---
title: "Sources · every primary source the corpus cites · Agent Fieldbook"
url: https://agentfieldbook.org/sources/
description: "Every source cited in the Fieldbook, grouped by domain and credibility tier. 125 primary domains (121 T1, 3 T2, 1 T3), each with its own provenance record of the datapoints it backs."
section: "Sources · the evidence layer"
source: Agent Fieldbook — generated from the published page
---

# Every source the corpus cites

Every claim in the Fieldbook is traceable to a source. This is the directory of them: 125 primary domains, each graded by credibility tier and linked to its own provenance record. Tiers are the trust bands: **T1** authorities in blue, **T2** reputable secondary in amber, **T3** weaker or aggregator sources in grey.

## T1 · authoritative · 121 domains

- [GitHub T1 github.com · 313 citations](https://agentfieldbook.org/sources/github-com/)

- [OpenRouter T1 openrouter.ai · 307 citations](https://agentfieldbook.org/sources/openrouter-ai/)

- [Epoch AI T1 epoch.ai · 180 citations](https://agentfieldbook.org/sources/epoch-ai/)

- [arXiv T1 arxiv.org · 97 citations](https://agentfieldbook.org/sources/arxiv-org/)

- [METR T1 metr.org · 19 citations](https://agentfieldbook.org/sources/metr-org/)

- [Anthropic T1 anthropic.com · 15 citations](https://agentfieldbook.org/sources/anthropic-com/)

- [docs.cloud.google T1 docs.cloud.google.com · 15 citations](https://agentfieldbook.org/sources/docs-cloud-google-com/)

- [Cloudflare Blog T1 blog.cloudflare.com · 14 citations](https://agentfieldbook.org/sources/blog-cloudflare-com/)

- [OpenAI T1 openai.com · 11 citations](https://agentfieldbook.org/sources/openai-com/)

- [Cloudflare Developers T1 developers.cloudflare.com · 10 citations](https://agentfieldbook.org/sources/developers-cloudflare-com/)

- [palantir T1 palantir.com · 8 citations](https://agentfieldbook.org/sources/palantir-com/)

- [Google Cloud T1 cloud.google.com · 7 citations](https://agentfieldbook.org/sources/cloud-google-com/)

- [langchain-ai.github T1 langchain-ai.github.io · 7 citations](https://agentfieldbook.org/sources/langchain-ai-github-io/)

- [AWS Docs T1 docs.aws.amazon.com · 7 citations](https://agentfieldbook.org/sources/docs-aws-amazon-com/)

- [Microsoft T1 microsoft.com · 5 citations](https://agentfieldbook.org/sources/microsoft-com/)

- [Salesforce T1 salesforce.com · 5 citations](https://agentfieldbook.org/sources/salesforce-com/)

- [AWS T1 aws.amazon.com · 5 citations](https://agentfieldbook.org/sources/aws-amazon-com/)

- [Hugging Face T1 huggingface.co · 5 citations](https://agentfieldbook.org/sources/huggingface-co/)

- [Microsoft Learn T1 learn.microsoft.com · 5 citations](https://agentfieldbook.org/sources/learn-microsoft-com/)

- [NIST T1 nist.gov · 5 citations](https://agentfieldbook.org/sources/nist-gov/)

- [ACL Anthology T1 aclanthology.org · 5 citations](https://agentfieldbook.org/sources/aclanthology-org/)

- [github T1 github.blog · 4 citations](https://agentfieldbook.org/sources/github-blog/)

- [lovable T1 lovable.dev · 4 citations](https://agentfieldbook.org/sources/lovable-dev/)

- [sierra T1 sierra.ai · 4 citations](https://agentfieldbook.org/sources/sierra-ai/)

- [decagon T1 decagon.ai · 4 citations](https://agentfieldbook.org/sources/decagon-ai/)

- [Vercel T1 vercel.com · 4 citations](https://agentfieldbook.org/sources/vercel-com/)

- [Model Context Protocol T1 modelcontextprotocol.io · 4 citations](https://agentfieldbook.org/sources/modelcontextprotocol-io/)

- [Cursor T1 cursor.com · 4 citations](https://agentfieldbook.org/sources/cursor-com/)

- [Google T1 blog.google · 3 citations](https://agentfieldbook.org/sources/blog-google/)

- [Intercom T1 intercom.com · 3 citations](https://agentfieldbook.org/sources/intercom-com/)

- [relevanceai T1 relevanceai.com · 3 citations](https://agentfieldbook.org/sources/relevanceai-com/)

- [elevenlabs T1 elevenlabs.io · 3 citations](https://agentfieldbook.org/sources/elevenlabs-io/)

- [Aider T1 aider.chat · 3 citations](https://agentfieldbook.org/sources/aider-chat/)

- [Clay T1 clay.com · 3 citations](https://agentfieldbook.org/sources/clay-com/)

- [runwayml T1 runwayml.com · 3 citations](https://agentfieldbook.org/sources/runwayml-com/)

- [glean T1 glean.com · 3 citations](https://agentfieldbook.org/sources/glean-com/)

- [developers.google T1 developers.google.com · 3 citations](https://agentfieldbook.org/sources/developers-google-com/)

- [docs.langchain T1 docs.langchain.com · 3 citations](https://agentfieldbook.org/sources/docs-langchain-com/)

- [getzep T1 getzep.com · 3 citations](https://agentfieldbook.org/sources/getzep-com/)

- [A2A Protocol T1 a2a-protocol.org · 3 citations](https://agentfieldbook.org/sources/a2a-protocol-org/)

- [research.checkpoint T1 research.checkpoint.com · 3 citations](https://agentfieldbook.org/sources/research-checkpoint-com/)

- [Google DeepMind T1 deepmind.google · 2 citations](https://agentfieldbook.org/sources/deepmind-google/)

- [docs.cursor T1 docs.cursor.com · 2 citations](https://agentfieldbook.org/sources/docs-cursor-com/)

- [Sourcegraph T1 sourcegraph.com · 2 citations](https://agentfieldbook.org/sources/sourcegraph-com/)

- [cognition T1 cognition.com · 2 citations](https://agentfieldbook.org/sources/cognition-com/)

- [HubSpot T1 hubspot.com · 2 citations](https://agentfieldbook.org/sources/hubspot-com/)

- [docs.lindy T1 docs.lindy.ai · 2 citations](https://agentfieldbook.org/sources/docs-lindy-ai/)

- [Zapier T1 zapier.com · 2 citations](https://agentfieldbook.org/sources/zapier-com/)

- [Harvey T1 harvey.ai · 2 citations](https://agentfieldbook.org/sources/harvey-ai/)

- [Hebbia T1 hebbia.com · 2 citations](https://agentfieldbook.org/sources/hebbia-com/)

- [make T1 make.com · 2 citations](https://agentfieldbook.org/sources/make-com/)

- [n8n T1 n8n.io · 2 citations](https://agentfieldbook.org/sources/n8n-io/)

- [retool T1 retool.com · 2 citations](https://agentfieldbook.org/sources/retool-com/)

- [airtable T1 airtable.com · 2 citations](https://agentfieldbook.org/sources/airtable-com/)

- [coda T1 coda.io · 2 citations](https://agentfieldbook.org/sources/coda-io/)

- [bardeen T1 bardeen.ai · 2 citations](https://agentfieldbook.org/sources/bardeen-ai/)

- [swe-agent T1 swe-agent.com · 2 citations](https://agentfieldbook.org/sources/swe-agent-com/)

- [continue T1 continue.dev · 2 citations](https://agentfieldbook.org/sources/continue-dev/)

- [zed T1 zed.dev · 2 citations](https://agentfieldbook.org/sources/zed-dev/)

- [warp T1 warp.dev · 2 citations](https://agentfieldbook.org/sources/warp-dev/)

- [bolt T1 bolt.new · 2 citations](https://agentfieldbook.org/sources/bolt-new/)

- [v0 T1 v0.dev · 2 citations](https://agentfieldbook.org/sources/v0-dev/)

- [11x T1 11x.ai · 2 citations](https://agentfieldbook.org/sources/11x-ai/)

- [aisdr T1 aisdr.com · 2 citations](https://agentfieldbook.org/sources/aisdr-com/)

- [regie T1 regie.ai · 2 citations](https://agentfieldbook.org/sources/regie-ai/)

- [Apollo T1 apollo.io · 2 citations](https://agentfieldbook.org/sources/apollo-io/)

- [Gong T1 gong.io · 2 citations](https://agentfieldbook.org/sources/gong-io/)

- [jasper T1 jasper.ai · 2 citations](https://agentfieldbook.org/sources/jasper-ai/)

- [copy T1 copy.ai · 2 citations](https://agentfieldbook.org/sources/copy-ai/)

- [heygen T1 heygen.com · 2 citations](https://agentfieldbook.org/sources/heygen-com/)

- [synthesia T1 synthesia.io · 2 citations](https://agentfieldbook.org/sources/synthesia-io/)

- [vapi T1 vapi.ai · 2 citations](https://agentfieldbook.org/sources/vapi-ai/)

- [retellai T1 retellai.com · 2 citations](https://agentfieldbook.org/sources/retellai-com/)

- [bland T1 bland.ai · 2 citations](https://agentfieldbook.org/sources/bland-ai/)

- [cresta T1 cresta.com · 2 citations](https://agentfieldbook.org/sources/cresta-com/)

- [ironcladapp T1 ironcladapp.com · 2 citations](https://agentfieldbook.org/sources/ironcladapp-com/)

- [robinai T1 robinai.com · 2 citations](https://agentfieldbook.org/sources/robinai-com/)

- [suki T1 suki.ai · 2 citations](https://agentfieldbook.org/sources/suki-ai/)

- [notablehealth T1 notablehealth.com · 2 citations](https://agentfieldbook.org/sources/notablehealth-com/)

- [glass T1 glass.health · 2 citations](https://agentfieldbook.org/sources/glass-health/)

- [auquan T1 auquan.com · 2 citations](https://agentfieldbook.org/sources/auquan-com/)

- [kensho T1 kensho.com · 2 citations](https://agentfieldbook.org/sources/kensho-com/)

- [julius T1 julius.ai · 2 citations](https://agentfieldbook.org/sources/julius-ai/)

- [hex T1 hex.tech · 2 citations](https://agentfieldbook.org/sources/hex-tech/)

- [Databricks T1 databricks.com · 2 citations](https://agentfieldbook.org/sources/databricks-com/)

- [snowflake T1 snowflake.com · 2 citations](https://agentfieldbook.org/sources/snowflake-com/)

- [datadoghq T1 datadoghq.com · 2 citations](https://agentfieldbook.org/sources/datadoghq-com/)

- [runwhen T1 runwhen.com · 2 citations](https://agentfieldbook.org/sources/runwhen-com/)

- [elicit T1 elicit.com · 2 citations](https://agentfieldbook.org/sources/elicit-com/)

- [consensus T1 consensus.app · 2 citations](https://agentfieldbook.org/sources/consensus-app/)

- [perplexity T1 perplexity.ai · 2 citations](https://agentfieldbook.org/sources/perplexity-ai/)

- [paradox T1 paradox.ai · 2 citations](https://agentfieldbook.org/sources/paradox-ai/)

- [oracle T1 oracle.com · 2 citations](https://agentfieldbook.org/sources/oracle-com/)

- [netlify T1 netlify.com · 2 citations](https://agentfieldbook.org/sources/netlify-com/)

- [fly T1 fly.io · 2 citations](https://agentfieldbook.org/sources/fly-io/)

- [modal T1 modal.com · 2 citations](https://agentfieldbook.org/sources/modal-com/)

- [together T1 together.ai · 2 citations](https://agentfieldbook.org/sources/together-ai/)

- [baseten T1 baseten.co · 2 citations](https://agentfieldbook.org/sources/baseten-co/)

- [digitalocean T1 digitalocean.com · 2 citations](https://agentfieldbook.org/sources/digitalocean-com/)

- [render T1 render.com · 2 citations](https://agentfieldbook.org/sources/render-com/)

- [support.airtable T1 support.airtable.com · 2 citations](https://agentfieldbook.org/sources/support-airtable-com/)

- [docs.netlify T1 docs.netlify.com · 2 citations](https://agentfieldbook.org/sources/docs-netlify-com/)

- [developers.notion T1 developers.notion.com · 2 citations](https://agentfieldbook.org/sources/developers-notion-com/)

- [supabase T1 supabase.com · 2 citations](https://agentfieldbook.org/sources/supabase-com/)

- [docs.mem0 T1 docs.mem0.ai · 2 citations](https://agentfieldbook.org/sources/docs-mem0-ai/)

- [docs.letta T1 docs.letta.com · 2 citations](https://agentfieldbook.org/sources/docs-letta-com/)

- [redis T1 redis.io · 2 citations](https://agentfieldbook.org/sources/redis-io/)

- [upstash T1 upstash.com · 2 citations](https://agentfieldbook.org/sources/upstash-com/)

- [hdsr.mitpress.mit T1 hdsr.mitpress.mit.edu · 2 citations](https://agentfieldbook.org/sources/hdsr-mitpress-mit-edu/)

- [ISO T1 iso.org · 2 citations](https://agentfieldbook.org/sources/iso-org/)

- [OWASP T1 owasp.org · 2 citations](https://agentfieldbook.org/sources/owasp-org/)

- [inspect.aisi.org T1 inspect.aisi.org.uk · 2 citations](https://agentfieldbook.org/sources/inspect-aisi-org-uk/)

- [SWE-bench T1 swebench.com · 2 citations](https://agentfieldbook.org/sources/swebench-com/)

- [os-world.github T1 os-world.github.io · 2 citations](https://agentfieldbook.org/sources/os-world-github-io/)

- [WebArena T1 webarena.dev · 2 citations](https://agentfieldbook.org/sources/webarena-dev/)

- [tbench T1 tbench.ai · 2 citations](https://agentfieldbook.org/sources/tbench-ai/)

- [e2b T1 e2b.dev · 2 citations](https://agentfieldbook.org/sources/e2b-dev/)

- [Mistral AI T1 mistral.ai · 2 citations](https://agentfieldbook.org/sources/mistral-ai/)

- [invariantlabs T1 invariantlabs.ai · 2 citations](https://agentfieldbook.org/sources/invariantlabs-ai/)

- [docs.github T1 docs.github.com · 2 citations](https://agentfieldbook.org/sources/docs-github-com/)

- [docs.anthropic T1 docs.anthropic.com · 2 citations](https://agentfieldbook.org/sources/docs-anthropic-com/)

## T2 · reputable secondary · 3 domains

- [Artificial Analysis T2 artificialanalysis.ai · 18 citations](https://agentfieldbook.org/sources/artificialanalysis-ai/)

- [TechCrunch T2 techcrunch.com · 6 citations](https://agentfieldbook.org/sources/techcrunch-com/)

- [mckinsey T2 mckinsey.com · 5 citations](https://agentfieldbook.org/sources/mckinsey-com/)

## T3 · weak / aggregator · 1 domain

- [Semiconductor Digest T3 marklapedus.substack.com · 7 citations](https://agentfieldbook.org/sources/marklapedus-substack-com/)

## Field notes

A crawlable directory of primary sources, graded by credibility tier

Every claim in the Fieldbook resolves to a source, and this index makes those sources addressable, grouped by domain and graded by credibility tier. It currently cites **125 source domains**, 121 graded T1, 3 T2 and 1 T3.

T1 is primary or authoritative: a vendor writing about its own product, a research body, a standards organisation or a government dataset. T2 is reputable secondary. T3 is weak and is only ever used as a pointer, never as the basis of a confirmed datapoint. The grade travels with the claim, so a reader can check the corpus rather than believe it.

- [Brandon Chaplin](https://www.linkedin.com/in/brandon-chaplin-digital-marketing-strategist)

## Entries

_100 entries listed on this page._

| name | url |
| --- | --- |
| GitHub | /sources/github-com/ |
| OpenRouter | /sources/openrouter-ai/ |
| Epoch AI | /sources/epoch-ai/ |
| arXiv | /sources/arxiv-org/ |
| METR | /sources/metr-org/ |
| Artificial Analysis | /sources/artificialanalysis-ai/ |
| Anthropic | /sources/anthropic-com/ |
| docs.cloud.google | /sources/docs-cloud-google-com/ |
| Cloudflare Blog | /sources/blog-cloudflare-com/ |
| OpenAI | /sources/openai-com/ |
| Cloudflare Developers | /sources/developers-cloudflare-com/ |
| palantir | /sources/palantir-com/ |
| Semiconductor Digest | /sources/marklapedus-substack-com/ |
| Google Cloud | /sources/cloud-google-com/ |
| langchain-ai.github | /sources/langchain-ai-github-io/ |
| AWS Docs | /sources/docs-aws-amazon-com/ |
| TechCrunch | /sources/techcrunch-com/ |
| Microsoft | /sources/microsoft-com/ |
| Salesforce | /sources/salesforce-com/ |
| AWS | /sources/aws-amazon-com/ |
| Hugging Face | /sources/huggingface-co/ |
| Microsoft Learn | /sources/learn-microsoft-com/ |
| NIST | /sources/nist-gov/ |
| ACL Anthology | /sources/aclanthology-org/ |
| mckinsey | /sources/mckinsey-com/ |
| github | /sources/github-blog/ |
| lovable | /sources/lovable-dev/ |
| sierra | /sources/sierra-ai/ |
| decagon | /sources/decagon-ai/ |
| Vercel | /sources/vercel-com/ |
| Model Context Protocol | /sources/modelcontextprotocol-io/ |
| Cursor | /sources/cursor-com/ |
| Google | /sources/blog-google/ |
| Intercom | /sources/intercom-com/ |
| relevanceai | /sources/relevanceai-com/ |
| elevenlabs | /sources/elevenlabs-io/ |
| Aider | /sources/aider-chat/ |
| Clay | /sources/clay-com/ |
| runwayml | /sources/runwayml-com/ |
| glean | /sources/glean-com/ |
| developers.google | /sources/developers-google-com/ |
| docs.langchain | /sources/docs-langchain-com/ |
| getzep | /sources/getzep-com/ |
| A2A Protocol | /sources/a2a-protocol-org/ |
| research.checkpoint | /sources/research-checkpoint-com/ |
| Google DeepMind | /sources/deepmind-google/ |
| docs.cursor | /sources/docs-cursor-com/ |
| Sourcegraph | /sources/sourcegraph-com/ |
| cognition | /sources/cognition-com/ |
| HubSpot | /sources/hubspot-com/ |
| docs.lindy | /sources/docs-lindy-ai/ |
| Zapier | /sources/zapier-com/ |
| Harvey | /sources/harvey-ai/ |
| Hebbia | /sources/hebbia-com/ |
| make | /sources/make-com/ |
| n8n | /sources/n8n-io/ |
| retool | /sources/retool-com/ |
| airtable | /sources/airtable-com/ |
| coda | /sources/coda-io/ |
| bardeen | /sources/bardeen-ai/ |
| swe-agent | /sources/swe-agent-com/ |
| continue | /sources/continue-dev/ |
| zed | /sources/zed-dev/ |
| warp | /sources/warp-dev/ |
| bolt | /sources/bolt-new/ |
| v0 | /sources/v0-dev/ |
| 11x | /sources/11x-ai/ |
| aisdr | /sources/aisdr-com/ |
| regie | /sources/regie-ai/ |
| Apollo | /sources/apollo-io/ |
| Gong | /sources/gong-io/ |
| jasper | /sources/jasper-ai/ |
| copy | /sources/copy-ai/ |
| heygen | /sources/heygen-com/ |
| synthesia | /sources/synthesia-io/ |
| vapi | /sources/vapi-ai/ |
| retellai | /sources/retellai-com/ |
| bland | /sources/bland-ai/ |
| cresta | /sources/cresta-com/ |
| ironcladapp | /sources/ironcladapp-com/ |
| robinai | /sources/robinai-com/ |
| suki | /sources/suki-ai/ |
| notablehealth | /sources/notablehealth-com/ |
| glass | /sources/glass-health/ |
| auquan | /sources/auquan-com/ |
| kensho | /sources/kensho-com/ |
| julius | /sources/julius-ai/ |
| hex | /sources/hex-tech/ |
| Databricks | /sources/databricks-com/ |
| snowflake | /sources/snowflake-com/ |
| datadoghq | /sources/datadoghq-com/ |
| runwhen | /sources/runwhen-com/ |
| elicit | /sources/elicit-com/ |
| consensus | /sources/consensus-app/ |
| perplexity | /sources/perplexity-ai/ |
| paradox | /sources/paradox-ai/ |
| oracle | /sources/oracle-com/ |
| netlify | /sources/netlify-com/ |
| fly | /sources/fly-io/ |
| modal | /sources/modal-com/ |