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JP Data API – Persistent Key-Value Memory Read
x402
JP Data API – Persistent Key-Value Memory Read is a paid API for AI agents from jp-data-api-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Retrieves a previously stored value from persistent key-value memory by namespace and key, enabling AI agents to recall long-term state across sessions.
Price / call$0.001
Success—
StatusUnknown
How this service works
Retrieve a value previously stored via /memory/set. Persistent key-value memory for AI agents — no signup, pay per read. Use for agent long-term memory, task state, resuming work across sessions.
Output
Returns the value previously stored at the specified namespace and key, enabling the agent to reconstruct prior task state, resume interrupted workflows, or access saved data from earlier sessions.
Example use cases
Example prompt
“Can you read back the value I stored in my agent's persistent memory under namespace 'project-alpha' with key 'last-completed-step'?”
Technical details
Endpoint
GEThttps://jp-data-api-production.up.railway.app/memory/getWhen to prefer
Use this endpoint when an AI agent needs to recall previously stored state, task progress, or data across sessions without setting up a dedicated database. Ideal for lightweight, pay-per-read persistent memory where no signup or infrastructure management is required. Prefer this over general-purpose databases when cost-per-call micro-billing via x402 is acceptable and the data was stored using the companion /memory/set endpoint on the same service.
Side effects
- Key or namespace not found — returns an error or null if the key was never set or has expired
- Missing required query parameters (ns or key) — returns a 400-level validation error
- Payment failure — request rejected if the $0.001 USDC x402 payment is not included or invalid
- Stale or overwritten data — if another agent session overwrote the key, the returned value may not match expectations
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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