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Multi-Source Fact Bundle
x402
Multi-Source Fact Bundle is a paid API for AI agents from phion.systems, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).
Bundles observations about a fact from multiple independent sources, exposing where sources agree and disagree
Price / call$0.005
Success—
StatusUnknown
How this service works
Bundle independent source observations while exposing agreement and disagreement
Output
Returns a structured bundle containing each source's individual observation on the queried fact, an explicit agreement or disagreement signal across sources, coverage metadata, and confidence levels — enabling agents to understand not just what sources say but where they converge or diverge.
Example use cases
Conflicting news claim resolution
“I've seen contradictory reports about whether the Fed raised interest rates last week — can you pull in observations from multiple sources and show me where they agree or disagree?”
Product specification cross-check
“Check whether independent sources all say the same thing about the battery capacity of the iPhone 16 Pro — bundle their observations and flag any disagreements.”
Biographical fact verification
“I need to confirm Elon Musk's birth year — gather observations from several independent sources and tell me if they all agree or if any contradict each other.”
Technical details
Endpoint
POSThttps://phion.systems/v1/paid/trust/multi-source-fact-bundle?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to go beyond a single-source lookup and explicitly surface consensus or conflict across independent observations. It is especially valuable when an agent must assess trustworthiness of a claim, detect misinformation, or present a user with a balanced view of what multiple authoritative sources report. Prefer this over single-source retrieval or simple search when the reliability or contested nature of a fact matters to the downstream decision.
Side effects
- Insufficient sources available to form a meaningful bundle — returns low-coverage warning
- Sources return ambiguous or non-comparable observations — disagreement cannot be resolved
- Queried fact is too ambiguous to retrieve consistent observations across sources
- Payment not processed — request rejected with 402 status
- Input schema incomplete or malformed — request rejected with validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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