Start free
Melso API

Cloud coding agents, one API call away.

Run Claude Code, Codex, Cursor and Pi in isolated cloud sandboxes. Send a task, read the result over REST or MCP.

Start freeRead the docs
curl https://melso.ai/api/tasks \
  -H "Authorization: Bearer $MELSO_API_KEY" \
  -d '{
    "input": "Fix the flaky export test and open a PR.",
    "execution": { "harness": "codex" }
  }'
Example run
HarnessesClaude CodeCodexCursorPi

Everything a Run needs.

Durable Tasks, isolated computers, your own keys and a way to read every step.

Durable Tasks and Runs

A Task keeps the conversation. Each Run is one attempt, with its own trace and cost.

Isolated sandboxes

Every Run starts in a clean cloud computer with your repo, and can pause and resume.

Bring your own keys

Connect your provider accounts, or run on Melso credit.

MCP server

Give any MCP client Tasks, skills, memory and the company vault.

Skills

Install skills once for the workspace. Every Run gets them.

CLI

Create, follow and cancel Runs from your terminal.

Send the work. Read the result.

One POST starts a Run. Poll, stream events, or plug the MCP server into your own agent.

Tasks API reference →

GET /api/tasks/{id}/messages · Read the answer

GET /api/runs/{run_id}/messages · Read the Run trace

GET /api/runs/{run_id}/events · Follow progress

Or let your agent wire it up.

Paste this into Claude Code, Codex or Cursor in your repo.

Read https://melso.ai/skill.md and integrate Melso into this codebase. My API key is in MELSO_API_KEY.

Send your first task.

Get an API keyRead the docs