# How to connect API Ninjas to Hermes Agent (paste one key, 128 tools) > Connect API Ninjas to Hermes with ClawLink: paste your API Ninjas key once and 128 tools work from chat. No MCP server to run, nothing stored on your machine. Web version: https://claw-link.dev/hermes/api-ninjas Most guides for giving Hermes Agent API Ninjas 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 API Ninjas setup: pair once in the browser and your always-on Hermes agent can act on API Ninjas for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself. **Start here — paste this into Hermes to set up ClawLink:** > 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 with `hermes clawlink begin`. It prints an approval link, so show me the link and stop, don't wait. > 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 API Ninjas. 1. **Install ClawLink** — add the plugin to Hermes Agent once. 2. **Connect API Ninjas** — one-click OAuth in the ClawLink dashboard. 3. **Use it from chat** — ask Hermes Agent in plain English. **Alternative for any agent (no plugin needed):** if the Hermes Agent plugin route isn't available or doesn't work, any AI agent with shell access can use the ClawLink CLI instead: ```bash npx -y @useclawlink/cli login # sign in via browser — no API key to paste npx -y @useclawlink/cli connect api-ninjas # connect API Ninjas (browser OAuth) npx -y @useclawlink/cli actions api-ninjas # list available actions npx -y @useclawlink/cli run api-ninjas --input '' # execute (add --confirm for writes) ``` ### Install by command The prompt above walks Hermes through this. By hand, it is four commands and a browser approval: ```bash 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 test ``` Then connect API Ninjas in the [ClawLink dashboard](https://claw-link.dev/dashboard) — paste your API Ninjas API key once. Verify the connection by asking Hermes: > Use API Ninjas to analyze sentiment 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: ```bash npx -y @useclawlink/cli login ``` `login` opens the same browser approval and stores a credential locally. Once API Ninjas is connected in the dashboard, that agent calls the same 128 API Ninjas tools over MCP. Full setup for MCP clients and shell agents: [connect apps to any AI agent](https://claw-link.dev/learn/connect-apps-to-any-ai-agent). ## API Ninjas MCP for Hermes Looking for a API Ninjas MCP server for Hermes Agent? ClawLink connects API Ninjas to Hermes Agent and exposes 128 API Ninjas tools your agent can call over [MCP](https://claw-link.dev/learn/what-is-an-mcp-server), with [hosted auth](https://claw-link.dev/learn/oauth-for-ai-agents) and nothing to run or maintain yourself. Using OpenClaw instead? The [OpenClaw API Ninjas integration](https://claw-link.dev/openclaw/api-ninjas) works the same way. ## What the Hermes Agent API Ninjas integration can do 128 API Ninjas 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 128. ### 30 of 128 API Ninjas tools for Hermes | Tool | What it does | |---|---| | **Analyze sentiment** `api_ninjas_analyze_sentiment` | Analyze the sentiment of text | | **Barcode generate** `api_ninjas_barcode_generate` | Generate a barcode image for specified text | | **Bin lookup** `api_ninjas_bin_lookup` | Look up bank information from a Bank Identification Number | | **Bitcoin** `api_ninjas_bitcoin` | Retrieve the latest Bitcoin price and 24-hour market data | | **Calculate calories burned** `api_ninjas_calculate_calories_burned` | Calculate calories burned for an activity based on duration and body weight | | **Calculate mortgage** `api_ninjas_calculate_mortgage` | Calculate mortgage payments and breakdowns | | **Calculate sales tax** `api_ninjas_calculate_sales_tax` | Calculate sales tax for a purchase amount at a US location | | **Check domain** `api_ninjas_check_domain` | Check domain availability and retrieve registration information | | **Get counter** `api_ninjas_get_counter` | Get and optionally increment a persistent counter | | **Check is public holiday** `api_ninjas_check_is_public_holiday` | Check if a specific date is a public holiday in a given country | | **Check is working day** `api_ninjas_check_is_working_day` | Check if a date is a working day in a specific country | | **Check spelling** `api_ninjas_check_spelling` | Check spelling and get corrections for text | | **Commodity price** `api_ninjas_commodity_price` | Get real-time commodity prices from major exchanges (CME, NYMEX, COMEX) | | **Compute text similarity** `api_ninjas_compute_text_similarity` | Compute semantic similarity between two texts | | **Convert currency** `api_ninjas_convert_currency` | Convert between currencies using current exchange rates | | **Convert unit** `api_ninjas_convert_unit` | Convert between measurement units across different categories | | **Crypto price** `api_ninjas_crypto_price` | Get the current real-time price for a cryptocurrency trading pair | | **Detect text language** `api_ninjas_detect_text_language` | Detect the language of input text | | **Disposable email checker** `api_ninjas_disposable_email_checker` | Check whether an email address is from a disposable email provider | | **Dns lookup** `api_ninjas_dns_lookup` | Retrieve DNS records for a specified domain | | **Earnings calendar** `api_ninjas_earnings_calendar` | Fetches historical earnings data (EPS and revenue - actual vs | | **Earnings call transcript** `api_ninjas_earnings_call_transcript` | Retrieve the full earnings call transcript for a publicly traded company | | **Etf info** `api_ninjas_etf_info` | Retrieve detailed information about an Exchange-Traded Fund (ETF) by its ticker symbol | | **Extract webpage content** `api_ninjas_extract_webpage_content` | Extract main content and metadata from a webpage | | **Filter profanity** `api_ninjas_filter_profanity` | Detect and censor profanity in text | | **Find ev charging stations** `api_ninjas_find_ev_charging_stations` | Find electric vehicle charging stations near a specified location | | **Generate lorem ipsum** `api_ninjas_generate_lorem_ipsum` | Generate Lorem Ipsum placeholder text | | **Generate password** `api_ninjas_generate_password` | Generate secure random passwords with configurable length and character types | | **Generate qr code** `api_ninjas_generate_qr_code` | Generate QR code images for encoding data | | **Generate random user** `api_ninjas_generate_random_user` | Generate fake random user profiles with realistic data | ## Example prompts **Analyze Sentiment** > Use API Ninjas to analyze sentiment and walk me through the result in plain English. **Barcode Generate** > Use API Ninjas to barcode generate and walk me through the result in plain English. **Bin Lookup** > Use API Ninjas to bin lookup and walk me through the result in plain English. **Bitcoin** > Use API Ninjas to bitcoin 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 API Ninjas working from chat. | | Manual | ClawLink | |---|---|---| | **Credential handling** | Collect, validate, store, and rotate the API Ninjas API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected API Ninjas 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 API Ninjas. | 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 API Ninjas actions to the runtime in a format your agent can reliably use. | 128 tools for API Ninjas are already exposed through ClawLink, so the agent can read and act from chat immediately. | ## ClawLink vs. Composio Composio also exposes API Ninjas 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 API Ninjas in the browser, and the 128 tools above work from chat. There is no SDK and no config file, and the API Ninjas key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full [Composio alternatives](https://claw-link.dev/hub/composio-alternatives) comparison. ### Hermes paired but still can't use API Ninjas 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 API Ninjas 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 API Ninjas tools API Ninjas 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 API Ninjas 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. ### API Ninjas 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 API Ninjas has the right scopes or account access. A valid key can still be too limited for some reads or writes. ### Is there a Hermes Agent API Ninjas integration? Yes. ClawLink is the fastest way to connect Hermes to API Ninjas: link your API Ninjas account once in the browser and Hermes Agent can call the API Ninjas API through 128 ready-made tools — no custom code or token handling. ### How do I connect API Ninjas 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 API Ninjas in the dashboard and Hermes can use it from the next message — no config files, and the API Ninjas key you paste is stored server-side instead of in your environment. ### How long does it take to connect API Ninjas to Hermes Agent? About two minutes. Sign in, click Connect next to API Ninjas in the dashboard, authenticate, and Hermes Agent can use it from the next chat message. ### Why use ClawLink instead of wiring API Ninjas 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 API Ninjas working from chat. ### Hermes paired but still can't use API Ninjas 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`. ## Related - [Connect GitHub](https://claw-link.dev/hermes/github) — Manage repositories, issues, pull requests, and workflows - [PagerDuty](https://claw-link.dev/hermes/pagerduty) — Manage incidents, on-call schedules, and services - [SafetyCulture tools](https://claw-link.dev/hermes/safetyculture) — SafetyCulture (formerly iAuditor) is a workplace operations platform that enables teams to conduct digital inspections, manage audits, track issues, schedule tasks, and maintain compliance through mobile and web applications.