#4 in Monitoring & ObservabilityUpdated 2026-08

Pydantic Logfire

by Logfire · OpenTelemetry-based observability for AI and general applications

81.1 — BenchRank score out of 100

Homepage
Pricing page

Visit website See full Monitoring & Observability ranking

Overview

Pydantic Logfire is an observability platform for AI and general applications, built on OpenTelemetry. It collects logs, traces and metrics from LLM calls, agents, web frameworks and databases via SDKs for Python, JavaScript/TypeScript and Rust, or any OTel-compatible language. Data is queried with Postgres-flavoured SQL, and Logfire also acts as an MCP server.

Best for: Engineering teams tracing LLM agents alongside the rest of their application stack in one tool.
Pricing: Free Personal plan with 10M records a month, then Team at $49/month and Growth at $249/month, each charging $2 per additional million records, with custom-priced Enterprise plans.
Runs on: WebSelf-hosted

Strengths and trade-offs

Strengths

Built on OpenTelemetry; any OTel instrumentation works
Traces queried with full Postgres-flavoured SQL
First-party SDKs for Python, JavaScript/TypeScript and Rust
10M spans/logs/metrics a month free, no card required

Trade-offs

Retention is 30 days on Personal and Team, 90 days at most on Growth
SSO, SLAs, custom retention and self-hosting are Enterprise-only
Personal stops ingesting at 10M records; no ad-hoc payment for overage
Team includes 5 seats, then $25 per extra seat, capped at 12

Pricing

Published plans from Pydantic Logfire’s own pricing page, in USD. Usage charges and add-ons may apply on top.

Pydantic Logfire pricing tiers, monthly rates in USD
Plan	Monthly	Includes
Personal	Freeper month	1 seat, 2 read-only guests, 3 projects 10M logs/spans/metrics included, capped after that 30-day retention, EU or US data region AI Gateway with up to 3 BYO provider credentials
Team	$49per month	5 seats included, up to 12 at $25 per extra seat 10 read-only guests, 5 projects $2 per additional million records, with a price cap 30-day retention, money-back guarantee on first month
Growth	$249per month	Unlimited seats, guests and projects Retention up to 90 days, self-serve GDPR data deletion Priority support, public API, ≤5,000 query API requests/day Boilerplate HIPAA BAA; 3% markup on built-in AI Gateway providers
Enterprise	Contact sales	Cloud, dedicated single-tenant or self-hosted on your Kubernetes SSO via Dex, custom roles, audit log API, SLA Custom (unlimited) retention and volume discounts 24/7 priority support, DPAs, BAAs, SOC2 Type II

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 100 out of 100
API quality: 65 out of 100
Documentation: 60 out of 100
Agent friendliness: 83 out of 100
Pricing transparency: 100 out of 100
Changelog: 100 out of 100
Marketing site structure: 85 out of 100
Operational trust: 50 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 85 out of 100
Maintenance: 100 out of 100

This doesn’t look right — report a problem with Pydantic Logfire’s score

Alternatives in Monitoring & Observability

Ranked 1
88.3 — BenchRank score out of 100
OneUptime
OneUptime · Open-source observability and incident management on one platform
Best for: Teams wanting monitoring, on-call, status pages and observability on one open-source platform
Ranked 2
88 — BenchRank score out of 100
openstatus
OpenStatus · Open source status pages with uptime monitoring from 28 regions
Best for: Teams that need a public status page and uptime checks while working towards SOC 2.
Ranked 3
81.6 — BenchRank score out of 100
Sentry
Sentry · Error tracking and application performance monitoring for developers
Best for: Development teams wanting error monitoring, tracing and session replay tied to one trace