PostHog API pricing

Open-source product OS where feature flags ride alongside analytics, session replay and experiments; flags are priced per evaluation request with a huge free allowance.

Free tier or trialBilled per request (volume-tiered)·Verified Jun 27, 2026

PostHog API pricing at a glance: Free $0/mo, Pay-as-you-go (1-2M tier) $0.0001 / request, Pay-as-you-go (2-10M tier) $0.000045 / request, Pay-as-you-go (10-50M tier) $0.000025 / request

Free tier

First 1M flag-eval requests/mo free, no credit card

Plans and prices

Plan	Price	What it covers
Free	$0/mo	First 1,000,000 feature-flag requests per month free; no credit card required; full flag feature set.
Pay-as-you-go (1-2M tier)	$0.0001 / request	Per-request rate applied to flag-evaluation requests beyond the 1M free monthly allowance.
Pay-as-you-go (2-10M tier)	$0.000045 / request	Volume-discounted rate for 2-10M monthly flag requests.
Pay-as-you-go (10-50M tier)	$0.000025 / request	Volume-discounted rate for 10-50M monthly flag requests.
Pay-as-you-go (50M+ tier)	$0.00001 / request	Lowest tier, a 10x reduction vs the entry rate, for 50M+ monthly flag requests.

What to watch for on the bill

Request-based billing means high-traffic client-side evaluation can get expensive without adopting local evaluation

The pricing page, as we saw it

PostHog pricing page, captured for reference — Capture of posthog.com. Captured from Germany, so some vendors show local prices or currency. Listed prices are verified Jun 27, 2026. The live page may differ.

Source: https://posthog.com/pricing. Prices change. Confirm on the vendor page before you commit.

Compare PostHog

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Read the PostHog pricing guide Quality score on APIbenchmarks →