API Codex - Developer APIs

The Developer Toolbox API bundles the six utilities you reach for daily into a single, dependency-free HTTP API running on Cloudflare's global edge network.

Generate RFC 4122 v4 UUIDs in batches, compute MD5 / SHA-1 / SHA-256 / SHA-384 / SHA-512 digests, encode and decode unicode-safe (and URL-safe) base64, inspect JWT headers and payloads without touching the signature, mint cryptographically-secure passwords with fine-grained character-class control, and turn any string into a clean URL slug.

Every endpoint is pure compute — no third-party calls, no rate-limited upstreams, no surprise latency. Responses come back as clean, flat JSON with predictable shapes.

Get a free API key at dash.apicodex.io.

Notes:

MD5 and SHA-1 are provided for checksums and legacy interop only (not collision-resistant).
JWT decode intentionally does not verify signatures; treat decoded claims as untrusted.

The Developer Toolbox API bundles the six utilities you reach for daily into a single, dependency-free HTTP API running on Cloudflare's global edge network.

Every endpoint is pure compute — no third-party calls, no rate-limited upstreams, no surprise latency. Responses come back as clean, flat JSON with predictable shapes.

Get a free API key at dash.apicodex.io.

Notes:

MD5 and SHA-1 are provided for checksums and legacy interop only (not collision-resistant).
JWT decode intentionally does not verify signatures; treat decoded claims as untrusted.