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swagger-spec.json
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swagger-spec.json
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{
"openapi": "3.0.0",
"info": {
"title": "Boltz API",
"version": "3.5.0"
},
"paths": {
"/chain/fees": {
"get": {
"description": "Fee estimations for all supported chains",
"tags": [
"Chain"
],
"responses": {
"200": {
"description": "Object of currency of chain -> fee estimation",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"type": "number",
"description": "Fee estimation in sat/vbyte or GWEI"
}
},
"examples": {
"json": {
"value": "{\"BTC\":19,\"L-BTC\":0.11}"
}
}
}
}
}
}
}
},
"/chain/heights": {
"get": {
"description": "Block heights for all supported chains",
"tags": [
"Chain"
],
"responses": {
"200": {
"description": "Object of currency of chain -> block height",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"type": "number",
"description": "Block height of the chain"
}
},
"examples": {
"json": {
"value": "{\"BTC\":830311,\"L-BTC\":2725579}"
}
}
}
}
}
}
}
},
"/chain/contracts": {
"get": {
"tags": [
"Chain"
],
"description": "Get the network information and contract addresses for all supported EVM chains",
"responses": {
"200": {
"description": "Network details and contract addresses on the chain",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"$ref": "#/components/schemas/Contracts"
}
},
"examples": {
"json": {
"value": "{\"rsk\":{\"network\":{\"chainId\":31337},\"tokens\":{\"USDT\":\"0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0\"},\"swapContracts\":{\"EtherSwap\":\"0x5FbDB2315678afecb367f032d93F642f64180aa3\",\"ERC20Swap\":\"0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512\"}}}"
}
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/chain/{currency}/fee": {
"get": {
"description": "Fee estimations for a chain",
"tags": [
"Chain"
],
"parameters": [
{
"in": "path",
"name": "currency",
"required": true,
"schema": {
"type": "string"
},
"description": "Currency of the chain to get a fee estimation for"
}
],
"responses": {
"200": {
"description": "Object containing the fee estimation",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"fee": {
"type": "number",
"required": true,
"description": "Fee estimation in sat/vbyte or GWEI"
}
}
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/chain/{currency}/height": {
"get": {
"description": "Block height for a chain",
"tags": [
"Chain"
],
"parameters": [
{
"in": "path",
"name": "currency",
"required": true,
"schema": {
"type": "string"
},
"description": "Currency of the chain to get the block height for"
}
],
"responses": {
"200": {
"description": "Object containing the block height",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"height": {
"type": "number",
"required": true,
"description": "Block height of the chain"
}
}
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/chain/{currency}/transaction/{id}": {
"get": {
"tags": [
"Chain"
],
"description": "Fetch a raw transaction by its id",
"parameters": [
{
"in": "path",
"name": "currency",
"required": true,
"schema": {
"type": "string"
},
"description": "Currency of the chain to query for"
},
{
"in": "path",
"name": "id",
"required": true,
"schema": {
"type": "string"
},
"description": "Id of the transaction to query"
}
],
"responses": {
"200": {
"description": "Raw transaction",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"hex": {
"type": "string",
"required": true,
"description": "The transaction encoded as HEX"
}
}
}
}
}
},
"400": {
"description": "Error that caused the query for the transaction to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/chain/{currency}/transaction": {
"post": {
"tags": [
"Chain"
],
"description": "Broadcast a transaction",
"parameters": [
{
"in": "path",
"name": "currency",
"required": true,
"schema": {
"type": "string"
},
"description": "Currency of the chain to broadcast on"
}
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"hex": {
"type": "string",
"required": true,
"description": "The transaction to broadcast as raw HEX"
}
}
}
}
}
},
"responses": {
"201": {
"description": "ID of the broadcast transaction",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"id": {
"type": "string",
"required": true,
"description": "ID of the broadcast transaction"
}
}
}
}
}
},
"400": {
"description": "Error that caused the broadcast of the transaction to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/chain/{currency}/contracts": {
"get": {
"tags": [
"Chain"
],
"description": "Get the network information and contract addresses for a supported EVM chains",
"parameters": [
{
"in": "path",
"name": "currency",
"required": true,
"schema": {
"type": "string"
},
"description": "Currency of the chain to query for"
}
],
"responses": {
"200": {
"description": "Raw transaction",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Contracts"
},
"examples": {
"json": {
"value": "{\"network\":{\"chainId\":31337},\"tokens\":{\"USDT\":\"0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0\"},\"swapContracts\":{\"EtherSwap\":\"0x5FbDB2315678afecb367f032d93F642f64180aa3\",\"ERC20Swap\":\"0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512\"}}"
}
}
}
}
},
"400": {
"description": "Error that caused the query for the transaction to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
},
"404": {
"description": "Error when the currency is not on an EVM chain",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/version": {
"get": {
"description": "Version of the backend",
"tags": [
"Info"
],
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"version": {
"type": "string",
"required": true
}
}
}
}
}
}
}
}
},
"/infos": {
"get": {
"description": "Information about the configuration of the backend",
"tags": [
"Info"
],
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
}
}
},
"/warnings": {
"get": {
"description": "Warnings about the configuration of the backend",
"tags": [
"Info"
],
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
}
}
},
"/nodes": {
"get": {
"description": "Information about the Lightning nodes the backend is connected to",
"tags": [
"Nodes"
],
"responses": {
"200": {
"description": "Lightning node information",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"type": "object",
"additionalProperties": {
"$ref": "#/components/schemas/NodeInfo"
}
}
},
"examples": {
"json": {
"value": "{\"BTC\":{\"LND\":{\"publicKey\":\"026165850492521f4ac8abd9bd8088123446d126f648ca35e60f88177dc149ceb2\",\"uris\":[\"026165850492521f4ac8abd9bd8088123446d126f648ca35e60f88177dc149ceb2@45.86.229.190:9735\",\"026165850492521f4ac8abd9bd8088123446d126f648ca35e60f88177dc149ceb2@d7kak4gpnbamm3b4ufq54aatgm3alhx3jwmu6kyy2bgjaauinkipz3id.onion:9735\"]},\"CLN\":{\"publicKey\":\"02d96eadea3d780104449aca5c93461ce67c1564e2e1d73225fa67dd3b997a6018\",\"uris\":[\"02d96eadea3d780104449aca5c93461ce67c1564e2e1d73225fa67dd3b997a6018@45.86.229.190:9736\",\"02d96eadea3d780104449aca5c93461ce67c1564e2e1d73225fa67dd3b997a6018@2a10:1fc0:3::270:a9dc:9736\",\"02d96eadea3d780104449aca5c93461ce67c1564e2e1d73225fa67dd3b997a6018@oo5tkbbpgnqjopdjxepyfavx3yemtylgzul67s7zzzxfeeqpde6yr7yd.onion:9736\"]}}}"
}
}
}
}
}
}
}
},
"/nodes/stats": {
"get": {
"description": "Statistics about the Lightning nodes the backend is connected to",
"tags": [
"Nodes"
],
"responses": {
"200": {
"description": "Statistics about Lightning nodes",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"type": "object",
"properties": {
"total": {
"$ref": "#/components/schemas/NodeStats"
}
},
"additionalProperties": {
"$ref": "#/components/schemas/NodeStats"
}
}
},
"examples": {
"json": {
"value": "{\"BTC\":{\"LND\":{\"capacity\":5806395450,\"channels\":1052,\"peers\":2199,\"oldestChannel\":1553900632},\"CLN\":{\"capacity\":1062157049,\"channels\":79,\"peers\":124,\"oldestChannel\":1692910360},\"total\":{\"capacity\":6868552499,\"channels\":1131,\"peers\":2323,\"oldestChannel\":1553900632}}}"
}
}
}
}
}
}
}
},
"/referral": {
"get": {
"description": "Referral ID for the used API keys",
"tags": [
"Referral"
],
"parameters": [
{
"in": "header",
"name": "TS",
"required": true,
"schema": {
"type": "string"
},
"description": "Current UNIX timestamp when the request is sent"
},
{
"in": "header",
"name": "API-KEY",
"required": true,
"schema": {
"type": "string"
},
"description": "Your API key"
},
{
"in": "header",
"name": "API-HMAC",
"required": true,
"schema": {
"type": "string"
},
"description": "HMAC-SHA256 with your API-Secret as key of the TS + HTTP method (all uppercase) + the HTTP path"
}
],
"responses": {
"200": {
"description": "The referral ID for your API-KEY to be used when creating Swaps",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"id": {
"type": "string",
"required": true,
"description": "The referral ID for your API-KEY"
}
}
}
}
}
},
"401": {
"description": "Unauthorized in case of an unknown API-KEY or bad HMAC",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/referral/fees": {
"get": {
"description": "Referral fees collected for an ID",
"tags": [
"Referral"
],
"parameters": [
{
"in": "header",
"name": "TS",
"required": true,
"schema": {
"type": "string"
},
"description": "Current UNIX timestamp when the request is sent"
},
{
"in": "header",
"name": "API-KEY",
"required": true,
"schema": {
"type": "string"
},
"description": "Your API key"
},
{
"in": "header",
"name": "API-HMAC",
"required": true,
"schema": {
"type": "string"
},
"description": "HMAC-SHA256 with your API-Secret as key of the TS + HTTP method (all uppercase) + the HTTP path"
}
],
"responses": {
"200": {
"description": "The referral ID for your API-KEY to be used when creating Swaps",
"content": {
"application/json": {
"schema": {
"type": "object",
"description": "Year",
"additionalProperties": {
"type": "object",
"description": "Month",
"additionalProperties": {
"type": "object",
"description": "Fees collected in that month",
"additionalProperties": {
"type": "string",
"description": "Fees collected in that currency in satoshis"
}
}
}
},
"examples": {
"json": {
"value": "{\"2024\":{\"1\":{\"BTC\":307}}}"
}
}
}
}
},
"401": {
"description": "Unauthorized in case of an unknown API-KEY or bad HMAC",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/referral/stats": {
"get": {
"description": "Statistics for Swaps created with an referral ID",
"tags": [
"Referral"
],
"parameters": [
{
"in": "header",
"name": "TS",
"required": true,
"schema": {
"type": "string"
},
"description": "Current UNIX timestamp when the request is sent"
},
{
"in": "header",
"name": "API-KEY",
"required": true,
"schema": {
"type": "string"
},
"description": "Your API key"
},
{
"in": "header",
"name": "API-HMAC",
"required": true,
"schema": {
"type": "string"
},
"description": "HMAC-SHA256 with your API-Secret as key of the TS + HTTP method (all uppercase) + the HTTP path"
}
],
"responses": {
"200": {
"description": "Swap statistics",
"content": {
"application/json": {
"schema": {
"type": "object",
"description": "Year",
"additionalProperties": {
"type": "object",
"description": "Month",
"additionalProperties": {
"type": "object",
"description": "Swap statistics for that month",
"properties": {
"volume": {
"description": "Swap volume",
"properties": {
"total": {
"type": "string",
"description": "Volume across all pairs in BTC"
}
},
"additionalProperties": {
"type": "string",
"description": "Volume in that pair in BTC"
}
},
"trades": {
"type": "object",
"description": "Swap counts",
"properties": {
"total": {
"type": "integer",
"description": "Swap count across all pairs"
}
},
"additionalProperties": {
"type": "integer",
"description": "Swap count for that pair"
}
},
"failureRates": {
"type": "object",
"description": "Swap failure rates for each type",
"properties": {
"swaps": {
"type": "number",
"description": "Submarine Swap failure rate"
},
"reverseSwaps": {
"type": "number",
"description": "Reverse Swap failure rate"
}
}
}
}
}
}
},
"examples": {
"json": {
"value": "{\"2024\":{\"1\":{\"volume\":{\"total\":\"0.00321844\",\"L-BTC/BTC\":\"0.00321844\"},\"trades\":{\"total\":3,\"L-BTC/BTC\":3},\"failureRates\":{\"swaps\": 0.12, \"reverseSwaps\":0}}}}"
}
}
}
}
},
"401": {
"description": "Unauthorized in case of an unknown API-KEY or bad HMAC",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/swap/submarine": {
"get": {
"description": "Possible pairs for Submarine Swaps",
"tags": [
"Submarine"
],
"responses": {
"200": {
"description": "Dictionary of the from -> to currencies that can be used in a Submarine Swap",
"content": {
"application/json": {
"schema": {
"type": "object",
"additionalProperties": {
"type": "object",
"additionalProperties": {
"$ref": "#/components/schemas/SubmarinePair"
}
}
},
"examples": {
"json": {
"value": "{\"BTC\":{\"BTC\":{\"hash\":\"90ab5c8e6ece5db52173e9423a0dd3071f5894dc8d35ed592a439ccabcdebbd5\",\"rate\":1,\"limits\":{\"maximal\":25000000,\"minimal\":50000,\"maximalZeroConf\":0},\"fees\":{\"percentage\":0.1,\"minerFees\":4379}}},\"L-BTC\":{\"BTC\":{\"hash\":\"b53c0ac3da051a78f67f6dd25f2ab0858492dc6881015b236d554227c85fda7d\",\"rate\":1,\"limits\":{\"maximal\":25000000,\"minimal\":1000,\"maximalZeroConf\":100000},\"fees\":{\"percentage\":0.1,\"minerFees\":148}}}}"
}
}
}
}
}
}
},
"post": {
"description": "Create a new Submarine Swap from onchain to lightning",
"tags": [
"Submarine"
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/SubmarineRequest"
}
}
}
},
"responses": {
"201": {
"description": "The created Submarine Swap",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/SubmarineResponse"
}
}
}
},
"400": {
"description": "Error that caused the Submarine Swap creation to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/swap/submarine/{id}/invoice": {
"post": {
"tags": [
"Submarine"
],
"description": "Set the invoice for a Submarine Swap",
"parameters": [
{
"in": "path",
"name": "id",
"required": true,
"schema": {
"type": "string"
},
"description": "ID of the Submarine Swap"
}
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"invoice": {
"type": "string",
"required": true,
"description": "BOLT11 invoice that should be paid. The preimage hash has to match the one specified when creating the swap"
},
"pairHash": {
"type": "string"
}
}
}
}
}
},
"responses": {
"200": {
"description": "Information about the onchain part of the Submarine Swap",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"bip21": {
"type": "string",
"required": true,
"description": "BIP21 for the onchain payment request"
},
"expectedAmount": {
"type": "number",
"required": true,
"description": "Amount that is expected to be sent to the onchain HTLC address in satoshis"
},
"acceptZeroConf": {
"type": "boolean",
"required": true,
"description": "Whether 0-conf will be accepted assuming the transaction does not signal RBF and has a reasonably high fee"
}
}
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/swap/submarine/{id}/invoice/amount": {
"get": {
"tags": [
"Submarine"
],
"description": "Get the expected amount of the invoice that should be set after the Swap was created with a preimage hash and an onchain transaction was sent",
"parameters": [
{
"in": "path",
"name": "id",
"required": true,
"schema": {
"type": "string"
},
"description": "ID of the Submarine Swap"
}
],
"responses": {
"200": {
"description": "Expected amount of the invoice",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"invoiceAmount": {
"type": "number",
"required": true,
"description": "Expected amount of the invoice"
}
}
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ErrorResponse"
}
}
}
}
}
}
},
"/swap/submarine/{id}/transaction": {
"get": {
"tags": [
"Submarine"
],
"description": "Get the lockup transaction of a Submarine Swap",
"parameters": [
{
"in": "path",
"name": "id",
"required": true,
"schema": {
"type": "string"
},
"description": "ID of the Submarine Swap"
}
],
"responses": {
"200": {
"description": "The lockup transaction of the Submarine Swap and accompanying information",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/SubmarineTransaction"
}
}
}
},
"400": {
"description": "Error that caused the request to fail",
"content": {
"application/json": {
"schema": {