BytNode, les données du marché crypto conçues pour l’IAConnectez l’IA aux
marchés crypto.

Official client libraries for the BytNode crypto market-data API.

Published on PyPI and npm; each GitHub release also carries the wheel and the tarball.

from bytnode import Bytnode

with Bytnode() as client:  # reads BYTNODE_API_KEY; closes its connections on exit
    rate = client.funding.rate("BTCUSDT")  # works on the free plan
    print(rate.data.rate_pct if rate.data else rate.unavailable)

import { Bytnode } from 'bytnode';

const client = new Bytnode(); // reads BYTNODE_API_KEY
const { data } = await client.funding.rate({ symbol: 'BTCUSDT' });

Get a key at bytnode.com/dashboard/keys.

• Every route, typed. All 140 REST routes, named after their path: /v1/funding/rate/history is client.funding.rate.history(...). Parameters with a closed set of values are typed; every row is a typed model with the API's own field names and its dates already converted.
• Pagination handled. .iter() follows next page after page, with the largest pages the route allows. Time bounds as you write them: a date, an ISO string or epoch milliseconds.
• Errors you can act on. One exception per situation (InvalidRequestError, PermissionDeniedError, RateLimitError...) carrying the stable code, the faulty param and the API's explanation.
• Retries done right. Rate limits wait for Retry-After, 502/503/504 and network errors back off with jitter, a spent monthly quota fails fast instead of sleeping.
• Real-time stream. The WebSocket with automatic reconnection and re-subscription, typed messages, and loss detection from the sequence numbers.
• pandas (Python): .to_pandas() on any response or history, indexed by time.
• MCP in one command. bytnode mcp install cursor (or claude-desktop, claude-code, vscode, windsurf) plugs the BytNode MCP server into your AI client.

The route methods and the models are generated from the public OpenAPI contract (spec/openapi.json, a copy of api.bytnode.com/openapi.json) by codegen/; the transport, retries, pagination, stream and CLI are written by hand. When the API changes, make update-spec generate refreshes both SDKs — see CONTRIBUTING.md.

• API documentation: https://bytnode.com/docs
• API changelog: https://bytnode.com/docs/changelog
• SDK changelog: CHANGELOG.md
• Security: SECURITY.md

The code of the SDKs is MIT licensed (LICENSE). The data you fetch with them is governed by your BytNode subscription.