The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Newsflash listing page.
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Five years of corroborated news events, queryable by agents. newsflash.sh watches 260+ outlets across geographies and languages and collapses the noise into a deduped event graph — one happening, every source that corroborated it, a confidence score — live to the minute and backfilled five years deep, so agents can backtest on history and act on the wire. Served over MCP, a CLI, a real-time SSE stream, and a plain HTTP API.
Humans read; agents query. No account needed to start.
For agents: Newsflash is a hosted service —
newsflash.shis a domain, not a shell script. There is no local binary or server to install: callhttps://newsflash.sh/api/*(REST) orhttps://newsflash.sh/mcp(MCP) directly. Verify withcurl "https://newsflash.sh/api/events?limit=1".
The event graph is served over MCP's Streamable HTTP transport at
https://newsflash.sh/mcp — listed in the official MCP registry as
sh.newsflash/newsflash, and in Claude's connector directory (in claude.ai
or Claude Desktop: Settings → Connectors → Browse connectors → search
"Newsflash" → Connect). Any other MCP host, point it at the URL:
Claude Code plugin install:
The endpoint is stateless (each request independent). Tools: get_events,
get_event, search_articles, list_sources, corpus_stats. Setup guides for
Claude, Cursor, ChatGPT and other hosts: newsflash.sh/docs.
A ready-made skill ships in this repo (skills/newsflash/) —
personalized daily briefings + real-time breaking-news alerts:
Then tell your agent "set up my news briefing". It interviews you for interests, schedules a daily brief, and (if you enable alerts) watches the live stream and pings you when a story crosses your corroboration threshold.
A standalone, zero-dependency npm package (./cli, published as
newsflash):
Base URL https://newsflash.sh:
| Method | Route | Purpose |
|---|---|---|
| GET | /api/events?q=&source=&category=&from=&to=&limit= | Deduped events |
| GET | /api/events/:id | One event + corroborating articles |
| GET | /api/articles?… | Raw article search |
| GET | /api/sources | Tracked sources + counts |
| GET | /api/stats · /api/health | Corpus size & freshness |
| GET | /api/stream | Real-time SSE push — event.new / event.corroborated as clustering commits |
| POST | /mcp | MCP server (Streamable HTTP) — the agent-facing surface |
Categories: crypto tradfi business tech politics world science
health energy sports.
The full REST surface is described in openapi.yaml — an
OpenAPI 3.1 spec with exact request/response schemas for every endpoint above
(including the SSE stream and the auth flow), derived from the live API. Import
it into Pipedream, RapidAPI, Postman, or a custom GPT Action to drive Newsflash
from your own tooling, or generate a typed client with any OpenAPI generator.
| Tier | Auth | Limit | How |
|---|---|---|---|
| test | none | 50 req/day (per IP) · 24h lookback · 1 stream | just call the API or MCP endpoint |
| free | API key | 1,000 req/day · 30-day lookback · 2 streams | newsflash login — email + one-time code |
| premium | subscription | 50,000 req/day · full 5-year archive · 10 streams | newsflash upgrade — $29/mo |
Pass the key as Authorization: Bearer nf_… (or x-api-key) — same gate for REST
and /mcp. Every response carries X-RateLimit-Limit / X-RateLimit-Remaining /
X-Newsflash-Tier; limits reset at midnight UTC. Keys are shown once and stored
only as hashes.
New articles are normalized and matched against recent events using trigram
similarity — across categories, so a crypto outlet and a tradfi outlet
reporting the same happening corroborate one event. Above the similarity
threshold → the article attaches to the event and bumps its corroboration;
otherwise it seeds a new event. confidence = min(1, distinct_sources / 3) — an
event corroborated by 3+ independent outlets maxes out.
That makes the graph a signal instrument: agents can distinguish a
single-outlet rumor (confidence 0.33) from a story the whole press corps is
running (confidence 1.0, sources listed), and query the full archive to
backtest on history.
This repo holds the open-source (MIT) client surface of Newsflash: the
zero-dependency CLI (cli/), the Claude Code plugin manifests
(.claude-plugin/), and the MCP registry manifest
(server.json). The Newsflash backend is a hosted service
operated at newsflash.sh and is not part of this
repository.
CLI development: cd cli && npm install && npm run build && node dist/index.js stats.
No runtime dependencies — Node ≥ 20 built-ins only.
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