Acta — Verifiable Agent Memory

MCP server for Acta — verifiable, structured, portable agent memory.

Every write produces an Ed25519-signed ledger receipt (aea_id) verifiable offline with no server and no database.

• MCP Registry name: mcp-name: io.github.Kylewilson04/acta-mcp

Tools

Tool	Description
acta_write_intent	Store a standing or task intent
acta_write_claim	Append a signed subject→predicate→object claim
acta_commit_memory	Store a note/observation/document chunk
acta_read_context	Compile a signed context bundle (intents + claims + memory)
acta_get_state_root	Current signed ledger state root
acta_verify	Verify the full ledger chain offline

Install

Download the binary from Releases and add to your MCP config:

{
  "mcpServers": {
    "acta": {
      "command": "/path/to/acta-mcp",
      "env": {
        "ACTA_BASE": "http://localhost:8088",
        "ACTA_TENANT": "my-agent"
      }
    }
  }
}

Environment variables

Variable	Default	Description
ACTA_BASE	http://localhost:8088	Acta server URL
ACTA_TENANT	default	Tenant / agent identifier
ACTA_API_KEY	—	API key when server auth is enabled

Verification

curl -s $ACTA_BASE/v1/verify/<aea_id>
# → { "found": true, "chain_valid": true, "signatures_valid": true }

curl -s $ACTA_BASE/v1/ledger/export | acta-verify -
# → RESULT: VALID