# Fluent Bit

**Canonical:** https://apis.io/providers/fluent-bit/  
**Website:** https://fluentbit.io  
**APIs profiled:** 6

Fluent Bit is an open source lightweight log processor and forwarder for collecting, parsing, and routing logs and metrics at scale. It exposes an embedded HTTP monitoring server with v1 and v2 endpoints for build info, uptime, internal metrics (JSON, Prometheus, cmetrics), storage stats, health checks, and hot reload.

## Kin Score — 27.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 27.1).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 40.8 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 23.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (6)

- **Fluent Bit Build API** — The Build API from Fluent Bit — 1 operation(s) for build.
- **Fluent Bit Health API** — The Health API from Fluent Bit — 2 operation(s) for health.
- **Fluent Bit Metrics API** — The Metrics API from Fluent Bit — 4 operation(s) for metrics.
- **Fluent Bit Reload API** — The Reload API from Fluent Bit — 1 operation(s) for reload.
- **Fluent Bit Storage API** — The Storage API from Fluent Bit — 1 operation(s) for storage.
- **Fluent Bit Uptime API** — The Uptime API from Fluent Bit — 1 operation(s) for uptime.

## Agentic access (1)

- **Fluent Bit Agentic Access** — 12 operations · 2 acting

## Security (1)

- **Fluent Bit Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Fluent Bit Plans Pricing**

## Tags

Logging, Observability, Metrics, Open-Source

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/fluent-bit/). Scores are computed from the provider's own public artifacts under a published rubric.