Experimental package — This module provides a set of MCP tools to retrieve information from GitHub
Free
Nothing to run from here
Openocd is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
Open Installation—
p95 latency
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call success
local
runs on your machine
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calls last 7d
What it does
MCP server to debug microcontrollers from Claude through OpenOCD (flash, halt/step, memory/registers, breakpoints, variables and peripheral registers by name).
Quickstart
# 1 — install (mcprush login holds a key from your dashboard)
npx mcprush@latest add openocd-mcp
# 2 — ask your agent something
> MCP server to debug microcontrollers from Claude through OpenOCD (flash, halt/step, memory/registers, breakpoints, variables and peripheral
Openocd is free: there is no plan to choose, no cap to set and nothing that can bill you.
Publishernot claimed
MIAll 1 server
microhenrio1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Openocd as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. It is scanned, signed and pinned to the version you choose — read the surface before you approve it.
Claude Codedeclared by this listing
This is a public server: you run it yourself and this marketplace is not in the path. It is published at https://github.com/microhenrio/openocd-mcp.
# see the README at https://github.com/microhenrio/openocd-mcp — this one is built and started in its own way, and inventing a one-liner here would be a command that does not runReconnect, or start a new session, and the tools appear in the model’s tool list.
Free to install, and it runs from its publisher’s own package: no account, no key, no card.
What it asks of you
Nothing is required, but it can take OPENOCD_BIN, OPENOCD_MCP_CONFIG, OPENOCD_MCP_READONLY if you want to set them.
What it writes
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
What you approve
39 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Start OpenOCD and connect to the target.
Takes no parameters.
Example callreturns →
Halt the CPU.
Takes no parameters.
Example callreturns →
Resume CPU execution.
Takes no parameters.
Example callreturns →
Reset the target.
Takes no parameters.
Example callreturns →
Single-step the CPU.
Takes no parameters.
Example callreturns →
Return CPU status and program counter.
Takes no parameters.
Example callreturns →
Start the OpenOCD process without connecting.
Takes no parameters.
Example callreturns →
Stop the OpenOCD process.
Takes no parameters.
Example callreturns →
Flash a firmware ELF/BIN/HEX file.
Takes no parameters.
Example callreturns →
Show flash bank information.
Takes no parameters.
Example callreturns →
Erase a flash sector (requires allow_flash_erase permission).
Takes no parameters.
Example callreturns →
Load an ELF file for symbol and DWARF type resolution.
Takes no parameters.
Example callreturns →
Read a variable by name from the ELF symbol table.
Takes no parameters.
Example callreturns →
Write a variable by name.
Takes no parameters.
Example callreturns →
List all variables found in the ELF symbol table.
Takes no parameters.
Example callreturns →
Sample one or more variables repeatedly without halting the CPU, returning a text table. For an auto-refreshing GUI window instead, use the separate 'openocd-watch' console script — it is not reachable as an MCP tool call, but an assistant with its own shell access may launch it as a background process; otherwise tell the user to run it themselves.
Takes no parameters.
Example callreturns →
Read raw memory at an address.
Takes no parameters.
Example callreturns →
Write a value to a memory address.
Takes no parameters.
Example callreturns →
Read all CPU registers.
Takes no parameters.
Example callreturns →
Read a single CPU register.
Takes no parameters.
Example callreturns →
Write a CPU register.
Takes no parameters.
Example callreturns →
Load a CMSIS-SVD file for peripheral register resolution.
Takes no parameters.
Example callreturns →
Read all registers of a peripheral and decode their bitfields.
Takes no parameters.
Example callreturns →
Read a peripheral register by name (e.g. GPIOA.MODER).
Takes no parameters.
Example callreturns →
Write a peripheral register by name.
Takes no parameters.
Example callreturns →
List all registers of a peripheral.
Takes no parameters.
Example callreturns →
Set a hardware or software breakpoint at an address.
Takes no parameters.
Example callreturns →
Remove a breakpoint.
Takes no parameters.
Example callreturns →
Set a breakpoint that halts only when a TCL condition is true.
Takes no parameters.
Example callreturns →
Remove a conditional breakpoint.
Takes no parameters.
Example callreturns →
List all active breakpoints.
Takes no parameters.
Example callreturns →
Remove all breakpoints.
Takes no parameters.
Example callreturns →
Set a hardware watchpoint that halts on read/write/access to an address.
Takes no parameters.
Example callreturns →
Remove a watchpoint.
Takes no parameters.
Example callreturns →
Set session configuration (interface, target, ELF, SVD, transport).
Takes no parameters.
Example callreturns →
Show active configuration and permissions.
Takes no parameters.
Example callreturns →
Set safety permissions (read_only, allow_flash, allow_memory_write, etc.).
Takes no parameters.
Example callreturns →
Download and cache the OpenOCD binary for the current platform.
Takes no parameters.
Example callreturns →
Run a raw OpenOCD TCL command (requires allow_raw_command permission).
Takes no parameters.
Example callreturns →
Freeyour plan
$0 forever
- Every tool, no call limit
- No card, no account needed
- Source published under a licence you can read
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because nothing bills
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable. Openocd costs nothing to install and nothing to call, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: $8.42
$16.58 left
BTrust score 89 / 100
Release 0.4.5 · scanned 26 Aug 2026
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Threat score100
Client score89
Findings2 threat · 2 capability
Capabilitycritical
Coveragesource
Verificationrepo
Surface digest32b753d05c6f10b94eb3dc1c38640701aec22411351a9b6bb957a3b44b5c3226
Score vectorthreat 100 → client 89
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | critical | capability blast radius (critical) — client exposure if the model is manipulated | −10 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tool surfaceread
Implementation sourceread
Package metadataread
Live transportnot available
Tools were statically extracted from the published source (39 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. critical is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| configure | no tags | |
| show_config | no tags | |
| set_permissions | no tags | |
| install_openocd | untrusted-input | |
| start_openocd | no tags | |
| stop_openocd | no tags | |
| status | no tags | |
| connect | no tags | |
| halt | no tags | |
| resume | no tags | |
| reset | no tags | |
| step | no tags | |
| read_registers | sensitive-source | |
| read_register | no tags | |
| write_register | no tags | |
| read_memory | no tags | |
| write_memory | no tags | |
| read_peripheral | no tags | |
| add_breakpoint | no tags | |
| remove_breakpoint | no tags | |
| add_watchpoint | no tags | |
| remove_watchpoint | no tags | |
| list_breakpoints | no tags | |
| remove_all_breakpoints | no tags | |
| add_conditional_breakpoint | no tags | |
| remove_conditional_breakpoint | no tags | |
| flash_write | no tags | |
| flash_info | no tags | |
| flash_erase_sector | no tags | |
| load_elf | no tags | |
| read_variable | no tags | |
| write_variable | no tags | |
| list_variables | no tags | |
| watch_variables | no tags | |
| load_svd | no tags | |
| read_peripheral_register | no tags | |
| write_peripheral_register | no tags | |
| list_peripheral_registers | no tags | |
| run_command | code-exec |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
A cross-tool exfiltration chain exists: install_openocd → read_registers → run_command.
Supply chain and provenance
Integrityfirst-seen
Surface digest32b753d05c6f10b9
Scanned2026-08-26
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Pinned to 0.4.5 — the install command below asks for that release. A pin is part of an install, so it is kept for this visit and written down when you install.
0.4.5
undated
installedNo release note was published with this version.
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no reviews yet
Reviews are earned
Only accounts with at least 50 real tool calls against this server in the last 90 days can post. Ratings are weighted by how much the reviewer actually uses it, and publishers can reply once per review.
Reviews are earned
Writing one takes an account with at least 50 real tool calls against Openocd in the last 90 days. That is the whole gate — there is no other way to post, which is why the counts beside each review are worth reading.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes an account with 50 real tool calls against it.