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Hermes Agent cc06beaf13 [verified] fix(mcp-oauth): seed token_expiry_time + pre-flight AS discovery on cold-load
PR #11383's consolidation fixed external-refresh reloading and 401 dedup
but left two latent bugs that surfaced on BetterStack and any other OAuth
MCP with a split-origin authorization server:

1. HermesTokenStorage persisted only a relative 'expires_in', which is
   meaningless after a process restart. The MCP SDK's OAuthContext
   does NOT seed token_expiry_time in _initialize, so is_token_valid()
   returned True for any reloaded token regardless of age. Expired
   tokens shipped to servers, and app-level auth failures (e.g.
   BetterStack's 'No teams found. Please check your authentication.')
   were invisible to the transport-layer 401 handler.

2. Even once preemptive refresh did fire, the SDK's _refresh_token
   falls back to {server_url}/token when oauth_metadata isn't cached.
   For providers whose AS is at a different origin (BetterStack:
   mcp.betterstack.com for MCP, betterstack.com/oauth/token for the
   token endpoint), that fallback 404s and drops into full browser
   re-auth on every process restart.

Fix set:

- HermesTokenStorage.set_tokens persists an absolute wall-clock
  expires_at alongside the SDK's OAuthToken JSON (time.time() + TTL
  at write time).
- HermesTokenStorage.get_tokens reconstructs expires_in from
  max(expires_at - now, 0), clamping expired tokens to zero TTL.
  Legacy files without expires_at fall back to file-mtime as a
  best-effort wall-clock proxy, self-healing on the next set_tokens.
- HermesMCPOAuthProvider._initialize calls super(), then
  update_token_expiry on the reloaded tokens so token_expiry_time
  reflects actual remaining TTL. If tokens are loaded but
  oauth_metadata is missing, pre-flight PRM + ASM discovery runs
  via httpx.AsyncClient using the MCP SDK's own URL builders and
  response handlers (build_protected_resource_metadata_discovery_urls,
  handle_auth_metadata_response, etc.) so the SDK sees the correct
  token_endpoint before the first refresh attempt. Pre-flight is
  skipped when there are no stored tokens to keep fresh-install
  paths zero-cost.

Test coverage (tests/tools/test_mcp_oauth_cold_load_expiry.py):
- set_tokens persists absolute expires_at
- set_tokens skips expires_at when token has no expires_in
- get_tokens round-trips expires_at -> remaining expires_in
- expired tokens reload with expires_in=0
- legacy files without expires_at fall back to mtime proxy
- _initialize seeds token_expiry_time from stored tokens
- _initialize flags expired-on-disk tokens as is_token_valid=False
- _initialize pre-flights PRM + ASM discovery with mock transport
- _initialize skips pre-flight when no tokens are stored

Verified against BetterStack MCP:
  hermes mcp test betterstack -> Connected (2508ms), 83 tools
  mcp_betterstack_telemetry_list_teams_tool -> real team data, not
    'No teams found. Please check your authentication.'

Reference: mcp-oauth-token-diagnosis skill, Fix A.
2026-04-18 14:57:38 +10:00
.github fix: match the url as prev 2026-04-15 23:33:03 -04:00
.plans Merge PR #724: feat: --yolo flag to bypass all approval prompts 2026-03-10 20:56:30 -07:00
acp_adapter fix(acp): improve zed integration 2026-04-17 13:29:26 -07:00
acp_registry feat: restore ACP server implementation from PR #949 (#1254) 2026-03-14 00:09:05 -07:00
agent fix(auth): restore --label for hermes auth add nous --type oauth 2026-04-17 19:13:40 -07:00
assets Update banner image to new version 2026-02-25 11:53:44 -08:00
cron fix(qqbot): add back-compat for env var rename; drop qrcode core dep 2026-04-17 15:31:14 -07:00
datagen-config-examples feat: add WebResearchEnv RL environment for multi-step web research 2026-03-05 14:34:36 +00:00
docker feat: entry-level Podman support — find_docker() + rootless entrypoint (#10066) 2026-04-14 21:20:37 -07:00
docs feat(tui): put the kawaii face+verb ticker in the status bar, not the thinking panel 2026-04-16 20:14:25 -05:00
environments fix: cap image download size at 50 MB, validate tool call parser fields 2026-04-11 02:03:20 -07:00
gateway fix(gateway): detect legacy hermes.service + mark --replace SIGTERM as planned (#11909) 2026-04-17 19:27:58 -07:00
hermes_cli feat(update): warn about legacy hermes.service units during hermes update (#11918) 2026-04-17 19:35:12 -07:00
nix update nix 2026-04-16 11:50:35 -04:00
optional-skills docs(skills): make descriptions self-contained, not cross-dependent 2026-04-16 20:39:55 -07:00
packaging/homebrew chore: prepare Hermes for Homebrew packaging (#4099) 2026-03-30 17:34:43 -07:00
plans docs: Gemini OAuth provider implementation plan (#2467) 2026-03-22 04:46:05 -07:00
plugins fix(honcho): strip whitespace from conclusion and delete_id inputs 2026-04-16 09:50:10 -07:00
scripts chore(release): add pedh to AUTHOR_MAP 2026-04-17 19:26:53 -07:00
skills docs(skills): make descriptions self-contained, not cross-dependent 2026-04-16 20:39:55 -07:00
tests [verified] fix(mcp-oauth): seed token_expiry_time + pre-flight AS discovery on cold-load 2026-04-18 14:57:38 +10:00
tinker-atropos@65f084ee80 Add tinker-atropos submodule and update RL training tools 2026-02-04 10:36:01 -08:00
tools [verified] fix(mcp-oauth): seed token_expiry_time + pre-flight AS discovery on cold-load 2026-04-18 14:57:38 +10:00
tui_gateway fix(tui): first-run setup preflight + actionable no-provider panel 2026-04-17 10:58:01 -05:00
ui-tui chore: uptick 2026-04-17 15:13:33 -05:00
web dashboard: show GATEWAY_HEALTH_URL instead of PID for remote gateways 2026-04-16 16:48:14 -07:00
website docs(dingtalk): document AI Cards, emoji reactions, and display settings 2026-04-17 19:26:53 -07:00
.dockerignore fix(docker): add .venv to .dockerignore 2026-04-13 04:52:00 -07:00
.env.example feat: add Ollama Cloud as built-in provider 2026-04-16 02:22:09 -07:00
.envrc nix: add tui lockfile update script 2026-04-10 00:46:37 -04:00
.gitattributes feat: web UI dashboard for managing Hermes Agent (#8756) 2026-04-12 22:26:28 -07:00
.gitignore Merge branch 'main' of github.com:NousResearch/hermes-agent into feat/ink-refactor 2026-04-13 18:32:13 -05:00
.gitmodules refactor: remove mini-swe-agent dependency — inline Docker/Modal backends (#2804) 2026-03-24 07:30:25 -07:00
.mailmap chore: add MestreY0d4-Uninter to AUTHOR_MAP and .mailmap 2026-04-15 15:03:28 -07:00
AGENTS.md Merge branch 'main' of github.com:NousResearch/hermes-agent into feat/ink-refactor 2026-04-17 08:59:33 -05:00
batch_runner.py fix(agent): complete Claude Opus 4.7 API migration 2026-04-16 10:48:20 -07:00
cli-config.yaml.example fix(providers): complete NVIDIA NIM parity with other providers 2026-04-17 13:47:46 -07:00
cli.py Merge branch 'main' of github.com:NousResearch/hermes-agent into feat/ink-refactor 2026-04-17 08:59:33 -05:00
constraints-termux.txt feat: add tested Termux install path and EOF-aware gh auth 2026-04-09 16:24:53 -07:00
CONTRIBUTING.md refactor: remove mini-swe-agent dependency — inline Docker/Modal backends (#2804) 2026-03-24 07:30:25 -07:00
Dockerfile add git to the container installed packages (fixes #8439) 2026-04-13 13:08:19 -07:00
flake.lock fix nix build 2026-04-11 15:30:37 -04:00
flake.nix nix: add tui lockfile update script 2026-04-10 00:46:37 -04:00
hermes fix: use argparse entrypoint in top-level launcher (#3874) 2026-03-29 21:54:36 -07:00
hermes-already-has-routines.md docs: automation templates gallery + comparison post (#9821) 2026-04-14 12:30:50 -07:00
hermes_constants.py Merge branch 'main' of github.com:NousResearch/hermes-agent into feat/ink-refactor 2026-04-13 21:17:41 -05:00
hermes_logging.py fix: detect and strip non-ASCII characters from API keys (#6843) 2026-04-14 20:20:31 -07:00
hermes_state.py fix: remove 115 verified dead code symbols across 46 production files 2026-04-10 03:44:43 -07:00
hermes_time.py refactor: extract shared helpers to deduplicate repeated code patterns (#7917) 2026-04-11 13:59:52 -07:00
LICENSE fix: restore missing MIT license file 2026-03-07 13:43:08 -08:00
MANIFEST.in chore: prepare Hermes for Homebrew packaging (#4099) 2026-03-30 17:34:43 -07:00
mcp_serve.py refactor: codebase-wide lint cleanup — unused imports, dead code, and inefficient patterns (#5821) 2026-04-07 10:25:31 -07:00
mini_swe_runner.py chore: fix 154 f-strings, simplify getattr/URL patterns, remove dead code (#3119) 2026-03-25 19:47:58 -07:00
model_tools.py fix(tools): auto-discover built-in tool modules 2026-04-14 21:12:29 -07:00
package-lock.json fix(browser): fix Camofox JS eval endpoint, userId, and package rename (#9774) 2026-04-14 10:21:54 -07:00
package.json fix(browser): fix Camofox JS eval endpoint, userId, and package rename (#9774) 2026-04-14 10:21:54 -07:00
pyproject.toml feat(dingtalk): AI Cards streaming, emoji reactions, and media handling 2026-04-17 19:26:53 -07:00
README.md Merge branch 'main' of github.com:NousResearch/hermes-agent into feat/ink-refactor 2026-04-17 17:51:40 -05:00
RELEASE_v0.2.0.md chore: rebuild changelog with correct time window (Feb 25 12PM PST onwards) 2026-03-12 02:33:50 -07:00
RELEASE_v0.3.0.md chore: release v0.3.0 (v2026.3.17) 2026-03-17 00:38:48 -07:00
RELEASE_v0.4.0.md docs: revise v0.4.0 changelog — fix feature attribution, reorder sections 2026-03-23 22:42:22 -07:00
RELEASE_v0.5.0.md chore: release v0.5.0 (v2026.3.28) (#3568) 2026-03-28 13:11:39 -07:00
RELEASE_v0.6.0.md chore: release v0.6.0 (2026.3.30) (#3985) 2026-03-30 08:29:38 -07:00
RELEASE_v0.7.0.md chore: release v0.7.0 (2026.4.3) (#4812) 2026-04-03 11:14:55 -07:00
RELEASE_v0.8.0.md docs: update v0.8.0 highlights — notify_on_complete, MiMo v2 Pro, reorder 2026-04-08 04:59:45 -07:00
RELEASE_v0.9.0.md fix: add contributor audit script + fix missed contributors (#9264) 2026-04-13 16:31:27 -07:00
RELEASE_v0.10.0.md chore: release v0.10.0 (2026.4.16) (#11209) 2026-04-16 12:53:06 -07:00
requirements.txt fix(qqbot): add back-compat for env var rename; drop qrcode core dep 2026-04-17 15:31:14 -07:00
rl_cli.py refactor: consolidate get_hermes_home() and parse_reasoning_effort() (#3062) 2026-03-25 15:54:28 -07:00
run_agent.py fix(kimi): force 0.6 on main chat path 2026-04-17 18:47:01 -07:00
SECURITY.md docs: add terminal bypass test to Out of Scope section 2026-04-15 14:34:09 -07:00
setup-hermes.sh fix(termux): make setup-hermes use android path 2026-04-09 16:24:53 -07:00
toolset_distributions.py chore: fix 154 f-strings, simplify getattr/URL patterns, remove dead code (#3119) 2026-03-25 19:47:58 -07:00
toolsets.py feat: add Feishu document comment intelligent reply with 3-tier access control 2026-04-17 19:04:11 -07:00
trajectory_compressor.py fix: load credentials from HERMES_HOME .env in trajectory_compressor 2026-04-14 10:24:19 -07:00
utils.py fix: preserve file permissions on atomic writes (Docker/NAS fix) (#10618) 2026-04-15 19:52:46 -07:00
uv.lock feat(dingtalk): AI Cards streaming, emoji reactions, and media handling 2026-04-17 19:26:53 -07:00

Hermes Agent

Hermes Agent ☤

Documentation Discord License: MIT Built by Nous Research

The self-improving AI agent built by Nous Research. It's the only agent with a built-in learning loop — it creates skills from experience, improves them during use, nudges itself to persist knowledge, searches its own past conversations, and builds a deepening model of who you are across sessions. Run it on a $5 VPS, a GPU cluster, or serverless infrastructure that costs nearly nothing when idle. It's not tied to your laptop — talk to it from Telegram while it works on a cloud VM.

Use any model you want — Nous Portal, OpenRouter (200+ models), NVIDIA NIM (Nemotron), Xiaomi MiMo, z.ai/GLM, Kimi/Moonshot, MiniMax, Hugging Face, OpenAI, or your own endpoint. Switch with hermes model — no code changes, no lock-in.

A real terminal interfaceFull TUI with multiline editing, slash-command autocomplete, conversation history, interrupt-and-redirect, and streaming tool output.
Lives where you doTelegram, Discord, Slack, WhatsApp, Signal, and CLI — all from a single gateway process. Voice memo transcription, cross-platform conversation continuity.
A closed learning loopAgent-curated memory with periodic nudges. Autonomous skill creation after complex tasks. Skills self-improve during use. FTS5 session search with LLM summarization for cross-session recall. Honcho dialectic user modeling. Compatible with the agentskills.io open standard.
Scheduled automationsBuilt-in cron scheduler with delivery to any platform. Daily reports, nightly backups, weekly audits — all in natural language, running unattended.
Delegates and parallelizesSpawn isolated subagents for parallel workstreams. Write Python scripts that call tools via RPC, collapsing multi-step pipelines into zero-context-cost turns.
Runs anywhere, not just your laptopSix terminal backends — local, Docker, SSH, Daytona, Singularity, and Modal. Daytona and Modal offer serverless persistence — your agent's environment hibernates when idle and wakes on demand, costing nearly nothing between sessions. Run it on a $5 VPS or a GPU cluster.
Research-readyBatch trajectory generation, Atropos RL environments, trajectory compression for training the next generation of tool-calling models.

Quick Install

curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash

Works on Linux, macOS, WSL2, and Android via Termux. The installer handles the platform-specific setup for you.

Android / Termux: The tested manual path is documented in the Termux guide. On Termux, Hermes installs a curated .[termux] extra because the full .[all] extra currently pulls Android-incompatible voice dependencies.

Windows: Native Windows is not supported. Please install WSL2 and run the command above.

After installation:

source ~/.bashrc    # reload shell (or: source ~/.zshrc)
hermes              # start chatting!

Getting Started

hermes              # Interactive CLI — start a conversation
hermes model        # Choose your LLM provider and model
hermes tools        # Configure which tools are enabled
hermes config set   # Set individual config values
hermes gateway      # Start the messaging gateway (Telegram, Discord, etc.)
hermes setup        # Run the full setup wizard (configures everything at once)
hermes claw migrate # Migrate from OpenClaw (if coming from OpenClaw)
hermes update       # Update to the latest version
hermes doctor       # Diagnose any issues

📖 Full documentation →

CLI vs Messaging Quick Reference

Hermes has two entry points: start the terminal UI with hermes, or run the gateway and talk to it from Telegram, Discord, Slack, WhatsApp, Signal, or Email. Once you're in a conversation, many slash commands are shared across both interfaces.

Action CLI Messaging platforms
Start chatting hermes Run hermes gateway setup + hermes gateway start, then send the bot a message
Start fresh conversation /new or /reset /new or /reset
Change model /model [provider:model] /model [provider:model]
Set a personality /personality [name] /personality [name]
Retry or undo the last turn /retry, /undo /retry, /undo
Compress context / check usage /compress, /usage, /insights [--days N] /compress, /usage, /insights [days]
Browse skills /skills or /<skill-name> /skills or /<skill-name>
Interrupt current work Ctrl+C or send a new message /stop or send a new message
Platform-specific status /platforms /status, /sethome

For the full command lists, see the CLI guide and the Messaging Gateway guide.


Documentation

All documentation lives at hermes-agent.nousresearch.com/docs:

Section What's Covered
Quickstart Install → setup → first conversation in 2 minutes
CLI Usage Commands, keybindings, personalities, sessions
Configuration Config file, providers, models, all options
Messaging Gateway Telegram, Discord, Slack, WhatsApp, Signal, Home Assistant
Security Command approval, DM pairing, container isolation
Tools & Toolsets 40+ tools, toolset system, terminal backends
Skills System Procedural memory, Skills Hub, creating skills
Memory Persistent memory, user profiles, best practices
MCP Integration Connect any MCP server for extended capabilities
Cron Scheduling Scheduled tasks with platform delivery
Context Files Project context that shapes every conversation
Architecture Project structure, agent loop, key classes
Contributing Development setup, PR process, code style
CLI Reference All commands and flags
Environment Variables Complete env var reference

Migrating from OpenClaw

If you're coming from OpenClaw, Hermes can automatically import your settings, memories, skills, and API keys.

During first-time setup: The setup wizard (hermes setup) automatically detects ~/.openclaw and offers to migrate before configuration begins.

Anytime after install:

hermes claw migrate              # Interactive migration (full preset)
hermes claw migrate --dry-run    # Preview what would be migrated
hermes claw migrate --preset user-data   # Migrate without secrets
hermes claw migrate --overwrite  # Overwrite existing conflicts

What gets imported:

  • SOUL.md — persona file
  • Memories — MEMORY.md and USER.md entries
  • Skills — user-created skills → ~/.hermes/skills/openclaw-imports/
  • Command allowlist — approval patterns
  • Messaging settings — platform configs, allowed users, working directory
  • API keys — allowlisted secrets (Telegram, OpenRouter, OpenAI, Anthropic, ElevenLabs)
  • TTS assets — workspace audio files
  • Workspace instructions — AGENTS.md (with --workspace-target)

See hermes claw migrate --help for all options, or use the openclaw-migration skill for an interactive agent-guided migration with dry-run previews.


Contributing

We welcome contributions! See the Contributing Guide for development setup, code style, and PR process.

Quick start for contributors — clone and go with setup-hermes.sh:

git clone https://github.com/NousResearch/hermes-agent.git
cd hermes-agent
./setup-hermes.sh     # installs uv, creates venv, installs .[all], symlinks ~/.local/bin/hermes
./hermes              # auto-detects the venv, no need to `source` first

Manual path (equivalent to the above):

curl -LsSf https://astral.sh/uv/install.sh | sh
uv venv venv --python 3.11
source venv/bin/activate
uv pip install -e ".[all,dev]"
python -m pytest tests/ -q

RL Training (optional): To work on the RL/Tinker-Atropos integration:

git submodule update --init tinker-atropos
uv pip install -e "./tinker-atropos"

Community


License

MIT — see LICENSE.

Built by Nous Research.