Best News API for Developers

NewsCatcher vs Massive (ex-Polygon.io) News: full comparison for 2026

Quick verdict

NewsCatcher (4.7/5) edges ahead of Massive (ex-Polygon.io) News (3.8/5) overall. NewsCatcher is the better choice for developers who want clean, deduplicated news without writing post-processing. Massive (ex-Polygon.io) News is the stronger option for trading-app developers already using Polygon or Massive data. The right pick depends on your budget, how much history you need and whether you need full text.

NewsCatcher vs Massive (ex-Polygon.io) News: head-to-head summary

Criterion NewsCatcher Massive (ex-Polygon.io) News
Founded 2020 2016
HQ Middletown, Delaware, USA (registered); team mostly in Europe Atlanta, Georgia, USA
Team size 11–50 Not publicly disclosed
Rating 4.7 / 5 3.8 / 5
Primary differentiator Summaries, story clusters, entities and geotags arrive in the response, so the processing code you would otherwise write is already done Per-ticker sentiment with a written reason, included in stock data plans
Pricing model Custom quote; pay-as-you-go trial Monthly plans per asset class
Entry price Custom quote $29/mo
Formats & SDKs REST API, JSON, Python SDK REST API, JSON, WebSocket
Typical uses AI & LLM apps, Media monitoring, Risk & compliance, Financial services Financial services, Research & academia

NewsCatcher vs Massive (ex-Polygon.io) News: overview

NewsCatcher

Most news APIs hand you raw articles and leave the cleanup to you. NewsCatcher, a Y Combinator Summer 2022 company founded by Artem Bugara and Maksym Sugonyaka (registered in Delaware, team mostly in Europe), does that cleanup on its side: articles come back summarised, deduplicated, clustered into stories and tagged with entities. Version 3 of the API covers 140,000+ sources in 50+ languages with more than 2 billion articles since 2019 (per company website; independently unverifiable), and a separate Local News endpoint adds a location and a confidence score to each story. Official SDKs exist for Python, Node and Java, and the company reports SOC 2 Type II and a 99.95% uptime SLA. The catch for a solo developer is price discovery: there is a pay-as-you-go trial, but production plans are quoted by sales.

Massive (ex-Polygon.io) News

Massive is the name Polygon.io took on October 30, 2025. The company was founded in Atlanta around 2016 by Quinton Pike, and old api.polygon.io endpoints keep working beside the new api.massive.com base. Its ticker news endpoint returns recent articles for a symbol with summaries, publisher details and an insights array giving a sentiment label and a one-sentence reason for each ticker mentioned. Sentiment only exists for articles published after July 2, 2024. Ticker news is included in every Stocks plan: the free Basic tier reaches two years of history, and Stocks Starter costs $29 a month. Official SDKs cover Python, Go, JavaScript and more, and flat files can be pulled from S3.

Features: NewsCatcher vs Massive (ex-Polygon.io) News

Capability NewsCatcher Massive (ex-Polygon.io) News
Full article text ✓ ✗
Historical archive ✓ ✓
NLP enrichment ✓ ✓
Story/event clustering ✓ ✗
Official SDK ✓ ✓
Streaming or webhooks ✓ ✗
Free access ✓ ✓

Formats and SDKs: NewsCatcher vs Massive (ex-Polygon.io) News

Format / SDK NewsCatcher Massive (ex-Polygon.io) News
REST API ✓ ✓
Python SDK ✓ ✓
Node.js SDK ✓ ✓
Webhooks ✓ N/A
WebSocket N/A ✓
MCP server N/A N/A
S3/bulk delivery ✓ ✓
BigQuery N/A N/A

Pricing comparison: NewsCatcher vs Massive (ex-Polygon.io) News

Criterion NewsCatcher Massive (ex-Polygon.io) News
Entry price Custom quote $29/mo
Pricing model Custom quote; pay-as-you-go trial Monthly plans per asset class
Access models Free trial, Pay-as-you-go, Enterprise contract Free tier, Monthly plans, Enterprise contract
Price transparency Quote only Public price
Price tier Enterprise / quote Budget

Who each API suits: NewsCatcher vs Massive (ex-Polygon.io) News

Dimension NewsCatcher Massive (ex-Polygon.io) News
Buyer type Individuals to enterprise Individuals to enterprise
Typical uses AI & LLM apps, Media monitoring, Risk & compliance Financial services, Research & academia
Example use cases Retrieval for an AI agent that should not see five copies of the same story. A regional news or local-risk feature that needs geotagged articles. News beside charts in a trading app. Explaining price moves with sentiment reasons.
How you get access Free trial Free tier

NewsCatcher vs Massive (ex-Polygon.io) News: pros and cons

NewsCatcher
+ Deduplication and story clustering run server-side, so you skip writing your own similarity matching
+ Three official SDKs (Python, Node, Java) plus webhooks and S3 delivery
+ The Local News endpoint returns a place name with a 0–10 confidence score per article
+ SOC 2 Type II and an uptime SLA make the security questionnaire shorter when the project goes to production
+ It publishes a recall comparison against other APIs, though the vendor ran the test itself
- You cannot see production prices without talking to sales
- History begins in 2019, so long backfills need another source
- A small company is behind the enterprise SLA
Massive (ex-Polygon.io) News
+ News comes with every Stocks plan, including the free one
+ Sentiment includes a short explanation you can show users
+ Mature SDKs and WebSocket streams for prices
+ Old Polygon code keeps working after the rebrand
- Sentiment is missing for anything before July 2024
- Covers listed companies only
- Each asset class is billed separately

Who should choose NewsCatcher?

A typical fit: retrieval for an AI agent that should not see five copies of the same story.

Summaries, story clusters, entities and geotags arrive in the response, so the processing code you would otherwise write is already done. Paid access is quote-based. Typical uses: AI & LLM apps, Media monitoring, Risk & compliance, Financial services.

Who should choose Massive (ex-Polygon.io) News?

A typical fit: news beside charts in a trading app.

Per-ticker sentiment with a written reason, included in stock data plans. Paid access starts at $29/mo. Typical uses: Financial services, Research & academia.

Decision matrix: NewsCatcher vs Massive (ex-Polygon.io) News

Your situation Recommended choice
You want to start free before paying Both
Your budget is at the lower end Massive (ex-Polygon.io) News
You need full article text in the response NewsCatcher
You need years of historical news Both
You want an official SDK Both
You are wiring news into an LLM agent NewsCatcher

Use case fit: NewsCatcher vs Massive (ex-Polygon.io) News

Use case NewsCatcher fit Massive (ex-Polygon.io) News fit Winner
AI & LLM apps Strong Limited NewsCatcher
Media monitoring Strong Limited NewsCatcher
Risk & compliance Strong Limited NewsCatcher
Financial services Strong Strong Both equally
Research & academia Limited Strong Massive (ex-Polygon.io) News

Verdict: NewsCatcher vs Massive (ex-Polygon.io) News

NewsCatcher (4.7/5) is the stronger overall choice as a news data source. Summaries, story clusters, entities and geotags arrive in the response, so the processing code you would otherwise write is already done.

Massive (ex-Polygon.io) News (3.8/5) is worth a look if you need explaining price moves with sentiment reasons. If your situation matches that, Massive (ex-Polygon.io) News is a competitive option.

Related comparisons

NewsCatcher vs Massive (ex-Polygon.io) News FAQ

Is NewsCatcher better than Massive (ex-Polygon.io) News?

NewsCatcher (4.7/5) scores higher overall, but "better" depends on your use case. NewsCatcher's strongest advantage: deduplication and story clustering run server-side, so you skip writing your own similarity matching. Massive (ex-Polygon.io) News's strongest advantage: news comes with every Stocks plan, including the free one.

How do NewsCatcher and Massive (ex-Polygon.io) News differ in pricing?

NewsCatcher: custom quote; pay-as-you-go trial, priced by quote. Massive (ex-Polygon.io) News: monthly plans per asset class, with paid access from $29/mo. Both offer some free access for testing.

Which is better for enterprise: NewsCatcher or Massive (ex-Polygon.io) News?

Both sell enterprise contracts. Neither carries licensed publisher content, so check copyright terms before republishing anything.

What are the main differences between NewsCatcher and Massive (ex-Polygon.io) News?

What sets NewsCatcher apart: Summaries, story clusters, entities and geotags arrive in the response, so the processing code you would otherwise write is already done. What sets Massive (ex-Polygon.io) News apart: per-ticker sentiment with a written reason, included in stock data plans. They also differ on entry price (Custom quote vs $29/mo) and typical uses (AI & LLM apps, Media monitoring vs Financial services, Research & academia).

Verify all details directly with each API before making a decision.