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Observed Surface Comparison Facts API
x402
Observed Surface Comparison Facts API is a paid API for AI agents from kari.mayim-mayim.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns comparison facts about observed surfaces, likely physical or material surface attributes analyzed side by side
Price / call$0.01
Success—
StatusUnknown
How this service works
Observed Surface Comparison Facts API
Output
A set of factual comparison data points about the observed surfaces provided, including measured differences and attribute comparisons between the surfaces in question
Example use cases
Example prompt
“Can you compare these two observed surfaces and give me the factual differences between them — like texture, reflectivity, and any other measured attributes you can pull?”
Technical details
Endpoint
POSThttps://kari.mayim-mayim.com/api/bazaar/surface_comparison_factsWhen to prefer
Use this endpoint when you need factual, data-driven comparison results between two or more observed surfaces, particularly when working with physical material analysis or surface attribute datasets in a lightweight pay-per-call model
Side effects
- Missing or invalid surface identifiers returns 400 error
- Surfaces not found in observation dataset returns 404
- Malformed POST body returns validation error
- Payment not included or insufficient USDC returns 402
Input
{
"input": {
"body": {
"rail": "surface_comparison",
"limit": 5,
"agentId": "test-agent-qa-001",
"goalType": "comparison_analysis",
"surface_a": "polished_steel_sample_001",
"surface_b": "brushed_aluminum_sample_002",
"domainHint": "material_surfaces",
"candidateIntentGroup": "surface_attributes",
"comparison_attributes": [
"texture",
"reflectivity",
"roughness",
"finish_quality"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"query": {
"limit": 5,
"goalType": "comparison_analysis",
"candidateIntentGroup": "surface_attributes"
},
"features": [
"observation_provenance.v1",
"protocol_roles.v1",
"verification_cost_summary.v1"
],
"surfaces": [],
"limitations": [
"Observation facts only.",
"Not a recommendation.",
"Not a routing decision.",
"Unassessed attempts are not failures.",
"Display order is not a recommendation.",
"Surface identifiers are observation keys, not provider endorsements.",
"Missing observations do not imply failure or unsafety.",
"Observation provenance is reporter identity provenance only, not report truth.",
"key_control_verified does not mean trusted, certified, or reliable.",
"Verification cost summary is sdk-reported and not server-metered.",
"Protocol roles are observed capability metadata, not proof of safety or settlement."
],
"not_a_verdict": true,
"schema_version": "ln_church.surface_comparison_facts.v0",
"final_authority": "local_runtime",
"payment_observed": true,
"query_resolution": {
"note": "candidateIntentGroup filtering requires observed_intent_claims or provider_declared_intent_hints in the source read model.",
"goal_type_filter_applied": true,
"domain_hint_filter_applied": false,
"candidate_intent_group_filter_applied": true
},
"not_payment_proof": true,
"not_a_recommendation": true,
"payment_receipt_present": true
}Schema · Response
{
"type": "json",
"example": {
"surfaces": [],
"not_a_verdict": true,
"schema_version": "ln_church.surface_comparison_facts.v0",
"final_authority": "local_runtime",
"not_payment_proof": true,
"not_a_recommendation": true
}
}Tags
x402
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