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AgentKV Read (GET) — Encrypted Key-Value Lookup
x402
AgentKV Read (GET) — Encrypted Key-Value Lookup is a paid API for AI agents from api.agentx402.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Reads a value from the agent-native encrypted key-value store for a specific key, billed per-request via x402 micropayment with no API key required.
Price / call$0.003
Success—
StatusUnknown
How this service works
Agent-native encrypted key-value store, paid per request over x402 — no signup, no API key. The payer's wallet (or an ak_ account key) is the namespace; values are client-side encrypted. Write $0.005, read $0.003; prepay $1 = 10,000 credits at 1/10 the per-op price (POST /v1/credits/deposit). SDK: npm i @agentkv/client. Docs: https://agentx402.ai
Output
Returns the client-side encrypted value stored at the requested key within the caller's wallet-namespaced partition. The response contains the raw (encrypted) payload that was previously written to that key, which the client can decrypt locally. If the key does not exist, an appropriate not-found response is returned.
Example use cases
Restore agent session state
“Grab the session config I stored earlier under the key 'session-context-42' in AgentKV and load it back into the current workflow.”
Load saved API credentials
“Retrieve the credentials I saved in my AgentKV store under 'openai-key-backup' so I can use them for the next task.”
Check persisted agent preference
“Look up the user preference I stored in AgentKV under 'user-pref-timezone' and tell me what timezone my agent was configured to use.”
Technical details
Endpoint
GEThttps://api.agentx402.ai/v1/kv/canary-kv-1785255879When to prefer
Choose this endpoint when an AI agent needs lightweight, pay-per-use persistent memory without any signup, API key management, or traditional account infrastructure. It is ideal for stateless agents that need to recall previously written values (configs, credentials, session state) using only a crypto wallet for identity and payment. Prefer it over traditional KV stores when the agent operates in a trustless, x402-enabled environment and encryption at rest is required by default.
Side effects
- Key not found — returns 404 if the key has never been written or has been deleted
- Insufficient credits — payment rejected if wallet has no balance and no prepaid credits remain
- Invalid key path — malformed or unauthorized key returns 400 or 403
- Payment failure — x402 micropayment not processed, request blocked
- Namespace mismatch — accessing a key outside the caller's wallet namespace returns 403
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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