Exhibit 10.21

                        FIRST LOAN MODIFICATION AGREEMENT


         This First Loan Modification Agreement is entered into as of
August 16, 1998, by and between BLUESTONE SOFTWARE, INC., a Delaware
corporation with its principal place of business at 1000 Briggs Road, Mount
Laurel, New Jersey 08054-4101 ("Borrower") and SILICON VALLEY BANK, a
California-chartered bank ("Bank"), with its principal place of business at 3003
Tasman Drive, Santa Clara, CA 95054 and with a loan production office located at
Wellesley Office Park, 40 William Street, Suite 350, Wellesley, MA 02481, doing
business under the name "Silicon Valley East".

1. DESCRIPTION OF EXISTING INDEBTEDNESS. Among other indebtedness which may be
owing by Borrower to Bank, Borrower is indebted to Bank pursuant to a loan
arrangement dated as of December 8, 1997, evidenced by, among other documents, a
certain Loan and Security Agreement dated as of December 8, 1997 (the "Loan
Agreement"). The Loan Agreement established in favor of the Borrower: (i) a
revolving line of credit in the maximum principal amount of One Million Seven
Hundred Fifty Thousand Dollars ($1,750,000.00) (the "Revolving Line"), and (ii)
an equipment line of credit in the maximum principal amount of Five Hundred
Thousand Dollars ($500,000.00) (the "Equipment Line"). Capitalized terms used
but not otherwise defined herein shall have the same meaning as in the Loan
Agreement.

Hereinafter, all indebtedness owing by Borrower to Bank shall be referred to as
the "Indebtedness".

2. DESCRIPTION OF COLLATERAL AND GUARANTIES. Repayment of the Indebtedness is
secured by the Collateral as described in the Loan Agreement (together with any
other collateral security granted to Bank, the "Security Documents").

Hereinafter, the Security Documents, together with all other documents
evidencing or securing the Indebtedness shall be referred to as the "Existing
Loan Documents".

3. DESCRIPTION OF CHANGE IN TERMS.

         A.       MODIFICATION(S) TO LOAN AGREEMENT.

                  1.       The Loan Agreement shall be amended by deleting the
                           following definition appearing in Section 1.1
                           thereof:

                                    ""Committed Equipment Line" means a credit
                                    extension of up to Five Hundred Thousand
                                    Dollars ($500,000.00)."

                           and inserting in lieu thereof the following:

                                    ""Committed Equipment Line" means a credit
                                    extension of up to Two Million Dollars
                                    ($2,000,000.00). Notwithstanding the
                                    foregoing, the Committed Equipment Line
                                    shall be reduced by the outstanding balance
                                    of Equipment Advances made to Borrower
                                    pursuant to Section 2.1.2 hereof."

                  2.       The Loan Agreement shall be amended by inserting the
                           following new definition after the definition of
                           "Credit Extension" appearing in Section 1.1 thereof:

                                    ""Current Liabilities" means, as of any
                                    applicable date, all amounts that should, in
                                    accordance with GAAP, be included as current
                                    liabilities on the consolidated balance
                                    sheet of Borrower and its Subsidiaries, as
                                    at such






                                    date, plus, to the extent not already
                                    included therein, all outstanding Credit
                                    Extensions made under this Agreement,
                                    including all Indebtedness that is payable
                                    upon demand or within one year from the date
                                    of determination thereof unless such
                                    Indebtedness is renewable or extendable at
                                    the option of Borrower or any Subsidiary to
                                    a date more than one year from the date of
                                    determination, but excluding Subordinated
                                    Debt, and excluding deferred revenues."

                  3.       The Loan Agreement shall be amended by deleting the
                           following definition appearing in Section 1.1
                           thereof:

                                    ""Maturity Date" means the later of the
                                    Equipment Maturity Date or the Revolving
                                    Maturity Date."

                           and inserting in lieu thereof the following:

                                    ""Maturity Date" means the later of the
                                    Second Equipment Maturity Date or the
                                    Revolving Maturity Date."

                  4.       The Loan Agreement shall be amended by inserting the
                           following new definition after the definition of
                           "Prime Rate" appearing in Section 1.1 thereof:

                                    ""Quick Assets" means, as of any applicable
                                    date, the consolidated cash, cash
                                    equivalents, accounts receivable and
                                    investments with maturities of fewer than 90
                                    days of Borrower determined in accordance
                                    with GAAP."

                  5.       No further Equipment Advances shall be made under
                           Section 2.1.2.

                  6.       The Loan Agreement shall be amended by inserting
                           after Section 2.1.2 thereof entitled "Equipment
                           Advances" the following new section:

                                    "2.1.2.A.    1998-1999 EQUIPMENT ADVANCES.

                           (a) Subject to and upon the terms and conditions of
                           this Agreement, at any time through March 31, 1999
                           (the "Second Equipment Availability End Date"), Bank
                           agrees to make Equipment Advances under this Section
                           2.1.2.A to Borrower in an aggregate outstanding
                           amount not to exceed the Committed Equipment Line. To
                           evidence the Equipment Advance or Equipment Advances,
                           Borrower shall deliver to Bank, at the time of each
                           Equipment Advance request, an invoice for the
                           equipment to be purchased. The Equipment Advances
                           shall be used only to purchase Equipment or refinance
                           Equipment purchased after January 1, 1998 and shall
                           not exceed One Hundred Percent (100%) of the invoice
                           amount of such equipment approved from time to time
                           by Bank, excluding taxes, shipping, warranty charges,
                           freight discounts and installation expense. Software
                           may, however, constitute up to twenty-five percent
                           (25.0%) of aggregate Equipment Advances under this
                           Section 2.1.2.A.

                           (b) Interest shall accrue from the date of each
                           Equipment Advance made pursuant to this Section
                           2.1.2.A at a per annum rate equal to One and One
                           Quarter percentage points (1.25%) above the Prime
                           Rate and shall be payable monthly on


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                           the Payment Date of each month through the month in
                           which the Second Equipment Availability End Date
                           falls. Amounts currently amortizing under Section
                           2.1.2 above shall continue to be repaid as provided
                           in Section 2.1.2 above, and shall be treated as
                           existing Equipment Advances under the Committed
                           Equipment Line. Any Equipment Advances made pursuant
                           to this Section 2.1.2.A that are outstanding on the
                           Second Equipment Availability End Date will be
                           payable in thirty-six (36) equal monthly installments
                           of principal, plus all accrued interest, beginning on
                           the Payment Date of each month following the Second
                           Equipment Availability End Date and ending on March
                           31, 2002 (the "Second Equipment Maturity Date").
                           Equipment Advances, once repaid, my not be
                           reborrowed.

                           (c) When Borrower desires to obtain an Equipment
                           Advance, Borrower shall notify Bank (which notice
                           shall be irrevocable) by facsimile transmission to be
                           received no later than 3:00 p.m. Pacific time one (1)
                           Business Day before the day on which the Equipment
                           Advance is to be made. Such notice shall be
                           substantially in the form of Exhibit B. The notice
                           shall be signed by a Responsible Officer or its
                           designee and include a copy of the invoice for the
                           Equipment to be financed."

                  7.       The Loan Agreement shall be amended by deleting the
                           following text appearing as paragraph (a) of Section
                           2.3 entitled "Interest Rates, Payments, and
                           Calculations":

                                    "(a) INTEREST RATE. Except as set forth in
                                    Section 2.3(b), any Advances shall bear
                                    interest, on the average daily balance
                                    thereof, at a per annum rate equal to One
                                    and One Half percentage point (1.50%) above
                                    the Prime Rate."

                           and inserting in lieu thereof the following:

                                    "(a) INTEREST RATE. Except as set forth in
                                    Section 2.3(b), any Advances made pursuant
                                    to Section 2.1.1 shall bear interest, on the
                                    average daily balance thereof, at a per
                                    annum rate equal to Three Quarters of One
                                    percentage point (0.75%) above the Prime
                                    Rate."

                  8.       The Loan Agreement shall be amended by deleting the
                           following text appearing in the first paragraph of
                           Section 6.3 entitled "Financial Statements, Reports,
                           Certificates":

                                    "(b) as soon as available, but in any event
                                    within ninety (90) days after the end of
                                    Borrower's fiscal year, audited consolidated
                                    financial statements of Borrower prepared in
                                    accordance with GAAP, consistently applied,
                                    together with an unqualified opinion on such
                                    financial statements of an independent
                                    certified public accounting firm reasonably
                                    acceptable to Bank;"

                           and inserting in lieu thereof the following:

                                    "(b) as soon as available, but in any event
                                    within one hundred twenty (120) days after
                                    the end of Borrower's fiscal year, audited
                                    consolidated financial statements of
                                    Borrower prepared in accordance with GAAP,
                                    consistently applied, together with an
                                    unqualified opinion on such financial
                                    statements


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                                    of an independent certified public
                                    accounting firm reasonably acceptable to
                                    Bank;"

                  9.       The Loan Agreement shall be amended by deleting the
                           following text appearing as Sections 6.8 and 6.9
                           thereof:

                                    "6.8 TANGIBLE NET WORTH. Borrower shall
                                    maintain, as of the last day of each
                                    calendar month, a Tangible Net Worth of not
                                    less than One Million Dollars
                                    ($1,000,000.00); provided however, the
                                    Borrower shall evidence a Tangible Net Worth
                                    of not less than One Million Five Hundred
                                    Thousand Dollars ($1,500,000.00) for the
                                    third quarter of fiscal year ending 1997.

                                    "6.9 LIQUID ASSETS. Borrower shall maintain,
                                    as of the last day of each calendar month,
                                    Liquid Assets of not less than One Million
                                    Dollars ($1,000,000.00)."

                           and inserting in lieu thereof the following:

                                    ""6.8 TANGIBLE NET WORTH. Borrower shall
                                    maintain, as of the last day of each
                                    calendar month, a Tangible Net Worth of not
                                    less than Three Million Dollars
                                    ($3,000,000.00). For purposes hereof,
                                    Tangible Net Worth shall be defined as
                                    Borrower's equity plus Subordinated Debt
                                    less intangible assets.

                                    6.9 ADJUSTED QUICK RATIO. Borrower shall
                                    maintain, as of the last day of each
                                    calendar month, a ratio of Quick Assets to
                                    Current Liabilities of at least 1.25 to
                                    1.0."

                  10.      The Compliance Certificate appearing as EXHIBIT D to
                           the Loan Agreement is hereby replaced with the
                           Compliance Certificate attached as EXHIBIT A hereto.

4. FEE. Borrower shall pay to Bank a modification fee equal to Three Thousand
Seven Hundred Fifty Dollars ($3,750.00), which fee shall be due on the date
hereof and which shall be deemed fully earned as of the date hereof. The
Borrower shall also reimburse Lender for legal fees and expenses incurred in
connection with this amendment to the Loan Documents.

5. CONSISTENT CHANGES. The Existing Loan Documents are hereby amended wherever
necessary to reflect the changes described above.

6. RATIFICATION OF LOAN DOCUMENTS. Borrower hereby ratifies, confirms, and
reaffirms all terms and conditions of all security or other collateral granted
to the Bank, and confirms that the indebtedness secured thereby includes,
without limitation, the Indebtedness.

7. NO DEFENSES OF BORROWER. Borrower agrees that, as of this date, it has no
defenses against the obligations to pay any amounts under the Indebtedness.

8. CONTINUING VALIDITY. Borrower understands and agrees that in modifying the
existing Indebtedness, Bank is relying upon Borrower's representations,
warranties, and agreements, as set forth in the Existing Loan Documents. Except
as expressly modified pursuant to this Loan Modification Agreement, the terms of
the Existing Loan Documents remain unchanged and in full force and effect.


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Bank's agreement to modifications to the existing Indebtedness pursuant to this
Loan Modification Agreement in no way shall obligate Bank to make any future
modifications to the Indebtedness. Nothing in this Loan Modification Agreement
shall constitute a satisfaction of the Indebtedness. It is the intention of Bank
and Borrower to retain as liable parties all makers and endorsers of Existing
Loan Documents, unless the party is expressly released by Bank in writing. No
maker, endorser, or guarantor will be released by virtue of this Loan
Modification Agreement.

9. JURISDICTION/VENUE. Borrower accepts for itself and in connection with its
properties, unconditionally, the non-exclusive jurisdiction of any state or
federal court of competent jurisdiction in the Commonwealth of Massachusetts in
any action, suit, or proceeding of any kind against it which arises out of or by
reason of this Loan Modification Agreement; provided, however, that if for any
reason Bank cannot avail itself of the courts of the Commonwealth of
Massachusetts, then venue shall lie in Santa Clara County, California.

10. COUNTERSIGNATURE. This Loan Modification Agreement shall become effective
only when it shall have been executed by Borrower and Bank (provided, however,
in no event shall this Loan Modification Agreement become effective until signed
by an officer of Bank in California).

         This Loan Modification Agreement is executed as of the date first
written above.

BORROWER:                                 BANK:

BLUESTONE SOFTWARE, INC.                  SILICON VALLEY BANK, doing business as
                                          SILICON VALLEY EAST


By:/s/ E. J. Ballezzi                     By:/s/ Pamela Aldsworth
   -------------------------------           -------------------------------

Name: E. J. Ballezzi                      Name: Pamela Aldsworth
     -----------------------------             -----------------------------

Title: Chief Financial Officer            Title: Vice President
      ----------------------------              ----------------------------



                                          SILICON VALLEY BANK

                                          By:/s/ Michelle D. Giannini
                                             ------------------------------

                                          Name: Michelle D. Giannini
                                               ----------------------------

                                          Title: Assistant Vice President
                                                ---------------------------
                                             (signed in Santa Clara County,
                                             California)



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