x402-listing-doctor.x402-listing-doctor-workers.workers.dev
x402-listing-doctor.x402-listing-doctor-workers.workers.dev
IRS Form 990 snapshot for one US nonprofit from ProPublica Nonprofit Explorer: name, city/state, NTEE code, and the last filings with tax period, total revenue, total expenses, total assets and the PDF link.
- Category
- Service
- Networks
- Base
- Starting price
- $0.01
- Paid calls, 30 days
- 5
- Payers, 30 days
- 1
How to pay
Call an endpoint, read the price in the 402 answer, and pay from your own wallet with any x402 client on Base. The payment goes straight to the provider: Autonomo lists this API but isn't part of the payment. See The x402 directory.
Paid endpoints
5 endpoints, sorted by usage. Prices are per request.
| Endpoint | Price | Network | Facilitator | Calls / 30d |
|---|---|---|---|---|
GET/v1/base-token-check Read-only due-diligence for an ERC-20 on Base: name, symbol, decimals, total supply, owner(), contract code size, EIP-1967 proxy implementation and plain heuristics. No trading advice. | $0.02 | Base | Coinbase CDP | 1 |
GET/v1/base-tx-explain Explain one Base mainnet transaction from public RPC data: status, from/to, method selector, fee in ETH, block time and every ERC-20 Transfer with token, amount and decimals. | $0.01 | Base | Coinbase CDP | 1 |
GET/v1/federal-register-search Latest 20 Federal Register documents matching a term (optionally one agency): title, type (rule, proposed rule, notice), agencies, publication date, document number and official URL, newest first. | $0.01 | Base | Coinbase CDP | 1 |
GET/v1/nonprofit-990 IRS Form 990 snapshot for one US nonprofit from ProPublica Nonprofit Explorer: name, city/state, NTEE code, and the last filings with tax period, total revenue, total expenses, total assets and the PDF link. | $0.02 | Base | Coinbase CDP | 1 |
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