# PipeLime Help Center > Guides, references and troubleshooting for PipeLime. - [Help Center (149 pages)](https://help.pipelime.ai/_llms/en/help-center.md): Documentation for Help Center. ## Developers ### API - [API overview](https://help.pipelime.ai/en/developers/overview.md): What the public API is for, how it authenticates, what a scope grants and what the versioning promise covers. - [Create, roll and revoke API keys](https://help.pipelime.ai/en/developers/api-keys.md): Create a key with the scopes and expiry you want, store the secret, replace it without downtime, and kill it when you need to. - [Authentication](https://help.pipelime.ai/en/developers/authentication.md): How to authenticate a request, what a key looks like, and what each failure means. - [Quickstart: send your first lead](https://help.pipelime.ai/en/developers/quickstart-send-a-lead.md): Check the key, post a lead as a dry run, read the result, then send it for real. - [POST /leads](https://help.pipelime.ai/en/developers/post-leads.md): Request body, duplicate handling, dry run, and every field of the response envelope. - [POST /leads/batch](https://help.pipelime.ai/en/developers/post-leads-batch.md): Send many leads in one call, read the per-row outcome, and understand why a bad row cannot poison the rest. - [GET /me, GET /tags and GET /leads/{id}](https://help.pipelime.ai/en/developers/get-me-tags-and-leads.md): Confirm which workspace a key belongs to, list the tags you can apply, and read a lead back. - [Lead fields reference](https://help.pipelime.ai/en/developers/lead-fields-reference.md): Every accepted field by group, what it does, and the limits that apply to the repeating ones. - [Idempotency, deduplication and rate limits](https://help.pipelime.ai/en/developers/idempotency-deduplication-and-rate-limits.md): Retrying safely, how an existing lead is recognised, and what happens when you send too fast. - [Errors reference](https://help.pipelime.ai/en/developers/errors.md): Every status the API returns, the error code that comes with it, and what to change before retrying. - [Web Forms: capture script and submissions endpoint](https://help.pipelime.ai/en/developers/web-forms-capture-endpoint.md): Install the snippet or post submissions yourself, with the payload shape, the domain check and the error bodies. - [Outbound webhooks (there is no event subscription API)](https://help.pipelime.ai/en/developers/outbound-webhooks.md): How leads leave the platform (the webhook connector and the workflow block), plus the payload shape and the network rules. ## What's new ### What's new - [Changelog](https://help.pipelime.ai/en/whats-new/changelog.md): Dated entries for every release, each one saying what changed, how widely it is available, and which pages were updated. ## OpenAPI Specs - [base](/openapi/base.yaml) - [pipelime-v1](/openapi/pipelime-v1.yaml) > The links below point to documentation indexes. Follow each `/_llms/` index recursively until you reach documentation pages. ## Indexes - [English / Help Center (149 pages)](https://help.pipelime.ai/_llms/en/help-center.md): Documentation for English / Help Center. - [Spanish (18 pages)](https://help.pipelime.ai/_llms/es.md): Documentation for Spanish.