＋ Add to collection

Install (CLI)

npx skillmds add bankrbot/endaoment

Or Copy and Paste in Your Agent chat

Please install the Agent Skill "bankrbot/endaoment" for me from skillmd.com. A SkillMD skill is a SKILL.md file — plain markdown plus a few companion files — that you save into my skills directory. Use whichever fetch route fits your setup: (1) if you have a terminal, run npx -y skillmds add bankrbot/endaoment; (2) otherwise fetch the file manifest at https://api.skillmd.com/api/skills/bankrbot/endaoment/bundle?format=manifest and download each listed file from its "url" into endaoment/ in your skills directory; (3) if the SkillMD MCP tools are connected, call skillmd_download with slug "bankrbot/endaoment" and save the returned files under endaoment/. Show me the SKILL.md before saving if you'd like me to review it. If your skills directory is read-only (e.g. the Claude desktop app), save the files to a working folder instead and tell me — I'll add them through my app's skills settings.

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endaoment

Name: endaoment
Rating: 4.2 (5 reviews)
Author: BankrBot

bankrbot/endaoment · Agent Skill (multi-file)

by BankrBot · bundle

Published Jul 5, 2026 · Last updated Jul 6, 2026

Donate crypto to 501(c)(3) charities onchain via Endaoment smart contracts, supporting USDC on Base with automatic ETH/token swaps.

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:

./scripts/search.sh "27-1661997"         # EIN lookup (GiveDirectly)
./scripts/search.sh "Red Cross"          # Name search

Donate USDC (Base)

./scripts/donate.sh <ein> <amount_usdc>

Example: Donate $5 USDC to GiveDirectly:

./scripts/donate.sh 27-1661997 5

How It Works

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

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

Popular Charities

Charity	EIN
GiveDirectly	27-1661997
North Shore Animal League America	11-1666852
American Red Cross	53-0196605
Doctors Without Borders	13-3433452
ASPCA	13-1623829

See references/popular-charities.md for more.

Contract Addresses (Base)

Contract	Address
Registry	`0x237b53bcfbd3a114b549dfec96a9856808f45c94`
OrgFundFactory	`0x10fd9348136dcea154f752fe0b6db45fc298a589`
USDC	`0x833589fcd6edb6e08f4c7c32d4f71b54bda02913`

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

---
name: endaoment
description: Donate crypto to 501(c)(3) charities onchain via Endaoment smart contracts, supporting USDC on Base with automatic ETH/token swaps.
---

# 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

| Charity | EIN |
|---------|-----|
| GiveDirectly | 27-1661997 |
| North Shore Animal League America | 11-1666852 |
| American Red Cross | 53-0196605 |
| Doctors Without Borders | 13-3433452 |
| ASPCA | 13-1623829 |

See `references/popular-charities.md` for more.

## Contract Addresses (Base)

| Contract | Address |
|----------|---------|
| Registry | `0x237b53bcfbd3a114b549dfec96a9856808f45c94` |
| OrgFundFactory | `0x10fd9348136dcea154f752fe0b6db45fc298a589` |
| USDC | `0x833589fcd6edb6e08f4c7c32d4f71b54bda02913` |

## 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

Files

This skill is a package of 5 files. Install with the command above, or download the folder.

📄SKILL.md entry
📁references
📄popular-charities.md 1.4 KB
📁scripts
⚙️donate.sh 5.4 KB
⚙️search.sh 2.1 KB
◆catalog.json 858 B

BankrBot/skills/tree/main/endaoment commit · 9fb7bfd44a

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Frequently asked questions

How do I install the endaoment skill?

Run npx skillmds add bankrbot/endaoment in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the endaoment skill do?

Donate crypto to 501(c)(3) charities onchain via Endaoment smart contracts, supporting USDC on Base with automatic ETH/token swaps. It is listed under Finance & Business, Coding & Dev Tools, Crypto & Web3 on SkillMD.

Is endaoment safe to use?

SkillMD's automated safety review verdict for this skill is CAUTION. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with endaoment?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is endaoment free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published endaoment?

BankrBot (@bankrbot) published this skill. Their other Agent Skills are listed on their SkillMD profile.