<PAGE> 1
EXHIBIT 99.8
CONSENT OF THOMAS WEISEL PARTNERS, LLC
We hereby consent to the inclusion of our opinion letter dated May 20, 2000
to the Board of Directors of Active Software, Inc. ("Active Software") as
Appendix D to the Joint Proxy Statement/Prospectus which forms a part of the
Registration Statement on Form S-4 relating to the proposed merger of Active
Software and webMethods, Inc. ("webMethods") and to the references to such
opinion in the Joint Proxy Statement/Prospectus under the captions "Summary -
Opinions of financial advisors," "The Merger - Background of the merger," "The
Merger - Active Software's reasons for the merger," and "The Merger - Opinion of
Active Software's Financial Advisors." By giving such consent we do not thereby
admit that we are experts with respect to any part of such Registration
Statement within the meaning of the term "expert" as used in, or that we come
within the category of persons whose consent is required under, the Securities
Act of 1933, as amended, or the rules and regulations of the Securities and
Exchange Commission promulgated thereunder.
THOMAS WEISEL PARTNERS, LLC
By: /s/ LISA M. WESTLEY
----------------------------
Name: Lisa Westley
Title: Partner
June 15, 2000
