b-open-io/estimate-transaction-fee
skills/estimate-transaction-fee/SKILL.md
This skill should be used when the user asks to "estimate transaction fee", "calculate BSV fee", "fee per byte", "transaction cost", or needs to estimate fees based on transaction size and current rates.
$ install --global
skillsauthnpx skillsauth add b-open-io/bsv-skills estimate-transaction-feeInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Jul 11, 2026, 3:35 AM154.8s3 files scanned
SKILL.md
- name:
- estimate-transaction-fee
- description:
- This skill should be used when the user asks to "estimate transaction fee", "calculate BSV fee", "fee per byte", "transaction cost", or needs to estimate fees based on transaction size and current rates.
- allowed-tools:
- Bash(bun:*)
Estimate Transaction Fee
Estimate fees for BSV transactions based on size and fee rates.
When to Use
- Estimate fee before sending a transaction
- Calculate size of a transaction
- Understand fee structure
Usage
# Estimate by size
bun run skills/estimate-transaction-fee/scripts/estimate.ts --size 226
# Estimate from raw tx hex
bun run skills/estimate-transaction-fee/scripts/estimate.ts --tx <hex>
# Estimate by inputs/outputs
bun run skills/estimate-transaction-fee/scripts/estimate.ts --inputs 2 --outputs 3
# Custom fee rate
bun run skills/estimate-transaction-fee/scripts/estimate.ts --size 226 --rate 2
# JSON output
bun run skills/estimate-transaction-fee/scripts/estimate.ts --size 226 --json
# Show help
bun run skills/estimate-transaction-fee/scripts/estimate.ts --help
Size Estimation
P2PKH transaction size formula:
- Base overhead: 10 bytes
- Per input: ~148 bytes
- Per output: ~34 bytes
Example: 1 input + 2 outputs = 10 + 148 + 68 = 226 bytes
Output Examples
Default output:
Fee Estimation
==============
Size: 226 bytes
Rate: 1 sat/byte
Fee: 226 satoshis (0.00000226 BSV)
With --inputs/--outputs (shows breakdown):
Fee Estimation
==============
Size: 226 bytes
Rate: 1 sat/byte
Fee: 226 satoshis (0.00000226 BSV)
Breakdown:
- Inputs (1): ~148 bytes
- Outputs (2): ~68 bytes
- Overhead: ~10 bytes
JSON output (--json):
{
"size": 226,
"rate": 1,
"fee": 226,
"feeBsv": 0.00000226
}
Status
Complete
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