Checkly vs Bruno
Checkly scores higher on the AgentReady, 85/100 against 52/100. They differ on 19 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.
What each one is
Checkly. The active reliability layer for developers & agents.
Bruno. Bruno is a Git-native, local-first, open-source API client for developers.
Where Checkly is ahead
Checkly passes structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented and limits / constraints documented, and Bruno does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.
It also holds adopt: agent-compatible signup flow, programmatic credential creation, fast time to first request and copyable quickstart. Bruno misses those.
And on operate, machine-readable errors, retry behavior documented, rate-limit behavior predictable, observable execution and agent compatibility verified. Bruno misses those.
Where Bruno is ahead
Bruno passes llms-full.txt / full agent docs and mcp discoverable, and Checkly 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. Checkly misses it.
What neither does
Both fail no mandatory sales call, official python sdk, idempotency support. 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. Bruno leads 100 to 80. Checkly misses llms-full.txt / full agent docs, mcp discoverable; Bruno misses nothing.
Understand is whether an agent can read the docs and work out how the API behaves before calling it. Checkly leads 100 to 23. Checkly misses nothing; Bruno misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.
Adopt. Checkly leads 65 to 50. Checkly misses no mandatory sales call, official python sdk, mcp integration available; Bruno misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, official python sdk.
Operate. Checkly leads 94 to 35. Checkly misses idempotency support; Bruno misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.
Pricing
Checkly does not publish a machine-readable starting price and has a free tier. Bruno starts at $6/user/month and has a free tier.
| Checkly plans | Bruno plans |
|---|---|
| - | Open Source $0 |
| - | Pro $6/user/month, billed annually |
| - | Ultimate $11/user/month, billed annually |
Signal by signal
| Signal | Checkly | Bruno |
|---|---|---|
| AgentReady | 85 | 52 |
| Discovery | 80 | 100 |
| Understanding | 100 | 23 |
| Adoption | 65 | 50 |
| Operability | 94 | 35 |
| Public API | Yes | Yes |
| MCP server | Unknown | Yes |
| OpenAPI spec | Yes | No |
| CLI | Yes | Yes |
| llms.txt | Yes | Yes |
| Self-serve signup | Yes | Yes |
| Free tier | Yes | Yes |
Which to pick
Checkly clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Checkly and Bruno. Alternatives to each: Checkly, Bruno.
An agent can fetch this as data: POST /v1/compare {"slugs": ["checklyhq", "usebruno"]}