Verified analytics, not generated SQL

Stop trusting guessed numbers.
Start calling verified ones.

Every analytic is peer-reviewed logic running live against the source — a typed tool call for your agent, a readable answer for your team, and the same number every time either one asks.

Get started Talk to our team
Peer-reviewed logic, versioned Live data, never copied Same answer for humans and agents
Human asks
"Which state has the largest population today?"
California
via Marketplace · $0.01
The Analytic Verified
US State Population Rankings
US Census Bureau · v2.1 · Live, hourly refresh
CA
39.5M
scalar chart table prediction JSON
Agent calls
tool_call: us_population.top(state=1)
{ state: "CA", pop: 39512223 }
via MCP · $0.01
11K+
Verified analytics in the catalog
0
Rows of seller data copied to Spartera
Why piecemeal

Not all analytics are created equal.

Dashboards treat every chart as if it cost the same to build. They don't. A simple lookup is pennies. A predictive model is real engineering. Spartera makes that value gradient visible — so sellers get paid what their work is worth, and buyers know what they're paying for.

Descriptive · simple

" Which US state has the largest population today?"

analytic: us_population_top
CA
California
39.5M · last refreshed 38 min ago
Data acquisition Public · free
Processing Minimal
Analytical complexity Lookup
Build time ~30 minutes
$0.01 per query
Predictive · complex

" Which state will have the largest population in 2050?"

analytic: us_population_forecast_2050
TX
Texas
Projected 51.2M · 92% confidence
Data acquisition 12 sources · licensed
Processing Multi-stage ETL
Analytical complexity Bayesian forecast model
Build time ~280 hours
$4.99 per query

Same shelf, different prices — like every other commodity market. The dashboard model hides this. We surface it.

Two consumers, one source of truth

Human-to-insight.
Agent-to-insight.

The same verified analytic powers both. A person browsing a marketplace and an AI agent calling a tool get the same trusted answer — from the same underlying object, against the same live data.

Human-to-insight

For analysts, BD teams, content publishers

People want answers in formats they can read, share, or pay for once. They browse, preview, buy, embed, ask in chat — anywhere natural language fits.

Where humans consume today
Spartera Marketplace Buy per query
Articles & reports Embed live
Chat (Slack, Teams) Natural language
Custom dashboards Your app

Agent-to-insight

For AI engineers, LLM platforms, agent builders

Agents need reliable tool calls — not hallucinated SQL. Every analytic is a structured tool definition with typed inputs, validated outputs, and a tested query underneath.

Where agents consume today
MCP servers One per dataset
REST API & SDKs Python, JS/TS, Go
LLM tool-use Function calling
RAG grounding Verified facts
How it works

Tested logic in.
Verified answer out.

Every analytic is a self-contained object — a peer-reviewed query, a typed schema, and a render-to-anything output. It runs against live data and returns the same answer every time, in whatever format the consumer needs.

Anatomy of an analytic

One object.
Many output shapes.

Buyers don't always want a chart. Sometimes the answer is a single word. Sometimes it's a table, a forecast, or a raw JSON payload. Same source of truth — the consumer picks the format.

1
Defined by humans Peer-reviewed SQL or model logic. Tested against the seller's live data. Versioned and change-tracked.
2
Output is plural Scalar text, chart, table, prediction, JSON, PNG. Same object, the consumer chooses the shape.
3
Priced for its work A simple lookup costs pennies. A predictive model costs dollars. Sellers set the price for their effort.
/analytics/us-population
which US state has the largest population today?
CA
California
39.5M residents · live
format: scalar.text v2.1 · verified
top 12 US states by population
format: visualization.bar v2.1 · verified
top 4 US states by population
Rank State Population
1 California 39,512,223
2 Texas 29,145,505
3 Florida 21,538,187
4 New York 20,201,249
format: table v2.1 · verified
which state will have the largest population in 2050?
California · 39.5M
Today
Texas · 51.2M projected
2050 · 92% conf
format: prediction v1.0 · Bayesian forecast
Verified, not generated

Tested logic.
Not LLM roulette.

Every other "AI for data" startup is racing to ship NL2SQL that hallucinates columns, misreads schemas, and silently returns wrong answers. We took the other path: humans write the logic, we validate it, version it, and let agents call it.

Reliable answers. Same number every time. Auditable. The boring, correct way.

NL2SQL approach
user: "largest state by population"
SELECT name FROM states WHERE pop = MAX(population_2024)
⚠ hallucinated — column doesn't exist
Spartera approach
agent: tool_call us_population.top()
→ "California" (39,512,223)
✓ tested logic · peer-reviewed · same answer every time
Who it's for

Two sides. One primitive.

Spartera seller dashboard — connected data sources and published analytics
For data sellers

Build once.
Earn everywhere.

Connect your live data, define your analytics in tested logic, price them for the work they took. Spartera handles delivery to every consumer that calls them.

  • Live queries against your own warehouse — data never moves
  • One analytic, monetized across every human and agent consumer
  • Set your own price — pennies for lookups, dollars for models
  • 80/20 split — you keep 80% of every query
  • Full commerce stack: payments, contracts, support
Become a seller
Spartera marketplace — browse and purchase verified analytics
For buyers, developers & AI teams

Call once.
Use anywhere.

Find verified analytics across dozens of providers. Call them from your app, your agent, your article — get the same trusted answer every time, priced for what each one is worth.

  • One API key, dozens of providers, no per-vendor contracts
  • MCP-native — every analytic is a typed tool call for agents
  • SDKs in Python, JS/TS, Go — or call the REST API directly
  • Pay per query, not per seat
  • Custom vertical sourcing if we don't carry your data yet
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The ecosystem

Built on Spartera.

Verified analytics shouldn't end at our surfaces. The model is open. Build articles, agents, copilots, vertical apps — anywhere verified analytics need to live.

Your app here
Your agent here
Your copilot here
Your dashboard here
Your report here
Your pipeline here
Read the developer docs
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Stop buying dashboards.
Start buying answers.

Verified analytics. Live data. Same trustworthy answer — for every consumer that asks.

Get started Talk to our team