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Your plan, billing and API keys.

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Use the same account you use for the OptionSpace app.

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Plan & billing

a month, plus tax

See plans

Lookups cost 1 credit each; research calls cost the server time they use. What each call costs

Use it as Authorization: Bearer … against /api/v1/data. See the quickstart below.

API keys

Label (what uses it: “research”, “airflow”)

Expires (optional, inclusive day)

IP allowlist (optional CIDRs, comma-sep)

Key	Status	Created	Last used	Today	Last 30 days	Expires	IP allowlist

Quickstart

Every request carries your key in a header. Usage is metered per account, pooled across all keys (the table shows each key's share, by UTC day), against your daily credit and row allowance (429 responses include your usage and a Retry-After).

curl

curl -H "Authorization: Bearer sk_os_YOUR_KEY" \
  "https://optionspace.ai/api/v1/data/entitlements"

python

import requests

BASE = "https://optionspace.ai/api/v1/data"
H = {"authorization": "Bearer sk_os_YOUR_KEY"}

# what am I entitled to + usage so far today
print(requests.get(f"{BASE}/entitlements", headers=H).json())

# ATM term structure (end-of-day)
surface = requests.get(f"{BASE}/surface", headers=H,
    params={"symbol": "SPY", "data_date": "2026-07-01"}).json()

# per-minute fitted smile
smile = requests.get(f"{BASE}/smile", headers=H,
    params={"symbol": "SPY", "data_date": "2026-07-01",
            "snapshot": "15:57", "expiration": "2026-07-17"}).json()

Endpoints: /entitlements (your limits + live usage, free), /surface (end-of-day ATM term structure), /smile (per-minute fitted smile). For Python and AI assistants (MCP), see the Python and MCP guides.