Every Project Catalyst grant project at Charli3, 2021 to 2026. Catalyst is Cardano's community treasury. Proposals are voted on by the public and paid out milestone by milestone against proof of delivery, reviewed by an independent team. Every record below is public.
* Funding ran out as of May 2026, when Charli3 ceased operations.
Most recent first. "Closed out" is the date the final milestone's proof of achievement was approved.
A community hackathon for developers building on Charli3 oracles.
An open source SDK for integrating Charli3 oracle feeds.
An end-to-end proof of concept using the oracle validation service to verify e-commerce coupon codes. Nodes check a trusted endpoint, compare it to the on-chain value, and return agreement or a replacement once consensus is reached.
The first L2 partnerchain MVP connected to Cardano. A Substrate chain with 6-second blocks and a custom bridge that brings the data back to Cardano with its security guarantees. Built to solve Cardano's 20-second block time, which was too slow for the data customers needed.
Expanded the free community feeds to off-chain assets and Cardano native tokens, with 12 months of feed operation funded inside the project.
A live API serving aggregated price data from Cardano DEXs, built on the Dendrite SDK.
An independent on-chain, off-chain and security audit of the V3 oracle architecture, with findings resolved and accepted.
The research and design concept for a Substrate side-chain oracle. It became the partnerchain implementation in Fund 12.
The first pull oracle on Cardano. Protocols request a price inside their own user flow, including payment, instead of reading a scheduled push update. Later used to move proof of reserve to on-demand updates for a bank customer.
Dendrite, an MIT-licensed Python SDK that reads prices directly from DEX liquidity pools, weighted precisely, and accounts for transfers between pools before each block update. Built so the oracle network did not depend on stale or corrupt third-party price APIs.
The Oracle Developer Portal: documentation and guides on how to integrate Charli3 feeds.
Expanded the set of free community price feeds.
Free community price feeds on Cardano.
Funded in Fund 14 and started in November 2025. Funding ran out as of May 2026, when Charli3 ceased operations. Completion by external contractors is to be determined.
An open source marketplace and launchpad for oracle feeds. 4 of 6 milestones approved, change request filed March 2026.
Extends the Dendrite SDK from DEX data to lending and peer-to-peer DeFi protocols. 2 of 4 milestones approved.
A chat bot that serves token data and multi-DEX swaps from Dendrite. 2 of 4 milestones approved.
Six proposals under my account did not pass the community vote. Listed so the record is complete.