Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/tychiwallet/agent-finance/model-context-protocolnpx skills add TychiWallet/agent-finance --skill model-context-protocolgit clone --depth 1 https://github.com/TychiWallet/agent-financeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/tychiwallet/agent-finance/model-context-protocol)<a href="https://agentmods.dev/skills/tychiwallet/agent-finance/model-context-protocol"><img src="https://agentmods.dev/badge/skills/tychiwallet/agent-finance/model-context-protocol.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00090 | $0.02417 |
| Opus 5 | $0.00045 | $0.01208 |
| Sonnet 5 | $0.00018 | $0.00483 |
| Haiku 4.5 | $0.00009 | $0.00242 |
Grade A, and why
tychi-agent-finance-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tychi Agent Finance MCP
Tychi is the financial home for AI agents: self-custody wallets in ~/.tyi, policy on every spend, local signing for transactions and x402.
This skill governs how you use the five MCP tools. Install and host config live in README.md.
Canonical machine index (read first if unfamiliar): llms.txt — category definition, install commands, MCP tool order, trust boundary, FAQ. On GitHub: https://github.com/TychiWallet/agent-finance/blob/main/llms.txt
Install → connect → onboard → use
Follow this sequence when the user wants agent banking but MCP is not ready yet:
1. Install (user action — you guide, you do not run npm)
Tell the user to install the MCP server globally:
npm install -g @tychilabs/agent-finance-mcp
Binary: agent-finance-mcp. Requires Node.js >= 20. Full install + env table: README.md · llms.txt (Install section).
2. Connect (user action — MCP host config)
User adds server tychi-agent-finance to Cursor / Claude Desktop / OpenClaw / Hermes MCP config with TYI_* env vars. Example configs: README.md. You cannot connect MCP yourself — confirm tychi-agent-finance is connected before any tool call.
3. Onboard (your tools — once per MCP process)
After connect: tyi_discover → tyi_onboard. Never skip. Catalog-driven chainId, provider, actions. See Mandatory tool order below.
4. Use (your tools — every task)
tyi_run for tasks. tyi_resume_tx / tyi_resume_x402 only when tyi_run returns pending. State machine detail: llms.txt (MCP — V1 tools).
Before you call any tool
Confirm the MCP server tychi-agent-finance is connected. Required host env (never put these in chat or tool args):
| Variable | Required |
|---|---|
TYI_API_BASE_URL |
yes |
TYI_VAULT_PASSWORD |
yes |
TYI_SESSION_PASSWORD |
yes |
TYI_LLM_API_KEY |
yes |
TYI_LLM_PROVIDER |
no (e.g. openai) |
TYI_CHAIN_ID |
no* |
What ships with it
19 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .mcp.json 606 B
- CHANGELOG.md 944 B
- LICENSE 10 KB
- package-lock.json 48 KB
- package.json 1.5 KB
- README.md 17 KB
- SECURITY.md 1021 B
- server.json 1.1 KB
- src/config/env.ts 1.5 KB runs code
- src/context.ts 1.1 KB runs code
- src/index.ts 374 B runs code
- src/respond.ts 640 B runs code
- src/server.ts 1.9 KB runs code
- src/tools/discover.ts 1.5 KB runs code
- src/tools/onboard.ts 4.0 KB runs code
- src/tools/resume_tx.ts 1.7 KB runs code
- src/tools/resume_x402.ts 1.7 KB runs code
- src/tools/run.ts 1.5 KB runs code
- tsconfig.json 747 B
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 237 lines · 90 tokens per session scan A 280ae37ac9d8
tychi-agent-finance-mcp is a skill published in the GitHub repository TychiWallet/agent-finance (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 90 tokens to every session and 2,417 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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