chore(deps): bump x402-foundation/x402/go to /v2 (v2.16.0)

flows/clients/mcp-paid-client.go

@@ -31,10 +31,10 @@ import (
 	"time"
 
 	mcpsdk "github.com/modelcontextprotocol/go-sdk/mcp"
-	x402 "github.com/x402-foundation/x402/go"
-	x402mcp "github.com/x402-foundation/x402/go/mcp"
-	exactclient "github.com/x402-foundation/x402/go/mechanisms/evm/exact/client"
-	evmsigner "github.com/x402-foundation/x402/go/signers/evm"
+	x402 "github.com/x402-foundation/x402/go/v2"
+	x402mcp "github.com/x402-foundation/x402/go/v2/mcp"
+	exactclient "github.com/x402-foundation/x402/go/v2/mechanisms/evm/exact/client"
+	evmsigner "github.com/x402-foundation/x402/go/v2/signers/evm"
 )
 
 func main() {

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/cucumber/godog v0.15.1
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0
 	github.com/dustinkirkland/golang-petname v0.0.0-20240428194347-eebcea082ee0
-	github.com/ethereum/go-ethereum v1.16.7
+	github.com/ethereum/go-ethereum v1.17.2
 	github.com/google/go-sev-guest v0.14.1
 	github.com/google/go-tdx-guest v0.3.1
 	github.com/google/uuid v1.6.0
@@ -22,10 +22,9 @@ require (
 	github.com/shopspring/decimal v1.3.1
 	github.com/urfave/cli/v2 v2.27.5
 	github.com/urfave/cli/v3 v3.6.2
-	github.com/x402-foundation/x402/go v0.0.0-20260529172747-45d81d46e5bd
+	github.com/x402-foundation/x402/go/v2 v2.16.0
 	golang.org/x/crypto v0.46.0
-	golang.org/x/net v0.48.0
-	golang.org/x/sys v0.39.0
+	golang.org/x/sys v0.40.0
 	golang.org/x/term v0.38.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.34.1
@@ -48,19 +47,18 @@ require (
 	github.com/charmbracelet/x/term v0.2.1 // indirect
 	github.com/consensys/gnark-crypto v0.19.2 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
-	github.com/crate-crypto/go-eth-kzg v1.4.0 // indirect
-	github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a // indirect
+	github.com/crate-crypto/go-eth-kzg v1.5.0 // indirect
 	github.com/cucumber/gherkin/go/v26 v26.2.0 // indirect
 	github.com/cucumber/messages/go/v21 v21.0.1 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/deckarep/golang-set/v2 v2.8.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
-	github.com/ethereum/c-kzg-4844/v2 v2.1.5 // indirect
-	github.com/ethereum/go-verkle v0.2.2 // indirect
+	github.com/ethereum/c-kzg-4844/v2 v2.1.6 // indirect
 	github.com/fatih/color v1.18.0 // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
@@ -93,7 +91,6 @@ require (
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/rogpeppe/go-internal v1.14.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible // indirect
 	github.com/spf13/cobra v1.9.1 // indirect
@@ -105,11 +102,16 @@ require (
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	github.com/xrash/smetrics v0.0.0-20240521201337-686a1a2994c1 // indirect
 	github.com/yosida95/uritemplate/v3 v3.0.2 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel v1.40.0 // indirect
+	go.opentelemetry.io/otel/metric v1.40.0 // indirect
+	go.opentelemetry.io/otel/trace v1.40.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
 	golang.org/x/oauth2 v0.32.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/text v0.32.0 // indirect

go.sum

@@ -46,10 +46,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/cpuguy83/go-md2man/v2 v2.0.7 h1:zbFlGlXEAKlwXpmvle3d8Oe3YnkKIK4xSRTd3sHPnBo=
 github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
-github.com/crate-crypto/go-eth-kzg v1.4.0 h1:WzDGjHk4gFg6YzV0rJOAsTK4z3Qkz5jd4RE3DAvPFkg=
-github.com/crate-crypto/go-eth-kzg v1.4.0/go.mod h1:J9/u5sWfznSObptgfa92Jq8rTswn6ahQWEuiLHOjCUI=
-github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a h1:W8mUrRp6NOVl3J+MYp5kPMoUZPp7aOYHtaua31lwRHg=
-github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a/go.mod h1:sTwzHBvIzm2RfVCGNEBZgRyjwK40bVoun3ZnGOCafNM=
+github.com/crate-crypto/go-eth-kzg v1.5.0 h1:FYRiJMJG2iv+2Dy3fi14SVGjcPteZ5HAAUe4YWlJygc=
+github.com/crate-crypto/go-eth-kzg v1.5.0/go.mod h1:J9/u5sWfznSObptgfa92Jq8rTswn6ahQWEuiLHOjCUI=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/cucumber/gherkin/go/v26 v26.2.0 h1:EgIjePLWiPeslwIWmNQ3XHcypPsWAHoMCz/YEBKP4GI=
 github.com/cucumber/gherkin/go/v26 v26.2.0/go.mod h1:t2GAPnB8maCT4lkHL99BDCVNzCh1d7dBhCLt150Nr/0=
@@ -80,14 +78,12 @@ github.com/emicklei/dot v1.6.2 h1:08GN+DD79cy/tzN6uLCT84+2Wk9u+wvqP+Hkx/dIR8A=
 github.com/emicklei/dot v1.6.2/go.mod h1:DeV7GvQtIw4h2u73RKBkkFdvVAz0D9fzeJrgPW6gy/s=
 github.com/emicklei/go-restful/v3 v3.12.2 h1:DhwDP0vY3k8ZzE0RunuJy8GhNpPL6zqLkDf9B/a0/xU=
 github.com/emicklei/go-restful/v3 v3.12.2/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
-github.com/ethereum/c-kzg-4844/v2 v2.1.5 h1:aVtoLK5xwJ6c5RiqO8g8ptJ5KU+2Hdquf6G3aXiHh5s=
-github.com/ethereum/c-kzg-4844/v2 v2.1.5/go.mod h1:u59hRTTah4Co6i9fDWtiCjTrblJv0UwsqZKCc0GfgUs=
+github.com/ethereum/c-kzg-4844/v2 v2.1.6 h1:xQymkKCT5E2Jiaoqf3v4wsNgjZLY0lRSkZn27fRjSls=
+github.com/ethereum/c-kzg-4844/v2 v2.1.6/go.mod h1:8HMkUZ5JRv4hpw/XUrYWSQNAUzhHMg2UDb/U+5m+XNw=
 github.com/ethereum/go-bigmodexpfix v0.0.0-20250911101455-f9e208c548ab h1:rvv6MJhy07IMfEKuARQ9TKojGqLVNxQajaXEp/BoqSk=
 github.com/ethereum/go-bigmodexpfix v0.0.0-20250911101455-f9e208c548ab/go.mod h1:IuLm4IsPipXKF7CW5Lzf68PIbZ5yl7FFd74l/E0o9A8=
-github.com/ethereum/go-ethereum v1.16.7 h1:qeM4TvbrWK0UC0tgkZ7NiRsmBGwsjqc64BHo20U59UQ=
-github.com/ethereum/go-ethereum v1.16.7/go.mod h1:Fs6QebQbavneQTYcA39PEKv2+zIjX7rPUZ14DER46wk=
-github.com/ethereum/go-verkle v0.2.2 h1:I2W0WjnrFUIzzVPwm8ykY+7pL2d4VhlsePn4j7cnFk8=
-github.com/ethereum/go-verkle v0.2.2/go.mod h1:M3b90YRnzqKyyzBEWJGqj8Qff4IDeXnzFw0P9bFw3uk=
+github.com/ethereum/go-ethereum v1.17.2 h1:ag6geu0kn8Hv5FLKTpH+Hm2DHD+iuFtuqKxEuwUsDOI=
+github.com/ethereum/go-ethereum v1.17.2/go.mod h1:KHcRXfGOUfUmKg51IhQ0IowiqZ6PqZf08CMtk0g5K1o=
 github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
 github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
 github.com/ferranbt/fastssz v0.1.4 h1:OCDB+dYDEQDvAgtAGnTSidK1Pe2tW3nFV40XyMkTeDY=
@@ -101,8 +97,11 @@ github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff h1:tY80oXqG
 github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff/go.mod h1:x7DCsMOv1taUwEWCzT4cmDeAkigA5/QCwUodaVOe8Ww=
 github.com/getsentry/sentry-go v0.27.0 h1:Pv98CIbtB3LkMWmXi4Joa5OOcwbmnX88sF5qbK3r3Ps=
 github.com/getsentry/sentry-go v0.27.0/go.mod h1:lc76E2QywIyW8WuBnwl8Lc4bkmQH4+w1gwTf25trprY=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
@@ -154,6 +153,10 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
 github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
+github.com/grafana/pyroscope-go v1.2.7 h1:VWBBlqxjyR0Cwk2W6UrE8CdcdD80GOFNutj0Kb1T8ac=
+github.com/grafana/pyroscope-go v1.2.7/go.mod h1:o/bpSLiJYYP6HQtvcoVKiE9s5RiNgjYTj1DhiddP2Pc=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.9 h1:c1Us8i6eSmkW+Ez05d3co8kasnuOY813tbMN8i/a3Og=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.9/go.mod h1:2+l7K7twW49Ct4wFluZD3tZ6e0SjanjcUUBPVD/UuGU=
 github.com/graph-gophers/graphql-go v1.3.0 h1:Eb9x/q6MFpCLz7jBCiP/WTxjSDrYLR1QY41SORZyNJ0=
 github.com/graph-gophers/graphql-go v1.3.0/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpxn4uE=
@@ -242,8 +245,6 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
-github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
-github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
 github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/ginkgo/v2 v2.21.0 h1:7rg/4f3rB88pb5obDgNZrNHrQ4e6WpjonchcpuBRnZM=
@@ -324,8 +325,8 @@ github.com/urfave/cli/v2 v2.27.5 h1:WoHEJLdsXr6dDWoJgMq/CboDmyY/8HMMH1fTECbih+w=
 github.com/urfave/cli/v2 v2.27.5/go.mod h1:3Sevf16NykTbInEnD0yKkjDAeZDS0A6bzhBH5hrMvTQ=
 github.com/urfave/cli/v3 v3.6.2 h1:lQuqiPrZ1cIz8hz+HcrG0TNZFxU70dPZ3Yl+pSrH9A8=
 github.com/urfave/cli/v3 v3.6.2/go.mod h1:ysVLtOEmg2tOy6PknnYVhDoouyC/6N42TMeoMzskhso=
-github.com/x402-foundation/x402/go v0.0.0-20260529172747-45d81d46e5bd h1:Bb+VbLsDEQ7g69MZNfUkOva2qKuB5TCSgGXXOPTB0Qw=
-github.com/x402-foundation/x402/go v0.0.0-20260529172747-45d81d46e5bd/go.mod h1:58Cdk20g83eAI3QvxAiQJze7qWUgkjCj9uZlPb4M4HM=
+github.com/x402-foundation/x402/go/v2 v2.16.0 h1:GBZapvJHUZu3ljo0T6Wx68sCgCQA7jQtXeK471Y6EWg=
+github.com/x402-foundation/x402/go/v2 v2.16.0/go.mod h1:OAsOuB+FYhCoKzijOGZ+PcJk9g4RBfCJvpABGxi+NcE=
 github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f h1:J9EGpcZtP0E/raorCMxlFGSTBrsSlaDGf3jU/qvAE2c=
@@ -342,6 +343,16 @@ github.com/yosida95/uritemplate/v3 v3.0.2 h1:Ed3Oyj9yrmi9087+NczuL5BwkIc4wvTb5zI
 github.com/yosida95/uritemplate/v3 v3.0.2/go.mod h1:ILOh0sOhIJR3+L/8afwt/kE++YT040gmv5BQTMR2HP4=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/otel v1.40.0 h1:oA5YeOcpRTXq6NN7frwmwFR0Cn3RhTVZvXsP4duvCms=
+go.opentelemetry.io/otel v1.40.0/go.mod h1:IMb+uXZUKkMXdPddhwAHm6UfOwJyh4ct1ybIlV14J0g=
+go.opentelemetry.io/otel/metric v1.40.0 h1:rcZe317KPftE2rstWIBitCdVp89A2HqjkxR3c11+p9g=
+go.opentelemetry.io/otel/metric v1.40.0/go.mod h1:ib/crwQH7N3r5kfiBZQbwrTge743UDc7DTFVZrrXnqc=
+go.opentelemetry.io/otel/sdk v1.40.0 h1:KHW/jUzgo6wsPh9At46+h4upjtccTmuZCFAc9OJ71f8=
+go.opentelemetry.io/otel/sdk v1.40.0/go.mod h1:Ph7EFdYvxq72Y8Li9q8KebuYUr2KoeyHx0DRMKrYBUE=
+go.opentelemetry.io/otel/trace v1.40.0 h1:WA4etStDttCSYuhwvEa8OP8I5EWu24lkOzp+ZYblVjw=
+go.opentelemetry.io/otel/trace v1.40.0/go.mod h1:zeAhriXecNGP/s2SEG3+Y8X9ujcJOTqQ5RgdEJcawiA=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
@@ -385,8 +396,8 @@ golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
 golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

internal/inference/gateway.go

@@ -16,7 +16,7 @@ import (
 	"github.com/ObolNetwork/obol-stack/internal/enclave"
 	"github.com/ObolNetwork/obol-stack/internal/tee"
 	x402pkg "github.com/ObolNetwork/obol-stack/internal/x402"
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // GatewayConfig holds configuration for the x402 inference gateway.

internal/inference/gateway_test.go

@@ -11,7 +11,7 @@ import (
 	"testing"
 
 	x402pkg "github.com/ObolNetwork/obol-stack/internal/x402"
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // ── Mock facilitator ──────────────────────────────────────────────────────────

internal/serviceoffercontroller/openapi_components.go

@@ -7,7 +7,7 @@ package serviceoffercontroller
 // Two principles:
 //
 //  1. x402 components mirror the canonical Coinbase types/v2 wire format
-//     (github.com/x402-foundation/x402/go/types). Field names, optionality, and
+//     (github.com/x402-foundation/x402/go/v2/types). Field names, optionality, and
 //     X402Version=2 must stay in sync with that upstream — internal/x402
 //     re-exports the same structs and lockstep is enforced by 402 smoke
 //     tests, not by a generator. Update both together when the spec moves.

internal/x402/agent_extras_test.go

@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 func TestMergeAgentExtras_Noop_NonAgentRule(t *testing.T) {

internal/x402/buyer/config.go

@@ -15,7 +15,7 @@ import (
 	"path/filepath"
 	"strings"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // Config is the top-level sidecar configuration, loaded from a JSON file

internal/x402/buyer/encoding.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // EncodePayment converts a v2 PaymentPayload to a base64-encoded JSON string

internal/x402/buyer/encoding_test.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 func TestEncodePayment_RoundTrip(t *testing.T) {

internal/x402/buyer/proxy.go

@@ -14,7 +14,7 @@ import (
 	"sync"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // userAgent is sent on every outbound HTTP request the sidecar makes to an

internal/x402/buyer/signer.go

@@ -10,7 +10,7 @@ import (
 	"sync"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // authExpirySafetyMarginSec is how far before its on-chain deadline an auth is

internal/x402/buyer/signer_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 func TestPreSignedSigner_CanSign(t *testing.T) {

internal/x402/buyer/types.go

@@ -6,7 +6,7 @@ import (
 	"math/big"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // Signer produces x402 v2 payment payloads for a specific network and scheme.

internal/x402/chains.go

@@ -5,7 +5,7 @@ import (
 	"math/big"
 	"strings"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // ChainInfo holds chain-specific configuration for x402 payment gating.
@@ -52,7 +52,7 @@ type AssetInfo struct {
 	EIP2612GasSponsoring bool
 }
 
-// Chain constants — USDC addresses verified against x402-foundation/x402/go (formerly coinbase/x402) v2.7.0
+// Chain constants — USDC addresses verified against x402-foundation/x402/go/v2 (formerly coinbase/x402) v2.7.0
 // mechanisms/evm/constants.go and on-chain contract deployments.
 var (
 	ChainBaseMainnet = ChainInfo{

internal/x402/forwardauth.go

@@ -13,7 +13,7 @@ import (
 	"net/http"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // ForwardAuthConfig configures the ForwardAuth x402 middleware.

internal/x402/forwardauth_test.go

@@ -13,7 +13,7 @@ import (
 	"testing"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // mockFacilitator returns an httptest.Server that accepts /verify and /settle.

internal/x402/paymentrequired.go

@@ -11,7 +11,7 @@ import (
 	"regexp"
 	"strings"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // displayTokenRe is the allowed charset for ServiceOffer-sourced strings

internal/x402/paymentrequired_test.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 const (

internal/x402/verifier.go

@@ -13,7 +13,7 @@ import (
 	"sync/atomic"
 
 	"github.com/prometheus/client_golang/prometheus"
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 )
 
 // Verifier is a ForwardAuth-compatible HTTP handler that enforces x402

internal/x402/verifier_test.go

@@ -13,7 +13,7 @@ import (
 	"testing"
 	"time"
 
-	x402types "github.com/x402-foundation/x402/go/types"
+	x402types "github.com/x402-foundation/x402/go/v2/types"
 	dto "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
 )

internal/x402mcp/server.go

@@ -1,6 +1,6 @@
 // Package x402mcp serves a local x402-paid MCP (Model Context Protocol) server.
 //
-// It wraps MCP tools with x402 payment using x402-foundation/x402/go/mcp and the
+// It wraps MCP tools with x402 payment using x402-foundation/x402/go/v2/mcp and the
 // official modelcontextprotocol/go-sdk, gated by an x402 facilitator. Buyers
 // (e.g. hermes-agent's pay_mcp plugin) settle in-band via the MCP request
 // _meta["x402/payment"] field, per specs/transports-v2/mcp.md. Verify ->
@@ -29,10 +29,10 @@ import (
 	"time"
 
 	mcpsdk "github.com/modelcontextprotocol/go-sdk/mcp"
-	x402 "github.com/x402-foundation/x402/go"
-	x402http "github.com/x402-foundation/x402/go/http"
-	mcp402 "github.com/x402-foundation/x402/go/mcp"
-	evmserver "github.com/x402-foundation/x402/go/mechanisms/evm/exact/server"
+	x402 "github.com/x402-foundation/x402/go/v2"
+	x402http "github.com/x402-foundation/x402/go/v2/http"
+	mcp402 "github.com/x402-foundation/x402/go/v2/mcp"
+	evmserver "github.com/x402-foundation/x402/go/v2/mechanisms/evm/exact/server"
 )
 
 // caip2 maps the CLI chain name to its CAIP-2 network id. Mirrors the EVM