Lago alternatives
The highest-scoring alternative to Lago is Paddle at 83/100 on the AgentReady, against 39/100 for Lago.
All scored in Payments & Billing.
| Score | Alternative | Compare |
|---|---|---|
| 83 | Paddle | - |
| 81 | Mercury | - |
| 73 | Metronome | - |
| 73 | Polar | - |
| 65 | Stripe | - |
| 64 | Ramp | - |
| 64 | Schematichq | - |
| 61 | GoCardless | - |
| 58 | Chargebee | - |
| 55 | Adyen | - |
| 55 | Mollie | - |
| 53 | Useautumn | - |
| 50 | RevenueCat | - |
| 49 | Orb | - |
| 46 | Pylon | - |
| 45 | Checkout.com | - |
| 45 | Lemon Squeezy | - |
What Paddle does that Lago does not
Paddle passes clear canonical domain, clear product positioning, llms.txt published, machine-readable metadata, structured api reference, pricing understandable, self-service signup, free trial or free allowance, cli available, and Lago fails them. That is the whole of the gap between the two scores, so if none of those matter to your agent the ranking above overstates the difference.
Why people look for an alternative
Lago fails clear canonical domain, clear product positioning, public docs discoverable, llms.txt published, llms-full.txt / full agent docs, machine-readable metadata, structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, self-service signup, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, cli available, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.
Where Lago loses the points
| Pillar | Lago | What it measures |
|---|---|---|
| Discover | 47 | Can an agent find it at all: sitemap, robots, structured data. |
| Understand | 23 | Is there a spec, an llms.txt, a machine-readable description. |
| Adopt | 45 | Signup, keys, SDKs, and whether a human has to be involved. |
| Operate | 41 | Rate-limit headers, errors, status, and behaviour under load. |
Lago is weakest on understand at 23/100. Without a spec an agent has to guess at endpoints, and it guesses wrong. If that is the part your agent depends on, take the ranking above seriously; if it is not, Lago may still be the right pick.
What an agent runs into with Lago
These are the findings from the last audit on 2026-08-23. Each one is a place unattended software stops, which is the practical reason to look at the list above.
- Make signup self-serve; an agent cannot sit through a sales call.
- Make docs reachable without auth or navigation gymnastics.
- Publish an OpenAPI spec so agents can generate a client.
- Flesh out the OpenAPI: paths, schemas, and descriptions.
- Document error responses as an enum in your OpenAPI.
- Let agents create API keys programmatically.
- Return X-RateLimit / Retry-After headers so agents pace themselves.
- Return request IDs and expose status/usage so runs are observable.
What this category actually supports
Across the 18 products scored in Payments & Billing, accept a payment is offered by 39%, create a subscription is offered by 39%, meter usage is offered by 28%, merchant of record is offered by 17%. Anything under half is a gap you should expect to fill yourself whichever one you pick.
An agent can get this list directly: resolve("alternative to Lago") over the MCP server, or GET /v1/categories/payments.