diff --git a/docs/_sidebar.md b/docs/_sidebar.md
index b95b70e..e02080e 100644
--- a/docs/_sidebar.md
+++ b/docs/_sidebar.md
@@ -3,15 +3,15 @@
   - [Configuration](configuration.md)
 
 - Reference
-  - API
+  - [API](api.md)
   - [Service provider data object](serviceproviderdataobject.md)
 
 - Concepts
   - [DOIP](doip.md)
-  - [Cryptographic keys](#)
-  - [Proofs](#)
-  - [Claims](#)
-  - [Service providers](#)
+  - [Cryptographic keys](cryptographickeys.md)
+  - [Proofs](proofs.md)
+  - [Claims](claims.nd)
+  - [Service providers](serviceproviders,md)
 
 - Service providers
   - [Liberapay](serviceproviders/liberapay.md)
diff --git a/docs/api.md b/docs/api.md
new file mode 100644
index 0000000..fc7d158
--- /dev/null
+++ b/docs/api.md
@@ -0,0 +1,25 @@
+# API
+
+## verify
+
+*(async)* doip.verify(uri, [fingerprint], [opts])
+
+Verifies the identity behind the provided **uri** using the **fingerprint**.
+
+**Parameters**
+
+| Name        | Mandatory | Type   | Description                      |
+|-------------|-----------|--------|----------------------------------|
+| uri         | true      | string | the URI to an identity to verify |
+| fingerprint | false     | string | the fingerprint of the claim     |
+| opts        | false     | object | options (see below)              |
+
+**Options**
+
+| Name        | Default   | Type   | Description                      |
+|-------------|-----------|--------|----------------------------------|
+| uri         | true      | string | the URI to an identity to verify |
+| fingerprint | false     | string | the fingerprint of the claim     |
+| opts        | false     | object | options                          |
+
+**Returns**
diff --git a/docs/claims.md b/docs/claims.md
new file mode 100644
index 0000000..34f417c
--- /dev/null
+++ b/docs/claims.md
@@ -0,0 +1 @@
+# Claims
diff --git a/docs/configuration.md b/docs/configuration.md
new file mode 100644
index 0000000..a025a48
--- /dev/null
+++ b/docs/configuration.md
@@ -0,0 +1 @@
+# Configuration
diff --git a/docs/cryptographickeys.md b/docs/cryptographickeys.md
new file mode 100644
index 0000000..dfa4eaf
--- /dev/null
+++ b/docs/cryptographickeys.md
@@ -0,0 +1 @@
+# Cryptographic keys
diff --git a/docs/proofs.md b/docs/proofs.md
new file mode 100644
index 0000000..5c4267d
--- /dev/null
+++ b/docs/proofs.md
@@ -0,0 +1 @@
+# Proofs
diff --git a/docs/serviceproviders.md b/docs/serviceproviders.md
new file mode 100644
index 0000000..a66ad50
--- /dev/null
+++ b/docs/serviceproviders.md
@@ -0,0 +1 @@
+# Service providers