How to connect Twelve Data to Hermes Agent
Connect Twelve Data to Hermes with ClawLink: paste your Twelve Data key once and 97 tools work from chat. No MCP server to run, nothing stored on your machine.
Twelve DataAPI KEYMCPTwelve Data provides a comprehensive financial data API offering real-time and historical market data for stocks, forex, cryptocurrencies, ETFs, and indices.. Once connected, Hermes Agent can read and act on Twelve Data from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent Twelve Data access start with registering your own OAuth app or pasting API keys into env files, then leave the token refresh and tool wiring to you. ClawLink gives Hermes a more practical Twelve Data setup: pair once in the browser and your always-on Hermes agent can act on Twelve Data for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself.
Copy this prompt into Hermes to install the plugin and pair your account.
Set up ClawLink for Hermes and tell me when it's ready.
1. Install the plugin:
hermes plugins install ClawLink-HQ/hermes-plugin --enable
2. Start pairing. It prints an approval link, so show me the link and stop, don't wait:
hermes clawlink begin
3. I'll approve it in my browser, then reply "approved".
4. When I say approved, finish setup:
hermes clawlink finish
5. Then run `hermes clawlink test` and tell me whether ClawLink is ready.Setup
It takes three steps to connect Hermes to Twelve Data.
1Install and pair
Install the ClawLink plugin, then pair Hermes with a one-time browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable- 2
Connect Twelve Data
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with Twelve Data?"
Install by command
The prompt above walks Hermes through this. By hand, it is four commands and a browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable
hermes clawlink begin # prints an approval link — open it and approve
hermes clawlink finish # after approving in the browser
hermes clawlink testThen connect Twelve Data in the ClawLink dashboard — paste your Twelve Data API key once.
Verify the connection by asking Hermes:
Use Twelve Data to cash flow and walk me through the result in plain English.
Using a different agent?
The Hermes plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:
npx -y @useclawlink/cli loginlogin opens the same browser approval and stores a credential locally. Once Twelve Data is connected in the dashboard, that agent calls the same 97 Twelve Data tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
Twelve Data MCP for Hermes
Looking for a Twelve Data MCP server for Hermes Agent? ClawLink connects Twelve Data to Hermes Agent and exposes 97 Twelve Data tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw Twelve Data integration works the same way.
What the Hermes Agent Twelve Data integration can do
97 Twelve Data tools are ready for Hermes Agent once the account is connected. The 30 below are the ones people reach for most; your agent can call all 97.
30 of 97 Twelve Data tools for Hermes
| Tool | What it does |
|---|---|
Cash flow twelve_data_cash_flow | Get company cash flow statement |
Cash flow consolidated twelve_data_cash_flow_consolidated | Get raw consolidated cash flow statements |
Commodities list twelve_data_commodities_list | Retrieve a list of supported commodities |
Correl twelve_data_correl | Fetch Pearson correlation coefficient between two series over a period |
Countries list twelve_data_countries_list | Retrieve a list of countries with ISO codes, names, capitals, and currencies |
Cross listings twelve_data_cross_listings | Retrieve cross-listed symbols for a security across multiple exchanges |
Cryptocurrencies twelve_data_cryptocurrencies | List all supported cryptocurrencies |
Cryptocurrency exchanges list get twelve_data_cryptocurrency_exchanges_list_get | List supported cryptocurrency exchanges |
Currency conversion twelve_data_currency_conversion | Convert an amount from one currency to another |
Dividends twelve_data_dividends | Retrieve dividend payout history for a specified symbol |
Earnings twelve_data_earnings | Retrieve earnings data including EPS estimates and actuals |
Eps revisions twelve_data_eps_revisions | Provide analysts’ revisions of a company’s future EPS over the last week and month |
Eps trend action twelve_data_eps_trend_action | Retrieve EPS trend estimates for a specified company |
Etfs directory twelve_data_etfs_directory | Fetch a daily updated list of exchange-traded funds sorted by total assets |
Etfs family twelve_data_etfs_family | Fetch a comprehensive list of ETFs by family |
Etfs type twelve_data_etfs_type | Retrieve ETF categories by market, including types like 'Equity Precious Metals' |
Etfs world twelve_data_etfs_world | Fetch comprehensive ETF analytics (summary, performance, risk, composition) |
Etfs world composition twelve_data_etfs_world_composition | Fetch global ETF composition details including sector, country, asset allocations, top |
Etfs world risk twelve_data_etfs_world_risk | Get global ETF risk metrics |
Exchanges twelve_data_exchanges | Retrieve a list of supported exchanges |
Forex pairs twelve_data_forex_pairs | Retrieve a list of all supported forex currency pairs |
Get ad twelve_data_get_ad | Retrieve Accumulation/Distribution (AD) indicator data for a financial instrument |
Get API usage twelve_data_get_api_usage | Retrieve your current plan and remaining API credits |
Get apo twelve_data_get_apo | Calculate the Absolute Price Oscillator (APO) for a financial instrument |
Get aroon twelve_data_get_aroon | Retrieve Aroon Indicator data for identifying market trends |
Get balance sheet twelve_data_get_balance_sheet | Retrieve a company's balance sheet (assets, liabilities, equity) |
Get balance sheet consolidated twelve_data_get_balance_sheet_consolidated | Get raw consolidated balance sheet data (assets, liabilities, equity) for a company |
Get bbands twelve_data_get_bbands | Calculate Bollinger Bands (BBANDS) for a financial instrument |
Get bonds twelve_data_get_bonds | Retrieve a daily updated list of available bonds (fixed income securities) |
Get cci twelve_data_get_cci | Retrieve Commodity Channel Index (CCI) values for a specified security |
Try it: find the Twelve Data tool you need
Browse the 30 Twelve Data tools
Click any tool to see exactly what Hermes can do and copy a ready-to-use prompt.
Example prompts
Use Twelve Data to cash flow and walk me through the result in plain English.
Use Twelve Data to cash flow consolidated and walk me through the result in plain English.
Use Twelve Data to commodities list and walk me through the result in plain English.
Use Twelve Data to correl and walk me through the result in plain English.
ClawLink vs. building it yourself
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Twelve Data working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the Twelve Data API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Twelve Data account becomes available to the agent without you building credential management. |
| Ongoing maintenance | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for Twelve Data. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| Agent usability | You still need to expose the right Twelve Data actions to the runtime in a format your agent can reliably use. | 97 tools for Twelve Data are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes Twelve Data to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for Hermes Agent users instead. You install the plugin once, connect Twelve Data in the browser, and the 97 tools above work from chat. There is no SDK and no config file, and the Twelve Data key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full Composio alternatives comparison.
Troubleshooting
Hermes paired but still can't use Twelve Data
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
Connection succeeds but no tools appear
Reconnect Twelve Data from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.
"Tool schema not loaded yet" error when calling Twelve Data tools
Twelve Data tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every Twelve Data call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.
Twelve Data returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.
API key setup works but results look incomplete
Double-check that the API key for Twelve Data has the right scopes or account access. A valid key can still be too limited for some reads or writes.
FAQ
Is there a Hermes Agent Twelve Data integration?
Yes. ClawLink is the fastest way to connect Hermes to Twelve Data: link your Twelve Data account once in the browser and Hermes Agent can call the Twelve Data API through 97 ready-made tools — no custom code or token handling.
How do I connect Twelve Data to Hermes with ClawLink?
Install the plugin with hermes plugins install ClawLink-HQ/hermes-plugin --enable, then pair once: run hermes clawlink begin, approve the link in your browser, and run hermes clawlink finish. Connect Twelve Data in the dashboard and Hermes can use it from the next message — no config files, and the Twelve Data key you paste is stored server-side instead of in your environment.
How long does it take to connect Twelve Data to Hermes Agent?
About two minutes. Sign in, click Connect next to Twelve Data in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring Twelve Data up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Twelve Data working from chat.
Hermes paired but still can't use Twelve Data
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
