open-payments-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| OPEN_PAYMENTS_KEY_ID | Yes | Key identifier for the private key. | |
| OPEN_PAYMENTS_SESSION_FILE | No | Path to session file for persistence (optional). | |
| OPEN_PAYMENTS_CALLBACK_PORT | No | Callback port for grants (optional). | |
| OPEN_PAYMENTS_CLIENT_ADDRESS | Yes | The client address URL for Open Payments. | |
| OPEN_PAYMENTS_MAX_DEBIT_AMOUNT | No | Maximum debit amount in smallest units (optional). | |
| OPEN_PAYMENTS_PRIVATE_KEY_PATH | Yes | Absolute path to the private key file. |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| get_wallet_addressA | Resolve an Open Payments wallet address and return sanitized wallet details. |
| request_grantB | Request an Open Payments grant. Outgoing payment grants are made interactive and return an approval URL. |
| continue_grantB | Continue an interactive Open Payments grant after the user approves it. |
| create_incoming_paymentA | Create an incoming payment using a finalized incoming-payment grant session. |
| get_incoming_paymentC | Read incoming payment details using a finalized incoming-payment read grant. |
| create_quoteC | Create a quote using a finalized quote grant session. |
| get_quoteB | Read quote details using a finalized quote read grant. |
| create_outgoing_paymentB | Create an outgoing payment using a finalized outgoing-payment grant session. |
| get_outgoing_paymentA | Read outgoing payment details using a finalized outgoing-payment read grant. |
| execute_peer_to_peer_paymentB | Orchestrate a full peer-to-peer payment flow: incoming payment, quote, interactive outgoing grant, and outgoing payment (blocks until approval). |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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