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SPECIFICTION
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Data Marketplace

datamarketplace.io

From $19/mo Free plan WebAPI
Visit datamarketplace.io
Spec score 8.1 #2 of 12 in Data as a Service (DaaS) Software

What it is

Data Marketplace is a service for finding, evaluating, buying, and selling machine-ready datasets. Analysts can use its dashboard, while AI agents can use an API, REST endpoints, a hosted MCP server, or an OpenAPI specification to discover, query, and purchase data. Each dataset listing includes a machine-readable schema, data dictionary, and automated PII detection report. Buyers can preview 50 rows and filter by format, license, recency, and quality score. Uploads are scored for completeness, freshness, and consistency; after payment clears, purchased datasets can be downloaded as CSV, Parquet, or JSON. Buyers can post data requests with a reward, and providers can compete to fulfill them; payment is due only if the result meets the stated specification. Datasets are scanned for personal information before publication, but uploaders are responsible for having a lawful basis to share personal data. The terms call the service an early-access beta, with features that may change or be removed and no guarantee that data will be retained. The free plan costs nothing; Starter costs $19 a month.

Spec sheet

Purpose
Data Marketplace lets people search, evaluate, buy, and sell machine-ready datasets.Read 30 Sep 2026 · datamarketplace.io
Audience
The service provides analysts with a dashboard and AI agents with an API.Read 30 Sep 2026 · datamarketplace.io
Privacy
The privacy policy says the service does not sell personal data and uses Stripe for payments and Google or GitHub SSO providers for authentication.Read 30 Sep 2026 · app.datamarketplace.io
Agent integrations
The platform offers REST endpoints, a hosted MCP server, and an OpenAPI specification for agents to discover, query, and purchase data.Read 30 Sep 2026 · datamarketplace.io
API query limit
The MCP manifest says dataset queries return at most 100 rows and that bulk rows require a completed order and delivery.Read 30 Sep 2026 · datamarketplace.io
Beta status
The terms describe the service as an early-access beta and say features may change or be removed and data is not guaranteed to be retained.Read 30 Sep 2026 · app.datamarketplace.io
Bounties
Buyers can post a data request with a reward, and providers can compete to fulfill it; the buyer pays only when the data meets the stated specification.Read 30 Sep 2026 · datamarketplace.io
Delivery
After payment clears, datasets are available for download in CSV, Parquet, or JSON.Read 30 Sep 2026 · datamarketplace.io
Personal data handling
Uploaded datasets are scanned for personally identifiable information before publishing, and uploaders are responsible for having a lawful basis to share personal data.Read 30 Sep 2026 · app.datamarketplace.io
Preview
Buyers can sample 50 rows and filter by format, license, recency, and quality score.Read 30 Sep 2026 · datamarketplace.io
Quality
Uploads receive automated completeness, freshness, and consistency scoring.Read 30 Sep 2026 · datamarketplace.io
Schema and PII
Each dataset includes a machine-readable schema, a data dictionary, and an automated PII detection report.Read 30 Sep 2026 · datamarketplace.io

Plans and prices

Free Free $0 forever 10 downloads / month · 1,000 API calls / month Read 30 Sep 2026 · datamarketplace.io
Starter $19 a month $19/ month 100 downloads / month · 10,000 API calls / month · 60 compute minutes / month Read 30 Sep 2026 · datamarketplace.io
Professional $99 a month $99/ month 1,000 downloads / month · 100,000 API calls / month · 600 compute minutes / month Read 30 Sep 2026 · datamarketplace.io
Enterprise Priced on request Custom Unlimited downloads, API calls and compute minutes · Pricing by agreement Read 30 Sep 2026 · datamarketplace.io

Every Data Marketplace plan and price →

Strong points and limits

Strong points

  • Dataset listings include schemas and data dictionaries.
  • Buyers can preview 50 rows.
  • Uploads receive completeness, freshness, and consistency scores.
  • Bounties pay only for data meeting the specification.
  • Free plan includes 10 downloads monthly.

Limits

  • Early-access beta features may change or be removed.
  • Data retention is not guaranteed.
  • MCP queries return at most 100 rows.
  • Uploaders need a lawful basis to share personal data.

Who it suits

Data Marketplace suits analysts looking for structured datasets and sellers publishing them, as well as AI agents accessing data through its API interfaces. Its bounty feature may suit buyers whose needs are not met by existing listings.

Verdict

The service combines dataset discovery, previews, transactions, and agent-facing interfaces. Its early-access status and uncertain data retention are important considerations before relying on it for ongoing work.

Where Specifiction places it

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