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pydantic

17 indexed repositories · View on GitHub

pydantic
Data validation using Python type hints

Python · 28826 stars
pydantic-ai
How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

Python · 20039 stars
monty
A minimal, secure Python interpreter written in Rust for use by AI

Rust · 8238 stars
logfire
AI observability platform for production LLM and agent systems.

Python · 4480 stars
pydantic-settings
Settings management using pydantic

Python · 1457 stars
httpx2
A next generation HTTP client for Python. 🦋

Python · 1453 stars
pydantic-ai-harness
Your agent's favorite harness, built on Pydantic AI

Python · 903 stars
jiter
Fast iterable JSON parser.

Rust · 550 stars
genai-prices
Calculate prices for calling LLM inference APIs.

Python · 376 stars
pydantic-extra-types
Extra Pydantic types.

Python · 335 stars
speedate
Fast and simple datetime, date, time and duration parsing for rust.

Rust · 252 stars
pytest-examples
Pytest plugin for testing examples in docstrings and markdown files.

Python · 178 stars
skills

Python · 135 stars
logfire-rust

Rust · 77 stars
logfire-js
JavaScript and TypeScript SDK for Logfire

TypeScript · 72 stars
typing-inspection
Runtime typing introspection tools

Python · 67 stars
ai-chat-ui
Web UI for Pydantic AI agents, built over the Vercel AI protocol

TypeScript · 65 stars

Beginner friendly Everything

Open All

Root logger level gets stuck at ERROR forever if griffe raises while parsing a tool docstring Open

p:2-high pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#8547 · 2 comments · Opened Sep 19, 2026
pydantic.v1._hypothesis_plugin cannot be imported under pydantic 2 Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

pydantic/pydantic#13835 · 3 comments · Opened Sep 18, 2026
Groq's gpt-oss-safeguard-20b bills at the gpt-oss-120b rate, about double its real price Open

pydanty:is-working

Difficulty 2/5 1-3 hours Newbie friendliness 90/100

pydantic/genai-prices#701 · Opened Sep 17, 2026
Wrap IPv6 literals in brackets in the `Host` header on default ports Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pydantic-ai#8413 · 2 comments · Opened Sep 16, 2026
DeepSeek profile keys thinking on a "deepseek-v4-" name prefix, so deepseek-flash is sent a forced tool choice and 400s Open

bug pydanty:is-working

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

pydantic/pydantic-ai#8353 · 1 comment · Opened Sep 15, 2026
[price-check/google-mistral] Google/Mistral price discrepancies Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

pydantic/genai-prices#698 · Opened Sep 14, 2026
web_fetch: passing script/style to markdownify's strip leaks JS/CSS source into the markdown Open

p:3-mid pydanty:bug

Difficulty 1/5 Under an hour Newbie friendliness 90/100

pydantic/pydantic-ai#8327 · 2 comments · Opened Sep 14, 2026
[docs-drift] Update AGENTS.md to reflect that `make install` now handles pre-commit Open

docs docs-drift p:4-low pydanty:bug

Difficulty 1/5 Under an hour Newbie friendliness 92/100

pydantic/pydantic-ai#8322 · 2 comments · Opened Sep 14, 2026
Empty transcript corrections leave stale captions in `stream_transcripts(delta=True)` Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

pydantic/pydantic-ai#8319 · 3 comments · Opened Sep 14, 2026
Broken links found in docs Open

docs p:4-low pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/pydantic-ai#8318 · 2 comments · Opened Sep 14, 2026
`Dataset.from_file()` fails on a UTF-8 file with a BOM, with an error that blames the dataset schema Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

pydantic/pydantic-ai#8316 · 2 comments · Opened Sep 13, 2026
Embedding vectors are missing from traces with `include_content=True` Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

pydantic/pydantic-ai#8293 · 2 comments · Opened Sep 12, 2026
[roundtrip-sweep] ModelMessagesTypeAdapter: `ToolSearchMatch` items inside `discovered_tools` silently drop unknown keys on round-trip (gap in PR [Content truncated due to length] Open

message-history p:4-low pydanty:bot roundtrip-sweep

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#8292 · 1 comment · Opened Sep 12, 2026
[roundtrip-sweep] ModelMessagesTypeAdapter: `NativeToolSearchReturnPart` placed in `ModelRequest.parts` silently fails JSON round-trip (sibling ga [Content truncated due to length] Open

p:4-low pydanty:bot roundtrip-sweep

Difficulty 2/5 1-3 hours Newbie friendliness 90/100

pydantic/pydantic-ai#8271 · 1 comment · Opened Sep 11, 2026
`ConcurrencyLimitedModel` bypasses concurrency limits for stateless compaction Open

bug p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8240 · 2 comments · Opened Sep 9, 2026
[roundtrip-sweep] ModelMessagesTypeAdapter: `NativeToolReturnPart` placed in `ModelRequest.parts` silently fails JSON round-trip (different gap fr [Content truncated due to length] Open

p:4-low pydanty:bot roundtrip-sweep

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#8234 · 3 comments · Opened Sep 9, 2026
GoogleModel drops WebSearchTool.blocked_domains, though google-genai now exposes GoogleSearch.exclude_domains Open

p:4-low pydanty:feature

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pydantic-ai#8218 · 4 comments · Opened Sep 8, 2026
regional fable 5 ids without a version suffix fail aws price lookup Open

bug p:3-mid prices pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/genai-prices#689 · 1 comment · Opened Sep 8, 2026
AnthropicModel: `thinking=False` omits the parameter, which on adaptive-thinking models means thinking stays ON Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8199 · 2 comments · Opened Sep 8, 2026
OpenAI Responses native web-search calls are missing from `RequestUsage` Open

native-tools p:3-mid pydanty:feature

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8087 · 4 comments · Opened Sep 4, 2026
OpenAI Responses streaming retains the requested router alias instead of the terminal served model Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8045 · 8 comments · Opened Sep 3, 2026
`TestModel` structured output retries out on `datetime`, `UUID`, `time`, and URL fields Open

p:3-mid pydanty:pr

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8011 · 1 comment · Opened Sep 2, 2026
`OpenAIChatModel` rejects Nebius responses because `metadata.weight_versions` is a list Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pydantic-ai#8009 · 4 comments · Opened Sep 2, 2026
[roundtrip-sweep] ModelMessagesTypeAdapter: LoadCapabilityReturnPart.content silently drops unknown keys on round-trip (gap in PR #7933 fix) Open

bug message-history pydanty:bug roundtrip-sweep

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#8002 · 6 comments · Opened Sep 2, 2026
tests: pin Bedrock thinking + auto-output silent downgrade (native/prompted) path Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#8001 · 2 comments · Opened Sep 2, 2026
LLMJudge renders `bytes` output as one decimal byte value per line Open

evals p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pydantic-ai#7927 · 3 comments · Opened Aug 31, 2026
continuous_usage_stats: usage-less stream chunk wipes the cumulative usage to zero Open

needs MRE p:3-mid

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

pydantic/pydantic-ai#7913 · 2 comments · Opened Aug 30, 2026
Non-streaming chat completions: empty choices array raises bare IndexError instead of a typed error Open

p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#7909 · 2 comments · Opened Aug 30, 2026
`OpenAIProvider` cannot receive an async API-key callback Open

openai p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/pydantic-ai#7883 · 1 comment · Opened Aug 29, 2026
docs: PZERO OpenAIProvider base_url example Open

docs p:4-low pydanty:feature

Difficulty 1/5 Under an hour Newbie friendliness 82/100

pydantic/pydantic-ai#7839 · 1 comment · Opened Aug 28, 2026
There is no public way to ask whether a capability is a durability capability Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

pydantic/pydantic-ai#7771 · 1 comment · Opened Aug 25, 2026
Support customizing prompt place holder hint Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

pydantic/ai-chat-ui#51 · 1 comment · Opened Aug 25, 2026
Clean up Needed Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pytest-examples#72 · 5 comments · Opened Aug 25, 2026
[provider-mapping-sweep] cohere: chat response `id` is silently dropped — `CohereModel._process_response` does not set `provider_response_id` Open

loopable provider-mapping-sweep

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

pydantic/pydantic-ai#7744 · 3 comments · Opened Aug 24, 2026
Update screenshots for dashboard documentation Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

pydantic/logfire#2319 · 3 comments · Opened Aug 24, 2026
[Google] Usage Tracking: Gemini-specific token metrics leak into gen_ai.usage.details causing double-counting downstream Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/pydantic-ai#7742 · 2 comments · Opened Aug 24, 2026
MiniMax models on Fireworks don't get InlineDefsJsonSchemaTransformer Open

loopable

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pydantic/pydantic-ai#7728 · 3 comments · Opened Aug 24, 2026
Please revert aiter_bytes signature to AsyncIterator Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/httpx2#1158 · 2 comments · Opened Aug 24, 2026
Test files importing `snapshot` from `inline_snapshot` instead of the `tests._inline_snapshot` wrapper fail locally with an internal `UsageError` Open

loopable

Difficulty 2/5 1-3 hours Newbie friendliness 80/100

pydantic/pydantic-ai#7683 · 1 comment · Opened Aug 21, 2026
Pending message queued at a `DeferredToolRequests` pause discards the pause and skips approval Open

bug has-workaround p:4-low

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

pydantic/pydantic-ai#7537 · 2 comments · Opened Aug 17, 2026
Consider allowing `phonenumberslite` as an extra option Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

pydantic/pydantic-extra-types#420 · Opened Aug 17, 2026
`AGUIEventStream` doesn't emit agent-generated `FilePart`s Open

AG-UI area:ui-adapters bug has-workaround p:4-low pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

pydantic/pydantic-ai#7508 · 2 comments · Opened Aug 17, 2026
[Bug] Field mismatch in ToolOutputAvailablePart: expected result_provider_metadata (resultProviderMetadata) Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/pydantic-ai#7507 · 3 comments · Opened Aug 17, 2026
pydantic-evals: diff rendering points the wrong way for negative baselines Open

bug evals p:3-mid pydanty:bug

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

pydantic/pydantic-ai#7496 · 6 comments · Opened Aug 16, 2026
CLI: honor `LOGFIRE_BASE_URL` env var for the base URL (consistency with the SDK) Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pydantic/logfire#2257 · Opened Aug 14, 2026
`SubAgents` does not propagate parent `usage_limits` with shared usage Open

bug cap:subagents needs:triage

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

pydantic/pydantic-ai-harness#588 · 2 comments · Opened Aug 12, 2026
`Type::call` non-callable arm leaks its `ArgValues` (heap arg over-retain) Open

bug

Difficulty 1/5 1-3 hours Newbie friendliness 86/100

pydantic/monty#719 · Opened Aug 12, 2026
Export AutoBackend Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

pydantic/httpx2#1131 · 1 comment · Opened Aug 10, 2026
Slashes get cut off in CronStr Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

pydantic/pydantic-extra-types#418 · 1 comment · Opened Aug 10, 2026
Warn when a token's region is unrecognised instead of silently defaulting to US Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

pydantic/logfire-rust#149 · Opened Aug 10, 2026

pydantic

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