Onramper (BYOK)

Onramper (BYOK) — connector documentation

• MCP endpoint: https://byok-onramper.connectorbay.com/mcp
• REST API: POST https://byok-onramper.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-onramper.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own Onramper Onramper API key (pk_prod_...), sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-onramper.connectorbay.com/health · Tool schemas: https://byok-onramper.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-onramper · agent@connectorbay.com

What Onramper (BYOK) is for

Onramper (BYOK) lets an AI assistant read your own Onramper data through the Onramper API with a key you supply (Onramper API key (pk_prod_...)). Read-only: 7 tools (list_supported_currencies, list_payment_types, list_payment_types_for_pair, get_defaults, list_onramps_for_pair, list_onramp_metadata, get_buy_quotes). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.onramper.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Onramper. Onramper and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

• "Which cryptocurrencies and fiat currencies can I buy through Onramper in Germany?"
• "Which payment methods does Onramper offer in Greece?"
• "What are the limits for buying BTC with EUR by bank transfer through Onramper?"
• "What does Onramper recommend as the default purchase in the US?"
• "Which providers let me buy ETH with USD in the US through Onramper?"
• "Which on-ramp providers are part of Onramper?"

What it does

• list_supported_currencies: List the cryptocurrencies (id, code, network, contract address, chain id) and fiat currencies Onramper supports, filtered by transaction type and country. The crypto list is long.
• list_payment_types: List the payment methods (card, bank transfer, Apple Pay, SEPA and more) available for a transaction type and country.
• list_payment_types_for_pair: List payment methods supported for one source currency and one destination currency, with the min and max amount each provider accepts.
• get_defaults: Get the default and recommended currency pair, amount, payment method and provider Onramper suggests per country.
• list_onramps_for_pair: List the on-ramp providers that support a source and destination currency in a country, with their payment methods and the recommended one.
• list_onramp_metadata: List every on-ramp or off-ramp provider Onramper aggregates with id, display name and icon links.
• get_buy_quotes: Get price quotes from all available providers for buying a crypto with a fiat amount, optionally for one payment method. No transaction is created.

BYOK key

You bring your own Onramper Onramper API key (pk_prod_...) (https://docs.onramper.com/docs/getting-started). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to api.onramper.com over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Notices

Reference data and price quotes only: no checkout, transaction or wallet endpoints. Answers are wrapped as {message: ...}.

Data sources

• https://docs.onramper.com/reference/get_supported (the API this connector calls, with a BYOK key)

Live from the Onramper API (api.onramper.com) with a BYOK key; documentation: https://docs.onramper.com/reference/get_supported. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Onramper. Onramper and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Onramper account.

Built for: Worldwide. Languages: English.

Onramper (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Onramper (BYOK) is. Onramper (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Onramper data: Look up fiat-to-crypto on-ramp coverage, payment methods, provider availability and buy quotes from the Onramper aggregator with your own API key. You bring your own Onramper Onramper API key (pk_prod_...); the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Onramper call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to api.onramper.com, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Onramper rejects it, we say so without repeating it.

What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What Onramper receives. The request we make on your behalf, including the key and the arguments, under Onramper's own terms and privacy policy. Onramper acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Onramper gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.

What we do not do. We do not build a profile, sell or share personal information, or keep your Onramper data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.

Sub-processors. Onramper (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).

Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at Onramper at any time to end all access.

Children. Onramper (BYOK) is a general-audience service operated by the adult using the assistant, under Onramper's own age rules.

Changes. We will post changes here with a new effective date.

Onramper (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Onramper (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Onramper (BYOK) provides: Look up fiat-to-crypto on-ramp coverage, payment methods, provider availability and buy quotes from the Onramper aggregator with your own API key. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
2. Your own key, your own account. You must use your own Onramper credentials and only access data you are allowed to access. Onramper's terms apply to your use of Onramper; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
3. Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Onramper. Onramper and its logos are trademarks of their owners and are used only to say which service the connector works with.
4. No advice, no guarantees. Output is the data Onramper returns, lightly trimmed; it may be incomplete, delayed or changed by Onramper. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Onramper account.
6. Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent Onramper's controls, or to attack any system.
7. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; Onramper may change or end its API at any time.
8. Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
9. Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your Onramper key.
10. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action Onramper takes on your account. Our total liability is limited to US $100.
11. Governing law. California law; venue in San Mateo County, California.
12. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-onramper

Onramper (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://byok-onramper.connectorbay.com/mcp
• REST API: https://byok-onramper.connectorbay.com/openapi.json
• Live status: https://byok-onramper.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Onramper (BYOK) never asks for them.