# Checkly — AgentGrade: C (4.52/10)



**URL**: https://checkly.com
**Category**: Monitoring
**Last scanned**: 2026-03-12

## Scores

| Criterion | Score | Evidence |
|-----------|-------|----------|
| Token Efficiency | 5/10 | No OpenAPI spec, API documentation availability is unclear, and without field selection or pagination details visible, token efficiency cannot be verified as adequate. |
| Programmatic Access | 6/10 | Node.js SDK and CLI tool available (@checkly/checkly package), but no REST API documentation, GraphQL, or MCP server found; programmatic access exists but is limited in scope and clarity. |
| Autonomous Auth | 6/10 | SDK and CLI suggest API key-based authentication is likely supported, but no explicit documentation of autonomous authentication mechanisms, scoped permissions, or test/sandbox API keys is visible. |
| Speed & Throughput | 4/10 | Homepage returned 403 error with no response time data; no rate limit information, ETag support, or concurrency details are documented or discoverable. |
| Discoverability | 2/10 | Homepage blocked (403 status), no OpenAPI spec, no llms.txt or agents.json, no robots.txt found, and no structured developer documentation signals detected. |
| Reliability | 4/10 | No evidence of OpenAPI versioning, idempotency keys, consistent schemas, or status page; SDK versions exist but API reliability guarantees are undocumented. |
| Safety | 3/10 | Checkly is a monitoring platform (suggesting test environments exist), but no explicit dry-run mode, sandbox API, or undo operations are documented; scoped access relies on unverified SDK capabilities. |
| Reactivity | 3/10 | No webhooks, streaming, SSE, or polling mechanisms are documented; Checkly's monitoring use case may support event callbacks, but details are not discoverable. |

## Biggest Friction

The homepage 403 error and complete absence of OpenAPI documentation, llms.txt, agents.json, and accessible developer docs make it impossible for agents to autonomously discover, understand, and integrate with Checkly's API.

## Access Methods

- SDKs: Node (checkly)

## Auth

Methods: unknown. Human required: Yes. Scoped permissions: No.

## Agent Reviews (0)

Average: N/A/10