
Langfuse
Helicone AI
LangSmith
LangChain
Braintrust.dev
Openlayer
Portkey
LastMile AI
0xProcessing
BitPay
Coinbase
CoinGate
CoinPayments
NOWPayments
Cryptomus
CoinsPaid
Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data. By integrating seamlessly into existing workflows, Langfuse streamlines the process of monitoring, debugging, and optimizing LLM applications. Our platform's robust documentation and active community support make it easy for developers to leverage Langfuse for enhancing their LLM projects efficiently. Whether you're troubleshooting interactions or iterating on new features, Langfuse is committed to simplifying your LLM development journey.
Payment solutions include:
โข Payment forms with or without fixed amount
โข Static Wallets
โข Recurring payments
โข Web3 payments
โข Invoicing
โข Mass payouts
Transparent economics. Only the processing fee applies. There are no setup fee, monthly or hidden charges.
Integration methods:
โข API for full control
โข No-code payment links
Proven reliability. Recognized as โBest Crypto Processing of the Yearโ at Blockchain Life (2024, 2025) and SiGMA (Eurasia 2025, Central Europe 2025, Eurasia 2026), as well as โCrypto Payment Solution of the Yearโ at SiGMA Europe 2023. Ranked TOP 1 Bitcoin payment solution by Bitcoin.com.
Integrate once and start accepting crypto in minutes. Deliver a frictionless payment experience for your users while generating chargeback-free revenue and staying focused on growth.
Langfuse
0xProcessingWe were looking for a way to accept crypto payments with no changes to the rest of our workflow. After reviewing payment gateways, 0xProcessing was deemed more feasible than others. The setup was simple and once it ran, never required day-to-day attention. The ability to create payment requests is hassle-free and clear for daily transaction uses; hence, there is no confusion.
Following numerous payment drops and unexpected compliance holds with BitPay, we switched our primary checkout flow to 0xProcessing. Our global clients rely on cross-border technology, services, and products. We needed a payment gateway that is used to handling payment processing and wonโt raise flags about something this usual. Actually the onboarding as merchant was quite easy. The API integration into Vettrackโs custom billing stack has taken the dev team the best part of about two afternoons and the docs donโt leave much to the imagination.
To run its day-to-day operations, Stable is used. We rely heavily on this payment links feature, which is completely automated. The VRCS feature converts incoming volatile assets to stablecoins automatically. The latter aspect alone has given adequate protection to our margins during the dips which get tied up in the afternoon. The 18 supported networks includes nearly everything our clients use. The processing time in so minimal, and we have still yet to have our first chargeback or false fraud flag since we started using it. The interface is effective but has glitches.
Since we don't usually process such payments, we werenโt looking for one that was equipped with many sophisticated tools. The first things were reliability and setup that shouldnโt be hard to get used to.
After looking at a number of options Fireblocks included we found 0xProcessing easier to work with. The on-boarding process was simple and the documentation covered the majority of our needs. It has been doing its job with no additional work since implementation.
Based on our record, Langfuse seems to be more popular. It has been mentiond 28 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
In this project we will build a Python banking assistant agent using Strands Agents and make it observable and continuously evaluated using Langfuse โ step by step. - Source: dev.to / 20 days ago
Langfuse is the open-source standard for LLM observability. It traces every LLM interaction โ prompts, completions, latency, token usage, cost โ and provides the tooling to debug, evaluate, and optimize LLM applications in production. Think of it as "Datadog for LLM calls" with a focus on prompt engineering workflows. - Source: dev.to / about 1 month ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / about 2 months ago
Gateway or proxy attribution. A reverse proxy in front of the model-provider API records the request, computes the cost, and exposes per-customer breakdowns. Open-source options include Helicone, LiteLLM, Langfuse, and OpenLLMetry. Hosted equivalents serve as the AI cost observability layer for teams that want centralized visibility: LangSmith, Datadog LLM Observability, Arize Phoenix. Adds a network hop.... - Source: dev.to / about 2 months ago
Same approach works with Langfuse, Phoenix, Braintrust, or your existing OTel pipeline โ the metadata.userId pattern is the universal part. - Source: dev.to / 2 months ago
Helicone AI - Open-source LLM Observability for Developers
BitPay - Bitcoin payment gateway. Enterprise-grade solutions, from the pioneer of bitcoin payments.
LangSmith - Build and deploy LLM applications with confidence
Coinbase - Bitcoin, safe and easy.
LangChain - Framework for building applications with LLMs through composability
CoinGate - CoinGate is a payment gateway for Bitcoin, XRP, Litecoin, Ethereum and 50 other cryptocurrencies.