What is Middleware?
Full-stack observability with an AI SRE agent.
Who is Middleware best for?
Middleware is best for SRE teams who want logs, traces and APM in one OpenTelemetry tool.
Teams watching observability costs
Billing is by the GB of data stored rather than by seat, and the free plan covers 100GB a month with unlimited users.
On-call engineers and SREs
The OpsAI agent reads traces, logs and real user sessions to find the line of code behind an error and can open a pull request with a fix.
Teams already on OpenTelemetry
Its agents are built on OpenTelemetry, it also takes data from collectors such as Prometheus, and it lists more than 450 integrations.
Apps with LLM features in production
LLM Observability tracks token use, cost and errors of AI features next to the rest of the stack's logs, metrics and traces.
How much does Middleware cost?
Middleware has a Free Forever plan with 100GB of data a month, and beyond that its Pay As You Go plan charges $0.3 per GB of metrics, logs and traces, plus separate rates for user sessions, checks, test runs and OpsAI tokens.
- 100GB of data, 1,000 RUM sessions and 20,000 synthetic checks a month
- 10 browser test runs and 2 million OpsAI tokens, once
- Unlimited users, 14-day retention, community support
- $1 per 1,000 RUM sessions and $1 per 5,000 synthetic checks
- $10 per 1,000 browser test runs
- OpsAI error fixing, 30-day retention, SSO
BYOC (bring your own cloud) is priced through sales, with volume and multi-year discounts, custom retention and 24x7 support. OpsAI spots errors for free; root cause analysis and fixes cost $3 per million input tokens, $15 per million output tokens and $6 per million cache tokens. The free 100GB still applies on Pay As You Go, so 200GB in a month comes to $30 in Middleware's calculator, and data you drop in its pipeline is not billed. The pricing FAQ also mentions a 14-day free trial with unlimited data ingestion, and startups and non-profits can ask for a discount. Full pricing on middleware.io. We checked these prices on .
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What are the best Middleware alternatives?
Three tools on Recaply do Middleware's job. All three are open source, so you can run them on your own server.
Choose it when you already use Grafana and Prometheus and want logs under the same labels on your own infrastructure
Choose it when you want dashboards and alerts over your own Prometheus, Loki or SQL data, with no per-GB ingest bill
Choose it when you only need metrics and alerting and want to run them free on your own servers, not pay per GB
Questions about Middleware
What is Middleware?
Full-stack observability with an AI SRE agent.
Who is Middleware for?
Middleware is best for SRE teams who want logs, traces and APM in one OpenTelemetry tool.
Is Middleware free?
Yes. Middleware's Free Forever plan costs nothing with no end date and includes 100GB of data, 1,000 RUM sessions and 20,000 synthetic checks a month, unlimited users and 14-day retention. Its pricing FAQ also mentions a 14-day free trial with unlimited data ingestion.
How much does Middleware's OpsAI agent cost?
Error detection with OpsAI is free. Root cause analysis and automated fixes are billed by the tokens they use: $3 per million input tokens, $15 per million output tokens and $6 per million cache tokens. The Free Forever plan includes 2 million OpsAI tokens once.
Is there an open source alternative to Middleware?
Yes. Grafana Loki, Grafana, Prometheus and SigNoz and 6 more are open source tools that do the same job, so you can run your own.
What are the best Middleware alternatives?
The closest alternatives on Recaply are Grafana Loki, Grafana and Prometheus.
Where can I try Middleware?
On its official website, middleware.io.







