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AgentKV Read (GET)
x402
AgentKV Read (GET) 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 an agent-native, client-side encrypted key-value store at a specific key, paid per-request via x402 micropayment
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 stored value associated with the requested key within the caller's wallet-namespaced AgentKV store. The value was encrypted client-side at write time, so the agent must decrypt it locally. Response includes the encrypted blob or decrypted value depending on SDK/client handling. Returns a 402 Payment Required if payment was not attached, or a 404/empty if the key does not exist.
Example use cases
Retrieve persisted agent session state
“Fetch the session config I saved earlier in AgentKV under the key 'canary-kv-1785214918' — my wallet is the namespace, just pay the micropayment and give me the decrypted value.”
Read shared secret between agents
“Pull the shared secret stored at key 'canary-kv-1785214918' in AgentKV — decrypt it on my end and show me what's there.”
Load stored API credentials at runtime
“I saved some credentials in my AgentKV store under 'canary-kv-1785214918' — retrieve and decrypt them so I can use them in my next task.”
Technical details
Endpoint
GEThttps://api.agentx402.ai/v1/kv/canary-kv-1785214918When to prefer
Choose this endpoint when an AI agent needs to read back a value it (or another authorized agent) previously stored, without any signup or API key — just a wallet or ak_ key and a $0.003 USDC micropayment. Ideal for agent memory, shared secrets, runtime configuration, or cross-agent state passing where privacy (client-side encryption) and permissionless access are required. Prefer this over traditional KV stores or secret managers when operating in a serverless, wallet-native, or x402-compatible agent environment.
Side effects
- 402 Payment Required — x402 micropayment header missing or insufficient; agent must attach $0.003 USDC payment
- 404 Not Found — key does not exist in the namespace or namespace mismatch (wrong wallet)
- 401 Unauthorized — ak_ account key invalid or expired
- Decryption failure — client-side: key was written by a different keypair
- Rate limiting or credit exhaustion if using prepaid credit account
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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