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bitnovo

MCP Bitnovo Pay

Official
by bitnovo

create_payment_onchain

Create a cryptocurrency payment converting a fiat amount to the exact crypto on a chosen network, returning payment details and link for customer to complete.

Instructions

🚨 CRITICAL RULE #1 - EXPIRATION: YOU MUST tell user payment expires in EXACTLY "expires_in_minutes" MINUTES. Convert "expires_at" (UTC) to user's LOCAL TIME ZONE and display in their language. Format: "expires in X minutes (on [date] at [time] [user's timezone])".

💰 CRITICAL RULE #2 - AMOUNT: YOU MUST show "expected_input_amount" with FULL PRECISION (all decimals). Example: "0.43515861 SOL" not "0.44 SOL". This is the EXACT amount customer must send.

🪙 RULE #3 - DISPLAY: Show users ONLY "original_symbol" (BTC, USDC, SOL) and "original_blockchain" (Bitcoin Network, Solana Test Network). NEVER mention internal codes.

🔗 CRITICAL RULE #4 - PAYMENT LINK: ALWAYS display "web_url" as "Enlace de pago:" or "Payment Link:" in user's language. This is the web gateway URL where customers can view and complete the payment.

🎯 WHEN TO USE: Only when user explicitly mentions a cryptocurrency (Bitcoin, BTC, Ethereum, ETH, USDC, Solana, SOL, etc.). Customer MUST pay with that exact crypto.

🌐 NETWORK SELECTION: If crypto has MULTIPLE networks (check network_groups), call list_currencies_catalog first, ASK USER which network. Pass cryptocurrency as "SYMBOL on NETWORK".

EXAMPLES: cryptocurrency="BTC", cryptocurrency="USDC on Ethereum Network", cryptocurrency="SOL on Solana Test Network".

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
amountYesPayment amount in the specified fiat currency (must be positive). This amount will be converted to cryptocurrency at current rates.
cryptocurrencyYesCryptocurrency with network (REQUIRED). Format: "SYMBOL on NETWORK" or just "SYMBOL" if only one network. Examples: "USDC on Ethereum Network", "USDC on Solana Test Network", "BTC" (if only one Bitcoin network exists). Use list_currencies_catalog to see available options. The customer MUST pay in this specific cryptocurrency.
fiatNoISO 4217 currency code (EUR, USD, GBP, etc.). IMPORTANT: Use the EXACT currency the user specified. If user says "100 euros" use EUR. If user says "100 dollars" use USD. Default: EUREUR
notesNoOptional payment description or reference
include_qrNoIf true, includes QR codes in the response (RECOMMENDED: always true for immediate use). If false, generate later with generate_payment_qr.
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so description bears full burden. It discloses critical rules (expiration display, amount precision, link display) and behavior (converts fiat to crypto). It lacks explicit mention of side effects or authentication needs, but overall is highly transparent.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Well-structured with numbered rules and clear sections, but somewhat verbose. The critical info (expiration, amount) is front-loaded. Every sentence serves a purpose, but some redundancy exists (e.g., repeating 'CRITICAL' multiple times).

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 5 params, no output schema, and no annotations, the description covers all necessary context: parameter semantics, usage conditions, expected output (payment link), and interaction with sibling tool list_currencies_catalog. It leaves no key gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, but description adds significant value beyond schema: precision guidance for amount, network selection for cryptocurrency, exact fiat currency usage, and QR code recommendation. This ensures correct parameter usage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it creates on-chain payments for cryptocurrencies, distinguishes from siblings like create_payment_link by specifying when to use (only when crypto is mentioned), and provides specific examples like 'USDC on Ethereum Network'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicit 'WHEN TO USE' and 'NETWORK SELECTION' sections guide the agent on criteria for invocation, when to call list_currencies_catalog, and how to ask the user for network preference, with actionable examples.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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