diff --git a/developers/authentication.md b/developers/authentication.md
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+# Authentication
+
+## XdrToken
+
+The Turret XDR Token is a signed transaction envelope XDR that is signed by the
+account seeking authentication's public key. The signed XDR, or XDR Token, is
+provided as a Authorization Bearer token to the Turret.
+
+### XdrToken Structure
+
+The Xdr Token Transaction is a Stellar transaction that authenticates public key
+ownership against a Turret. It MUST have a Sequence Number of 0 to ensure the
+transaction is not malicious and is unable to be submitted. The following
+information will be pulled from the Xdr Token Transaction:
+
+* Sequence Number
+  * Verify the sequence number is 0 - if not, reject the token.
+* Source account
+  * The account that is paying fees in to the turret through the claimable balance
+* Timebounds
+  * The max time of the timebounds will be the absolute UNIX expiration time of the token.
+* Operations
+  * ClaimClaimableBalance
+    * The Balance Id of the Claimable Fee Balance (of the structure show below) of the fee payment to the turret.
+  * ManageData
+    * Used to pass token parameters into the turret
+    * Valid parameters
+      * Entry name = "txFunction" (If no txFunctions parameters are passed in, the turret does not limit any txFunctions to run)
+        * Value = the hash of the txFunction that the user is allowing the turret to run
+* Signature
+  * The Fee Transaction is signed by the account that is the source account of the transaction
+
+### Example
+
+This [RunKit Example](https://runkit.com/mootz12/60d1f69582e0580013bb591e)
+showcases how to generate a XDR Token. It creates, signs, and generates a valid
+Authorization token.
+
+| | |
+| --- | --- |
+| **Security Scheme Type** | HTTP |
+| **HTTP Authorization Scheme** | bearer |
+| **Bearer Format** | "XDR" |
diff --git a/developers/turret.md b/developers/turret.md
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+# Turret
+
+View information about a Turret
+
+## Get Turret Information
+
+Returns basic information about the turret
+
+### Request
+
+```
+GET /
+```
+
+### Responses
+
+<details><summary>200 Success</summary>
+
+| key | value |
+| --- | --- |
+| `turret` | `string` The public key of the turret owner |
+| `network` | `string` The Stellar Network the turret is on. `TESTNET` or `PUBLIC` |
+| `horizon` | `string` The Horizon API the turret uses |
+| `version` | `string` The repository version and last commit |
+| `fee` | `object (schemas)` |
+| `divisor` | `object (schemas)` |
+
+</details>
+
+### Response Sample
+
+```json
+{
+  "turret": "GB4OYM7TQTJSROWXHOJLKAX2IJ2QN4I6S6GCJH4MGWVTAO5Q5DPNADXX",
+  "network": "TESTNET",
+  "horizon": "https://horizon-testnet.stellar.org",
+  "version": "v0.0.0-ff9e9750369cc8aed29af9f08ae34634594cbe41",
+  "fee": {
+    "min": 1,
+    "max": 10,
+    "days": 180
+  },
+  "divisor": {
+    "upload": 1000,
+    "run": 100000
+  }
+}
+```
+
+## Get the Turret's TOML file
+
+Returns the `stellar.toml` file associated with the turret
+
+### Request
+
+```
+GET /.well-known/stellar.toml
+```
+
+### Responses
+
+<details><summary>200</summary>
+
+A [Stellar TOML](https://github.com/stellar/stellar-protocol/blob/master/ecosystem/sep-0001.md) file
+
+</details>
diff --git a/developers/tx-functions.md b/developers/tx-functions.md
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+# txFunctions
+
+Manage and run txFunctions on the Turret. A txFuntion is a JavaScript file that
+outputs a valid Transaction Envelope XDR. The txFunction will be executed in a
+node environment with the following default node_module packages:
+
+* bignumber.js
+* node-fetch
+* stellar-sdk
+
+## Upload a txFunction
+
+Uploads a txFunction to the turret
+
+### Request
+
+```
+POST /tx-functions
+```
+
+REQUEST BODY SCHEMA: multipart/form-data
+
+| key | value |
+| --- | --- |
+| `txFunction` | `string` The source code to be uploaded |
+| `txFunctionFields` | `string` A Base64 encoded array of json object of the input fields for the contract |
+| `txFunctionFee` | `string` A signed, non-submitted transaction envelope XDR for a fee payment to the `TURRET_ADDRESS` that is greater than or equal to the byte length of the contract divided by the `UPLOAD_DIVISOR` set by the turret |
+
+### Request Sample
+
+```json
+{
+  "txFunction": "/some/path/txFunction.js",
+  "txFunctionFields": "W3sibmFtZSI6ImRlc3RpbmF0aW9uIiwidHlwZSI6InN0cmluZyIsImRlc2NyaXB0aW9uIjoiU3RlbGxhciBwdWJsaWMga2V5IHlvdSdkIGxpa2UgdG8gcGF5IiwicnVsZSI6Ik11c3QgYmUgYSB2YWxpZCBhbmQgZnVuZGVkIFN0ZWxsYXIgcHVibGljIGtleSJ9XQ",
+  "txFunctionFee": "AAAAAgAAAABTqjFHz0quLSka8SOrkw7R07aqDNUHAe+Qm5PX0jMiGwAAAGQAHfBZAAAADgAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAQAAAAB47DPzhNMoutc7krUC+kJ1BvEel4wkn4w1qzA7sOje0AAAAAAAAAAAAJiWgAAAAAAAAAAB0jMiGwAAAEAZjWTnxXY2lxVt0VSos6/Uvpoo3pXo6l+0Xk/P+sE5KDPwhAYkVQyXEBb8prEYprzp3aSlLF4TKcw3m/RM5IMK"
+}
+```
+
+### Responses
+
+<details><summary>200 txFunction uploaded</summary>
+
+RESPONSE SCHEMA: application/json
+
+| key | value |
+| --- | --- |
+| `hash` | `string` The SHA256 hash value of the contract |
+| `signer` | `string` The public key of the signer the turret will use to sign the uploaded contract |
+
+</details>
+
+<details><summary>402 payment required</summary>
+
+RESPONSE SCHEMA: application/json
+
+| key | value |
+| --- | --- |
+| `message` | `string` Description of what failed |
+| `turret` | `string` The public key of the turret requiring payment |
+| `cost` | `string` The cost of the operation in lumens |
+
+</details>
+
+### Response Samples
+
+#### 200 txFunction Uploaded
+
+```
+{
+  "hash": "78565516a844fd4dfc5a7fc7da822028b04ee0aeaf981a4a914d4510906a7a32",
+  "signer": "GB6VNMGXKHS4UTIXW7U23ZQFWD7UJIWCJNQZR7ISNKBTYNULCFQKKPIK"
+}
+```
+
+#### 402 payment required
+
+```
+{
+  "message": "Failed to process txFunctionFee",
+  "turret": "GB4OYM7TQTJSROWXHOJLKAX2IJ2QN4I6S6GCJH4MGWVTAO5Q5DPNADXX",
+  "cost": "0.2740000"
+}
+```