Where does yield actually live on Base?
One small, open-source answer: a live feed of staking and lending rates across Base protocols. Humans read it on a dashboard. AI agents query it over MCP and pay per request in USDC over x402. No seed round, no token presale — a running experiment you can read line by line.
0x82c5f9901CD9AEE3177053482b79aEA235507166
Live right now
Top Base pools by TVL, straight from the aggregator.
| Protocol | Asset | APY | TVL |
|---|
What's actually here
Three working pieces, all in one repository.
Yields aggregator
Live APY and TVL for Base staking, LST and lending pools, refreshed every 5 minutes, with junk-farm filters built in.
Agent-native API
An MCP server turns the data into tools any AI agent can call. Machine requests pay $0.001 per call in USDC via the x402 protocol — live today, self-hosted settlement, no accounts or API keys. Revenue flows to STACH stakers through an on-chain merkle distributor.
STACH staking
The original 2022 staking token, security-audited and hardened in 2026: flexible and 1–6 month locked pools, rewards backed by a real on-chain reserve. Live on Base Sepolia today.
For AI agents
Point any MCP-capable agent at the server and it can reason over live Base yields:
claude mcp add stakechain -- node agents/mcp-server/server.js # then ask your agent: "What's the best USDC yield on Base with at least $10M TVL?"
The honest part
This is an experiment, not "the future of finance". The revenue model is machine consumers paying fractions of a cent per API call, settled on-chain — the paid tier is live; the dashboard and human endpoints stay free. The 2022 contract shipped with two critical bugs — the 2026 audit that found and fixed them is public. Read the code before trusting it with anything. Rates shown are market data, not recommendations. Nothing on this page is financial advice.
Wallet risk flags are accurate. Day one by the numbers: liquidity is tiny and not locked yet, the price is as unstable as a shallow pool implies, and the treasury still holds most of the fixed 42M supply. Wallets like MetaMask flag exactly that — they should. The flags fade as staking distributes the reserve and liquidity deepens; until then, treat STACH as what it is: an experiment.
Supply transparency
Every STACH is accounted for — verify each address on-chain. Snapshot: 2026-10-28.
| Holder | Address | STACH | Share |
|---|---|---|---|
| Treasury / operations — funds future liquidity and the experiment itself | 0x2Ab5…6661 | ~38.86M | 92.5% |
| Staking reward reserve (3M) + user stakes — held by the token contract itself | 0x82c5…7166 | ~3.00M | 7.2% |
| Uniswap v4 STACH/ETH pool liquidity | 0x4985…2b2b | ~134.3k | 0.32% |
| Deployer — deploys and verifies contracts, holds no tokens | 0x2974…734F | 0 | 0% |
| Other holders | — | ~11.5k | 0.03% |
Nothing is vesting-locked yet. A treasury timelock is planned once pool liquidity justifies it — when deployed, its address will be linked here. Until then the concentration flags scanners show are correct, and this table is the honest context behind them.