ONCE is music distribution built for agents. Connect the MCP server, sign in with a ONCE account, and an agent can upload audio and cover art, generate artwork, run AI and rights checks, submit releases to every major store, manage store selection and takedowns, buy credits, and
Prices and medians update for the tier you select.
Compare at
once · Pro
No Pro plan
—
Pro-MCP server median
$22.5
across 6 priced MCP servers
vs Pro MCP servers
No comparison
once doesn't sell Pro
ⓘ Comparisons are same provider type (MCP server) and same buyer tier (Pro). Never across tiers.
Market density
0th pctile
1 competing vendors
Comparable listings · 30d
Flat
limited data · 2 priced comparables
Agents · Pro median
$24.99/mo
4 priced · $20.74–$30.5 mid 50%
MCP servers · Pro median
$22.5/mo
6 priced · $8.74–$28 mid 50%
Agents cost 1.1× MCP servers at the Pro tier.
Price spectrum · Pro plans · 10 of 21 providers priced · log scale · $4.99 → $129/mo
Agents MCP servers APIs◻ shaded = middle 50% · line = median (all types)once has no comparable Pro price — not plotted
Products in this market
Ranked by how closely each one matches once's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.
