fix: align client with API docs and rewrite documentation

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,39 @@
+name: Bug report
+description: The client does something wrong or fails to decode an API response.
+labels: [bug]
+body:
+  - type: input
+    id: version
+    attributes:
+      label: Client version
+      description: Output of `go list -m github.com/glassnode/glassnode-api-go-client`, or the commit.
+      placeholder: v0.1.0
+    validations:
+      required: true
+  - type: input
+    id: go
+    attributes:
+      label: Go version
+      placeholder: go1.24.5 linux/amd64
+    validations:
+      required: true
+  - type: textarea
+    id: what
+    attributes:
+      label: What happened
+      description: What you called, what you expected and what you got. Paste the error message; the client never includes credentials in it, but check that your own logs don't either.
+    validations:
+      required: true
+  - type: textarea
+    id: repro
+    attributes:
+      label: How to reproduce
+      description: A short program or the metric path and parameters. For a decoding problem, a few points of the raw JSON response are the most useful thing you can include.
+      render: go
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Checks
+      options:
+        - label: I have removed API keys and tokens from everything pasted above.
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Security issue
+    url: https://github.com/glassnode/glassnode-api-go-client/security/advisories/new
+    about: Report a vulnerability privately instead of opening an issue.
+  - name: Glassnode API documentation
+    url: https://docs.glassnode.com
+    about: Questions about metrics, parameters, credits and plans are answered there; the client only transports what the API returns.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,22 @@
+name: Feature request
+description: Support for an API endpoint, response shape or option the client lacks.
+labels: [enhancement]
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: What you are trying to do
+      description: The API call or workflow, and what makes it hard or impossible with the client today.
+    validations:
+      required: true
+  - type: input
+    id: docs
+    attributes:
+      label: API documentation
+      description: Link to the relevant page on docs.glassnode.com, if any.
+      placeholder: https://docs.glassnode.com/basic-api/...
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed change
+      description: Optional. How you imagine the client API for it, or a workaround you use now with `GetMetric`, `Get` or `Raw`.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,10 @@
+## Summary
+
+<!-- What changes for a user of the client, and why. Link the issue if there is one. -->
+
+## Test plan
+
+<!-- How you verified the change: new or updated tests, a recorded response, a run against the API. -->
+
+- [ ] `go test -race ./...` and `golangci-lint run ./...` pass
+- [ ] CHANGELOG.md updated (for user-visible changes)

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+    groups:
+      actions:
+        patterns: ['*']
+  # The client has no dependencies; this keeps the Go directive current.
+  - package-ecosystem: gomod
+    directories: [/, /examples]
+    schedule:
+      interval: weekly

.github/workflows/ci.yml

@@ -1,9 +1,13 @@
 name: CI
 on:
   push:
+    branches: [main]
   pull_request:
 permissions:
   contents: read
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 jobs:
   test:
     strategy:
@@ -12,25 +16,50 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
         with:
           go-version: ${{ matrix.go }}
-          cache: false
-      - name: Format
-        run: test -z "$(gofmt -l .)"
+          cache: false # no dependencies to cache
       - name: Check module files
         run: go mod tidy -diff
-      - name: Vet
-        run: go vet ./...
       - name: Test with race detector
         run: go test -race ./...
       - name: Check example module files
         working-directory: examples
         run: go mod tidy -diff
-      - name: Vet examples
-        working-directory: examples
-        run: go vet ./...
       - name: Build examples
         working-directory: examples
         run: go build ./...
+
+  lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
+        with:
+          go-version: stable
+          cache: false
+      - uses: golangci/golangci-lint-action@ba0d7d2ec06a0ea1cb5fa41b2e4a3ab91d21278a # v9.3.0
+        with:
+          version: v2.14
+      - name: Lint examples
+        uses: golangci/golangci-lint-action@ba0d7d2ec06a0ea1cb5fa41b2e4a3ab91d21278a # v9.3.0
+        with:
+          version: v2.14
+          working-directory: examples
+          # The first step already installed this version; skip its cache setup.
+          install-mode: none
+
+  vulncheck:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
+        with:
+          go-version: stable
+          cache: false
+      - name: govulncheck
+        run: go run golang.org/x/vuln/cmd/govulncheck@latest ./...

.github/workflows/release.yml

@@ -0,0 +1,30 @@
+name: Release
+on:
+  push:
+    tags: ['v*.*.*']
+permissions:
+  contents: write
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
+        with:
+          go-version: stable
+          cache: false
+      - name: Test
+        run: go test -race ./...
+      - name: Check that the changelog mentions this version
+        run: grep -q "^## ${GITHUB_REF_NAME}" CHANGELOG.md
+      - name: Create GitHub release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          # Release notes are the changelog section for this version.
+          awk -v tag="$GITHUB_REF_NAME" '
+            /^## / { printing = ($2 == tag) ; next }
+            printing { print }
+          ' CHANGELOG.md > notes.md
+          gh release create "$GITHUB_REF_NAME" --title "$GITHUB_REF_NAME" --notes-file notes.md --verify-tag

.golangci.yml

@@ -0,0 +1,39 @@
+version: "2"
+
+linters:
+  default: standard
+  enable:
+    - bodyclose
+    - copyloopvar
+    - errorlint
+    - gocritic
+    - gosec
+    - misspell
+    - nilerr
+    - noctx
+    - revive
+    - unconvert
+    - unparam
+  settings:
+    gosec:
+      excludes:
+        # Retry jitter does not need cryptographic randomness.
+        - G404
+    errorlint:
+      # errors.Is on io.EOF and context errors is idiomatic for sentinel errors.
+      comparison: false
+    revive:
+      rules:
+        - name: exported
+          arguments: ["checkPrivateReceivers", "disableStutteringCheck"]
+  exclusions:
+    rules:
+      - path: _test\.go
+        linters: [gosec, noctx, errcheck, unparam]
+      - path: examples/
+        linters: [gosec]
+
+formatters:
+  enable:
+    - gofmt
+    - goimports

CHANGELOG.md

@@ -1,28 +1,24 @@
 # Changelog
 
-## v0.1.0 — 2026-10-01
+## v0.1.0 — 2026-10-08
 
-Initial private SDK release. One dependency-free root `glassnode` package, with
-typed metrics, metadata and usage endpoints, context cancellation, configurable
-HTTP transport and bounded retries. Runnable examples are a separate module and
-excluded from the SDK distribution.
+Initial public release.
 
-Changes following the Fable review:
-
-- Preserve metric `parameters_defaults` from recorded API responses.
-- Include redacted diagnostic causes in decode and transport errors, preserving
-  the original error chain for `errors.Is` and `errors.As`.
-- Add `TokenSource`, `TokenSourceFunc`, `WithTokenSource` and `AuthError` for
-  application-owned OAuth refresh. Tokens are obtained per HTTP attempt and
-  redacted per call, including tokens used on earlier retries.
-- Reject conflicting authentication, invalid credential whitespace/control
-  characters and OAuth combined with query API-key authentication. Previously,
-  bearer tokens silently took precedence over a configured API key.
-- Make explicit `WithTimeout` override a supplied HTTP client's timeout in
-  either option order.
-- Extract JSON API error messages and bound detail after redaction.
-- Add recorded API contract coverage and tests for token-source concurrency,
-  cancellation, failures and redaction, interrupted reads, per-attempt timeouts,
-  HTTP-date Retry-After and malformed metadata/usage responses.
-
-OAuth login and token storage remain application-owned. x402 is deferred.
+- Metric time series: scalar (`GetTimeSeries`), object (`GetObjectTimeSeries`),
+  bulk (`GetBulkMetric`) and custom shapes (`GetMetric`). Point-in-time metrics
+  expose `ComputedAt`; bulk entries keep every selector in `Params`.
+- Asset and metric metadata, metric lag statistics, and lists of metric tags,
+  asset tags, categories, blockchains, exchanges, networks and miners.
+- API credit usage (`GetAPIUsage`).
+- CSV downloads of a metric to an `io.Writer` (`GetMetricCSV`).
+- Generic `Get` and `Raw` for endpoints without a dedicated method.
+- Authentication with an API key (header or query) or an existing OAuth access
+  token, fixed or from a `TokenSource`; a `TokenRefresher` can replace a token
+  the API rejected with `401`.
+- Context cancellation, a per-attempt timeout and retries with jittered
+  backoff that honour `Retry-After` and `x-rate-limit-reset`, with the wait
+  exposed as `APIError.RetryAfter`.
+- Optional response size limit (`WithMaxResponseBytes`).
+- Typed errors with credentials redacted from messages; redirects are never
+  followed.
+- No dependencies outside the standard library.

CODE_OF_CONDUCT.md

@@ -0,0 +1,85 @@
+
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone, regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, caste, color, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes, and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the overall community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of acceptable behavior and will take appropriate and fair corrective action in response to any behavior that they deem inappropriate, threatening, offensive, or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, and will communicate reasons for moderation decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when an individual is officially representing the community in public spaces. Examples of representing our community include using an official e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement at the maintainers listed in [CODEOWNERS](CODEOWNERS), by opening a private security advisory on GitHub or by contacting any of them directly. All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing clarity around the nature of the violation and an explanation of why the behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, for a specified period of time. This includes avoiding interactions in community spaces as well as external channels like social media. Violating these terms may lead to a temporary or permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public communication with the community for a specified period of time. No public or private interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, is allowed during this period. Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community standards, including sustained inappropriate behavior, harassment of an individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 2.1, available at [https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+
+For answers to common questions about this code of conduct, see the FAQ at [https://www.contributor-covenant.org/faq][FAQ]. Translations are available at [https://www.contributor-covenant.org/translations][translations].
+
+[homepage]: https://www.contributor-covenant.org
+[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
+[Mozilla CoC]: https://github.com/mozilla/diversity
+[FAQ]: https://www.contributor-covenant.org/faq
+[translations]: https://www.contributor-covenant.org/translations
+