HALOWERK Agent Tools
Reads one conversion experiment two ways at once. Frequentist: two-proportion test, p value, confidence interval on the absolute lift, and the sample size the requested minimum detectable effect needs at the requested power. Bayesian: Beta-Binomial posteriors, probability the variant is better, expected loss either way, credible intervals - closed form, not sampled, so the numbers repeat exactly. looks_taken carries the adjusted threshold and the rate you actually ran at.
Offering
- Provider
- tools.halowerk.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Data
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://tools.halowerk.com/v1/abtest/evaluate- MIME type
- application/json
- First seen
- 2026-10-16T01:50:10.647Z
- Last seen
- Tags
- X402, agent-tools, Analysis, abtest_evaluate
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
}
]Observed health
- Status
- Healthy
- Latest latency
- 1299 ms
- Average latency
- 805 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 10 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"type": "object",
"required": [
"control",
"variant"
],
"properties": {
"control": {
"type": "object",
"required": [
"visitors",
"conversions"
],
"properties": {
"visitors": {
"type": "integer",
"minimum": 1
},
"conversions": {
"type": "integer",
"minimum": 0
}
},
"description": "Baseline group. conversions may not exceed visitors."
},
"variant": {
"type": "object",
"required": [
"visitors",
"conversions"
],
"properties": {
"visitors": {
"type": "integer",
"minimum": 1
},
"conversions": {
"type": "integer",
"minimum": 0
}
},
"description": "Group under test. conversions may not exceed visitors."
},
"confidence_level": {
"type": "number",
"minimum": 0.5,
"maximum": 0.9999,
"default": 0.95
},
"alternative": {
"type": "string",
"enum": [
"two_sided",
"greater"
],
"default": "two_sided",
"description": "two_sided asks whether the groups differ, greater whether the variant is above the control."
},
"minimum_detectable_effect_rel": {
"type": "number",
"minimum": 0.001,
"maximum": 5,
"default": 0.1,
"description": "Relative effect the test should be able to find, e.g. 0.1 for ten percent above the control rate."
},
"power": {
"type": "number",
"minimum": 0.5,
"maximum": 0.999,
"default": 0.8,
"description": "Probability of finding that effect if it is there."
},
"looks_taken": {
"type": "integer",
"minimum": 1,
"maximum": 100,
"default": 1,
"description": "How often the running test has been evaluated. Above 1 the threshold is adjusted and the real false positive rate is reported."
},
"prior_alpha": {
"type": "number",
"minimum": 0.0001,
"maximum": 1000,
"default": 1,
"description": "Beta prior, successes. 1 with prior_beta 1 is uniform."
},
"prior_beta": {
"type": "number",
"minimum": 0.0001,
"maximum": 1000,
"default": 1,
"description": "Beta prior, failures."
}
}
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"alternative": {
"default": "two_sided",
"description": "two_sided asks whether the groups differ, greater whether the variant is above the control.",
"enum": [
"two_sided",
"greater"
],
"type": "string"
},
"confidence_level": {
"default": 0.95,
"maximum": 0.9999,
"minimum": 0.5,
"type": "number"
},
"control": {
"description": "Baseline group. conversions may not exceed visitors.",
"properties": {
"conversions": {
"minimum": 0,
"type": "integer"
},
"visitors": {
"minimum": 1,
"type": "integer"
}
},
"required": [
"visitors",
"conversions"
],
"type": "object"
},
"looks_taken": {
"default": 1,
"description": "How often the running test has been evaluated. Above 1 the threshold is adjusted and the real false positive rate is reported.",
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"minimum_detectable_effect_rel": {
"default": 0.1,
"description": "Relative effect the test should be able to find, e.g. 0.1 for ten percent above the control rate.",
"maximum": 5,
"minimum": 0.001,
"type": "number"
},
"power": {
"default": 0.8,
"description": "Probability of finding that effect if it is there.",
"maximum": 0.999,
"minimum": 0.5,
"type": "number"
},
"prior_alpha": {
"default": 1,
"description": "Beta prior, successes. 1 with prior_beta 1 is uniform.",
"maximum": 1000,
"minimum": 0.0001,
"type": "number"
},
"prior_beta": {
"default": 1,
"description": "Beta prior, failures.",
"maximum": 1000,
"minimum": 0.0001,
"type": "number"
},
"variant": {
"description": "Group under test. conversions may not exceed visitors.",
"properties": {
"conversions": {
"minimum": 0,
"type": "integer"
},
"visitors": {
"minimum": 1,
"type": "integer"
}
},
"required": [
"visitors",
"conversions"
],
"type": "object"
}
},
"required": [
"control",
"variant"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
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],
"type": "object"
},
"output": {
"properties": {
"example": {
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},
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},
"required": [
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}