hoodgrow

Python SDK for the HoodGrow Robinhood Chain stock token API — live price, corporate-action adjusted supply (ERC-8056, correct through stock splits), Morpho/Uniswap DeFi depth, and corporate actions (splits, dividends). Pay per call via x402 (USDC on Base) — no signup — or use a bearer API key if you have one.

pip install hoodgrow

Quick start — x402 (pay per call, no signup)

import os
from eth_account import Account
from hoodgrow import HoodGrowClient

# Never hardcode a real private key — load it from an env var / secret
# manager, and only fund this wallet with what you're willing to spend
# on this API.
signer = Account.from_key(os.environ["AGENT_PRIVATE_KEY"])

client = HoodGrowClient(signer=signer)

catalog = client.get_catalog()   # $0.10 — every token
nvda = client.get_token("NVDA")  # $0.05 — one token

Every call settles a real USDC payment on Base mainnet. See Payment safety below before you point this at a funded wallet.

Quick start — API key (free, issued access)

import os
from hoodgrow import HoodGrowClient

client = HoodGrowClient(api_key=os.environ["HOODGROW_API_KEY"])

catalog = client.get_catalog()

Get a key from HoodGrow directly — see hoodgrow.com/api-access.

API

HoodGrowClient(api_key: str | None = None, signer: LocalAccount | None = None, base_url: str = "https://www.hoodgrow.com")

Exactly one of api_key / signer is required.

Full response shapes are Pydantic models (CatalogResponse, TokenDetailResponse, TokenSummary, DefiInfo, PendingCorporateAction, RecentCorporateAction) — attributes are idiomatic snake_case; the API's own camelCase JSON keys also work if you construct a model directly.

A failed request (any non-2xx HoodGrow itself returns, after x402 payment handling — an unknown symbol, a server error) raises HoodGrowError with .status and .body.

Payment safety

x402 payments are real money and are not idempotent — retrying a timed- out request can pay twice. Before pointing a signer at this client:

• Only fund the wallet with what you're willing to spend on this API.
• signer must be an eth_account LocalAccount (e.g. Account.from_key(...)) that can sign locally.
• HoodGrow's paywall only ever asks for USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base mainnet (eip155:8453), paid to 0x8520B3693a2Cf3c2bEa3a505Af3A9c1b093954c7, capped at $0.10/call — this client's underlying x402 dependency handles the protocol-level verification, but you're responsible for how much you fund the signing wallet with.

Rate limits

30 requests/minute per IP by default for pay-per-call use. A 429 means back off — check the response's Retry-After header rather than retrying immediately (a blind retry after a paid call risks a duplicate payment). Need more sustained throughput? A persistent API key with its own higher limit is available — see hoodgrow.com/api-access.

Development

python -m venv .venv && source .venv/bin/activate
pip install -e ".[dev]"
pytest   # mocked HTTP via `responses`, no network dependency

License

MIT