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Head to head · Secrets store · October 2026 research run

Doppler vs Pulumi ESC

Doppler and Pulumi ESC score within a point of each other on agent readiness, 71.4 (BB) and 71.1 (BB). Pulumi ESC leads on agent ergonomics, payments & pricing and maintenance & community. Both do secrets store.

DopplerDoppler · HTTP API BB71.4/100#105 of 629 Pulumi ESCPulumi Corporation · HTTP API BB71.1/100#114 of 629

Which one, for what

Doppler BB

Good for Teams that want a hosted store and a one-line doppler run wrapper for agents, with config-scoped read-only tokens.

Ahead on

  • Reliability, 90 against 60
  • Transparency & trust, 74 against 65

Also in its favour

  • Runs on your own machine

Watch for

Dynamic secrets and on-prem are Enterprise only, and Developer has no service accounts

Pulumi ESC BB

Good for Teams already on Pulumi, or anyone who wants one place that composes static secrets, other vaults and short-lived cloud credentials, and agents that need to start with no signup.

Ahead on

  • Agent ergonomics, 75 against 59
  • Payments & pricing, 55 against 25
  • Maintenance & community, 82 against 76

Watch for

Audit logs, custom roles, team tokens, approvals and customer-managed keys need Pro ($400 a month) or Enterprise

Score by category

CategoryWeight this runDopplerPulumi ESCEdge
Reliability16%209060Doppler +30
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28182Pulumi ESC +1
Agent ergonomics13%16.25975Pulumi ESC +16
Security & auth14%17.58279Doppler +3
Payments & pricing10%12.52555Pulumi ESC +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87682Pulumi ESC +6
Transparency & trust7%8.87465Doppler +9
Negative events≤1500
Total71.4 · BB71.1 · BB

Facts side by side

FactDopplerPulumi ESC
KindHTTP APIHTTP API
VendorDopplerPulumi Corporation
Hosted endpointhttps://api.doppler.com/v3https://api.pulumi.com
TransportsHTTP, stdioHTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceApache-2.0 (MCP server and CLI), closed platformProprietary service under Pulumi's Terms & Conditions. The Pulumi CLI, the ESC evaluator and the ESC SDKs are Apache-2.0
Read-only variant documentedyesyes
llms.txtyesyes
Last release2026-09-212026-10-07
Terms last updated2026-02-08no date given
Privacy policy last updated2026-09-17no date given
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity8 stars, 3.3k npm/wk21k npm/wk, 54k PyPI/wk
Agent reviews3/5 (2)none

Verdicts

Doppler

Service tokens bound to one config, read-only by default, with --max-age expiry. Dynamic secrets and on-prem are Enterprise only, and Developer has no service accounts.

Pulumi ESC

An agent can start without a signup, because the Pulumi CLI creates a free ephemeral account that includes ESC, and the REST API has a public OpenAPI document. Audit logs, custom roles and approvals need the Pro edition at $400 a month, and no API rate limit was found in the reviewed documentation.

Before you call either

Doppler

  1. Create a service token scoped to one config and read-only, then start the agent with doppler run --token $DOPPLER_TOKEN -- <cmd> so values never touch disk
  2. Start the MCP server with --read-only and --config as well as a scoped token; the server can't tell a token's permissions and would otherwise list write tools that fail
  3. Call /v3/configs/config/secrets/names when you only need names, and secrets/download?format=json for every value in one call
  4. On a 429 wait for the retry-after seconds; secret reads have their own limit, 120 a minute on Developer
  5. Run doppler configure flags disable analytics on build agents if you don't want CLI command usage reported

Pulumi ESC

  1. Use pulumi env, not esc. The standalone CLI stopped at v0.26.0 and gets no security fixes
  2. Read one value with pulumi env open <org>/<project>/<env> <property path> so the whole environment doesn't enter context
  3. Run tools with pulumi env run <env> -- <cmd>, which filters secret values from the command's output unless -i is set
  4. Set PULUMI_ACCESS_TOKEN for the SDKs. From 0.14.0 they no longer read the CLI login on disk
  5. Send Authorization: token <token> and Accept: application/vnd.pulumi+8 on REST calls, and expect 409 when an environment changed since it was read
  6. Relay the claim link an agent account prints. The account goes read-only after 72 hours and locks after 30 days unclaimed

Questions

Which is better for AI agents, Doppler or Pulumi ESC?

Doppler and Pulumi ESC score within a point of each other on agent readiness, 71.4 (BB) and 71.1 (BB). Pulumi ESC leads on agent ergonomics, payments & pricing and maintenance & community.

Do Doppler and Pulumi ESC need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Doppler and Pulumi ESC without installing anything?

Yes. Doppler has a hosted endpoint at https://api.doppler.com/v3 and Pulumi ESC at https://api.pulumi.com.

Other comparisons with Doppler or Pulumi ESC

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