send21 alternatives

1

Coinbase Commerce

by codespar

B

MCP server for Coinbase Commerce — crypto merchant payments (BTC/ETH/USDC); settle crypto or fiat

2

Blockrun

by BlockRunAI

B

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

3

Agent402.Tools: pay-per-call web tools

by MikeyPetrillo

A

Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, or free via proof-of-work

4

three.ws Tutor

by nirholas

A

Read a Pay-As-You-Learn tutoring session's itemized tab and close it for an attested invoice.

5

three.ws Agent Payments

by nirholas

B

Governed x402 payment sessions: pay any endpoint with budget, allowlist & per-tx caps, no key.

6

Yolfi Payments MCP

by yolfinance

A

Let AI agents add Yolfi crypto checkout, paylinks, webhooks, and status checks.

7

AlgoVault — Crypto Quant Trade Calls

by AlgoVaultFi

A

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

8

Hive Intelligence MCP

by hiveintelligence.xyz

C

Evidence-backed crypto due diligence with sources, freshness, and a runtime receipt on every call.

9

Pyth Pro MCP Server

by pyth-network

A

Real-time and historical price feeds for 500+ crypto, equities, FX, and commodities assets.

10

Transak

by codespar

B

MCP server for Transak — fiat-to-crypto on/off-ramp across ~170 countries (Partner API)

11

Sato Hub: Build Onchain & Crypto Agents

by satohub.ai

B

Build any crypto agent: x402, ERC-8004, wallets. Does a server take your key? Hosted? Maintained?

12

Bykaranteli

by bykaranteli.com

A

Crypto derivatives data: funding, OI, liquidations, options, ETF flows. Free account key required.

13

PayRam

by payram.com

B

Install, configure, operate and integrate self-hosted PayRam crypto payment gateways.

14

Ibanforge

by cammac-creator

B

Check the bank behind an IBAN before you pay: bank-code check, BIC with source, bank-level sanctions

15

Trading Signals

by roman-rr

A

Live AI crypto trading signals for agents. Try 3 signals without a key; sign in from your agent.

16

Alpha Vantage

by alphavantage

A

Real-time financial market data: stocks, forex, crypto, commodities, and economic indicators

17

TickDB Market Data

by TickDB

B

Real-time & historical market data: forex, stocks, crypto, indices, metals, K-line, quotes

18

CoinRithm Agent Trading

by CoinRithm

A

Keyless prediction-market data across 12 venues plus paper-trading of crypto spot, futures, and PM.

19

Fortrip

by FortripEngineering

A

Search hotels worldwide, compare live room rates, and create booking payment links.

20

Elfa

by elfa.ai

B

Crypto social intelligence from X and Telegram, plus the Elfa Auto condition engine

21

Shumi

by shumi.ai

A

Crypto market intelligence: prices, funding rates, narratives, regime, and delta-neutral research.

22

T-Bank MCP

by icyberdeveloper

A

T-Bank (Т-Банк) mobile banking: accounts, cards, transfers, bill pay, grocery, tickets, travel

23

Crypto Trends MCP

by trendsmcp.ai

A

Crypto token and narrative trend volume over time, with growth signals. Free key at trendsmcp.ai

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