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                                                                    EXHIBIT 10.1

SILICON VALLEY BANK

                          AMENDMENT TO LOAN DOCUMENTS

BORROWER: ONYX SOFTWARE CORPORATION

DATE: MARCH 30, 2005

      THIS AMENDMENT TO LOAN DOCUMENTS is entered into between Silicon Valley
Bank ("Silicon") and the borrower named above ("Borrower").

      The Parties agree to amend the Loan and Security Agreement between them,
dated February 14, 2002 (as otherwise amended, if at all, the "Loan Agreement"),
as follows, effective as of the date hereof. (Capitalized terms used but not
defined in this Amendment shall have the meanings set forth in the Loan
Agreement.)

      1. MODIFIED CREDIT LIMIT. Section 1 of the Schedule to Loan and Security
Agreement, entitled "Credit Limit," is hereby amended to read as follows:

            1. CREDIT LIMIT
               (Section 1.1): An amount equal to the sum of 1 and 2 below:

                              1. Revolving Loans. An amount (the "Revolving
                              Loans") not to exceed the lesser of: (i)
                              $6,000,000 at any one time outstanding (the
                              "Maximum Credit Limit"); or (ii) 70% (an "Advance
                              Rate") of the amount of Borrower's Eligible
                              Receivables (as defined in Section 8 above).

                              Silicon may, from time to time, modify the Advance
                              Rates, in its good faith business judgment, upon
                              notice to the Borrower, based on changes in
                              collection experience with respect to Receivables
                              or other issues or factors relating to the
                              Receivables or other Collateral.

                              Notwithstanding the foregoing, the total
                              outstanding Obligations under the Revolving Loans
                              and under the Exim Agreement (as defined below)
                              shall not at any time exceed $8,000,000 (inclusive
                              of any issued Letters of Credit).

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              plus

                              2. Term Loan. An amount equal to the unpaid
                              principal balance from time to time outstanding of
                              the Loan ("Term Loan") previously made by Silicon,
                              the current principal balance of which is
                              $347,200. The Term Loan shall be used to refinance
                              the Borrower's Cisco Voice Over IP Network. Any
                              portion of the Term Loan, once repaid, cannot be
                              reborrowed.

                              Notwithstanding the foregoing, an amount equal to
                              fifty percent (50%) of the Obligations relating to
                              the Term Loan shall be reserved against the
                              Revolving Loans which would otherwise be available
                              to Borrower as set forth above.

                              As used in this Agreement, the word "Loans"
                              includes the Revolving Loans and the Term Loan.

            LETTER OF CREDIT
            SUBLIMIT
            (Section 1.5):    $6,000,000.

            EXIM AGREEMENT;
            CROSS-COLLATERALIZATION;
            CROSS-DEFAULT:    Silicon and the Borrower are parties to that
                              certain Loan and Security Agreement (Exim Program)
                              dated approximately May 5, 2003 (as amended from
                              time to time, the "Exim Agreement"). Both this
                              Agreement and the Exim Agreement shall continue in
                              full force and effect, and all rights and remedies
                              under this Agreement and the Exim Agreement are
                              cumulative. The term "Obligations" as used in this
                              Agreement and in the Exim Agreement shall include
                              without limitation the obligation to pay when due
                              all Loans made pursuant to this Agreement (the
                              "Non-Exim Loans") and all interest thereon and the
                              obligation to pay when due all Loans made pursuant
                              to the Exim Agreement (the "Exim Loans") and all
                              interest thereon. Without limiting the generality
                              of the foregoing, all "Collateral" as defined in
                              this Agreement and as defined in the Exim
                              Agreement shall secure all Exim Loans and all
                              Non-Exim Loans and all interest thereon, and all
                              other Obligations. Any Event of Default under

                                      -2-

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              this Agreement shall also constitute an Event of
                              Default under the Exim Agreement, and any Event of
                              Default under the Exim Agreement shall also
                              constitute an Event of Default under this
                              Agreement. In the event Silicon assigns its rights
                              under the Exim Agreement and/or under any Note
                              evidencing Exim Loans and/or its rights under this
                              Agreement and/or under any Note evidencing
                              Non-Exim Loans, to any third party, including
                              without limitation the Export-Import Bank of the
                              United States ("Exim Bank"), whether before or
                              after the occurrence of any Event of Default,
                              Silicon shall have the right (but not any
                              obligation), in its sole discretion, to allocate
                              and apportion Collateral to the Agreement and/or
                              Note assigned and to specify the priorities of the
                              respective security interests in such Collateral
                              between itself and the assignee, all without
                              notice to or consent of the Borrower.

      2. MODIFIED COLLATERAL MONITORING FEE. The Collateral Monitoring Fee set
forth in Section 3 of the Schedule to Loan and Security Agreement is hereby
amended to read as follows:

            Collateral
            Monitoring Fee:   $1,000 per month, payable in arrears (prorated for
                              any partial month at the beginning and at
                              termination of this Agreement); provided, however
                              such fee will be $0.00 while that certain
                              Streamline Facility Agreement dated March 30, 2005
                              is in effect.

      3. MODIFIED MATURITY DATE. The Maturity Date set forth in Section 4 of the
Schedule to Loan and Security Agreement is hereby amended to read as follows:

            4. MATURITY DATE
            (Section 6.1):    MARCH 29, 2006.

                              Notwithstanding the foregoing, with respect to the
                              Term Loan: The outstanding principal balance of
                              the Term Loan shall continue to be repaid by
                              Borrower to Silicon in thirty-six (36) equal
                              monthly payments of principal, having commenced on
                              May 1, 2004 and continuing on the first day of
                              each subsequent month until the earlier of the
                              following dates: (i) April 1, 2007, or (ii) the
                              date the Term Loan has been indefeasibly paid in
                              full, or (iii) the date the Revolving Loans are
                              terminated, or (iv) the date this Agreement
                              terminates by its terms or is terminated by either
                              party in accordance with its

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              terms. On the earlier to occur of the foregoing
                              dates, the entire unpaid principal balance of the
                              Term Loan, plus all accrued and unpaid interest
                              thereon, shall be due and payable. Interest on the
                              Term Loan shall be payable monthly as provided in
                              Section 1.2 of this Agreement.

      4. MODIFIED FINANCIAL COVENANTS. Section 5 of the Schedule to Loan and
Security Agreement, entitled "5. FINANCIAL COVENANTS (Section 5.1)," is hereby
amended to read as follows:

            5. FINANCIAL COVENANTS
            (Section 5.1):    Borrower shall comply with each of the following
                              financial covenant(s). Compliance shall be
                              determined as of the end of each month, except as
                              otherwise specifically provided below:

            ADJUSTED QUICK
            RATIO:            Borrower shall maintain an Adjusted Quick Ratio of
                              not less than 1.50 TO 1.00.

            MINIMUM TANGIBLE
            NET WORTH:        Borrower shall, on a consolidated basis, maintain
                              a Tangible Net Worth of not less than the
                              following:

                              For the month ending March 31, 2005: $600,000 plus
                              an amount equal to (i) 50% of all consideration
                              received after March 1, 2005 for equity securities
                              and subordinated debt of the Borrower, plus (ii)
                              50% of the Borrower's net income in each fiscal
                              quarter ending after March 1, 2005;

                              For each of the months ending April 30, 2005 and
                              May 31, 2005: <$2,000,000> plus an amount equal to
                              (i) 50% of all consideration received after March
                              1, 2005 for equity securities and subordinated
                              debt of the Borrower, plus (ii) 50% of the
                              Borrower's net income in each fiscal quarter
                              ending after March 1, 2005;

                              For the month ending June 30, 2005: $600,000 plus
                              an amount equal to (i) 50% of all consideration
                              received after March 1, 2005 for equity securities
                              and subordinated debt of the Borrower, plus (ii)
                              50% of the Borrower's net

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              income in each fiscal quarter ending after March
                              1, 2005;

                              For each of the months ending July 31, 2005 and
                              August 31, 2005: <$2,000,000> plus an amount equal
                              to (i) 50% of all consideration received after
                              March 1, 2005 for equity securities and
                              subordinated debt of the Borrower, plus (ii) 50%
                              of the Borrower's net income in each fiscal
                              quarter ending after March 1, 2005;

                              For the month ending September 30, 2005: $600,000
                              plus an amount equal to (i) 50% of all
                              consideration received after March 1, 2005 for
                              equity securities and subordinated debt of the
                              Borrower, plus (ii) 50% of the Borrower's net
                              income in each fiscal quarter ending after March
                              1, 2005;

                              For each of the months ending October 31, 2005 and
                              November 30, 2005: <$2,000,000> plus an amount
                              equal to (i) 50% of all consideration received
                              after March 1, 2005 for equity securities and
                              subordinated debt of the Borrower, plus (ii) 50%
                              of the Borrower's net income in each fiscal
                              quarter ending after March 1, 2005;

                              For the month ending December 31, 2005: $600,000
                              plus an amount equal to (i) 50% of all
                              consideration received after March 1, 2005 for
                              equity securities and subordinated debt of the
                              Borrower, plus (ii) 50% of the Borrower's net
                              income in each fiscal quarter ending after March
                              1, 2005;

                              For each of the months ending January 31, 2006 and
                              February 28, 2006: <$2,000,000> plus an amount
                              equal to (i) 50% of all consideration received
                              after March 1, 2005 for equity securities and
                              subordinated debt of the Borrower, plus (ii) 50%
                              of the Borrower's net income in each fiscal
                              quarter ending after March 1, 2005; and

                              For the month ending March 31, 2006: $600,000 plus
                              an amount equal to (i) 50% of all consideration
                              received after March 1, 2005 for equity securities
                              and subordinated debt of the

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              Borrower, plus (ii) 50% of the Borrower's net
                              income in each fiscal quarter ending after March
                              1, 2005.

                              Increases in the Minimum Tangible Net Worth
                              Covenant based on consideration received for
                              equity securities and subordinated debt of the
                              Borrower shall be effective as of the end of the
                              month in which such consideration is received, and
                              shall continue effective thereafter. Increases in
                              the Minimum Tangible Net Worth Covenant based on
                              net income shall be effective on the last day of
                              the fiscal quarter in which said net income is
                              realized, and shall continue effective thereafter.
                              In no event shall the Minimum Tangible Net Worth
                              Covenant be decreased.

            DEFINITIONS.      For purposes of the foregoing financial covenants,
                              the following term shall have the following
                              meaning:

                              "< >" shall mean a negative figure or loss, as
                              applicable.

                              "Current assets", "current liabilities" and
                              "liabilities" shall have the meaning ascribed
                              thereto by generally accepted accounting
                              principles.

                              "Adjusted Quick Ratio" shall mean, as of any
                              applicable date, the ratio of (i) consolidated
                              cash, cash equivalents and Receivables of Borrower
                              determined in accordance with generally accepted
                              accounting principles, consistently applied, to
                              (ii) Borrower's current liabilities plus the face
                              amount of all outstanding Letters of Credit
                              reserved against the Loans less Borrower's
                              deferred revenues less the current portion of
                              Borrower's restructuring accrual and set forth in
                              Borrower's financial statements with respect to
                              excess office space.

                              "Tangible Net Worth" shall mean the excess of
                              total assets over total liabilities, determined in
                              accordance with generally accepted accounting
                              principles, with the following adjustments:

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SILICON VALLEY BANK                                  AMENDMENT TO LOAN AGREEMENT

                              (A) there shall be excluded from assets: (i)
                              notes, accounts receivable and other obligations
                              owing to Borrower from its officers or other
                              Affiliates, and (ii) all assets which would be
                              classified as intangible assets under generally
                              accepted accounting principles, including without
                              limitation goodwill, licenses, patents,
                              trademarks, trade names, copyrights, capitalized
                              software and organizational costs, licenses and
                              franchises

                              (B) there shall be excluded from liabilities: all
                              indebtedness which is subordinated to the
                              Obligations under a subordination agreement in
                              form specified by Silicon or by language in the
                              instrument evidencing the indebtedness which is
                              acceptable to Silicon in its discretion.

      5. FEE. In consideration for Silicon entering into this Amendment,
Borrower shall concurrently pay Silicon a fee in the amount of $30,000, which
shall be non-refundable and in addition to all interest and other fees payable
to Silicon under the Loan Documents. Silicon is authorized to charge said fee to
Borrower's loan account.

      6. REPRESENTATIONS TRUE. Borrower represents and warrants to Silicon that
all representations and warranties set forth in the Loan Agreement, as amended
hereby, are true and correct.

      7. GENERAL PROVISIONS. This Amendment, the Loan Agreement, any prior
written amendments to the Loan Agreement signed by Silicon and Borrower, and the
other written documents and agreements between Silicon and Borrower set forth in
full all of the representations and agreements of the parties with respect to
the subject matter hereof and supersede all prior discussions, representations,
agreements and understandings between the parties with respect to the subject
hereof. Except as herein expressly amended, all of the terms and provisions of
the Loan Agreement, and all other documents and agreements between Silicon and
Borrower shall continue in full force and effect and the same are hereby
ratified and confirmed.

   BORROWER:                                  SILICON:

   ONYX SOFTWARE CORPORATION                  SILICON VALLEY BANK

   BY /s/ JAMES O. BECK                       BY /s/ SHANE ANDERSON
      -------------------------------            -------------------------------
         TREASURER                            TITLE RELATIONSHIP MGR

   BY /s/ PAUL DAUBER
      -------------------------------
         SECRETARY OR ASS'T SECRETARY

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