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BeliefState Compare Beliefs
x402
BeliefState Compare Beliefs is a paid API for AI agents from beliefstate.ai, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-29).
Compares two analyst belief/thesis records side-by-side, highlighting similarities, divergences, and key differentiators as of a specified date.
Price / call$0.5
Success—
StatusUnknown
How this service works
The first AI-powered platform for top analyst research. Get theses from top analysts, dated evidence, and available outcomes for your AI.
Output
Returns a structured JSON envelope (schema_version 1) containing a generated_at timestamp, an as_of date reflecting the point-in-time requested, and a detailed comparison of the two analyst beliefs including thesis divergences, evidential differences, and key differentiating assumptions.
Example use cases
Bull vs bear analyst thesis comparison
“Compare these two BeliefState analyst beliefs on Nvidia — the bullish AI infrastructure thesis (belief ID 11111111-aaaa-4bbb-8ccc-dddddddddddd) versus the bearish margin compression thesis (belief ID 22222222-bbbb-4ccc-8ddd-eeeeeeeeeeee) — focusing on revenue growth assumptions, as of January 1st 2026.”
Portfolio manager research divergence review
“On BeliefState, compare the two analyst positions I'm tracking on Apple's services segment — belief 33333333-cccc-4ddd-8eee-ffffffffffff and belief 44444444-dddd-4eee-8fff-000000000000 — and focus on recurring revenue durability, as of July 15th 2025.”
Historical point-in-time belief comparison
“Go back to March 1st 2025 and compare the two analyst beliefs on interest rate sensitivity for bank stocks — belief 55555555-eeee-4fff-8000-111111111111 versus belief 66666666-ffff-4000-8111-222222222222 — and focus on net interest margin forecasts.”
Technical details
Endpoint
POSThttps://beliefstate.ai/v1/research/compare_beliefs?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a structured, AI-generated side-by-side comparison of two specific analyst theses or beliefs indexed on BeliefState, especially when point-in-time accuracy matters (via the as_of parameter) or when you want to focus the comparison on a specific analytical dimension. Prefer this over manually reading two separate research reports when you need a synthesized divergence analysis with dated evidence.
Side effects
- Invalid UUID format for belief_id or compare_to_belief_id returns 400 validation error
- Belief IDs that do not exist in the platform return 404 not found
- as_of timestamp outside available data range may return empty or partial comparison
- Malformed date-time string for as_of field fails schema validation
- Payment of 0.5 USDC not completed results in 402 Payment Required
- comparison_focus string exceeding 500 characters triggers validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-10-24T00:00:00.000Z",
"generated_at": "2026-10-24T00:00:00.000Z",
"schema_version": "1"
}
}Tags
x402
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