MCP server

UDS Toolbox

com.udslib/uds-toolbox

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Find why a UDS flash failed from a CAN trace; decode UDS, ISO-TP and DTCs. No hardware.

Website Source

At a glance

Type

MCP server

Publisher

udslib.com (verified by the MCP Registry)

Status

Working at last check

Tools

7

Token cost

About 1,965 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http uds-toolbox https://mcp.udslib.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.uds-toolbox]
url = "https://mcp.udslib.com/mcp"

Gemini CLI

{"mcpServers":{"uds-toolbox":{"httpUrl":"https://mcp.udslib.com/mcp"}}}

Cursor

{"mcpServers":{"uds-toolbox":{"url":"https://mcp.udslib.com/mcp"}}}

VS Code

{"servers":{"uds-toolbox":{"type":"http","url":"https://mcp.udslib.com/mcp"}}}

Antigravity

agy mcp add uds-toolbox https://mcp.udslib.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"uds-toolbox","server_url":"https://mcp.udslib.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"uds-toolbox","server_url":"https://mcp.udslib.com/mcp"}

Tools

• analyze_trace ~346 tokens
  Analyze a whole CAN trace of a UDS diagnostic or flash session and say what went wrong. Accepts candump logs, Vector ASC, PEAK TRC (1.x/2.x), SavvyCAN or python-can CSV pasted as text, and those plus Vector BLF, Wireshark pcap/pcapng (SocketCAN) and ASAM MF4 bus logging uploaded as a file. Reassembl
• build_uds_request ~662 tokens
  Build a UDS request as hex with an annotated breakdown. Services: session, ecu_reset, read_did, write_did, security_seed, security_key, tester_present, routine, request_download, transfer_data, transfer_exit, clear_dtc, read_dtc, control_dtc, comm_control, raw. Numeric strings are hex.
• decode_dtc ~140 tokens
  Convert a 3-byte UDS DTC to the SAE J2012 style code (P/C/B/U + digits) plus failure type byte, or the reverse ("U0073-00" to hex). With a status byte, explains each of the 8 DTC status bits.
• decode_isotp ~288 tokens
  Reassemble ISO-TP (ISO 15765-2) messages from CAN frames, per CAN id, and decode each as UDS. Reports frame types (SF/FF/CF/FC), flow-control BS/STmin, sequence-number errors, interrupted messages, padding, and N_Bs/N_Cr/STmin timing warnings when timestamps (ms) are given. Accepts a frame list or a
• decode_uds ~172 tokens
  Decode a UDS (ISO 14229-1) PDU from hex: request, positive or negative response. Names the service, sub-function (and suppressPosRsp bit), DID/RID/address fields, and for negative responses the NRC with meaning and typical cause. Unknown SIDs and NRCs are labelled, not rejected.
• uds_reference ~119 tokens
  Short UDS reference with ISO 14229-1 clause pointers (paraphrased). Topics: a service ID (0x27) or name, an NRC (0x78 or "nrc 78"), a DID (F190) or RID (FF00), timing (p2, p2*, s3), sessions, security (0x27 vs 0x29), reprogramming_sequence. Unknown topics return a topic list.
• udslib_integration ~238 tokens
  Plan how to integrate the UDSLib C stack (ISO 14229 UDS server/client for embedded ECUs): which repo files to take, Kconfig/config hints, an init skeleton, the closest example, and the license terms (free noncommercial / commercial). UDSLib speaks ISO-TP over CAN/CAN-FD; DoIP is not supported.

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