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07.md

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+NIP-07
+======
+
+`window.nostr` capability for web browsers
+------------------------------------------
+
+`draft` `optional`
+
+The `window.nostr` object may be made available by web browsers or extensions and websites or web-apps may make use of it after checking its availability.
+
+That object must define the following methods:
+
+```
+async window.nostr.getPublicKey(): string // returns a public key as hex
+async window.nostr.signEvent(event: { created_at: number, kind: number, tags: string[][], content: string }): Event // takes an event object, adds `id`, `pubkey` and `sig` and returns it
+```
+
+Aside from these two basic above, the following functions can also be implemented optionally:
+```
+async window.nostr.nip04.encrypt(pubkey, plaintext): string // returns ciphertext and iv as specified in nip-04 (deprecated)
+async window.nostr.nip04.decrypt(pubkey, ciphertext): string // takes ciphertext and iv as specified in nip-04 (deprecated)
+async window.nostr.nip44.encrypt(pubkey, plaintext): string // returns ciphertext as specified in nip-44
+async window.nostr.nip44.decrypt(pubkey, ciphertext): string // takes ciphertext as specified in nip-44
+```
+
+### Recommendation to Extension Authors
+To make sure that the `window.nostr` is available to nostr clients on page load, the authors who create Chromium and Firefox extensions should load their scripts by specifying `"run_at": "document_end"` in the extension's manifest.
+
+
+### Implementation
+
+See https://github.com/aljazceru/awesome-nostr#nip-07-browser-extensions.