Sourced*

Migration

Migrate from Speakeasy to Sourced: SDK launch checklist

· 4 min read · Sourced

  • speakeasy
  • migration
  • openapi
  • sdk
  • docs

Speakeasy is a serious SDK platform. It is a fit when you need a broad language matrix, Terraform providers, CLI generation, or a larger AI control-plane workflow. A migration to Sourced makes sense when the work is narrower: one OpenAPI source, TypeScript and Python SDKs, hosted docs review sites, npm/PyPI readiness, and a cleaner "preview first, publish later" workflow.

This is the path to move without surprising customers.

When the migration makes sense

Consider Sourced when:

  • TypeScript and Python are the SDKs that matter right now.
  • You want docs, SDK previews, llms.txt, and agent artifacts reviewed from one dashboard.
  • You want free, no-card previews before paying for production publishing.
  • You want release readiness checks before GitHub, npm, PyPI, or DNS writes.
  • You do not need every language Speakeasy supports on day one.

Stay with Speakeasy if your customer base already depends on Go, Java, C#, PHP, Ruby, Terraform providers, or a mature multi-language release program that Sourced does not yet cover.

Inventory the current Speakeasy setup

Find these files and settings first:

  • canonical openapi.yaml or bundled OpenAPI output
  • Speakeasy generation config such as gen.yaml
  • SDK repositories and package names
  • npm package scope and PyPI project name
  • import paths and auth environment variables in the README
  • release workflows and registry secrets
  • docs domain, routes, redirects, and search index
  • MCP or agent tooling generated from the same API

The dangerous failure is not "the new SDK does not build." That shows up quickly. The dangerous failure is a silent package or import-path change that customers only discover after upgrading.

Hard part: language breadth and release surface

Speakeasy can be attractive because the surface is broad: many SDK languages, Terraform/provider workflows, CLI generation, webhooks, MCP, and release automation. A Sourced migration should be explicit about scope. If the replacement launch is TypeScript, Python, docs, npm, PyPI, and MCP starter output, Sourced is a clean fit. If the current Speakeasy workflow already ships a large language matrix, migrate only after every language has an approved destination.

What Sourced should reproduce

For each public SDK, compare:

  • package name
  • module or import name
  • constructor shape
  • auth setup
  • method names
  • pagination helpers
  • error classes
  • generated README quickstart
  • default base URL
  • retry and timeout behavior

For docs, compare:

  • custom domain and canonical URLs
  • API reference route paths
  • operation headings and anchors
  • code examples
  • auth guide
  • changelog or release notes
  • llms.txt
  • sitemap and indexability

The Sourced migration workflow

  1. Upload the same OpenAPI file to Sourced.
  2. Generate TypeScript and Python SDK previews.
  3. Generate the hosted docs review site.
  4. Compare the SDK public surface against the current published packages.
  5. Review docs routes, examples, and llms.txt.
  6. Prepare npm and PyPI readiness without publishing.
  7. Prepare custom-domain docs without cutting over DNS.
  8. Approve the exact release only after the diff is understood.

As of August 31, 2026, Speakeasy's public pricing is worth checking directly because plan packaging can move. Sourced's free work is meant to cover evaluation: unlimited previews and up to 2 hosted noindex docs review sites. Launch is $99/month per API project for production docs on Sourced-controlled URLs, repo sync, registry readiness/approved publishing, and team review. Scale is $349/month and adds more API projects, more hosted docs sites, more team capacity, and production custom domains.

SEO and redirect checklist

If your Speakeasy docs are already indexed, make the migration search-safe:

  • export the current URL list
  • map old docs routes to new docs routes
  • keep canonical docs on one host
  • avoid indexing temporary preview URLs
  • submit the production sitemap after DNS cutover
  • watch Google Search Console for 404s and duplicate canonicals

Do not let a generated preview domain compete with the real docs domain. Sourced review sites stay noindex until production custom-domain publishing is explicitly approved.

Prompt for an AI agent

Migrate our Speakeasy SDK/docs workflow to Sourced.
Inventory OpenAPI, gen.yaml, SDK repos, npm/PyPI package names, import paths, auth env vars, release workflows, docs routes, custom domain, redirects, and any MCP/agent outputs.
Generate Sourced previews for TypeScript SDK, Python SDK, docs, llms.txt, and release readiness.
Compare method names, constructor shape, auth behavior, errors, README examples, package metadata, docs URLs, and sitemap/indexability.
Do not publish packages, push repos, change DNS, or make preview docs indexable until I approve the exact action.
Return a launch checklist with blockers, diffs, and recommended redirects.

Bottom line

Migrate from Speakeasy to Sourced when you want a lighter OpenAPI-to-docs-and-SDK workflow with reviewable artifacts and a lower starting go-live price for a TypeScript/Python-plus-docs launch, assuming you do not need Speakeasy's broader language/platform surface. Do not migrate if language breadth is the main requirement. The best migration is boring: same OpenAPI intent, same customer-facing contract, fewer moving parts.

Try Sourced free, compare Speakeasy pricing, or read the npm and PyPI publishing guides before switching package workflows.