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UDS Toolbox

com.udslib/uds-toolbox · v1.1.0

Measured by MCP Station

Description written by the publisher, not verified

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

Connect

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

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

Tools as reported by the server

• analyze_trace
  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
• decode_uds
  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.
• build_uds_request
  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_isotp
  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_dtc
  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.
• uds_reference
  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
  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.

Repository · Website · JSON · Text for agents · Registry updated 2026-10-04