Store, verify, and manage AI data on the Ethereum blockchain (Base network) using the ERCData standard. Use when an agent needs to store data fingerprints on-chain, verify data integrity, create audit trails, manage access control for private data, or interact with the ERCData smart contract. Supports public and private storage, EIP-712 verification, snapshots, and batch operations.
Store and verify AI-related data on Base mainnet. Public or private, with cryptographic integrity proofs.
# Store public data
uv run {baseDir}/scripts/ercdata-cli.py store \
--type AI_AGENT_MEMORY \
--data "memory hash: abc123" \
--metadata '{"agent":"MyBot","ts":"2026-01-31"}' \
--key $ERCDATA_KEY --contract $ERCDATA_CONTRACT
# Store private data (only you + granted addresses can read)
uv run {baseDir}/scripts/ercdata-cli.py store \
--type AI_AGENT_MEMORY \
--data "secret memory data" \
--private \
--key $ERCDATA_KEY --contract $ERCDATA_CONTRACT
# Read entry
uv run {baseDir}/scripts/ercdata-cli.py read --id 1 --key $ERCDATA_KEY --contract $ERCDATA_CONTRACT
# Verify entry (EIP-712 signature check)
uv run {baseDir}/scripts/ercdata-cli.py verify --id 1 --method eip712 --key $ERCDATA_KEY --contract $ERCDATA_CONTRACT
# Grant access to private entry
uv run {baseDir}/scripts/ercdata-cli.py grant-access --id 2 --to 0xSomeAddress --key $ERCDATA_KEY --contract $ERCDATA_CONTRACT
Set via environment or skill config:
ERCDATA_KEY — Private key for signing transactions (required for writes)ERCDATA_CONTRACT — Contract address on Base mainnetERCDATA_RPC — RPC URL (default: https://mainnet.base.org)Or pass via --key, --contract, --rpc flags.
| Command | What it does |
|---|---|
store | Store data on-chain (add --private for access control) |
read | Read a data entry by ID |
verify | Verify data integrity (eip712 or hash method) |
grant-access | Grant read access to an address (private entries) |
revoke-access | Revoke read access |
register-type | Register a new data type (admin only) |
snapshot | Create a point-in-time snapshot |
info | Get entry info without full data |
getData(). Use for transparency, audit trails.--private): Only the provider, granted addresses, and admin can read. Use for sensitive agent data.Private entries store the same data on-chain but gate getData() access. Note: raw transaction calldata is still visible on-chain explorers. For maximum privacy, encrypt data before storing.
See references/api.md for full contract API, roles, events, and limits.
web3 and eth-account packages (auto-installed by uv)