send21 alternatives

1

Agent402.Tools: pay-per-call web tools

by MikeyPetrillo

A

Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, free via PoW or card credits

2

IronWallet

by ironwallet.io

A

Non-custodial crypto wallet MCP: check balances, sign and send transfers, and swap tokens locally.

3

Easypaydirect

by praveendias1180

B

Read-only MCP server for the Easy Pay Direct (EPD) / NMI-family payment gateway Query API.

4

AurasPay Merchant MCP

by auraspay.com

A

Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.

Pay-per-call LLM chat plus data tools: DNS, crypto, Base gas, Wikipedia. x402 USDC or Lightning.

6

Blockrun

by BlockRunAI

B

Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

8

PipRail

by piprail

B

Budget-bound x402 payment wallet for AI agents — pays HTTP 402 URLs, capped locally. No backend.

9

Churnkey

by churnkey.co

A

Read and manage Churnkey cancel flows, retention metrics, and payment recovery

10

Orla

by orla.finance

A

Personal, family and business books over fiat and crypto. Reads and records; it cannot pay.

11

Invoice Intake (reference)

by justdukkan.com

A

Reference invoice-intake MCP servers: read/draft/commit split, typed errors, approval gate, audit

12

POPCORN MCP

by violetclaire

B

Signed time and SHA-256 witness receipts for agents, with offline verification and x402 payment.

13

Monapay

by monapay.vn

B

MONA Pay for AI agents: create VietQR, check bank transfers, webhooks & HMAC. Vietnam bank API, VND

14

payware

by payware

B

payware A2A payments API for merchants, ISVs and payment institutions

15

RiskState — Crypto Risk Engine

by riskstate.ai

A

Live BTC/ETH risk state: risk policy, market structure and trading playbooks. Keyless free tier.

16

X402 Data Gateway

by epistemedeus

B

Paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.

17

MCP

by taokeh.my

A

Malaysian SME accounting, e-Invoice and payroll for your AI. 64 tools; writes are approved drafts.

18

gate402 merchant checkout

by ogenalabs.com

A

Drop-in x402 checkout for merchants: issue terms, verify payment. $0.01 each.

19

Deposits

by theluckystrike

A

Security and retainer deposits per client: hold, apply to an invoice, refund, statement.

20

Bill Of Sale

by theluckystrike

A

Bills of sale for equipment, vehicles and stock: draft, finalize, print with signature lines.

Authorize x402 payments before signing with request-bound, signed safety decisions.

22

AgentIndex

by cognivis

A

Trust scores and on-chain payment receipts for x402 services.

Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.

24

Coinrebate

by halffee.com

A

Compliance-filtered crypto exchange fee comparison and rebate-link routing for AI agents.