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Agent Memory Provenance
x402
Agent Memory Provenance is a paid API for AI agents from phion.systems, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-20).
Binds a memory record to its source identity, observation timestamp, and content hash to establish verifiable provenance
Price / call$0.003
Success—
StatusUnknown
How this service works
Bind a memory record to source identity, observation time and content hash
Output
Returns a signed provenance record that links the memory content to its source identity, observation timestamp, and a cryptographic content hash — enabling downstream agents or auditors to verify the memory's origin and integrity.
Example use cases
Audit trail for agent decisions
“I need to anchor the memory my agent just created about a user's consent decision — bind it to the agent's identity, stamp the exact observation time, and hash the content so we can prove it hasn't been tampered with.”
Provenance for retrieved knowledge
“My agent pulled a fact from an external source and stored it in memory — can you bind that memory record to the source identity and observation timestamp so we have a verifiable chain of custody for it?”
Integrity check for shared agent memories
“Before I share this memory record between agents, I want to lock in a content hash and tie it to the originating agent's identity and the time it was observed, so the receiving agent can verify it hasn't changed.”
Technical details
Endpoint
POSThttps://phion.systems/v1/paid/trust/agent-memory-provenance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to establish verifiable, tamper-evident provenance for a stored memory — particularly in multi-agent environments where memories are shared and their origin or integrity may be disputed. It is preferred over generic logging when cryptographic content hashing and signed source-identity binding are required for auditing or compliance.
Side effects
- Missing or malformed source identity causes binding failure
- Invalid or unparseable observation timestamp returns a validation error
- Content hash mismatch if pre-computed hash conflicts with server-side computation
- Insufficient payment or expired x402 payment token results in 402 rejection
- Empty or null memory content body yields schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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