Pricing

Usage-metered, like the rest of the API-docs stack.

Free Community tier mirrors the BCP-79 contribution model — the substrate stays open. Team and Enterprise run the always-on agent layer for browser API docs.

always-on
v0.9 · Chromium 128 matrix· 8 upstream spec sources
Community
Freeforever

Mirrors the BCP-79 model — the substrate stays open.

  • Up to 3 watched repositories
  • Daily spec scans (delayed)
  • Community-tier concurrency
  • Public changelog feed
Open the checker
Most teams start here
Team
$249/seat / month, metered

For a single API surface or product docs site.

  • Unlimited watched repositories
  • Real-time draft + commit watches
  • Full sandbox matrix (102 profiles)
  • PR-gated publishing, label sync
  • 90-day audit + drift replay
Enterprise
Customvolume + on-prem

For multi-surface owners running their own conformance program.

  • Private-spec ingestion (CSSWG subgroups, IG drafts)
  • Dedicated sandbox runner pool
  • SSO + audit log streaming
  • Named solutions engineer
  • Roadmap SLA
Join the Enterprise waitlist

Pattern mirrors Zuplo · Fern · Mintlify · ReadMe · Redocly — usage-metered, free community tier, mid-to-enterprise ceiling.

Compare

What you get at each tier.

Same always-on agent under the hood, different ceiling. Team is what most API-docs owners standardize on; Enterprise adds private-spec ingestion, SSO, and a named solutions engineer.

FeatureCommunityTeamEnterprise
Snippet checks / day501,000Unlimited
Watched repositories3UnlimitedUnlimited
Spec sources coveredBCD · MDN · GHAll 8 upstream sourcesAll sources + private-spec ingestion
Sandbox matrixSingle Chromium profile102 Chromium profiles102 profiles + dedicated runner pool
Draft-PR generationDaily, delayedReal-timeReal-time + on-prem runner
PR-gated publishing + label sync
Audit log + drift replayPublic changelog only90-dayUnlimited + log streaming
Support SLACommunity, best-effort24h response, weekday business hours1h response, 24/7, named SE
SSO (SAML / OIDC)——

Draft-PR quota is metered per repository; overage pulses the audit log and surfaces on the Team dashboard. Sandbox profiles included at every paid tier — usage counts toward the always-on agent layer.

Spec loop is on

Bring your docs in line with the spec — for free, or for keeps, your call.

Drop snippets into the checker, book an intro call, or join the waitlist for the Team and Enterprise tiers. Either way the next WHATWG commit reaches you as a draft PR instead of a stale doc page.

Create your accountOpen the checkerRe-read the spec loop
Already a Community user? Reply from the GitHub issue you originally opened and we'll migrate your watch list to a Team trial.On-prem and air-gapped Enterprise deployments ship as a signed container bundle; the always-on agent layer runs entirely inside your network.

Pattern mirrors Zuplo · Fern · Mintlify · ReadMe · Redocly — usage-metered, free community tier, mid-to-enterprise ceiling.

Always-on agent layer · always your reviewer, always your merge.

See the spec loop