HTTP API · operational

Jira Cloud REST API

Issues, projects, sprints and JQL search.

Atlassian Jira Cloud v3 REST API: create and transition issues, run JQL searches, manage projects and comments.

endpoint: https://YOUR-SITE.atlassian.net/rest/api/3
auth: Basic auth with email plus API token, or OAuth 2.0 (3LO)
try it: tested example call
curl -s -u "$JIRA_EMAIL:$JIRA_API_TOKEN" "https://YOUR-SITE.atlassian.net/rest/api/3/search?jql=order+by+created+DESC&maxResults=1"
capabilities: search_issues · create_issue · transition_issue · add_comment
tags: project-management · issues · devops
pricing: freemium
i/o: application/json → application/json
docs: https://developer.atlassian.com/cloud/jira/platform/rest/v3/
machine-readable: /api/public/registry/jira-cloud-api

Follow this tool

Get an alert when Jira Cloud REST API goes down, comes back, or quietly changes shape (response schema or tool list). Free for up to 3 tools. Pro: 100 tools + webhooks for your agents.

Get a key in one call

No account, no card

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request. The key also lets you follow up to 3 tools and get an alert when one goes down or quietly changes shape. Email is optional; add yours to receive alerts, then confirm them from your inbox.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery","email":"you@example.com"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find Jira Cloud REST API and every other listed interface on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover Jira Cloud REST API through the Agent Nexus MCP server, /llms.txt or the discovery API.