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Paddle vs Polar

Paddle scores higher on the AgentReady, 83/100 against 73/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Paddle. Paddle is a Merchant of Record platform for digital product businesses that manages payments, tax, compliance, and billing across 300+ markets.

Polar. Polar is a billing stack and merchant of record for the intelligence era, providing complete billing infrastructure with tax compliance, product management, and automated access & delivery for software businesses.

Where Paddle is ahead

Paddle passes mcp discoverable, and Polar does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: mcp integration available. Polar misses it.

Where Polar is ahead

Polar passes public docs discoverable and llms-full.txt / full agent docs, and Paddle does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: openapi / spec quality, request examples provided, response examples provided and errors and status codes documented. Paddle misses those.

And on adopt, programmatic credential creation, fast time to first request, copyable quickstart, official typescript sdk and official python sdk. Paddle misses those.

Finally, on operate, canonical workflow succeeds, structured, predictable output, machine-readable errors and observable execution. Paddle misses those.

What neither does

Both fail search discoverable, authentication documented, limits / constraints documented, no mandatory sales call, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover. Paddle leads 83 to 73. Paddle misses search discoverable, public docs discoverable, llms-full.txt / full agent docs; Polar misses search discoverable, mcp discoverable.

Understand. Polar leads 85 to 83. Paddle misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Polar misses authentication documented, limits / constraints documented.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Paddle leads 100 to 76. Paddle misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, official typescript sdk, official python sdk; Polar misses no mandatory sales call, mcp integration available.

Operate. Paddle leads 67 to 59. Paddle misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified; Polar misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Paddle does not publish a machine-readable starting price and has a free tier. Polar starts at $0/mo and has a free tier.

Signal by signal

Which to pick

Polar clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Paddle and Polar. Alternatives to each: Paddle, Polar.

An agent can fetch this as data: POST /v1/compare {"slugs": ["paddle", "polar"]}