Stack Cost AI

DeFi Developmenthobby stack.

For each requirement below, pick the option that fits your build — recommended first, then free and cheaper alternatives — or skip what your project doesn't need. Tap the info icon next to any requirement to see why it matters.

Node RPC for DeFi (Mainnet + Testnet)

Pricing & free-tier limitsAlchemy Free 300M CU/mo incl. 3 apps, Growth $49/mo 1.5B CU, Scale $199/mo 10B CU, overage $0.15/1M CU; Infura Free 100k req/day, $50/mo Developer 500k req/day, $225/mo Team 2.5M req/day, overage $0.10/100k req; QuickNode Free 10M credits/mo, Growth $49/mo 30M credits, $100/mo 125M, overage $0.10/1M credits; Ankr Free 30 req/sec public

Archive Node / Full Node Hosting (Self-hosted Fallback)

Pricing & free-tier limitsSelf-hosted $0 software + Hetzner AX41 $45/mo 64GB RAM 512GB NVMe; QuickNode Free 10M credits, $49/mo 30M; Chainstack $45/mo Starter 20M req, $99/mo Growth 100M, $199/mo Business 250M; AWS Managed Blockchain $0.15/hr ~$110/mo per node + $0.10/GB-mo storage + $0.06/M req; Alchemy $49/mo same as above

Price Oracle (Market Data Feeds)

Pricing & free-tier limitsChainlink $0.50/call on-chain median (paid in LINK) + LINK staking, Functions $0.50/1k calls off-chain via API, Data Streams $0.10/stream Low-latency; Pyth Free tier 5M price updates/mo pull, then $0.01/call after free, Hermes $0/mo self-hosted; Band Protocol $0.10/call, Free 10k calls/mo, Pro $99/mo 100k calls, overage $0.08/call; API3 $0.02/call dAPI

Randomness Oracle / VRF for DeFi Lotteries & Draws

Pricing & free-tier limitsChainlink VRF Free testnet, mainnet $0.25-$2.00/req depending on gas + LINK (sub min $20 LINK), 500k gas callback; Drand Free OSS threshold sig; API3 QRNG $0.05/call Free 1k/mo, $49/mo 10k; Gelato VRF $0.10/call, Pro $49/mo 2k calls, overage $0.08/call

Indexing for DeFi (Subgraphs, Substreams, Custom APIs)

Pricing & free-tier limitsThe Graph Free 100k queries/mo, Pro $49/mo 1M queries, Growth $199/mo 15M queries, overage $0.10/1k queries; Goldsky Free 100k queries/mo, Pro $49/mo 1M sync + 2M queries, Growth $199/mo 10M queries, overage $0.12/1k; Alchemy Subgraphs Free 100k queries, Growth $49/mo 1M, $0.10/1k over

DeFi Analytics / TVL / Portfolio Tracking API

Pricing & free-tier limitsDeFiLlama Free OSS unlimited (fair use 1000 req/min, $0); Covalent Free 100k credits/mo, Premium $49/mo 1M credits, overage $0.05/10k; Dune Analytics Free 10k query executions/mo, Pro $399/mo 100k queries, Team $999/mo 500k queries, overage $0.01/query exec; Flipside Free 10k queries, Pro $50/mo 100k

Liquid Staking Infra & Restaking Integration

Pricing & free-tier limitsLido Free OSS SDK + 10% fee on staking rewards (no infra cost); Rocket Pool Free OSS + node operator $0 infra + 8 ETH min + RPL collateral, 14% commission; Stader Free OSS; EigenLayer Free OSS restaking integration; p2p.org Enterprise $500/mo + custom commission API; SSV DVT $2/validator/mo

Monitoring for DeFi (Simulation, Forks, Alerts, Incident)

Pricing & free-tier limitsTenderly Free 100 tx simulations/mo + 10 alerts, Pro $50/mo 1000 tx sim + 100 alerts, overage $0.05/tx sim, $0.10/alert; OpenZeppelin Defender Free 1 sentinel + 5 autotasks, Pro $99/mo 10 sentinels; Forta Free 1 bot, Paid $100/mo per bot, detection $0.10/alert; DefiSafety reports $0 public

Secrets Management for DeFi Private Keys & Mnemonics

Pricing & free-tier limitsVault OSS Free self-hosted, Cloud $0.03/hr + 50k ops free; AWS KMS $1/key/mo + $0.03/10k requests, free 20k req/mo KMS; Infisical Free 1000 secrets, $20/mo Starter 10k, $99/mo Pro unlimited; GCP KMS $1/key version/mo + $0.03/10k ops, free 5k ops/mo; Azure Key Vault $0.03/10k transactions

CI/CD for DeFi Smart Contracts (Tests, Fuzzing, Deploy)

Pricing & free-tier limitsGitHub Actions Free 2000 mins/mo (Linux) + 500MB packages, Team $4/user/mo 3000 mins, overage $0.008/min; GitLab Free 400 compute mins/mo; CircleCI Free 6000 mins/mo, Team $15/mo, overage $0.008/min; Buildkite Free 1 agent, Team $29/mo; Hardhat + Foundry OSS $0

Audit Logs WORM for DeFi Transactions & Compliance

Pricing & free-tier limitsS3 Free tier + $0.023/GB-mo Standard, $0.0125/GB-mo IA, Object Lock $0 governance; CloudTrail Free 1 trail, $2/100k management events; Backblaze B2 $0.006/GB-mo + $0.01/10k download, free 10GB; Datadog Log Mgmt $0.10/GB ingest, overage $0.10/GB; Retention 7y WORM $0 additional

Options and prices come straight from our research sheets for a hobby defi development project. Prices are estimates and change often — always confirm on the provider's page before committing.

How this hobby defi development checklist works.

Each requirement below is something a hobby defi development build typically needs. Pick one of the four researched options — recommended, free, cheaper or paid — add your own with "Other", or skip the requirement if your project doesn't need it. Nothing is mandatory; the plan on the right tracks what you've decided so nothing gets forgotten.

Your picks are saved in this browser automatically, so you can come back anytime. Options are researched per build level and refreshed as vendors change their plans — always verify details on the provider's page before committing.