Coding Agent Capture, and Gateway Billing
LangWatch captures Copilot from its CLI wrapper, its app login agent and VS Code Chat, and there is a LangWatch plugin for Claude Code. Gateway spend gets a billing pipeline with webhooks and reconciliation.
What You Can Do Now
See what your coding agents are doing
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Capture Copilot across three surfaces: the CLI wrapper, the app login agent, and VS Code Chat.
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Capture the conversation from a plain codex run, not just the wrapper.
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Install a first-class LangWatch plugin for Claude Code, built on Agent Plugins 1.0, and it keeps itself up to date from every wrapped run.
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Review session economics, with the repositories and pull requests behind each session.
Bill and reconcile gateway spend
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A billing-grade spend pipeline with a webhook endpoints platform and a reconciliation surface, plus anchored cycles and idempotency keys.
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A budget now applies to the traffic it was scoped to, and each route states which key it requires.
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One filter vocabulary across both spend reads, and grouping that no longer double-counts.
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Routing-policy and cache-rule edits propagate through the change feed.
Self-host with your own identity and email
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AWS Cognito and OneLogin join the supported self-hosted SSO providers.
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One switch for email, with SMTP and Resend gateways, outbound proxy support, and a self-hosting page walking through setup.
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Sign-up recovers when the account already exists.
Turn traces into datasets
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A trace edit overlay, and an annotation-queue-to-dataset workflow, so review work becomes training or evaluation data.
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Oversized spans spool to S3 by default, so configured storage means no truncation.
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The Events column in Traces V2 reads real events, and a category with no result no longer shows as a passing zero.
Build against the API
- The REST API the SDKs actually call is now published as reference docs, with route coverage gated in CI.
Model providers
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Google Agent Platform is now part of the Gemini provider, reachable through either endpoint.
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Test a credential you have already saved, and an extra header no longer wipes stored Azure credentials.
Housekeeping you will feel
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Seven production defects found in a five-day error review, fixed.
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We stopped tracing every Redis command, which had been 93 percent of all spans.
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The legacy Ragas evaluators are gone.
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Seat changes no longer get blocked by a personal workspace, and refusals say what was refused.
Screenshots
Coding-agent sessions, with the repositories and pull requests behind them.

Repository capture in the sessions lens.

The billing events ledger.

Self-hosted SSO through Cognito.

The trace edit overlay with its annotations column.

REST API reference, published from what the SDKs call.

Notes
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Three app releases this week: 3.9.0, 3.10.0 and 3.11.0, plus python-sdk 1.2, typescript-sdk 1.5, mcp-server 2.0 and langevals 3.0.
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mcp-server 2.0 is a major: every request to the standalone HTTP server is now authorized.
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Performance: resident memory cut on the server, content-hashed assets can be served from a CDN, and prod entrypoints are bundled to run on node rather than tsx.