Epsilon

Overview

Epsilon offers limit, stop-loss, DCA and trailing orders for memecoins and RWAs on Robinhood Chain, executed from the user's own wallet (https://www.epsilon.exchange). The developer platform documents a REST API at https://api.epsilon.exchange/v1, the SDKs @epsilon-exchange/sdk (npm) and epsilon-exchange (PyPI), a CLI, webhooks and an MCP package @epsilon-exchange/mcp with a hosted endpoint (https://developers.epsilon.exchange). Orders are EIP-712 messages signed locally. API keys (eps_…) were issued through a concierge during early access, with self-serve issuance described as planned. The MIT-licensed plugin repo bundles a 12-tool MCP server and two agent skills, with a per-order USD cap and a confirmation gate on by default (https://github.com/alienbase-xyz/epsilon-plugin).

Tool inventory — 15 tools, probed live 2026-09-23

• error_catalog — Machine-readable catalog of every error code the Epsilon API returns, with meanings and retry guidance.
• get_example — Full source code of one Epsilon integration example, by id from list_examples. No API key required.
• get_market_overview — One-call market snapshot of Epsilon (Robinhood Chain DEX): top tokens by 30-day volume, 24h volume aggregates, and engine-wide order/fill stats. Good first call for market context.
• get_order_status — Look up an Epsilon order by hash: status (pending/active/filled/cancelled), parameters, and its fills.
• get_orderbook — Open (pending/active) limit orders on both sides of a token pair, largest first.
• get_quote — Best executable quote for swapping tokenIn → tokenOut on Epsilon (Robinhood Chain, id 4663). Amounts are RAW token units — scale by the token's decimals first. This only quotes; it never executes.
• get_route — Full routing breakdown for a swap: best venue split, expected and minimum output, price impact (ppm), and the feeLegs a signed order must embed. Read-only. Amounts are RAW token units.
• list_examples — List runnable Epsilon integration examples (Python cron DCA, LangChain tools, Vercel AI SDK tools, Telegram bot). Fetch full source with get_example. No API key required.
• list_orders — List Epsilon orders by maker wallet, status, and/or type — the portfolio view. Newest first.
• market_stats — Engine-wide Epsilon stats: order counts by status, fill counts, and volume aggregates.
• order_preflight — Check whether a limit/DCA order for this pair and size would be executable: oracle support, liquidity, minimum size. Run this before signing an order. Amounts are RAW token units.
• recent_swaps — Most recent swaps executed through Epsilon, optionally filtered to one wallet. Amounts are RAW token units.
• search_docs — Search the Epsilon developer documentation (API, auth, order signing, webhooks, rev-share, SDKs, MCP). Returns the most relevant doc sections. No API key required.
• search_tokens — Resolve a token symbol or name to its address and decimals — call this FIRST when the user names a token; every other tool takes addresses. volume30dUsd disambiguates same-symbol tokens: the real one
• token_volume — Per-token and total swap volume over a window (1h, 24h, 7d, 30d, all).

Answers a handshake

yes · 2026-09-23

Answers a call

the server answered get_market_overview with an error (epsilon API 401 [KEY_MISSING]: pass your API key as X-API-Key: eps_… — create one at POST /v1/developer/keys (developers.epsilon.exchange))

Live probe verifies the interface responds — not what the tools do, their safety, or their output quality. The call is one read-only tool named by this server's own list (list_/get_/search_, no mutating verb anywhere in the name, no required arguments and none that look like a key, an address or an amount), asked once a day with no arguments. Not asked is not a failure.

Where Epsilon fits

Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets, What Are Onchain Agents?