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Massive (formerly Polygon.io) Crypto:open Close API

The crypto:open-close API from Massive (formerly Polygon.io) — 1 operation(s) for crypto:open-close.

Massive (formerly Polygon.io) Crypto:open Close API is one of 70 APIs that Massive (formerly Polygon.io) publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 6 JSON Schema definitions.

Tagged areas include crypto:open-close. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and 6 JSON Schemas.

This API exposes 1 operation across 1 path. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against 2 base URLs: https://api.polygon.io, https://api.staging.polygon.io.

1 operations 1 paths 0 schemas 1 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
wss://socket.polygon.io
Authentication
API Key
Resource Areas
1

Authentication & Security 1

Massive (formerly Polygon.io) Crypto:open Close API declares 1 security scheme for authenticating requests. An API key is passed in the query as apiKey (apiKey). By default, every request must be authenticated.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.

crypto:open-close 1
GET
/v1/open-close/crypto/{from}/{to}/{date}
Daily Open/Close
GetCryptoOpenClose 4 params → 200default

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

massive-com-crypto-open-close-api-openapi.yml Raw ↑

Other APIs Massive (formerly Polygon.io) publishes across the network.

Polygon WebSocket API
Polygon.io Stocks API
Polygon.io Options API
Polygon.io Indices API
Polygon.io Forex API
Polygon.io Crypto API
Polygon.io Futures API
Massive (formerly Polygon.io) Benzinga API
Massive (formerly Polygon.io) Crypto:aggregates API
Massive (formerly Polygon.io) Crypto:last:trade API
Massive (formerly Polygon.io) Crypto:snapshot API
Massive (formerly Polygon.io) Crypto:trades API
Where this information came from

This is an independent, third-party profile of Massive (formerly Polygon.io) Crypto:open Close API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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