Function

Your serverless code: publish it, call it over HTTP, watch every run and what it cost.

Also for this capability: API · CLI · MCP · SDKs

Your serverless code: publish it, call it over HTTP, watch every run and what it cost.

Base URL	`https://api.hanzo.ai`
Operations	11
Auth	`Authorization: Bearer $HANZO_API_KEY`

Specification

Specification pending — no HIP in hanzoai/hips declares capability: function yet. What this capability serves is below, from the API document; what it is — the store it owns, how it meters, what it publishes — is written as a HIP under HIP-0139.

Four surfaces

Surface	Reaches this capability as	Coverage
REST	`function` at its own prefix	11 operations
CLI	`hanzo function …`	11 of 11
SDK	`FunctionApi` in every published client	11 methods
MCP	tool `function` on `https://api.hanzo.ai/v1/mcp`	10 operations, 1 under the document's own id — ask `describe` for the rest

Quickstart

export HANZO_API_KEY=sk-...   # console.hanzo.ai → API keys

Then the first call — a read that needs nothing but the key. GET /v1/function, operation get_function:

CLI

SDK

HTTP

MCP

hanzo function list

.ts

.py

.go

.rs

.java

import { Configuration, FunctionApi } from 'hanzoai';

const api = new FunctionApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getFunction();

from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import FunctionApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = FunctionApi(client).get_function()

cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.FunctionAPI.GetFunction(context.Background()).Execute()
if err != nil {
	return err
}

use hanzo_client::apis::{configuration::Configuration, function_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = function_api::get_function(&cfg, Default::default()).await?;

import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.FunctionApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new FunctionApi(client).getFunction();

curl https://api.hanzo.ai/v1/function \
  -H "Authorization: Bearer $HANZO_API_KEY"

MCP reaches function through the function tool, which names its 10 operations with its own verbs — this one among them, under a name only MCP declares. describe explains any of them:

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "describe",
         "arguments": {
           "op": "list_functions"
         }
       }
     }'

Answers 200 with object — ok.

Endpoints

Endpoint	What it does
`GET /v1/function/{name}/invocations`	One function's past runs, newest first — each with its status, HTTP code, method, time and duration.
`POST /v1/function/{name}/invoke`	Runs a function and records a REAL invocation.
`GET /v1/function/{name}/logs`	The output of a function's most recent run — its error text when that run failed, else what it printed.
`GET /v1/function/{name}`	One function with everything a detail page needs in one round-trip: its definition, its 7-day rollup, its trigger, its twenty most recent invocations and the NAMES of the secrets it mounts.
`DELETE /v1/function/{name}`	Removes one of the caller org's functions and answers 204.
`GET /v1/function/deployments`	What is live right now — each function's current record IS its live deployment, so this is the deployment inventory.
`GET /v1/function/metrics`	The org's serverless dashboard over a window: a per-function invocation costLine and how those invocations ended.
`GET /v1/function/secrets`	The NAMES of the secrets the caller org's functions mount.
`GET /v1/function/triggers`	What calls the caller org's functions — one row per function.
`GET /v1/function`	Every serverless function the caller's org has published, each with its real 7-day rollup.
`POST /v1/function`	Publishes a serverless function under the caller's org and answers 201 with it.

All Hanzo APIs · Interactive reference

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