path parameter)"
            }
          }
        },
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "score": 0.82,
          "signal": "long",
          "sl_pct": 0.008,
          "symbol": "BTC",
          "tp_pct": 0.015,
          "reasoning": "Bollinger band squeeze with volume expansion",
          "strategy_id": "vwap_reversion",
          "hold_time_sec": 300,
          "strategy_name": "VWAP Reversion"
        }
      }
    },
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-09-23 17:13Z
Last indexed by Roundhouse
2026-09-24 07:15Z
Last enriched (probe, favicon, geo)
2026-09-16 20:45Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. 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.signalfuse.co 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.signalfuse.co'
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.signalfuse.co/v1/arena/vwap_reversion/BTC, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.