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API Lifecycle Governance

Hashtag Web3 API Versioning & Deprecation Policy

Predictable stability guarantees for autonomous AI agents, enterprise partners, and developer integrations.

12-Month Sunset Notice

We guarantee a minimum of 12 months advance notice prior to sunsetting or breaking any public REST endpoint or schema.

RFC 8594 Headers

Every API response transmits machine-readable Deprecation, Sunset, and API-Version headers.

Backward Compatible

Additive changes (new optional fields, new parameters) are made seamlessly without version increments.

Current API Lifecycle Status

VersionBase PathStatusDeprecated DateSunset Date
v1.0.0/api/v1/*
Active / Current
N/ADec 31, 2026
Sandbox/api/sandbox/*
Zero-Auth Test
N/AIndefinite

Deprecation & Sunset Response Headers

Hashtag Web3 implements the standard HTTP deprecation draft specifications (RFC 8594). Automated AI agents should monitor these headers in responses:

# Current version identifier
API-Version: 1.0.0
# Unix timestamp when deprecation was announced
Deprecation: @1767225600
# HTTP-date when endpoint will cease operation
Sunset: Wed, 31 Dec 2026 23:59:59 GMT
# Link to deprecation policy & migration guides
Link: <https://hashtagweb3.com/api-policy>; rel="deprecation"
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