Others show you what your AI spent.We’re built to tell you what to fix — and stop the bill.

Detect → recommend → enforce → prove. One platform, EU-hosted by design.

Telemetry workbench

EU production
Window
60m
Ingest
Healthy · 1.4k/min
Data
Illustrative product data

Cost delta vs 7d baseline

+38.2%€43.81 / hr

deploy api-7f2spike at 14:32

Trace activity tr_9af21

otel.export200 accepted
01

Recommended action high confidence

Stop the retry loop before the next run.

agent.run repeated 14 times after deployment api-7f2.

How the signal becomes an action

MCP exchange result

telemeter.trace.compare

why did cost rise after the last deploy?

result Retry amplification in tool.search · 14 traces linked

  • Enforcehard caps
  • Recommendsix agents
  • EU-hostedby design
  • Apache-2.0open core
  • OpenTelemetrynative ingest
  • MCPtyped tools

Three doors, one platform

Pick the door that matches what's actually wrong.

Each door is the product itself, not a description of it — the live artifact, planned state, and the one real link in.

Bleeding money?

Spend FirewallIllustrative example

$312 $400BLOCKED

Request declined

Sample request would exceed the cap.

Kill switch — engaged

Spend Firewall

Planned · waitlist

Flying blind?

Trace waterfallIllustrative example

trace_8f21a4 640ms total

  1. agent.run640ms
  2. tool.lookup ×6260msretry
  3. model.generate340ms
  4. otel.export40ms

Signals

Planned · in development

Signal path / 09.104ms

Every production event should end in understanding.

From raw span to bounded recommendation, the evidence stays connected and inspectable.

  1. 01
    otel.export200 accepted

    1,248 spans entered the EU ingest edge.

  2. 02
    baseline.compare+38.2% delta

    Cost and trace shape diverged from the seven-day baseline.

  3. 03
    recommendation.emithigh confidence

    One bounded action was attached to the affected deployment.

Illustrative example — timings and figures are not from a live run.

Product map

Detect → recommend → enforce → prove, mapped to real surfaces.

Each verb links to the product that actually does it: Signals for detect and recommend, Spend Firewall for enforce, the EU-native evidence trail and Evaluations for prove — no slide adjectives, no fourth product.

01

Detect

Connect model calls, tools, retries, cost, and latency under one run identity — the drift shows up before it becomes a surprise.

Signals

02

Recommend

Six narrow analysis agents turn that evidence into one concrete, reviewable fix — not another dashboard to watch.

Signals

03

Enforce

Hard per-key spend caps that trip to blocked — not an alert after the bill already moved.

Spend Firewall

Scale the ingest,
sharpen the answer

Unsafe OpenTelemetry shapes are rejected at the edge, before they reach storage or your bill.

See docs

Read-only agents reason over the spans that actually ran. No sampling, and no inference the trace cannot support.

See docs

Every action arrives with the evidence that produced it, so a reviewer can agree or refuse on the facts.

See docs

Spans accepted spans / min

One connected surface

Built around the run, not the dashboard.

Cost

Spend drift, caught at the span

+38.2% vs 7d baseline · deploy api-7f2

Illustrative example

Model, prompt, cache, retry, and tool-call changes that move cost outside the run’s envelope.

Traces

The run as a system

Model calls, tools, retries, cost, latency, and outcomes under one stable run identity.

Agents

Planned analysis agents

Six agents — from cost spikes to model drift — with bounded evidence and reviewable output.

Planned capability

MCP

One way in, alongside Console and email

why did cost rise after the last deploy?

Retry amplification in tool.search · 14 traces linked

Posture

EU-hosted, Apache-2.0 core, self-hostable

Architecture constraints, not footer claims: OpenTelemetry in, documented export paths out.

Trust surface / stated, not implied

Built for explicit operations.

Telemeter is not claiming enterprise badges on day one. It is building the product surface where those claims can become auditable: regions, subprocessors, evidence, limits, and review paths.

Read the provider register

EU residency target

We keep provider regions and processing claims explicit instead of implying certification before launch.

OpenTelemetry first

The ingestion boundary starts from portable traces and attributes rather than a proprietary agent wrapper.

Read-only agents first

Analysis agents are scoped to evidence-linked recommendations before any workflow can make changes.

Self-host path

Storage, queues, and analysis boundaries are documented so portability can become real implementation work.

Draft legal surface

Privacy, cookies, terms, DPA, acceptable use, and sub-processor pages are present from the start.

No fake product claims

Pages separate what's live today from planned capabilities, pricing, tools, and certifications.

Developer path / three commands

Start with the trace. Keep the action inspectable.

Command, code, live environment. OpenTelemetry goes in, analysis stays bounded, and every recommendation arrives with the evidence that produced it.

Open the docs map
$ pnpm create telemeter@latest
$ telemeter dev

Telemetry workbench running at http://localhost:4318
import { trace } from "@opentelemetry/api"

const span = trace
  .getTracer("checkout-agent")
  .startSpan("agent.run")

span.setAttributes({
  "gen_ai.operation.name": "tool.search",
  "telemeter.run.id": runId,
  "telemeter.cost.eur": 0.084,
})

Open utility belt

Useful before you create an account.

Inspect the inputs that shape production cost and reliability with focused, free utilities — the only LLM tools your coding agent can call without a signup, over MCP.

01

Cost calculator

Estimate monthly spend across 670+ models from your token volumes — verified where sources agree, no signup.

Available now

02

Token counter

Count the tokens in any prompt — exact for OpenAI, honestly estimated for Claude and Gemini.

Available now

03

OTel validator

Check a trace against the GenAI semantic conventions and see exactly what fails.

Available now

04

Model comparison

Compare price, context window, and capabilities across every model — with a head-to-head for any two.

Available now

05

Caching savings

See how much prompt caching cuts your bill — from your prefix size, request volume, and cache hit rate.

Available now

06

Self-host breakeven

Find the monthly token volume where running your own GPUs beats paying per-token API pricing.

Available now

07

EU AI Act classifier

Classify an AI system into its EU AI Act risk tier — with the governing Article and Annex cited for every outcome.

Available now

08

Context window checker

Check whether a prompt and its reserved completion fit any model’s context window, with the headroom left.

Available now

09

Cost spike simulator

Project how your monthly bill moves when traffic, prompt size, or output length grows — and see which lever drives it.

Available now

10

GDPR readiness checker

See which GDPR obligations apply to your AI processing and where the gaps are — each cited to its Article.

Available now

11

MCP schema token-cost

See how many tokens your MCP tool schemas add to every request — and what that overhead costs.

Available now

12

Pricing tracker

Every verified price change on record, diffed from the registry’s own version history — dated and sourced.

Available now

13

Prompt hash lookup

See the canonical hash for a prompt template — the same algorithm production ingestion uses to group cost and quality by template.

Available now

14

Agent cost decomposer

Paste a multi-step agent trace and see the verified cost of every step — by model, by driver, and any retry loop burning through it.

Available now

15

Embedding/RAG cost estimator

Project the one-time cost of embedding your corpus and the ongoing cost of embedding search queries — plus the annual total including re-embeds.

Available now

16

Rate-limit headroom calculator

See how close your traffic runs to your RPM/TPM/RPD limits — which one bites first, and how much you can grow before it does.

Available now

17

Carbon/Energy Estimator

Project the energy and CO2e of your monthly query volume — a cited range across published measurements, never a single invented number.

Available now

18

LLM Pricing API & Widget

A free, keyless pricing API plus an embeddable widget — drop a model’s live price onto any page, powered by telemeter.ai.

Available now

Early access

Join the waitlist.

Pick the door you care about most — we’ll email you when it opens.

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