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MessagePack pricing

● Identity checked

Serialization · Vendor site 2026-10-04

MessagePack is an efficient binary serialization format positioned as a faster, smaller alternative to JSON. The site documents cross-language implementations and testimonials from production systems using MessagePack for caches, feeds, and service glue.

Updated 2026-10-04View sources
Official website
Category
Serialization
Free access
Open format with community implementations; msgpack.org does not charge for the specification or libraries.
API access
Language-specific libraries listed for dozens of runtimes rather than a single hosted HTTP API.

Understand the total cost

MessagePack pricing & plans

Pricing

Not listed

Official monthly price not confirmed

API
Language-specific libraries listed for dozens of runtimes rather than a single hosted HTTP API.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.

MessagePack pricing questions

Is MessagePack free?

We could not confirm a free plan for MessagePack. Open format with community implementations; msgpack.org does not charge for the specification or libraries.

How much does MessagePack cost?

MessagePack does not publish a monthly price we could confirm.

Does MessagePack have an API?

API or developer access is mentioned. Language-specific libraries listed for dozens of runtimes rather than a single hosted HTTP API.

More on MessagePack