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 skills add BankrBot/claude-plugins --skill bankr-api-basicsgit clone --depth 1 https://github.com/BankrBot/claude-pluginsWrote 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/bankrbot/claude-plugins/bankr-api-basics)<a href="https://agentmods.dev/skills/bankrbot/claude-plugins/bankr-api-basics"><img src="https://agentmods.dev/badge/skills/bankrbot/claude-plugins/bankr-api-basics/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/bankrbot/claude-plugins/bankr-api-basics"><img src="https://agentmods.dev/badge/skills/bankrbot/claude-plugins/bankr-api-basics.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00066 | $0.01833 |
| Opus 5 | $0.00033 | $0.00916 |
| Sonnet 5 | $0.00013 | $0.00367 |
| Haiku 4.5 | $0.00007 | $0.00183 |
Grade A, and why
Bankr Dev - API Basics 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 9d 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 — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bankr Agent API Essentials
When answering questions about the Bankr API:
- Explain the asynchronous job pattern (submit-poll-complete)
- Reference the endpoint documentation and TypeScript examples below
- For detailed response structures, consult
references/job-response-schema.md - Point developers to working examples in
examples/directory
The Bankr Agent API enables programmatic access to crypto trading, market analysis, and prediction markets through a simple asynchronous job pattern.
Core Concept: Asynchronous Job Pattern
All Bankr operations follow a submit-poll-complete pattern:
- Submit a natural language prompt to start a job
- Poll the job status every 2 seconds
- Receive results when status is terminal (completed/failed/cancelled)
This pattern handles operations that may take 30 seconds to 2+ minutes (trades, complex analysis).
API Endpoints
Base URL
https://api.bankr.bot
Authentication
All requests require the x-api-key header:
x-api-key: bk_your_api_key_here
The API key is tied to a specific user's Bankr account and wallet.
Endpoint 1: Submit Prompt
POST /agent/prompt
Content-Type: application/json
{
"prompt": "Buy $50 of ETH on Base"
}
Response:
{
"success": true,
"jobId": "job_abc123",
"status": "pending"
}
Code example:
async function submitPrompt(prompt: string): Promise<{ jobId: string }> {
const response = await fetch(`${API_URL}/agent/prompt`, {
method: "POST",
headers: {
"x-api-key": API_KEY,
"Content-Type": "application/json",
},
body: JSON.stringify({ prompt }),
});
const data = await response.json();
if (!data.success) throw new Error(data.error || "Failed to submit");
return { jobId: data.jobId };
}
Endpoint 2: Get Job Status
GET /agent/job/{jobId}
Response:
{
"success": true,
"jobId": "job_abc123",
"status": "completed",
"prompt": "What is the price of ETH?",
"response": "Ethereum (ETH) is currently trading at $3,245.67...",
"transactions": [],
"statusUpdates": [
{ "message": "Fetching price data...", "timestamp": "2024-01-15T10:00:02Z" }
],
"createdAt": "2024-01-15T10:00:00Z",
"completedAt": "2024-01-15T10:00:05Z",
"processingTime": 5000
}
What ships with it
3 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.
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.
- 9d ago First seen · 267 lines · 66 tokens per session scan A 4ef37db5056d
Bankr Dev - API Basics is a skill published in the GitHub repository BankrBot/claude-plugins (85 stars, last pushed 5mo ago), licensed MIT. It adds 66 tokens to every session and 1,833 once invoked, about $0.0003 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 2026-08-30.
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