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Agent Memory Key-Value Store — Read/List Keys
x402
Agent Memory Key-Value Store — Read/List Keys is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Reads a value or lists all keys in a namespaced, token-protected key-value memory store for AI agents
Price / call$0.003
Success—
StatusUnknown
How this service works
Agent Memory: read a stored value by key, or omit key to list all keys in your namespace. Send { ns, token, key? }.
Output
Returns the stored value associated with the given key in the specified namespace, or if no key is provided, returns a list of all keys present in that namespace.
Example use cases
Retrieve cached trading signal
“Fetch the value stored under the key 'eth_signal_20240601' in my namespace 'trading-bot' using my token — I want to check what signal we cached earlier before placing the next trade.”
List all saved agent state keys
“List every key stored in my namespace 'defi-agent-session' so I can see what state data my agent has saved so far — use my secret token to authenticate.”
Restore agent context after restart
“Pull the value for the key 'last_portfolio_snapshot' from my namespace 'portfolio-tracker' using my secret token so I can restore where the agent left off.”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/memory/getWhen to prefer
Use this endpoint when an AI agent needs to retrieve previously stored state, cached data, or configuration values from a persistent namespaced key-value store — especially in agentic workflows where memory continuity across sessions or steps is required.
Side effects
- Invalid or missing token returns 401 unauthorized
- Namespace not found returns empty result or error
- Key does not exist returns null or not-found response
- Malformed request body (missing required fields) returns 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| nsrequired | string | Your namespace |
| key | string | Key to read; omit to list keys |
| tokenrequired | string | Your secret token |
Tags
x402
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