Chamber
Two-key JSON (and binary) seal. You store the blob. Opening needs both shares plus the host master secret. Either share alone cannot recover the message key.
Product: https://www.slidphilabs.com/chamber
pypi: json-chamber 1.4.1
MCP: npx -y json-chamber-mcp
Format: chamber-v1 Β· algo chamber-aes256gcm-phi Β· AAD chamber-v1
Construction: 32-byte AES-256 key, Ο-split into Share K and Share R, word-encoded. Ciphertext is AES-GCM. License is to seal new secrets; already-sealed objects open with the keys, not another payment.
from json_chamber import cloak_json
sealed = cloak_json({"api_key": "sk-live-...", "webhook": "https://example.com/hook"})
Pay
$9/mo SKU chamber-month Β· $99/yr SKU chamber-year. Agents: POST /api/x402-products. Humans: /pay. Dual license AGPL-3.0-or-later or commercial grant.
