Available in mastodon, toot code with #zxspectrumbot and it will reply with a video.

Supported directives:

{Z} Use Boriel zxbasic

{A} Use assembler language

{Snn} Record video for nn seconds(20-99)

{Bnn} Begin recording after nn seconds

{+} Use zxspectrum + emulation

{Xnn} Accelerate nn times (1-20). 

Note: this option disables sound and posts result as gif. Use with caution.

You can also toot a gist raw url with code.

example:

#zxspectrumbot {S32}

10 PAPER 0:INK 6:CLS

20 PRINT "HELLO WORLD"

30 GO TO 20

source code available
https://github.com/marianodominguez/ZxSpectrumBot