signals.nsgoods.org
Walk-forward replay of the live multi-timeframe strategy over recent 1m history: win-rate and average forward return per BUY/SELL signal. Lets an agent measure recent edge before subscribing to the live signal stream (USDC on Base).
OtherLiveeip155:8453Exactvia cdp
Settlements · 30d
206↑ 150%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$9.37
Verified settled volume
297 settlements proven x402 by their on-chain EIP-3009 marker.
$0.250
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 2026-06-21 05:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xc87a06DEE4c0E85912296002617120BBfd5EF990The 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",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
"amount": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxAmountRequired": "250000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://signals.nsgoods.org/backtest",
"mimeType": "application/json",
"description": "Walk-forward replay of the live multi-timeframe strategy over recent 1m history: win-rate and average forward return per BUY/SELL signal. Lets an agent measure recent edge before subscribing to the live signal stream (USDC on Base). Free preview: GET /signals/preview"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pair": "BTC/USD",
"step": 5,
"forward": 30
}
},
"output": {
"type": "json",
"example": {
"pair": "BTC/USD",
"sample": [
{
"ts": "2026-06-13T18:25:00",
"entry": 64120.4,
"future": 64235.1,
"signal": "BUY",
"return_pct": 0.179
}
],
"best_pct": 1.42,
"worst_pct": -0.71,
"generated_at": "2026-06-13T21:00:00+00:00",
"step_minutes": 5,
"win_rate_pct": 64.3,
"window_hours": 12,
"avg_return_pct": 0.18,
"forward_minutes": 30,
"signals_evaluated": 14
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"pair": {
"type": "string",
"default": "BTC/USD",
"description": "Kraken */USD pair, e.g. BTC/USD, ETH/USD."
},
"step": {
"type": "integer",
"default": 5,
"maximum": 15,
"minimum": 1,
"description": "Walk-forward step in 1m bars (1-15). Smaller = denser sample but slower."
},
"forward": {
"type": "integer",
"default": 30,
"maximum": 120,
"minimum": 5,
"description": "Forward window in 1m bars to score each signal against (5-120)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"pair",
"signals_evaluated",
"generated_at"
],
"properties": {
"pair": {
"type": "string"
},
"sample": {
"type": "array",
"items": {
"type": "object"
}
},
"best_pct": {
"type": [
"number",
"null"
]
},
"worst_pct": {
"type": [
"number",
"null"
]
},
"generated_at": {
"type": "string",
"format": "date-time"
},
"step_minutes": {
"type": "integer"
},
"win_rate_pct": {
"type": [
"number",
"null"
]
},
"window_hours": {
"type": "number"
},
"avg_return_pct": {
"type": [
"number",
"null"
]
},
"forward_minutes": {
"type": "integer"
},
"signals_evaluated": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.25USDC≈ $0.25 USD
on Base · exact scheme
Pay 0.25 USDC on Base to 0xc87a…EF990. The signed payment is good for 5 minutes.
- Paid to
- 0xc87a…EF990
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 250000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
"amount": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"pair": "BTC/USD",
"sample": [
{
"ts": "2026-06-13T18:25:00",
"entry": 64120.4,
"future": 64235.1,
"signal": "BUY",
"return_pct": 0.179
}
],
"best_pct": 1.42,
"worst_pct": -0.71,
"generated_at": "2026-06-13T21:00:00+00:00",
"step_minutes": 5,
"win_rate_pct": 64.3,
"window_hours": 12,
"avg_return_pct": 0.18,
"forward_minutes": 30,
"signals_evaluated": 14
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"pair": {
"type": "string",
"default": "BTC/USD",
"description": "Kraken */USD pair, e.g. BTC/USD, ETH/USD."
},
"step": {
"type": "integer",
"default": 5,
"maximum": 15,
"minimum": 1,
"description": "Walk-forward step in 1m bars (1-15). Smaller = denser sample but slower."
},
"forward": {
"type": "integer",
"default": 30,
"maximum": 120,
"minimum": 5,
"description": "Forward window in 1m bars to score each signal against (5-120)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"pair",
"signals_evaluated",
"generated_at"
],
"properties": {
"pair": {
"type": "string"
},
"sample": {
"type": "array",
"items": {
"type": "object"
}
},
"best_pct": {
"type": [
"number",
"null"
]
},
"worst_pct": {
"type": [
"number",
"null"
]
},
"generated_at": {
"type": "string",
"format": "date-time"
},
"step_minutes": {
"type": "integer"
},
"win_rate_pct": {
"type": [
"number",
"null"
]
},
"window_hours": {
"type": "number"
},
"avg_return_pct": {
"type": [
"number",
"null"
]
},
"forward_minutes": {
"type": "integer"
},
"signals_evaluated": {
"type": "integer"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-21 05:27Z
- Last indexed by Roundhouse
- 2026-07-17 12:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 11:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service signals.nsgoods.org 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=signals.nsgoods.org' 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://signals.nsgoods.org/backtest, 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.