Yes, but what's not there is what nullifies it. It only takes a little false teaching mixed in with Truth to render it useless.
There is no “Sinner’s Prayer”
"But the tax collector, standing some distance away, was even unwilling to lift up his eyes to heaven, but was beating his breast, saying, 'God, be merciful to me, the sinner!' Luke 18:13 NASB
Sure sounds like a sinner's prayer to me.
or Altar Call, however.
37Now when they heard this, they were pierced to the heart, and said to Peter and the rest of the apostles, “Brethren, what shall we do?” 38Peter said to them, “Repent, and each of you be baptized in the name of Jesus Christ for the forgiveness of your sins; and you will receive the gift of the Holy Spirit. 39“For the promise is for you and your children and for all who are far off, as many as the Lord our God will call to Himself.” 40And with many other words he solemnly testified and kept on exhorting them, saying, “Be saved from this perverse generation!” 41So then, those who had received his word were baptized; and that day there were added about three thousand souls. 42They were continually devoting themselves to the apostles’ teaching and to fellowship, to the breaking of bread and to prayer. Acts 2:37-42 NASB
Sure sounds like an altar call.
“Yes, but what’s not there is what nullifies it.”
No, actually nothing nullifies it.
“It only takes a little false teaching mixed in with Truth to render it useless.”
Hence, Protestantism is useless then - according to your logic.
“Sure sounds like a sinner’s prayer to me.”
I don’t think even you believe it does. I put it quotes for a reason, and it would be disingenuous for anyone t pretend those quote marks were not there.
https://en.wikipedia.org/wiki/Sinner%27s_prayer
“Sure sounds like an altar call.”
But it wasn’t and isn’t. https://en.wikipedia.org/wiki/Altar_call