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Turboshop Ephemeral Key Vault
x402
Turboshop Ephemeral Key Vault is a paid API for AI agents from turboshop.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-19).
Issues, rotates, signs with, verifies, and revokes short-lived cryptographic session keys (secp256k1, Ed25519, HMAC-SHA256) with verifiable rotation chain attestation for AI agents.
Price / call$0.05
Success—
StatusUnknown
How this service works
Real working cryptographic microservice that issues, rotates, signs with, verifies, and revokes short-lived ephemeral session keys (secp256k1 EVM, Ed25519, HMAC-SHA256) with verifiable rotation chain attestation.
Output
Returns an ephemeral key object including a key_id, the public key or HMAC token, expiry timestamp, rotation chain attestation (linking to previous key if rotated), and for sign/verify actions a signature or boolean verification result. Status queries return the current state and remaining TTL of the specified key.
Example use cases
Fresh session key for agent swarm
“Issue a new Ed25519 ephemeral key for my agent 'orchestrator-01' with a 30-minute TTL so it can authenticate securely with its sub-agents during this run.”
Sign a task payload before dispatch
“Sign the payload 'task:process-batch-42' using the current HMAC-SHA256 ephemeral key for agent 'worker-agent-9' so I can verify it wasn't tampered with downstream.”
Rotate key mid-session with revocation
“My secp256k1 session key 'key-xyz789' for agent 'trader-bot' is about to expire — rotate it with a fresh one, set a 3600-second TTL, and automatically revoke the old key.”
Technical details
Endpoint
GEThttps://turboshop.ai/api/v1/products/prod-ephemeral-key-vault/buy?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent or multi-agent swarm needs short-lived, cryptographically verifiable session keys with built-in rotation and revocation — especially for EVM-compatible (secp256k1) or Ed25519 use cases. Prefer it over static key stores when ephemeral, auditable key lifecycle management with rotation-chain attestation is required.
Side effects
- Invalid or expired previous_key_id returns 404 or key-not-found error
- Unsupported algorithm enum value returns validation error
- TTL out of allowed range returns parameter error
- Payload missing when action is sign or verify returns missing-parameter error
- Payment failure (x402) prevents key issuance
- Agent_id not provided when required returns auth/session error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| action | string | Vault operation to execute (default: rotate) |
| payload | string | Optional payload string to sign or verify |
| agent_id | string | Calling agent or session identifier |
| algorithm | string | Cryptographic key algorithm (default: secp256k1) |
| ttl_seconds | integer | Ephemeral key TTL in seconds (default: 3600) |
| previous_key_id | string | Optional key_id to rotate from and automatically revoke |
Tags
x402
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