Verifiable, portable AI memory. Optional vault: encrypted on your machine, 12 words only you hold.
Connect Runs on your machine
claude mcp add chainmemory -e CHAINMEMORY_API_KEY=<CHAINMEMORY_API_KEY> -e CHAINMEMORY_SEED_PHRASE=<CHAINMEMORY_SEED_PHRASE> -e CHAINMEMORY_API_BASE=<CHAINMEMORY_API_BASE> -e CHAINMEMORY_MODELS_DIR=<CHAINMEMORY_MODELS_DIR> -e CHAINMEMORY_ALLOW_FULL=<CHAINMEMORY_ALLOW_FULL> -e AICHAIN_KEY=<AICHAIN_KEY> -e AICHAIN_RPC=<AICHAIN_RPC> -- npx -y [email protected]{
"mcpServers": {
"chainmemory": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CHAINMEMORY_API_KEY": "<CHAINMEMORY_API_KEY>",
"CHAINMEMORY_SEED_PHRASE": "<CHAINMEMORY_SEED_PHRASE>",
"CHAINMEMORY_API_BASE": "<CHAINMEMORY_API_BASE>",
"CHAINMEMORY_MODELS_DIR": "<CHAINMEMORY_MODELS_DIR>",
"CHAINMEMORY_ALLOW_FULL": "<CHAINMEMORY_ALLOW_FULL>",
"AICHAIN_KEY": "<AICHAIN_KEY>",
"AICHAIN_RPC": "<AICHAIN_RPC>"
}
}
}
}{
"mcpServers": {
"chainmemory": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CHAINMEMORY_API_KEY": "<CHAINMEMORY_API_KEY>",
"CHAINMEMORY_SEED_PHRASE": "<CHAINMEMORY_SEED_PHRASE>",
"CHAINMEMORY_API_BASE": "<CHAINMEMORY_API_BASE>",
"CHAINMEMORY_MODELS_DIR": "<CHAINMEMORY_MODELS_DIR>",
"CHAINMEMORY_ALLOW_FULL": "<CHAINMEMORY_ALLOW_FULL>",
"AICHAIN_KEY": "<AICHAIN_KEY>",
"AICHAIN_RPC": "<AICHAIN_RPC>"
}
}
}
}{
"servers": {
"chainmemory": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CHAINMEMORY_API_KEY": "<CHAINMEMORY_API_KEY>",
"CHAINMEMORY_SEED_PHRASE": "<CHAINMEMORY_SEED_PHRASE>",
"CHAINMEMORY_API_BASE": "<CHAINMEMORY_API_BASE>",
"CHAINMEMORY_MODELS_DIR": "<CHAINMEMORY_MODELS_DIR>",
"CHAINMEMORY_ALLOW_FULL": "<CHAINMEMORY_ALLOW_FULL>",
"AICHAIN_KEY": "<AICHAIN_KEY>",
"AICHAIN_RPC": "<AICHAIN_RPC>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
CHAINMEMORY_API_KEYRequired, secret | ChainMemory API key. REQUIRED for every tool except chainmemory_seal. Get one at https://faucet.chainmemory.ai |
CHAINMEMORY_SEED_PHRASEOptional, secret | 12-word BIP-39 phrase for the blind vault. Optional: without it the server works exactly as before. With it, sealed:true encrypts a memory on your machine and computes its search vector here, so sealed memories can still be found, and searches send the query's vector instead of its text. Generate o… |
CHAINMEMORY_API_BASEOptional | API base URL (default: https://api.chainmemory.ai) |
CHAINMEMORY_MODELS_DIROptional | Folder for the 45 MB search model used with the blind vault (default: ~/.chainmemory/models). Downloaded once from models.chainmemory.ai and checked against its SHA-256 anchored on ChainMemory's chain. |
CHAINMEMORY_ALLOW_FULLOptional | Set to 1 to let get_project_brief return the FULL level (addresses, ports, server paths and security rules) when you ask for it. Leave it empty to keep every brief at the public level, which is safe to paste anywhere. Works only with the owner's key, and ChainMemory logs every full-level request. |
AICHAIN_KEYOptional, secret | NOT NEEDED for normal use — leave it empty. Only the chainmemory_seal tool reads it, to sign a contract call yourself instead of letting the API anchor the memory (which chainmemory_remember already does). If you do set it, it is a wallet private key: use a dedicated wallet holding only a few AIC,… |
AICHAIN_RPCOptional | RPC endpoint used only by chainmemory_seal (default: https://rpc.chainmemory.ai). Leave it empty unless you set AICHAIN_KEY. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 10 Oct 2026 |
| Last updated | 10 Oct 2026 |
| Registry name | io.github.chaelynet/chainmemory |
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