BioCatalyst

Pricing

Self-serve, no sales call. The free tier is genuinely useful; paid tiers unlock the full horizon, watchlist alerts, and the API/MCP.

Free

$0

Next 30-day window
Up to 25 rows/call
Web calendar + source links
No key needed

Self-serve

$29/mo

Full forward horizon
3,000 API calls/day
10 ticker/drug watchlists
Webhook alerts on new catalysts
JSON feed + MCP

Pro

$99/mo

Everything in Self-serve
15,000 calls/day · 500 rows
50 watchlists
Priority refresh + history export
x402 pay-per-call agent access

How to subscribe (gateless)

Pay, then email invoice@dropwatchhq.com with your tier and we issue an API key.

USDC (Base): 0x38134a7F97636E26365Fb17405566595B917a341
USDT (TRC20): TNvb5tyrzWZW9iNUwQ6TTiY87MGLs1Cgsi
Agents can pay per-call automatically via x402 — no key, no signup.

Disclaimer. Bio Catalyst Calendar is a public-events data calendar. Every date is sourced and linked to an official record (ClinicalTrials.gov, FDA / Federal Register, openFDA). It is scheduling and reference data only — NOT investment advice, a recommendation, or a buy/sell signal. Dates set by sponsors and the FDA can change; always confirm against the linked official source.