Market data + news · crypto · stocks · FX

One API for
every market's data.

Building anything on markets means stitching together a crypto vendor, an equities vendor, an FX feed — and then a news vendor on top. AsherCore replaces all of them. Candles, live prices, funding and order books plus Asher Wire — our own newsroom feed with a machine-readable market signal on every story — from one key, one clean REST endpoint, one bill.

Get your free API key Read the docs →

◆ No exchange accounts ◆ Wire news included ◆ No card to start

GET /api/market/candles?coin=BTC&interval=1h&limit=5

coin tf limit

// Press Run to hit the live AsherCore API…

Live production endpoint · data from our own store · no exchange keys, nothing to install

The problem

Market data is a plumbing tax.

Before you write a line of real product, you're already a data-integration team. Three vendors, three schemas, three invoices — and a support queue full of geo-blocks and rate-limit errors.

⛓️‍💥

Fragmented sources

Crypto here, equities there, FX somewhere else — each returns a different shape, different symbols, different timestamps. You spend weeks writing adapters and normalization before you ship anything users can see.

⛔

Geo-blocks & rate limits

Live-exchange proxies 451 your servers, throttle you at the worst moment, and go dark when a venue does. Your uptime becomes hostage to infrastructure you don't control.

💸

Priced per silo

Incumbents charge per asset class and gate history behind higher tiers. Want candles, funding and a stock feed? That's three plans — and the bill scales faster than your app does.

The solution

Delete the integration layer.

The old way

✕ Sign up with 3–4 vendors, one per asset class
✕ Wire per-exchange API keys & OAuth flows
✕ Write & maintain a normalization layer
✕ Absorb geo-blocks, throttling & venue outages
✕ Pay separate bills, gate deep history behind tiers
✕ Stitch funding & order books from yet more feeds
✕ Buy a separate news/sentiment subscription on top

◆ With AsherCore

✓ One key covers crypto, stocks & FX
✓ Plain HTTPS + JSON — no SDK, no exchange creds
✓ Every asset returns the same normalized shape
✓ Served from our own store — rate-stable, no geo-block
✓ One bill, deep history on every plan
✓ Candles, live prices, funding & order books together
✓ Asher Wire news + per-asset signals in the same key

How it works

Infrastructure we already run — opened as an API.

The same pipeline that powers our own charts and backtester now powers yours. You call one endpoint; we've done everything upstream of it.

🛰️

Ingest

We pull from multiple venues across crypto, equities & FX on a continuous schedule.

🧬

Normalize

Every symbol, timestamp & candle is mapped to one canonical shape with provenance tags.

🗄️

Store

Warm, read-through cache holds deep history — no live-exchange call on your request path.

⚡

Serve

You hit one REST endpoint with your key and get fast, rate-stable JSON back.

Instruments across crypto, stocks & FX

Venues ingested & normalized

Served from our own store — 0 live-exchange calls

1m→1W

Native & resampled timeframes

Why teams pick AsherCore

Built for people who ship.

◇

Our own data

Every response comes from our warm, read-through store — not a live-exchange proxy. Fast, rate-stable, and it won't 451 or geo-block your servers. The data that runs our platform runs yours.

⏱

Deep history, every TF

Candles at the native base interval, resampled on read to any timeframe from 1m to 1W. Scroll-back pagination reaches years of history through a single cursor.

◧

Multi-asset, one shape

Crypto, equities and forex all return the same JSON — {time,open,high,low,close,volume} — with provenance tags so you always know the source.

⚡

Real-time streaming

Prices pushed over Server-Sent Events the instant a mid moves — no polling loop to write. Plus quotes, perpetual funding rates and a funding radar for the derivatives context most candle APIs skip.

🔑

One key, simple auth

Sign up, grab your key, pass it as a header or query param. No OAuth dance, no per-exchange credentials, no SDK required — just HTTPS and JSON.

◱

Catalog & screener

Enumerate the whole tradable universe, or hit the screener for a ranked, filtered slice — perfect for building watchlists and discovery UIs.

Included in every plan

Asher Wire — the news feed
that speaks market data.

Everyone else sells you prices and then sells you news separately. AsherCore ships both on one key. Asher Wire is our own newsroom pipeline — continuous ingest, an original brief written for every story in English and Spanish, and an economic calendar with forecast, previous and actual.

The part that matters for a data API: every story carries a structured signal — a bias, the assets it moves, and the reasoning. So news isn't a blob of text you have to parse. It's a number you can join to the same symbol you pull candles for.

◆ Structured, not scrapedbias · assets · rationale on every story

◆ Joinable to candlesper-asset score from −1 to +1

◆ You configure the streamcategory · asset · bias · source · recency

◆ EN + ES nativelyevery headline & brief, both languages

See the Wire live → Wire docs

GET /api/wire/signals

Press Run to pull the live Asher Wire signal board…

Live production endpoint · our own newsroom · included on every plan

The API

A handful of endpoints, all you need.

Everything is GET, returns JSON, and is rate-limited by your plan. Base URL https://ashercore.com.

GET

/api/market/candles

OHLCV candles for any instrument. ?coin=BTC&interval=1h&limit=500. Paginate older history with &before=<unix>; multi-venue via &venue=.

GET

/api/market/catalog

The full instrument universe — every symbol we ingest, pre-tagged with venue & class. Your symbol picker in one call.

GET

/api/market/coins

Priced majors — the fast, cached snapshot of top instruments with last price & change.

GET

/api/market/quote

Latest quote for a single instrument. ?coin=ETH.

GET

/api/market/mids

Live mid prices — the low-latency tick feed for tickers and dashboards.

SSE

/api/market/stream

Prices pushed, not polled — Server-Sent Events that tick the instant a mid moves. ?coins=BTC,ETH,SOL. Browsers reconnect for free with EventSource; one line replaces your polling loop.

GET

/api/market/funding

Perpetual funding rates by instrument. Pair with /api/market/funding-radar for a ranked cross-venue view.

GET

/api/market/orderbook

Order-book depth snapshot for an instrument.

GET

/api/market/screener

Ranked, filterable slice of the universe for discovery & watchlists.

GET

/api/market/venues

The venues we ingest and their coverage metadata.

Asher Wire INCLUDED

GET

/api/wire/headlines

The live wire — original briefs with source attribution. ?limit=20&category=crypto&lang=en. Add &q= or &page= to search the rolling archive instead.

GET

/api/wire/signals

Per-asset news bias rolled up across the wire — score from −1 to +1 with the stories behind it. Join it to the same symbol you pull candles for. ?asset=BTC&bias=bullish.

GET

/api/wire/article

One story (or up to 25) by id, straight from the archive. ?id=1sn2dq9&lang=es.

GET

/api/wire/calendar

Economic calendar — release time, impact, forecast, previous and actual. ?impact=high.

GET

/api/wire/stream

Configure your feed instead of taking the firehose. Filter by category, asset, bias, source, recency — then mint a stream token and call one URL forever. ?category=crypto&assets=BTC&bias=bullish.

SSE

/api/wire/live

The wire pushed, not polled — Server-Sent Events with the same filters. Resume without duplicates via Last-Event-ID; browsers reconnect for free with EventSource.

GET

/api/openapi.json

The whole surface as an OpenAPI 3.1 spec — import it into Postman, generate a client, or hand it to an agent.

Full parameters, response shapes and rate limits in the docs →

Quickstart

Your first call in 30 seconds.

# Latest 500 hourly BTC candles
curl "https://ashercore.com/api/market/candles?coin=BTC&interval=1h&limit=500" \
  -H "Authorization: Bearer YOUR_ASHERCORE_KEY"

const res = await fetch(
  "https://ashercore.com/api/market/candles?coin=BTC&interval=1h&limit=500",
  { headers: { Authorization: "Bearer YOUR_ASHERCORE_KEY" } }
);
const { candles } = await res.json();
console.log(candles[0]); // { time, open, high, low, close, volume }

import requests
r = requests.get(
    "https://ashercore.com/api/market/candles",
    params={"coin": "BTC", "interval": "1h", "limit": 500},
    headers={"Authorization": "Bearer YOUR_ASHERCORE_KEY"},
)
candles = r.json()["candles"]
print(candles[0])  # {'time':…, 'open':…, 'high':…, 'low':…, 'close':…, 'volume':…}

The competition

One key does what the field needs four plans for.

The incumbents are strong at their own silo — but market data isn't one silo. Here's how AsherCore stacks up against the vendors teams usually chain together.

	One APIAsherCore	Polygon.io	CoinAPI	CoinGecko API	Kaiko / Amberdata
Crypto + Stocks + FX, one key	✓	Separate plans	Crypto only	Crypto only	Crypto focus
Entry paid plan	$29/mo	$29–79/mo per class	~$79/mo	~$129/mo	Enterprise quote
Owns its data pipeline	✓ end to end	Aggregated	Aggregated	Aggregated	Aggregated
Candles · quotes · catalog	✓	✓	✓	✓	✓
Funding rates + order books	✓ included	Limited	✓ (higher tier)	Partial	✓
News feed in the same subscription	✓ Asher Wire included	Ticker news (stocks)	None	Headlines (crypto)	None
Machine-readable signal per story	✓ bias · assets · rationale	Sentiment tags only	—	Related coins only	—
Deep history on entry tier	✓	Tiered	Tiered	Tiered	✓
No exchange accounts to wire	✓	✓	✓	✓	✓
One normalized JSON shape	✓ every asset	Per class	✓ crypto	✓ crypto	✓ crypto

Competitor prices & capabilities are indicative list details for comparison and may change — check each provider for current terms. AsherCore's edge is structural: one key spans every asset class, and the data is served from infrastructure we own end to end.

Pricing

Start free. Scale when the data earns it.

Every plan runs the same endpoints and the same data — market data and Asher Wire, one quota across both. You pay for volume, rate limits and history depth — priced to sit below the incumbents, who bill news as a separate subscription.

Sandbox

$0 / forever

Prototype and evaluate, free.

10,000 calls / month
1 request / sec
30-day history
All REST endpoints
Asher Wire — live feed
Community support

Get free key

Starter

$29 / mo

For a single app in production.

500,000 calls / month
10 requests / sec
Full deep history
Candles · quotes · catalog
Wire signals + econ calendar
Email support

Choose Starter

Growth

$99 / mo

For products with real traffic.

5,000,000 calls / month
50 requests / sec
Funding & order books
Full Wire archive + search
Bulk / CSV export
Priority support

Choose Growth

Scale

$299 / mo

For desks & data-heavy platforms.

25,000,000 calls / month
200 requests / sec
All venues & asset classes
Wire, signals & full archive
99.9% uptime target
Dedicated support

Choose Scale

⚡ Need bulk history dumps, a private deployment, or an SLA? Talk to us about Enterprise →

Prices in USD, billed monthly. No card required to start on Sandbox.

One API for
every market's data.

Market data is a plumbing tax.

Fragmented sources

Geo-blocks & rate limits

Priced per silo

Delete the integration layer.

Infrastructure we already run — opened as an API.

Ingest

Normalize

Store

Serve

Built for people who ship.

Our own data

Deep history, every TF

Multi-asset, one shape

Real-time streaming

One key, simple auth

Catalog & screener

Asher Wire — the news feed
that speaks market data.

Prices that push, not poll.

A handful of endpoints, all you need.

Asher Wire INCLUDED

Your first call in 30 seconds.

One key does what the field needs four plans for.

Start free. Scale when the data earns it.

Sandbox

Starter

Growth

Scale

Ship on market data today.

One API forevery market's data.

Market data is a plumbing tax.

Fragmented sources

Geo-blocks & rate limits

Priced per silo

Delete the integration layer.

Infrastructure we already run — opened as an API.

Ingest

Normalize

Store

Serve

Built for people who ship.

Our own data

Deep history, every TF

Multi-asset, one shape

Real-time streaming

One key, simple auth

Catalog & screener

Asher Wire — the news feedthat speaks market data.

Prices that push, not poll.

A handful of endpoints, all you need.

Asher Wire INCLUDED

Your first call in 30 seconds.

One key does what the field needs four plans for.

Start free. Scale when the data earns it.

Sandbox

Starter

Growth

Scale

Ship on market data today.

One API for
every market's data.

Asher Wire — the news feed
that speaks market data.