21st Agents SDK Pricing
Starting price
$6/month
Pricing model
Paid
Free tier
No
Free trial
No
Plans
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Builder | $6 | month | $6/month billed yearly; Unlimited copies, MCP installs, icons; No monthly AI credits |
| Builder + AI | $15 | month | $15/month billed yearly; 500, 1,000, or 2,000 AI credits/month; Multi-model sketch, code mode |
| Team | $7.5 | month · per seat | $7.50 per seat/month billed yearly; 2–50 seats; Optional AI credits per seat |
| Extra AI credits | $5 | month | +100 for $5; Rolls over; Builder + AI and Team + AI |
Figures are the vendor's published prices. Unknown values show as “—”. Price-history tracking is not yet available for this tool. Price verified 2026-09-30. Last updated 2026-10-12.
True cost
True cost calculator
| Plan | Listed | Seat basis | Monthly · 5 seats | Annual · 5 seats |
|---|---|---|---|---|
| Builder | $6/month | flat | $6 | $72 |
| Builder + AI | $15/month | flat | $15 | $180 |
| Team | $7.5/seat/month | per seat | $38 | $450 |
| Extra AI credits | $5/month | flat | $5 | $60 |
Estimate from published prices. Per-seat plans scale with seats; flat plans don't; plans with included seats charge the base until you exceed them, then add the per-seat overage where published. Monthly/annual come from each plan's billing period. Taxes and add-ons excluded.
21st Agents SDK's starting price ($6) is 97% below the Developer Tools average of $187.
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