eskyee/agentbot-opensource/endaoment

Claude Code and agent skill by eskyee/agentbot-opensource

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Donate to charities onchain via Endaoment. Use when the user wants to donate crypto to charity, make a charitable contribution, give to nonprofits, support a cause, or donate to a 501(c)(3). Supports Base, Ethereum, and Optimism. Handles USDC donations directly or swaps ETH/tokens to USDC automatically.

Install

npx vskill@latest install eskyee/agentbot-opensource/endaoment

SKILL.md

Endaoment Charity Donations

Donate to 501(c)(3) nonprofits onchain via Endaoment's smart contracts.

Quick Start

Find a Charity

Search by name or EIN:

bash
./scripts/search.sh "27-1661997"         # EIN lookup (GiveDirectly)
./scripts/search.sh "Red Cross"          # Name search
Donate USDC (Base)
bash
./scripts/donate.sh <ein> <amount_usdc>

Example: Donate $5 USDC to GiveDirectly:

bash
./scripts/donate.sh 27-1661997 5

How It Works

The donate script uses Bankr's arbitrary transaction feature to:

  1. Approve USDC to the Endaoment OrgFundFactory
  2. Call deployOrgAndDonate(orgId, amount) which:
  • Deploys the charity's entity contract on Base (if not already deployed)
  • Donates the specified USDC amount

Popular Charities

CharityEIN
GiveDirectly27-1661997
North Shore Animal League America11-1666852
American Red Cross53-0196605
Doctors Without Borders13-3433452
ASPCA13-1623829

See references/popular-charities.md for more.

Contract Addresses (Base)

ContractAddress
Registry0x237b53bcfbd3a114b549dfec96a9856808f45c94
OrgFundFactory0x10fd9348136dcea154f752fe0b6db45fc298a589
USDC0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

Fees

  • Org donations: 1.5% fee (e.g., $100 → $1.50 fee, $98.50 to charity)
  • Fund donations: 0.05-0.50% tiered

Requirements

  • Bankr skill with API key configured
  • USDC balance on Base
  • ETH on Base for gas (Bankr covers this)

Technical Details

Function Selectors
  • approve(address,uint256): 0x095ea7b3
  • deployOrgAndDonate(bytes32,uint256): 0xdb9e30cc
OrgId Encoding

The EIN (e.g., "11-1666852") is encoded as bytes32:

"11-1666852" → 0x31312d3136363638353200000000000000000000000000000000000000000000

Notes

  • All donations are tax-deductible (US 501(c)(3) orgs)
  • Donations are permissionless — anyone can donate
  • Uses Bankr arbitrary transactions for contract interaction
  • Works on Base; other chains require different addresses

Security

  • Security scanPassed, 95 of 100Pattern checks on the skill's files.
  • Model reviewPassed

See the full security report

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Source

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