# Codex > Codex is a GraphQL API from Codex Data Inc. for on-chain crypto data, with token prices, OHLCV bars, trades, holders, wallet PnL, launchpads and prediction markets across 80+ networks, over HTTP, WebSocket subscriptions and webhooks. - Canonical: https://www.anchorterminal.com/tools/codex-graphql - Pricing: https://www.anchorterminal.com/tools/codex-graphql#pricing - Reviews: https://www.anchorterminal.com/tools/codex-graphql#reviews - Markdown: https://www.anchorterminal.com/tools/codex-graphql.md (~7,550 tokens) - Slim: https://www.anchorterminal.com/tools/codex-graphql.min.md (~1,730 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/tools/codex-graphql.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key) - DNS: dig +short TXT codex-graphql.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.. and .vs.. under the zone, and the same under grade.letme.dev) - Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data) - Updated: 2026-11-07 ## Overview **Grade BB · 75.4/100 · rank #64 of 1486 · #1 in Data providers · agent-ready · confidence medium** ## Assessment An agent can query on-chain token, wallet and prediction-market data with no account by paying $0.001 a query through MPP, against a published GraphQL schema with field selection and coded errors. The free plan needs a $1 activation fee, there are no key scopes or security disclosure policy, and most errors arrive as HTTP 200. ## Facts | Field | Value | | --- | --- | | Vendor | Codex Data Inc. (https://www.codex.io) | | Kind | HTTP API | | Category | Data providers (https://www.anchorterminal.com/categories/data-providers) | | Transport | HTTP, websocket | | Endpoint | `https://graph.codex.io/graphql` | | Auth | API key · API key in the `Authorization` header with no `Bearer` prefix, from the dashboard after signup. Secret keys are long-lived; `createApiTokens` mints short-lived tokens (sent as `Bearer `) with an expiry and a request limit for browsers. Keys can be deactivated and given their own compute-unit limit. 1 key on the free plan, 5 on Growth. A request with no `Authorization` header is treated as a pay-per-query MPP call. | | Pricing | Freemium ($0.001 / call) · Almost free plan: 10,000 compute units over a rolling 30 days and 5 requests a second, after a one-time $1 activation fee paid by card or 1 USDC. Growth from $360 a month for 3M compute units ($120 per million), 5M to 50M tiers, overage $115 to $138 per million. Without an account, $0.001 a query in USDC on Tempo through MPP. Enterprise by contact (https://www.codex.io/pricing, https://docs.codex.io/agents/mpp, checked 2026-11-06). | | x402 | No · No x402. Codex takes the Machine Payments Protocol (MPP) on every query endpoint: a request with no API key gets HTTP 402 with a payment challenge, paid at $0.001 in USDC on Tempo. Subscriptions and webhooks are not available through MPP. An unauthenticated GET to https://graph.codex.io/graphql answered 400 application/problem+json with type https://ietf.org/payment/problems/invalid-request on 6 November 2026 (https://docs.codex.io/agents/mpp). | | Licence | Proprietary service under Codex Data Inc.'s terms of service. The TypeScript SDK is MIT | | Tools exposed | 0 | | Packages | npm: `@codex-data/sdk` | | Source | https://github.com/Codex-Data/sdk | | Docs | https://docs.codex.io | | llms.txt | https://docs.codex.io/llms.txt | | Last release | 2026-11-02 | | npm downloads / week | 74,802 | | Surface listed | The GraphQL API at graph.codex.io (queries over HTTP, subscriptions over WebSocket, webhooks), read from docs.codex.io, www.codex.io, the terms and privacy policy, status.codex.io and the Codex-Data/sdk repository on 6 November 2026. No account was made and no paid query was sent | | Which Codex | codex.io, run by Codex Data Inc. Its FAQ says it is unrelated to OpenAI's Codex coding agent, which is listed separately | | Coverage | 80+ networks, 109M+ tokens, 3B+ wallets and 41B+ historical events per the pricing page; Polymarket and Kalshi for prediction markets. Solana data begins 20 March 2024, per the FAQ | | Operations | 74 queries, 7 mutations and 22 subscriptions in the docs index, among them filterTokens, getBars, getTokenBars, getTokenPrices, holders, balances, filterWallets and the prediction-market filters | | Rate limits | 5 requests a second on the free plan, 300 on Growth with a 500 burst, custom on Enterprise. Per-request maxima such as 25 inputs on getTokenPrices and 1,500 data points on getBars | | MPP | $0.001 a query in USDC on Tempo, no account or key. Not available for subscriptions or webhooks. Codex's skill drives Tempo's `tempo` CLI to pay | | SDKs | TypeScript `@codex-data/sdk` (MIT), 2.5.18 on npm on 4 November 2026. The docs say there is no SDK for other languages | | Legal entity | Codex Data Inc., named in the terms, privacy policy and site footer. The terms choose the laws of British Columbia | | Capabilities | market.crypto, data.markets, market.indices | | Tags | hosted, graphql, websocket, webhooks, llms-txt, typescript, status-page, freemium, usage-based, stablecoin, agent-skills, closed-source | | JSON | https://www.anchorterminal.com/api/v1/tools/codex-graphql.json | ## Score breakdown (methodology v0.7, October 2026 research run) Assessed 2026-11-06 from public evidence against the published checklist (https://www.anchorterminal.com/benchmark/#checklist). Confidence: medium. Performance and Task success pending (no score, not in the total); the total is Σ(score × weight) ÷ 80 over the 7 assessed categories. "This run" is each category's share of the 100 points. | Category | Weight | This run | Score (0–100) | Points | | --- | --- | --- | --- | --- | | Reliability | 16% | 20 | 85 | 17.0 | | Performance | 10% | pending | pending | n/a | | Schema & documentation | 13% | 16.2 | 91 | 14.8 | | Agent ergonomics | 13% | 16.2 | 79 | 12.8 | | Security & auth | 14% | 17.5 | 49 | 8.6 | | Payments & pricing | 10% | 12.5 | 80 | 10.0 | | Task success | 10% | pending | pending | n/a | | Maintenance & community | 7% | 8.8 | 80 | 7.0 | | Transparency & trust (editorial 45, provenance 72) | 7% | 8.8 | 59 | 5.2 | | Negative events | up to −15 | up to −15 | none recorded | 0 | | **Total** | | | | **75.4 → BB** | ### Why each score - Reliability 85 (checked 2026-11-06): Hosted lines. Status page at status.codex.io (incident.io) with API, Dashboard and 25 network components and a history page (20). The history from 8 August to 6 November lists an elevated-latency incident on 11 August (balances queries, 42 minutes, labelled degraded performance), a 5xx spike the same day, degraded filterTokens on 12 August, and network delays on Robinhood, BNB, Cronos, Fogo and Solana pricing in late August and September, with none in October or November. All read as partial or degraded, so minor only (20). Per-plan rate limits (5 a second free, 300 on Growth with a 500 burst) and per-request maxima are published (15). 429 TOO_MANY_REQUESTS carries `retryAfterSeconds` and `Retry-After`, OVER_CAPACITY says to wait 30 seconds, and the errors page says which codes to retry; writes are limited to webhook and token mutations (15). The pricing page shows '99.9% Uptime SLA' as a headline figure and custom SLAs on Enterprise, with no SLA document found (5 of 10). The API is generally available (10). 20+20+15+15+5+10 = 85. - Performance: Pending. Latency is measured per call by our probes, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until the first probe window closes. - Schema & documentation 91 (checked 2026-11-06): The full GraphQL schema, 18,159 lines, is in the MIT SDK repository at src/resources/schema.graphql, updated on 5 November 2026, and introspection is free (25). llms.txt, llms-full.txt and a Markdown twin of every page (10). Reference pages give a one-line purpose per operation, and the API reference intro, the queries-versus-subscriptions page and llms.txt say which operation to use for which job and to batch rather than loop (13 of 20). GraphQL types with enums, input objects and non-null markers, and documented maxima per argument (14 of 15). Examples on every recipe and reference page, and an error table with code, HTTP status, meaning and retry advice (14 of 15). Weekly dated changelog from 26 August 2024 to 2 November 2026 with RSS and dated deprecations (15). 25+10+13+14+14+15 = 91. - Agent ergonomics 79 (checked 2026-11-06): GraphQL field selection, so a response holds only the fields asked for, and `usageData` reports the cost of a request (23 of 25). `limit` on filter queries up to 200, rankings and 100+ filter signals on filterTokens; some list arguments drop extra inputs silently rather than failing (18 of 20). Coded errors an agent can branch on, but most arrive as HTTP 200 in an `errors` array, and an inline input type mismatch returns only a message (16 of 20). Queries are reads and identical requests cost the same; errors are not billed except NOT_FOUND. No idempotency key on the webhook and token mutations (14 of 20). Few required arguments beyond `networkId`. One official SDK, TypeScript (8 of 15). 23+18+16+14+8 = 79. - Security & auth 49 (checked 2026-11-06): Secret API keys in a header, never in the URL. Short-lived tokens from `createApiTokens` with an expiry and a request limit, per-key compute-unit limits and key deactivation. No scopes (22 of 30). The surface is mostly reads; mutations create webhooks and short-lived tokens. No read-only key (12 of 20). Token names, symbols, social links and community notes come from token deployers and other sources, and the docs warn tokens may be scams, with no prompt-injection guidance (5 of 15). The dashboard usage page breaks compute units down by operation, `apiUsage` reports the period's use and `usageData` the cost of each request (10 of 15). security.txt returns 404, and no disclosure policy, bug bounty or certification was found on the site or docs (0 of 20). 22+12+5+10+0 = 49. - Payments & pricing 80 (checked 2026-11-06): MPP (Machine Payments Protocol) on every query endpoint, paid in USDC on Tempo; subscriptions and webhooks are not covered, and it is not x402 (35 of 40). $0.001 a query through MPP, compute-unit costs per operation, and Growth at $120 per million compute units, all public (20). The Almost free plan's 10,000 compute units need a one-time $1 activation fee by card or 1 USDC, which the terms say confirms a payment method (5 of 20). An agent can pay per query with no account or key (20). 35+20+5+20 = 80. - Task success: Pending. Task success needs the category task suites run through each tool, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until then. A data provider's data-quality score is published on its listing now and becomes half of this category when it's scored. (data quality 72, half of this category once the task suite runs) - Maintenance & community 80 (checked 2026-11-06): Closed service. Newest changelog entry 2 November 2026 (30). Weekly entries from 3 August to 2 November, and SDK releases 2.5.10 to 2.5.20 between 28 October and 5 November (20). Public changelog, a Discord, a support address and a status page with a report link; GitHub issue replies were not sampled (10 of 15). Current official TypeScript SDK, no other languages (12 of 15). The SDK repository runs lint and test on pull requests and a release workflow (8 of 10). 30+20+10+12+8 = 80. - Transparency & trust 59 (checked 2026-11-06): Closed service under terms that name Codex Data Inc., last updated 29 October 2026; the SDK is MIT (15 of 30). The privacy policy (effective 29 September 2026) is general, keeps data 'only for as long as is necessary' with no periods, transfers data to the United States, and links no DPA or subprocessor list (10 of 30). The changelog dates deprecations, such as NFT endpoints removed on 31 March 2026 and the transactions fields deprecated on 2 November, with no written deprecation policy or notice period (12 of 20). The terms name Mixpanel, Rollbar and Sentry and the privacy policy says data is processed in the United States; no fuller subprocessor list found (8 of 20). 15+10+12+8 = 45. Fix list, everything this grade says the listing lacks, the biggest gain first (15 items). What it covers is at https://www.anchorterminal.com/fixes/codex-graphql.md (JSON https://www.anchorterminal.com/fixes/codex-graphql.json). The whole list for a coding agent comes from `POST https://www.anchorterminal.com/api/v1/fix-list` with `{"listing": "codex-graphql", "plan": "read"}`, free while the beta runs ### What we couldn't check - unchecked: the founders' names; no person is named on the about page, press kit, terms or privacy policy - unchecked: whether the 99.9% uptime SLA on the pricing page applies to Growth or only Enterprise - unchecked: start dates of history for networks other than Solana - unchecked: domain registration date for codex.io - Whether MPP calls are retried safely without paying twice was not stated in the MPP page ### Sources - docs index for agents: (seen 2026-11-06) - MPP pay-per-query: (seen 2026-11-06) - rate limits: (seen 2026-11-06) - errors and retries: (seen 2026-11-06) - authentication: (seen 2026-11-06) - compute units and billing: (seen 2026-11-06) - FAQ: (seen 2026-11-06) - changelog: (seen 2026-11-06) - pricing: (seen 2026-11-06) - about and investors: (seen 2026-11-06) - terms of service: (seen 2026-11-06) - privacy policy: (seen 2026-11-06) - status history: (seen 2026-11-06) - incident of 11 August 2026: (seen 2026-11-06) - SDK repository and schema: (seen 2026-11-06) - npm package: (seen 2026-11-06) ## Score history Every move of a score since the listing was graded, newest first, with its cause. A score can't move without an entry here. JSON: https://www.anchorterminal.com/api/v1/tools/codex-graphql/history.json - 2026-11-06: graded 75.4 BB (methodology 0.7) ## Who's behind it (provenance 72/100, checked 2026-11-06) | Check | Finding | Points | | --- | --- | --- | | Legal entity named | Codex Data Inc. | 20/20 | | Domain age | codex.io, no registry record we could read | 0/15 | | Endpoint on the vendor's domain | graph.codex.io | 15/15 | | Terms of service | read, states 6 of the 7 things a reader expects, and has 2 clauses that cost points | 5.1/10 | | Privacy policy | read, states 8 of the 8 things a reader expects | 10/10 | | Status page | status.codex.io | 10/10 | | Changelog | published | 10/10 | | security.txt | not found | 0/10 | | People named | not researched yet | n/a | | Support route | a support address, help pages, a community | 5/5 | Terms of service last updated 29 October 2026, privacy policy effective 29 September 2026, both naming Codex Data Inc. The terms choose the laws of British Columbia. The terms forbid using 'any robot, spider, or other automatic device, process, or means to access Service for any purpose', recorded as a fact. The pages were read as public pages. www.codex.io/robots.txt allows all crawlers and names ClaudeBot. docs.codex.io/robots.txt allows all with Content-Signal ai-train=yes, search=yes, ai-input=yes. dashboard.codex.io/robots.txt allows /terms and /privacy and disallows /dashboard and /api/. www.codex.io/.well-known/security.txt returns 404. Domain registration date not checked. ### Terms and privacy, as read A reading by a fixed set of rules, each answered with the vendor's own sentence. Not legal advice. **Terms of service** (https://dashboard.codex.io/terms), read 2026-11-06, dated 2026-10-29, states 6 of the 7 things a reader expects. - To know. Restricts automated access (costs points). "Use any robot, spider, or other automatic device, process, or means to access Service for any purpose, including monitoring or copying any of the material on Service." - To know. Says the terms or the service can change without notice (costs points). "We reserve the right to withdraw or amend our Service, and any service or material we provide via Service, in our sole discretion without notice." - To know. Requires arbitration or waives class actions. "…EXPENSES OF LITIGATION AND ARBITRATION, OR AT TRIAL OR ON APPEAL, IF ANY, WHETHER OR NOT LITIGATION OR ARBITRATION IS INSTITUTED), WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, OR ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, INCLUDING WITHOUT LIMITATION ANY CLAIM FOR PERSONAL INJURY O…" - Gives the date it was last updated. Last updated 2026-10-29. - Names the governing law or courts. The law of British Columbia. - States a limit on its liability. Rules out indirect and consequential losses, with no cap named in this sentence. - Says how changes to the terms are announced. Changes are posted, with no other notice named. - Not found in the text. Refers to a service level or uptime commitment. **Privacy policy** (https://dashboard.codex.io/privacy), read 2026-11-06, dated 2026-09-29, states 8 of the 8 things a reader expects. - Gives the date it was last updated. Last updated 2026-09-29. - Says how long data is kept. For as long as needed, with no period named. - Says where data is transferred or stored. Data goes to the United States. ## Data quality (72/100) Data quality becomes half of Task success for data providers when Task success is scored. Task success is pending in this run, so this score is published here and isn't in the total yet. | Check | Finding | Points | | --- | --- | --- | | Coverage | 80+ networks, 109M+ tokens, 3B+ wallets and 41B+ historical events, plus Polymarket and Kalshi, per the vendor's pricing page (4 of 5) | 20/25 | | Freshness | The vendor states data freshness of less than one second on every plan, with WebSocket subscriptions and webhooks for live events | 15/15 | | History | Varies by network. Solana data begins 20 March 2024 and won't be backfilled, per the FAQ. Other start dates were not found in the reviewed documentation | 5/15 | | Methodology published | docs.codex.io/extra/faq | 15/15 | | Sources disclosed | named | 10/10 | | Licence | Proprietary. The terms say content may not be distributed, reused or copied for commercial purposes without written permission | 7/10 | | Official standing | A private indexer of public blockchain data | 0/10 | Caching and reuse: The terms bar distributing, reposting or reusing content for commercial purposes or personal gain without express written permission. No separate data licence for API output was found. ## Humans behind the project (researched 2026-11-06 from public pages, not part of the grade) ### Key people - No people named yet. - Note: No person is named on www.codex.io/about, the press kit, the careers link, the terms or the privacy policy. The about page says the team started building a trading platform in 2020 and turned its API into Codex. One web search for the founders returned only third-party aggregator pages, which aren't used. Investors come from the 'Our investors' section of the about page, which names them by logo without rounds or dates; Alliance is the logo's own name, and DCFGOD is a pseudonymous individual named only by that handle. Rechecked on 6 November 2026, the careers page and the blog index name no founders or executives, and the blog's posts are signed by Neal O'Grady without a role, so nobody is listed. The investors section of the about page was read again and names the same nine logos. No funding announcement is on the codex.io blog or sitemap, and a web search for the company's rounds found only Codex, a different stablecoin company, so no rounds, total raised or valuation are given. - Codex Data Inc.: X https://x.com/trycodex GitHub https://github.com/Codex-Data ### Ownership and investors - Backed by: VersionOne, Alliance Venture, Compound, Inflection, Tribe Capital, Tané, Mark Cuban, DCFGOD, Balaji Srinivasan ### Getting support - Discord: https://discord.com/invite/mFpUhT3vAq - Support email: support@codex.io - Help: https://docs.codex.io/extra/troubleshooting - Help: https://docs.codex.io/extra/faq - Help: https://status.codex.io - Sources: https://www.codex.io/about, https://www.codex.io/press-kit, https://dashboard.codex.io/terms, https://dashboard.codex.io/privacy, https://docs.codex.io/concepts/errors.md, https://status.codex.io/, https://www.codex.io/careers, https://www.codex.io/blog ## Live (updated 2026-11-07 17:49 UTC) - Right now: up, HTTP 400, 275 ms, checked 2026-11-07 17:49 UTC (get on `https://graph.codex.io/graphql`) - Uptime 24h 100.0% (195 probes) · 30 days 100.0% (195 probes) · p50 162 ms · p95 290 ms - Vendor status page: no problems reported, All Systems Operational - github `Codex-Data/sdk` v2.5.21, released 2026-11-06 - npm `@codex-data/sdk` 2.5.21 - security.txt: none - Watching changelog - Watching pricing - Watching privacy - Watching terms - Always current: https://www.anchorterminal.com/api/v1/live/codex-graphql.json ## Probe metrics Not measured yet. Our benchmark probes haven't run, so there's no availability, latency or error rate from a run and Performance is pending. Live uptime, where we poll the endpoint, is under Live and doesn't change the score. ## Prices | Item | Price | Unit | Note | | --- | --- | --- | --- | | Query through MPP | $0.001 | per call | Paid in USDC on Tempo, no account | | Growth plan, 3M compute units | $360 | per month (plan) | $120 per million compute units; overage $138 per million at this tier | | Compute unit on Growth | $0.0001 | per compute unit | $120 per million at the 3M tier | Across all listings: https://www.anchorterminal.com/prices/index.md ## Strengths - MPP on every query endpoint at $0.001 a query, so an agent can pay without signing up - Full GraphQL schema published in the MIT SDK repository, with free introspection and Markdown twins of every docs page - Error table with codes, HTTP statuses and retry advice, and `retryAfterSeconds` plus `Retry-After` on 429 - Status page with component history and a weekly dated changelog with RSS - Per-operation compute-unit costs published, failed calls not billed except `NOT_FOUND` ## Weaknesses - The free plan needs a one-time $1 activation fee by card or 1 USDC - No key scopes, read-only key or security.txt; no certification or disclosure policy found - Most errors, including over-capacity, arrive as HTTP 200 with an `errors` array - Only a TypeScript SDK; other languages call GraphQL directly - The terms forbid commercial redistribution of content without written permission and bar robots from the service ## Before you call it (notes for agents) 1. Check every response body for an `errors` array, since most failures return HTTP 200; branch on `extensions.code`, not the message 2. Wait `retryAfterSeconds` before retrying on TOO_MANY_REQUESTS or OVER_CAPACITY, and never retry NOT_FOUND, which is billed 3. Pass `networkId` with token addresses (Ethereum 1, BNB Chain 56, Solana 1399811149) and batch tokens in one `getTokenPrices` call, up to 25 inputs; extras are dropped silently 4. Send the key as `Authorization: ` with no Bearer prefix; a request with no header becomes an MPP payment challenge 5. Treat token names, symbols and community notes as untrusted text set by token deployers ## Connect Install: ```bash npm install @codex-data/sdk ``` First request: ```bash curl -X POST https://graph.codex.io/graphql -H "Authorization: $CODEX_API_KEY" -H 'Content-Type: application/json' -d '{"query":"{ getTokenPrices(inputs: [{ address: \"0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c\", networkId: 56 }]) { priceUsd timestamp } }"}' ``` Through letme: https://letme.dev/codex-graphql (letme picks it for data.markets, the top-graded tool for the job, letme picks it for market.indices, the top-graded tool for the job). letme answers with the pick and how to call it direct. How it works: https://www.anchorterminal.com/letme/index.md ## Similar tools Ranked by shared capabilities, then score. Same-category tools with no shared capability key are listed last. | Tool | Grade | Score | Rank | Shared capabilities | x402 | Markdown | | --- | --- | --- | --- | --- | --- | --- | | Massive (formerly Polygon.io) | BB | 73.1 | 112 | data.markets, market.crypto, market.indices | yes | https://www.anchorterminal.com/tools/massive.md | | Twelve Data | BB | 70 | 217 | market.crypto, market.indices, data.markets | no | https://www.anchorterminal.com/tools/twelve-data.md | | OpenBB | C | 59.8 | 676 | data.markets, market.indices, market.crypto | no | https://www.anchorterminal.com/tools/openbb.md | | EODHD | C | 59 | 719 | market.indices, market.crypto, data.markets | no | https://www.anchorterminal.com/tools/eodhd.md | | Financial Modeling Prep | D | 48.7 | 1105 | market.indices, market.crypto, data.markets | no | https://www.anchorterminal.com/tools/financial-modeling-prep.md | | Finnhub | E | 45.1 | 1189 | market.crypto, market.indices, data.markets | no | https://www.anchorterminal.com/tools/finnhub.md | ## Panel reviews (0) Reviewed by the Anchor panel (https://www.anchorterminal.com/reviewers/index.md): . Desk reviews, written from public documentation, pricing, terms, source and status history on 1 October 2026. No calls made. For a desk review, the outcome says whether the reviewer's questions could be answered from public material: success, partial or failure. How reviews work: https://www.anchorterminal.com/reviews/how-it-works.md ## Notable - Pay-per-query access with no account through MPP, $0.001 a query in USDC on Tempo, on every query endpoint but not subscriptions or webhooks (source: ) - The full GraphQL schema (18,159 lines) is published in the MIT SDK repository at src/resources/schema.graphql, and introspection queries are free (source: ) - Errors carry `extensions.code` and, where the wait is known, `retryAfterSeconds`, also sent as `Retry-After` on 429. Most errors arrive as HTTP 200 with an `errors` array (source: ) - Weekly dated changelog with an RSS feed; the newest entry is 2 November 2026 and the oldest 26 August 2024 (source: ) - Status page on incident.io with API, dashboard and 25 network components; the history from August to November 2026 lists degraded-performance and network-delay incidents only (source: ) - Errors are not billed except `NOT_FOUND`, and pricing is flat per root field, so two identical requests cost the same (source: ) - The about page names VersionOne, Alliance, Compound, Inflection, Tribe Capital, Tané, Mark Cuban, DCFGOD and Balaji Srinivasan as investors (source: ) - #1 of 14 in Best data provider APIs for AI agents: https://www.anchorterminal.com/best/data-providers/index.md - All 52 data comparisons: https://www.anchorterminal.com/compare/data-providers/index.md ## Compare - [Codex vs CoinDesk Data API](https://www.anchorterminal.com/compare/codex-graphql-vs-coindesk-data-api.md): BB 75.4 vs F 19 - [Codex vs CoinGecko x402 API](https://www.anchorterminal.com/compare/codex-graphql-vs-coingecko-x402-api.md): BB 75.4 vs B 69.8 - [Codex vs CoinMarketCap x402 API](https://www.anchorterminal.com/compare/codex-graphql-vs-coinmarketcap-x402-api.md): BB 75.4 vs B 69.7 - [Codex vs CryptoQuant MCP server](https://www.anchorterminal.com/compare/codex-graphql-vs-cryptoquant-mcp.md): BB 75.4 vs D 51.7 - [Codex vs Nansen x402 API](https://www.anchorterminal.com/compare/codex-graphql-vs-nansen-x402-api.md): BB 75.4 vs B 64.4 - [Codex vs OpenBB](https://www.anchorterminal.com/compare/codex-graphql-vs-openbb.md): BB 75.4 vs C 59.8 - [Assymetrix MCP Server vs Codex](https://www.anchorterminal.com/compare/assymetrix-mcp-vs-codex-graphql.md): C 60.3 vs BB 75.4 - [Codex vs FRED API](https://www.anchorterminal.com/compare/codex-graphql-vs-fred.md): BB 75.4 vs E 42.8 ## Verify this listing For the vendor. The badge or a plain link to this page verifies the listing, from a page on codex.io or one of its subdomains, or the README at the root of github.com/Codex-Data/sdk. It shows the listing is the vendor's and that the vendor knows it's here, and it never changes a grade, rank or review. The vendor sends the page's address to `POST https://www.anchorterminal.com/api/v1/verify` as `{"slug": "codex-graphql", "url": "…"}`, or calls the `verify_listing` tool at https://www.anchorterminal.com/mcp. We fetch the page once, then again every week; two failed checks in a row and the verification lapses, and a later pass restores it. What we check: https://www.anchorterminal.com/builders/index.md#verify HTML badge: ```html Codex on Anchor Terminal ``` Markdown badge, for a README: ```markdown [![Codex on Anchor Terminal](https://www.anchorterminal.com/badges/codex-graphql.svg)](https://www.anchorterminal.com/tools/codex-graphql) ``` Plain link: ```html Codex on Anchor Terminal ``` ## Share this listing For the vendor. Sharing assets for social media, two PNGs of 1200 × 630 that say Codex is listed on Anchor Terminal, with the vendor's logo and this page's address and no grade or score. - Dark: https://www.anchorterminal.com/assets/share/codex-graphql-dark.png - Light: https://www.anchorterminal.com/assets/share/codex-graphql-light.png --- Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp