A reference for writing Python scripts for IDA Pro, a reverse-engineering program used to inspect compiled software. It covers disassembly, decompilation, binary data, functions, types, and cross-references.

Use it to inspect and modify IDA databases, analyze machine code, find functions and references, work with types and memory, and interact with the decompiler.

It helps navigate IDA Pro’s modern Python interfaces without relying on outdated modules or guessing which API handles a task.

idapython — Skill for Claude Code by mrexodia

About the project

ida-pro-mcp connects IDA Pro, a program for examining compiled software, with language models through the Model Context Protocol, allowing an AI assistant to help with reverse engineering. Reverse engineers use it with IDA Pro and a supported MCP client to investigate binary programs. The catalogue entries provide the plugin, skill, and instructions for using this integration.

mrexodia/ida-pro-mcp · 11,852 stars · on GitHub · plugins.hex-rays.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add mrexodia/ida-pro-mcp --skill idapython

Clone the repo

git clone --depth 1 https://github.com/mrexodia/ida-pro-mcp

Made for: Claude Code.

Or install ida-pro-mcp, the plugin that ships this one along with the rest of its 1 skill.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/mrexodia/ida-pro-mcp/idapython.svg)](https://agentmods.dev/skills/mrexodia/ida-pro-mcp/idapython)

Your own site

<a href="https://agentmods.dev/skills/mrexodia/ida-pro-mcp/idapython"><img src="https://agentmods.dev/badge/skills/mrexodia/ida-pro-mcp/idapython.svg" alt="Measured on agentmods" height="20"></a>

Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,547 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00077	$0.01547
Opus 5	$0.00039	$0.00773
Sonnet 5	$0.00015	$0.00309
Haiku 4.5	$0.00008	$0.00155

Measured 7d ago against content hash 421e209611d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

idapython scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

6 near-identical copies found in the catalogue:

idapython — 100% identical, 0 lines differ
idapython — 100% identical, 0 lines differ
idapython — 100% identical, 0 lines differ
idapython — 100% identical, 0 lines differ
idapython — 100% identical, 0 lines differ
idapython — 100% identical, 0 lines differ

skills/idapython/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IDAPython

Use modern ida_* modules. Avoid legacy idc module.

Module Router

Task	Module	Key Items
Bytes/memory	`ida_bytes`	`get_bytes`, `patch_bytes`, `get_flags`, `create_*`
Functions	`ida_funcs`	`func_t`, `get_func`, `add_func`, `get_func_name`
Names	`ida_name`	`set_name`, `get_name`, `demangle_name`
Types	`ida_typeinf`	`tinfo_t`, `apply_tinfo`, `parse_decl`
Decompiler	`ida_hexrays`	`decompile`, `cfunc_t`, `lvar_t`, ctree visitor
Segments	`ida_segment`	`segment_t`, `getseg`, `add_segm`
Xrefs	`ida_xref`	`xrefblk_t`, `add_cref`, `add_dref`
Instructions	`ida_ua`	`insn_t`, `op_t`, `decode_insn`
Stack frames	`ida_frame`	`get_frame`, `define_stkvar`
Iteration	`idautils`	`Functions()`, `Heads()`, `XrefsTo()`, `Strings()`
UI/dialogs	`ida_kernwin`	`msg`, `ask_*`, `jumpto`, `Choose`
Database info	`ida_ida`	`inf_get_*`, `inf_is_64bit()`
Analysis	`ida_auto`	`auto_wait`, `plan_and_wait`
Flow graphs	`ida_gdl`	`FlowChart`, `BasicBlock`
Register tracking	`ida_regfinder`	`find_reg_value`, `reg_value_info_t`

Core Patterns

Iterate functions

for ea in idautils.Functions():
    name = ida_funcs.get_func_name(ea)
    func = ida_funcs.get_func(ea)

Iterate instructions in function

for head in idautils.FuncItems(func_ea):
    insn = ida_ua.insn_t()
    if ida_ua.decode_insn(insn, head):
        print(f"{head:#x}: {insn.itype}")

Cross-references

for xref in idautils.XrefsTo(ea):
    print(f"{xref.frm:#x} -> {xref.to:#x} type={xref.type}")

Read/write bytes

data = ida_bytes.get_bytes(ea, size)
ida_bytes.patch_bytes(ea, b"\x90\x90")

Names

name = ida_name.get_name(ea)
ida_name.set_name(ea, "new_name", ida_name.SN_NOCHECK)

Decompile function

cfunc = ida_hexrays.decompile(ea)
if cfunc:
    print(cfunc)  # pseudocode
    for lvar in cfunc.lvars:
        print(f"{lvar.name}: {lvar.type()}")

Read the full file on GitHub · 155 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

7d ago First seen · 155 lines · 77 tokens per session scan A 421e209611d0

Subscribe to this mod's changes

idapython is a skill published in the GitHub repository mrexodia/ida-pro-mcp (11,852 stars, last pushed 9d ago), licensed MIT. It adds 77 tokens to every session and 1,547 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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