Typed TypeScript + Python clients for the Blockchain Lab Open Data API — 20 free, versioned, nightly-rebuilt datasets: EVM chains & RPCs, DeFi TVL, stablecoins, yields, bridges, DEX volumes, protocol fees, L2BEAT L2 metrics, security incidents (hacks), OFAC-sanctioned addresses, public RPC health, EIPs/ERCs/BIPs, whitepapers, grants, hackathons.

Built by Blockchain Lab — blockchainlab.com

Types are generated from the API's JSON Schemas (scripts/gen.py); CI regenerates them daily and fails if the API drifted, and the live test suite hits every dataset in production (no mocks).

npm i github:Blockchains/blockchainlab-sdk

import { BlockchainLab } from "blockchainlab-sdk";
const bl = new BlockchainLab();
const usdc = await bl.stablecoin("USDC");               // StablecoinsRow | null
const base = await bl.l2("base");                       // stage, TVS breakdown, risks (L2BEAT)
const rpcs = await bl.healthyRpcs("ethereum");          // fastest healthy public RPCs
const hacks = await bl.incidents({ since: "2026-01-01", minUsd: 1e7 });
const flagged = await bl.isSanctioned("0x…");           // OFAC SDN list
const { data, generated_at } = await bl.dataset("dex-volumes"); // fully typed by name

pip install "git+https://github.com/Blockchains/blockchainlab-sdk#subdirectory=python"

from blockchainlab_sdk import BlockchainLab
bl = BlockchainLab()
print(bl.stablecoin("USDT")["circulating"])
for y in bl.top_yields(stablecoin_only=True, limit=5): print(y["project"], y["symbol"], y["apy"])
print(bl.l2("arbitrum")["stage"], bl.is_sanctioned("0x…"))

bips · bridges · chains · chains-tvl · dex-volumes · eips · ercs · events · fees · glossary · grants · hackathons · l2-metrics · protocols · rpc-health · sanctioned-addresses · security-incidents · stablecoins · whitepapers · yields — see the catalogue, OpenAPI and changelog/versioning.

SDK version tracks the API schema_version (1.1.x ↔ API schema 1.1). The client warns if the server's schema major differs. Pushing a v* tag builds the npm tarball and Python wheel and attaches them to a GitHub Release. Registry publishing (npm / PyPI) is a deliberate manual step: cd ts && npm publish / python -m build python && twine upload dist/*.

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