Finance and accounting decision
RealMarketAPI
A capable developer can build a useful self-hosted subset (live prices, history, WebSocket, basic indicators) using ccxt + QuestDB, but matching the commercial product's SLA, MCP tooling, SDK ecosystem, and enterprise guarantees is impractical without significant ops and legal work.
Visit website↗$4.99/mo
$60/yr
Read off the official pricing page.
$100one-off68 h to build
$130/mo6 h/mo upkeep
On cash alone, building overtakes the subscription at 28 seats.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- Ingest live feeds from public exchange APIs, normalize and persist tick/OHLC data, serve current price and historical OHLC via REST and WebSocket, compute a few technical indicators on-demand, and enforce API-key authentication and request quotas.
What it still won’t have
- Enterprise SLA (99.99% uptime and dedicated support)
- Global managed infrastructure and CDN-backed endpoints
- Quota-free MCP server and turnkey AI integrations
- Official SDKs, widgets, and Chrome extension
- Commercial-grade exchange connectivity guarantees and negotiated data agreements
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 28 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal self-hosted RealMarketAPI clone using Node.js (Express + ws), ccxt for exchange connectors, and QuestDB for time-series storage. Core features in scope: ingest live ticks and produce 1m OHLC, normalize symbols, persist ticks and OHLC, REST endpoints for current price and paginated historical H1/H1 (configurable), a WebSocket subscription endpoint pushing completed candles and ticks, on-demand SMA/EMA/RSI indicator endpoints, API-key auth with simple per-key rate limits, Dockerfiles for each service, and unit/integration tests. Out of scope: MCP protocol server, enterprise SLA, SDK libraries, multi-region CDN, commercial data licensing. Provide error handling, reconnect/backoff for exchange feeds, basic metrics (request counts, lag), and automated setup scripts (docker-compose).
How we checked
How the score was reached
- Partly verdict base52
- 3 cited sources+3
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Evidence score62
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productRealMarketAPI - Realtime Market Data API for Developers
- official pricingSimple, Transparent Pricing | RealMarketAPI
- official docsPowerful Features | RealMarketAPI
Integrity checks
What held up, and what did not.
