Exhibit 99.1

CUSIP NO. 68269G 10 7 13 G

AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of Common Stock of 1LIFE HEALTHCARE, INC.

Dated: February 12, 2021

dag ventures iv-qp, l.p.
BY:	DAG VENTURES MANAGEMENT IV, LLC
ITS:	GENERAL PARTNER
By:	/s/ R. Thomas Goodrich
	R. Thomas Goodrich
	Managing Director
dag ventures iv-A, LLC
BY:	DAG VENTURES MANAGEMENT IV, LLC
ITS:	MANAGER
By:	/s/ R. Thomas Goodrich
	R. Thomas Goodrich
	Managing Director
dag ventures iv, l.p.
BY:	DAG VENTURES MANAGEMENT IV, LLC
ITS:	GENERAL PARTNER
By:	/s/ R. Thomas Goodrich
	R. Thomas Goodrich
	Managing Director

DAG VENTURES MANAGEMENT IV, LLC

/s/ R. Thomas Goodrich

R. Thomas Goodrich

Managing Director

/s/ R. Thomas Goodrich

R. Thomas Goodrich

/s/ John J. Cadeddu

John J. Cadeddu