Extensively used within the Wolfram System itself, the Wolfram Symbolic Transfer Protocol (WSTP) is the Wolfram System's unique high-level symbolic interface standard for interprogram communication. With convenient bindings for a variety of languages, WSTP immediately allows arbitrary symbolic objects—representing data, programs, or any other construct—to be efficiently exchanged between programs, on one computer or across a heterogeneous network.

Installable WSTP Programs »

Install — run a WSTP-installable external program

LinkPatterns — find functions available in a running WSTP program

wsprep — externally prepare a WSTP-installable program

WSTP Wolfram Language Functions »

LinkLaunch, LinkConnect, LinkCreate, LinkActivate — initiate WSTP programs and connections

LinkRead, LinkWrite — read and write expressions on a WSTP connection

Links — list all currently open links

C Language Functions »

WSPutInteger32()  ▪  WSGetInteger32()  ▪  WSPutString()  ▪  WSPutFunction()  ▪  ...

WSOpenString()  ▪  WSNextPacket()  ▪  WSTransferExpression()  ▪  ...

Java Functions »

evaluate()  ▪  evaluateToOutputForm()  ▪  evaluateToImage()  ▪  ...

put()  ▪  getInteger()  ▪  getObject()

createKernelLink()  ▪  waitForAnswer()

C#/.Net Functions »

Evaluate()  ▪  EvaluateToOutputForm()  ▪  EvaluateToImage()  ▪  ...

Put()  ▪  GetInteger()  ▪  GetObject()

CreateKernelLink()  ▪  WaitForAnswer()

Related Tech Notes

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• The Structure of the Wolfram System
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• How WSTP Is Used
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• Installing Existing WSTP-Compatible Programs
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• Setting Up External Functions to Be Called from the Wolfram Language
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• WSTP C API Developer Guide (CMake)

Related Guides

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• Listing of WSTP C Functions
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• J/Link
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• .NETLink
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• Parallel Computing
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• Importing & Exporting