The decentralized African oracle network
Africa's real economy data,
onchain.
Equities, currencies, commodities and real-world assets from across Africa, delivered through decentralized oracle networks, validated with AI, and cryptographically verified onchain.
- Data classes
- 6 and growing
- Every value
- Independently signed
- Delivery
- 24/7, on demand
- Chain-agnostic
- Base · Avalanche · Stacks
African assets are ready for onchain finance. Their data is not.
Lending, trading and settlement onchain all need one thing first: prices a contract can trust. For African markets, that data has never existed onchain. Tachi builds it.
Africa's market data is locked offchain
Share prices, exchange rates and commodity auctions live in exchange systems and spreadsheets that no blockchain can read.
Tachi brings it onchain
Independent nodes read local exchanges and markets directly and publish every value onchain, around the clock.
Data you have to take on trust
A single provider can be late, wrong or offline, and a smart contract has no way to check.
Signed and verified by contracts
Every value carries signatures from independent nodes. Contracts check the quorum, freshness and sequence before using it.
Built for one chain at a time
Teams rebuild data pipelines for every network they deploy to, and African assets stay stuck on whichever chain got there first.
One dataset, every chain
The same signed reports are verified natively on Base, Avalanche and Stacks, with more chains coming.
Four layers, one oracle network.
Tachi is built to bring any African data onchain, on any chain, with checks you can verify and privacy where the data needs it.
Chain-agnostic delivery
One signed dataset, verified natively on every chain. Live on Base, Avalanche and Stacks, with more coming.
Decentralized signing
Independent nodes read and sign every value, and a quorum decides what lands onchain.
AI validation
Models score every source for credibility, flag anomalies and outliers before any node signs, and run predictive analysis on market trends.
Privacy-preserving
Zero-knowledge proofs confirm a fact, such as collateral above a level or KYC passed, without revealing the data behind it.
The data Africa runs on, readable by any contract.
Share prices in Nairobi. Cocoa in Accra. Currencies from Cairo to Johannesburg. Bonds, property and reserves. Tachi turns the continent's local data into signed values that blockchains can use and verify.
Listed equities and market status
African FX against the dollar
Auction and spot prices
Valuations, yields and reserves
- 01 · Source
Read at the source.
A decentralized network of independent nodes reads exchanges, currency markets, auctions and asset registries directly. No middleman reshapes the data on its way in.
Every value an onchain economy needs.
One network, one verification model, across six classes of local data.
Equities
Listed share prices and market status, in local currency and dollars.
Live · Kenyan equities on testnet
Currencies
African currencies against the dollar, for pricing, payments and settlement.
Live · KES/USD
Commodities
Auction and spot prices for the goods the continent trades.
Fixed income
Treasury bills, government and corporate bonds, and the yield curves they trace.
Real estate
Property valuations, rental income and REIT net asset values.
Proof of reserve
Attested reserves and custody balances behind asset-backed tokens.
Two ways to read the same signed data.
Every value Tachi signs can reach your contract either way. Pick the one that fits how often you need it.
Feeds
Values written onchain around the clock, ready to read in a single call.
Streams
A fresh signed report carried inside your own transaction and checked by the contract on the spot.
Don't trust the feed. Verify it.
Tachi is decentralized by design. Its security comes from rules anyone can check onchain, not from trusting an operator. Every value shows its work.
Independent signers
Separate nodes, separate keys, separate reads of the source.
Signed observations
Every value carries signatures any contract can check.
Quorum
A value lands only when enough signers agree.
Replay protection
A signed report can never be submitted twice.
Freshness limits
Stale data is rejected, never used.
Forward-only sequence
Older data can never overwrite newer data.
Rules onchain
Every acceptance rule lives in the contracts, readable by anyone.
One signed dataset. Every chain.
Chain-agnostic. Live on Base, Avalanche and Stacks, with more coming. The same signed values are verified natively wherever your contracts live. Read the latest value in one call, or verify a fresh report inside your own transaction.
Base
Coinbase's Ethereum L2
Avalanche
High-throughput EVM
Stacks
Smart contracts secured by Bitcoin
What runs on Tachi data.
Any onchain product that needs to know what African markets are doing. The first one is already live.
Tokenized stocks
Trade Nairobi-listed shares as tokens, 24/7, at prices signed by the network.
Open the trading appLending and collateral
Borrow against African equities and assets, valued by feeds a contract can verify.
Payments and stablecoins
Settle and convert with live African exchange rates against the dollar.
Funds and real-world assets
Publish fund NAVs, property valuations and reserves for tokenized products.
Agriculture and insurance
Pay out and price contracts on commodity and auction prices from local markets.
Analytics and dashboards
Build market views on a public, signed history of African prices.
DevelopersBuild on local data.
Read a value in one call, or verify a fresh signed report in the same transaction. One feed interface on every chain, with freshness and sequence checks built in.
contract LoanCollateral {
oracle feed = Feed("SCOM/USD");
fn collateralValue(units) {
let v = feed.latest();
// signatures and quorum already checked
require(now - v.timestamp < MAX_AGE);
return units * v.price;
}
}
Bring Africa's data onchain.
Build lending, trading and settlement on local data you can prove.