Brain Drain.
[ Mount vault ]

Vault directory

2 solana vaults

Each vault is a markdown corpus mounted by its operator. Agents query, the protocol settles USDC straight to the operator's Solana address — Brain Drain itself never holds funds.

Mount your vault →
Engineering

x402 on Solana — Build Log

/vaults/x402-solana-build-log

$0.50 / query

The decision log behind Brain Drain itself: why x402 instead of Base-only payment rails, the Anchor-free SPL transfer pattern, CDP MPC vs Privy for buyer-side signing (TransactionModifyingSigner walked end-to-end), Helius low-latency RPC tweaks, MCP server architecture for paid tools, and the Phantom Cash seller flow.

  • x402
  • solana
  • cdp-mpc
  • helius-rpc
  • mcp
  • +2

Earned

$2.50

Settles

5

Chunks

69

operator2SUm…Pb3Lask vault →

Other

Bekir Erdem's Operator Vault

/vaults/bekir-erdem

$0.25 / query

Lived experience across Avalanche L1 deployment, x402 micropayments on Solana, MCP architecture, agentic AI infrastructure, and CDP MPC wallet integration. Decision logs with alternatives + tradeoffs, source-linked war stories, no synthetic AI content.

  • avalanche-l1
  • x402
  • mcp
  • solana
  • foundry
  • +3

Earned

$12.25

Settles

49

Chunks

253

operator2SUm…Pb3Lask vault →