Newcastle claimed the point needed to secure a top-four Premier League finish with a goalless draw against relegation-threated Leicester, whose fate is now out of their own hands.
Eddie Howe's side failed to break the deadlock in a match they dominated, striking the post three times, but the result was sufficient for the Magpies to make a return to the Champions League next season.
Newcastle's are four points clear of fifth-placed Liverpool heading into Sunday's final day of the season, while Leicester remain in the relegation zone, two points adrift of safety.
The hosts had 81% possession during the contest and initially found it difficult to make inroads, but Callum Wilson hooked an effort against the post and saw his follow-up effort headed off the line by Wilfred Ndidi.